Publications
| Title | Abstract | Year Filter | PMID(sorted descending) Filter |
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| effect of water management and silicon on germination, growth, phosphorus and arsenic uptake in rice. | silicon (si) is the 2nd most abundant element in soil which is known to enhance stress tolerance in wide variety of crops. arsenic (as), a toxic metalloid enters into the human food chain through contaminated water and food or feed. to alleviate the deleterious effect of as on human health, it is a need of time to find out an effective strategy to reduce the as accumulation in the food chain. the experiments were conducted during september-december 2014, and 2016 to optimize si concentration for ... | 2017 | 28599126 |
| cadmium accumulation characteristics of low-cadmium rice (oryza sativa l.) line and f1 hybrids grown in cadmium-contaminated soils. | cadmium (cd) pollution has threatened severely to food safety and human health. a pot experiment and a field experiment were conducted to investigate the difference of cd accumulation between rice (oryza sativa l.) lines and f1 hybrids in cd-contaminated soils. the adverse effect on biomass of rice lines was greater than that of f1 hybrids under cd treatments in the pot experiment. the variations of cd concentration among rice cultivars in different organs were smaller in stem and leaf, but larg ... | 2017 | 28597385 |
| metabolomics analysis of rice responses to salinity stress revealed elevation of serotonin, and gentisic acid levels in leaves of tolerant varieties. | a gc-ms based analytical approach was undertaken in order to understand the metabolomic responses of seedlings of two salt sensitive (sujala and mtu 7029) and two tolerant varieties (bhutnath, and nonabokra) of indica rice (oryza sativa l.) to nacl induced stress. the four varieties responded differently to nacl treatment with respect to the conserved primary metabolites (sugars, polyols, amino acids, organic acids and certain purine derivatives) of the leaf of rice seedlings. however, there wer ... | 0 | 28594277 |
| root determined nodulation1 is required for m. truncatula cle12, but not cle13, peptide signaling through the sunn receptor kinase. | the combinatorial interaction of a receptor kinase and a modified cle peptide is involved in several developmental processes in plants, including autoregulation of nodulation (aon), which allows legumes to limit the number of root nodules formed based on available nitrogen and previous rhizobial colonization. evidence supports the modification of cle peptides by enzymes of the hydroxyproline o-arabinosyltransferase (hpat/rdn) family. here, we show by grafting and genetic analysis in medicago tru ... | 2017 | 28592666 |
| duplication and loss of function of genes encoding rna polymerase iii subunit c4 causes hybrid incompatibility in rice. | reproductive barriers are commonly observed in both animals and plants, in which they maintain species integrity and contribute to speciation. this report shows that a combination of loss-of-function alleles at two duplicated loci, duplicated gametophytic sterility 1 (dgs1) on chromosome 4 and dgs2 on chromosome 7, causes pollen sterility in hybrid progeny derived from an interspecific cross between cultivated rice, oryza sativa, and an asian annual wild rice, o. nivara male gametes carrying the ... | 2017 | 28592558 |
| comparative mapping of seed dormancy loci between tropical and temperate ecotypes of weedy rice (oryza sativa l.). | genotypic variation at multiple loci for seed dormancy (sd) contributes to plant adaptation to diverse ecosystems. weedy rice (oryza sativa) was used as a model to address the similarity of sd genes between distinct ecotypes. a total of 12 quantitative trait loci (qtl) for sd were identified in one primary and two advanced backcross (bc) populations derived from a temperate ecotype of weedy rice (34.3°n lat.). nine (75%) of the 12 loci were mapped to the same positions as those identified from a ... | 2017 | 28592557 |
| mir397/laccase gene mediated network improves tolerance to fenoxaprop-p-ethyl in beckmannia syzigachne and oryza sativa. | herbicide resistance can be either target-site or non-target-site based. the molecular mechanisms underlying non-target-site resistance (ntsr) are poorly understood, especially at the level of gene expression regulation. micrornas (mirnas) represent key post-transcriptional regulators of eukaryotic gene expression and play important roles in stress responses. in this study, the mir397 gene from beckmannia syzigachne (referred to as bsy-mir397) was functionally characterized to determine its role ... | 2017 | 28588605 |
| evaluating hyperspectral vegetation indices for leaf area index estimation of oryza sativa l. at diverse phenological stages. | hyperspectral reflectance derived vegetation indices (vis) are used for non-destructive leaf area index (lai) monitoring for precise and efficient n nutrition management. this study tested the hypothesis that there is potential for using various hyperspectral vis for estimating lai at different growth stages of rice under varying n rates. hyperspectral reflectance and crop canopy lai measurements were carried out over 2 years (2015 and 2016) in meichuan, hubei, china. different n fertilization, ... | 2017 | 28588596 |
| quantitative trait loci analysis of blast resistance in oryza sativa l. 'hokuriku 193'. | to investigate the genetic background responsible for blast resistance in oryza sativa l. 'hokuriku 193', qtl analysis was conducted using the f3 lines from the cross [ms-bo] nekken 2 × hokuriku 193 that were artificially infected with rice blast fungus (magnaporthe grisea). qtls were detected on chromosomes 1, 4, 6 and 12 that correlated with greater blast resistance in the hokuriku 193-type lines. notably, the qtl on chromosome 12 had a major effect and localized to the same region where pi20( ... | 2017 | 28588393 |
| changes in soil microbial community composition and organic carbon fractions in an integrated rice-crayfish farming system in subtropical china. | integrated rice-crayfish farming system is a highly efficient artificial ecosystem in which the rice (oryza sativa) variety 'jianzhen 2' is cultivated in waterlogged paddy fields along with crayfish (procambarus clarkii). we investigated soil carbon fractions and microbial community structure by phospholipid fatty acids (plfa) analysis in a 10-year field experiment using an integrated rice-crayfish (cr) model and a rice monoculture (mr) model at soil depths of 0-10 cm, 10-20 cm, 20-30 cm, and 30 ... | 2017 | 28588212 |
| comparative study of lectin domains in model species: new insights into evolutionary dynamics. | lectins are present throughout the plant kingdom and are reported to be involved in diverse biological processes. in this study, we provide a comparative analysis of the lectin families from model species in a phylogenetic framework. the analysis focuses on the different plant lectin domains identified in five representative core angiosperm genomes (arabidopsisthaliana, glycine max, cucumis sativus, oryza sativa ssp. japonica and oryza sativa ssp. indica). the genomes were screened for genes enc ... | 2017 | 28587095 |
| fine mapping of a quantitative trait locus for spikelet number per panicle in a new plant type rice and evaluation of a near-isogenic line for grain productivity. | total spikelet number per panicle (tsn) is one of the determinants of grain productivity in rice (oryza sativa l.). in this study, we attempted to detect quantitative trait loci (qtls) for tsn in the introgression lines with high tsn, derived from the cross of indica group variety ir 64 with new plant type lines. two qtls were detected on the long arm of chromosome 12: qtsn12.1 in the bc4f2 population of yth63/ir 64 and qtsn12.2 in the bc4f3 population of yth83/ir 64. tsn of the main tiller was ... | 2017 | 28582550 |
| allelic variants of oshkt1;1 underlie the divergence between indica and japonica subspecies of rice (oryza sativa) for root sodium content. | salinity is a major factor limiting crop productivity. rice (oryza sativa), a staple crop for the majority of the world, is highly sensitive to salinity stress. to discover novel sources of genetic variation for salt tolerance-related traits in rice, we screened 390 diverse accessions under 14 days of moderate (9 ds·m-1) salinity. in this study, shoot growth responses to moderate levels of salinity were independent of tissue na+ content. a significant difference in root na+ content was observed ... | 2017 | 28582424 |
| rice gene sdl/rnrs1, encoding the small subunit of ribonucleotide reductase, is required for chlorophyll synthesis and plant growth development. | a new mutant named sdl (stripe and drooping leaf) was characterized from indica cultivar zhenong 34 by ethylmethane sulfonate (ems) mutagenesis. the mutant sdl exhibited development defects including stripe and drooping leaf, dwarfism and deformed floral organs. the gene sdl was found allelic to rnrs1 by map-based cloning, which was homologous to arabidopsis tso2 encoding the small subunit of ribonucleotide reductase. the gdna sequencing results of sdl in mutant showed that there was a repetitiv ... | 2017 | 28578018 |
| ethanol production from rice (oryza sativa) straw by simultaneous saccharification and cofermentation. | ethanol production from alkali treated rice straw was investigated by simultaneous saccharification and cofermentation (sscf) using commercial cellulase and 3 different yeast strains viz., saccharomyces cerevisiae hau-1, pachysolen tannophilus and candida sp. individually as well as in combination at varied fermentation temperature and incubation time. dilute alkali (2%) pretreatment of straw resulted in efficient delignification as observed by low residual lignin (12.52%) with 90.6% cellulose a ... | 2016 | 28577514 |
| the sequences of 1504 mutants in the model rice variety kitaake facilitate rapid functional genomic studies. | the availability of a whole-genome sequenced mutant population and the cataloging of mutations of each line at a single-nucleotide resolution facilitate functional genomic analysis. to this end, we generated and sequenced a fast-neutron-induced mutant population in the model rice cultivar kitaake (oryza sativa ssp japonica), which completes its life cycle in 9 weeks. we sequenced 1504 mutant lines at 45-fold coverage and identified 91,513 mutations affecting 32,307 genes, i.e., 58% of all rice g ... | 2017 | 28576844 |
| reactive oxygen species induced by heat stress during grain filling of rice (oryza sativa l.) are involved in occurrence of grain chalkiness. | heat stress during grain filling increases rice grain chalkiness due to increased activity of α-amylase, which hydrolyzes starch. in rice and barley seeds, reactive oxygen species (ros) produced after imbibition induce α-amylase activity via regulation of gibberellin (ga) and abscisic acid (aba) levels during seed germination. here, we examined whether ros is involved in induction of grain chalkiness by α-amylase in developing rice grains under heat stress. to elucidate the role of ros in grain ... | 2017 | 28575747 |
| regulation of gene expression in the remobilization of carbon reserves in rice stems during grain filling. | carbon reserves in rice straw (stem and sheath) before flowering contribute to a significant portion of grain filling. however, the molecular mechanism of carbon reserve remobilization from straw to grains remains unclear. in this study, super rice lyp9 and conventional rice 9311 showed different carbon reserve remobilization behaviors. the transcriptomic profiles of straws of lyp9 and 9311 were analyzed at three stages of grain filling. among the differentially expressed genes (dgs), 5,733 gene ... | 2017 | 28575477 |
| the incidence and effects of hybridization between cultivated rice and its related weed red rice (oryza sativa l.). | the objectives of this study were (1) to determine if hybridization occurs naturally between cultivated rice and a closely related weed, red rice (both oryza sativa l.) and (2) to determine the incidence of hybridization and possible convergence of red rice with cultivated rice. both morphological and electrophoretic characters were used to confirm the existence of hybrids. a total of 12,000 seeds were collected from red rice plants from fields of six different rice cultivars and sown in a commo ... | 1990 | 28569027 |
| evolutionary relationships and expression analysis of eul domain proteins in rice (oryza sativa). | lectins, defined as 'proteins that can recognize and bind specific carbohydrate structures', are widespread among all kingdoms of life and play an important role in various biological processes in the cell. most plant lectins are involved in stress signaling and/or defense. the family of euonymus-related lectins (euls) represents a group of stress-related lectins composed of one or two eul domains. the latter protein domain is unique in that it is ubiquitous in land plants, suggesting an importa ... | 2017 | 28560587 |
| genetic architecture of anther extrusion in spring and winter wheat. | hybrid wheat breeding is gaining prominence worldwide because it ensures higher and more static yield than conventionally bred varieties. the cleistogamous floral architecture of wheat (triticum aestivum l.) impedes anthers inside the floret, making it largely an inbreeder. for hybrid seed production, high anther extrusion is needed to promote cross pollination and to ensure a high level of pollen availability for the seed plant. this study, therefore, aimed at the genetic dissection of anther e ... | 2017 | 28559904 |
| dating rice remains through phytolith carbon-14 study reveals domestication at the beginning of the holocene. | phytolith remains of rice (oryza sativa l.) recovered from the shangshan site in the lower yangtze of china have previously been recognized as the earliest examples of rice cultivation. however, because of the poor preservation of macroplant fossils, many radiocarbon dates were derived from undifferentiated organic materials in pottery sherds. these materials remain a source of debate because of potential contamination by old carbon. direct dating of the rice remains might serve to clarify their ... | 2017 | 28559349 |
| effect of different silage storing conditions on the oxygen concentration in the silo and fermentation quality of rice. | we investigated the effects of different silage storing conditions on the oxygen concentration in the silo and fermentation quality of rice (oryza sativa l.). forage rice was ensiled in bottles (with or without space at the bottlemouth, with solid or pinhole cap, and with oxygen scavenger, ethanol transpiration agent, oxygen scavenger and ethanol transpiration agent, or no adjuvant) and stored for 57 days. the oxygen concentration decreased with the addition of the oxygen scavenger and increased ... | 2017 | 28558215 |
| yellow-leaf 1 encodes a magnesium-protoporphyrin ix monomethyl ester cyclase, involved in chlorophyll biosynthesis in rice (oryza sativa l.). | magnesium-protoporphyrin ix monomethyl ester cyclase (mpec) catalyzes the conversion of mpme to divinyl protochlorophyllide (dvpchlide). this is an essential enzyme during chlorophyll (chl) biosynthesis but details of its function in rice are still lacking. here, we identified a novel rice mutant yellow-leaf 1 (yl-1), which showed decreased chl accumulation, abnormal chloroplast ultrastructure and attenuated photosynthetic activity. map-based cloning and over-expression analysis suggested that y ... | 2017 | 28558018 |
| the buffering capacity of stems: genetic architecture of nonstructural carbohydrates in cultivated asian rice, oryza sativa. | harnessing stem carbohydrate dynamics in grasses offers an opportunity to help meet future demands for plant-based food, fiber and fuel production, but requires a greater understanding of the genetic controls that govern the synthesis, interconversion and transport of such energy reserves. we map out a blueprint of the genetic architecture of rice (oryza sativa) stem nonstructural carbohydrates (nsc) at two critical developmental time-points using a subpopulation-specific genome-wide association ... | 2017 | 28556941 |
| three tob1-related yabby genes are required to maintain proper function of the spikelet and branch meristems in rice. | yabby genes play important roles in the development of lateral organs such as leaves and floral organs in angiosperms. however, the function of yabby genes is poorly understood in monocots. we focused on three rice (oryza sativa) yabby genes, tongari-boushi (tob1, tob2, tob3), which are closely related to arabidopsis (arabidopsis thaliana) filamentous flower (fil). to elucidate the function of these yabby genes, we employed a reverse genetic approach. tob genes were expressed in bract and latera ... | 2017 | 28556940 |
| proteomic analysis of rice seedlings under cold stress. | low temperature can greatly restrict the growth and development of rice. the rice seedlings show growth retardation, lamina wrap, and part of blade even died under the condition of low temperature. in order to get more information about cold stress responses in rice, two dimensional electrophoresis and bioinformatics analysis of mass spectrometry were used to preliminary survey the cold tolerance of cold sensitive line 9311 and cold resistance variety fujisaka 5 under cold stress. two dimensiona ... | 2017 | 28555319 |
| conformational characteristics of rice hexokinase oshxk7 as a moonlighting protein involved in sugar signalling and metabolism. | hexokinase (hxk) as a moonlighting protein involves in glucose metabolism and signalling to regulate growth and development in plants. therefore, the clarification for the structural properties of oshxk7 (oryza sativa hexokinase 7) is essential to understand its role mechanism associated with the glc signalling and metabolism. in this study, the structural characteristics of oshxk7 (oryza sativa hexokinase 7) were identified. in the fluorescence spectrum, the trp peak representing oshxk7 binding ... | 2017 | 28555318 |
| global transcriptome analysis of combined abiotic stress signaling genes unravels key players in oryza sativa l.: an in silico approach. | combined abiotic stress (cabs) affects the field grown plants simultaneously. the multigenic and quantitative nature of uncontrollable abiotic stresses complicates the process of understanding the stress response by plants. considering this, we analyzed the cabs response of c3 model plant, oryza sativa by meta-analysis. the datasets of commonly expressed genes by drought, salinity, submergence, metal, natural expression, biotic, and abiotic stresses were data mined through publically accessible ... | 2017 | 28555143 |
| residue behaviors and dietary risk assessment of dinotefuran and its metabolites in oryza sativa by a new hplc-ms/ms method. | in this study, we developed a new method to detect dinotefuran and its metabolites (uf and dn) in oryza sativa (rice) by hplc-ms/ms in multiple reaction monitoring (mrm) modes. the recovery rates for dinotefuran, uf and dn were 82.3-85.8%, 83.7-89.0%, and 81.6-90.2%, respectively. the dissipation kinetics of dinotefuran in rice followed a combined first+first kinetic model, where the half-lives of dinotefuran and its metabolites were determined to be between 0.5 and 2.3days. the dinotefuran resi ... | 2017 | 28554625 |
| sgd1, a key enzyme in tocopherol biosynthesis, is essential for plant development and cold tolerance in rice. | tocopherols, a group of vitamin e compounds, are essential components of the human diet. in contrast to well documented roles in animals, the functions of tocopherols in plants are less understood. in this study, we characterized two allelic rice dwarf mutant lines designated sgd1-1 and sgd1-2 (small grain and dwarf1). histological observations showed that the dwarf phenotypes were mainly due to cell elongation defects. a map-based cloning strategy and subsequent complementation test showed that ... | 2017 | 28554480 |
| pdhs-svm: a prediction method for plant dnase i hypersensitive sites based on support vector machine. | dnase i hypersensitive sites (dhss) are accessible chromatin regions hypersensitive to cleavages by dnase i endonucleases. dhss are indicative of cis-regulatory dna elements (cres), all of which play important roles in global gene expression regulation. it is helpful for discovering cres by recognition of dhss in genome. to accelerate the investigation, it is an important complement to develop cost-effective computational methods to identify dhss. however, there is a lack of tools used for ident ... | 2017 | 28552554 |
| mir529a modulates panicle architecture through regulating squamosa promoter binding-like genes in rice (oryza sativa). | mir529a affects rice panicle architecture by targeting osspl2,osspl14 and osspl17 genes that could regulate their downstream panicle related genes. the panicle architecture determines the grain yield and quality of rice, which could be regulated by many transcriptional factors. the squamosa promoter binding-like (spl) transcription factors are involved in the regulation of panicle development, which are targeted by mir156 and mir529. the expression profile demonstrated that mir529a is preferenti ... | 2017 | 28551765 |
| authenticity testing of environment-friendly korean rice (oryza sativa l.) using carbon and nitrogen stable isotope ratio analysis. | the increasing demand for organic foods creates, in turn, a pressing need for the development of more accurate tools for the authentication of organic food in order to ensure both fair trade and food safety. this study examines the feasibility of δ13c and δ15n analyses as potential tools for authentication of environment-friendly rice sold in korea. δ13c and δ15n examination in different rice grains showed that environment-friendly rice can be successfully distinguished from conventional rice. n ... | 2017 | 28551256 |
| the pseudoenzyme pdx1.2 sustains vitamin b6 biosynthesis as a function of heat stress. | plants sense temperature changes and respond by altering growth and metabolic activity to acclimate to the altered environmental conditions. the b vitamins give rise to vital coenzymes that are indispensable for growth and development but their inherent reactive nature renders them prone to destruction especially under stress conditions. therefore, plant survival strategies would be expected to include mechanisms to sustain b vitamin supply under demanding circumstances. here, using the example ... | 2017 | 28550206 |
| the dth8-hd1 module mediates day-length-dependent regulation of rice flowering. | photoperiodic flowering is one of the most important pathways to govern flowering in rice (oryza sativa), in which heading date 1 (hd1), an ortholog of the arabidopsis constans gene, encodes a pivotal regulator. hd1 promotes flowering under short-day conditions (sd) but represses flowering under long-day conditions (ld) by regulating the expression of heading date 3a (hd3a), the flowering locus t (ft) ortholog in rice. however, the molecular mechanism of how hd1 changes its regulatory activity i ... | 2017 | 28549969 |
| maintenance of phosphate homeostasis and root development are coordinately regulated by myb1, an r2r3-type myb transcription factor in rice. | the adaptive responses of plants to phosphate (pi) starvation stress are fine-tuned by an elaborate regulatory network. in this study, we identified and characterized a novel pi starvation-responsive gene, myb1, encoding an r2r3-type transcription factor in rice. myb1 was transcriptionally induced in leaf sheaths and old leaf blades. it was localized to the nucleus and expressed mainly in vascular tissues. mutation of myb1 led to an increase in pi uptake and accumulation, accompanied by altered ... | 2017 | 28549191 |
| integration of cerium chemical forms and subcellular distribution to understand cerium tolerance mechanism in the rice seedlings. | rare earth elements (rees) accumulate in the soil and ecosystem. cerium (ce) is one of the main additives in ree-containing fertilizers. however, little information is available on ce distribution patterns and chemical forms in rice. the subcellular distribution and chemical forms of ce were investigated in the rice seedlings (oryza sativa l., cv. zhonghua 11) exposed to 0, 10, 20, 40, 80, and 160 μm ce. the elongation of root and shoot was significantly inhibited by 20, 40, 80, and 160 μm ce. c ... | 2017 | 28547370 |
| low-cesium rice: mutation in ossos2 reduces radiocesium in rice grains. | in japan, radiocesium contamination in foods has become of great concern and it is a primary issue to reduce grain radiocesium concentration in rice (oryza sativa l.). here, we report a low-cesium rice mutant 1 (lcs1) with the radiocesium concentration in grain about half that in the wild-type cultivar. genetic analyses revealed that a mutation in ossos2, which encodes a serine/threonine-protein kinase required for the salt overly sensitive (sos) pathway in plants, is responsible for the decreas ... | 2017 | 28546542 |
| in vitro characterization of thermostable cam rubisco activase reveals a rubisco interacting surface loop. | to maintain metabolic flux through the calvin-benson-bassham cycle in higher plants, dead-end inhibited complexes of rubisco must constantly be engaged and remodeled by the molecular chaperone rubisco activase (rca). in c3 plants, the thermolability of rca is responsible for the deactivation of rubisco and reduction of photosynthesis at moderately elevated temperatures. we reasoned that crassulacean acid metabolism (cam) plants must possess thermostable rca to support calvin-benson-bassham cycle ... | 2017 | 28546437 |
| fine mapping and candidate gene analysis of qtac8, a major quantitative trait locus controlling tiller angle in rice (oryza sativa l.). | rice tiller angle is an important agronomic trait that contributes to crop production and plays a vital role in high yield breeding. in this study, a recombinant inbred line (ril) population derived from the cross of a glabrous tropical japonica rice d50 and an indica rice hb277, was used to investigate quantitative trait loci (qtls) controlling rice tiller angle. two major qtls, qtac8 and qtac9, were detected. while qtac9 mapped with a previously identified gene (tac1), using a bc2f2 population ... | 2017 | 28542427 |
| endophytic fungi piriformospora indica mediated protection of host from arsenic toxicity. | complex intercellular interaction is a common theme in plant-pathogen/symbiont relationship. cellular physiology of both the partners is affected by abiotic stress. however, little is known about the degree of protection each offers to the other from different types of environmental stress. our current study focused on the changes in response to toxic arsenic in the presence of an endophytic fungus piriformospora indica that colonizes the paddy roots. the primary impact of arsenic was observed i ... | 2017 | 28539916 |
| genomic variation associated with local adaptation of weedy rice during de-domestication. | de-domestication is a unique evolutionary process by which domesticated crops are converted into 'wild predecessor like' forms. weedy rice (oryza sativa f. spontanea) is an excellent model to dissect the molecular processes underlying de-domestication. here, we analyse the genomes of 155 weedy and 76 locally cultivated rice accessions from four representative regions in china that were sequenced to an average 18.2 × coverage. phylogenetic and demographic analyses indicate that chinese weedy rice ... | 2017 | 28537247 |
| does arbuscular mycorrhizal fungus affect cadmium uptake and chemical forms in rice at different growth stages? | effects of the arbuscular mycorrhizal fungus (amf) - rhizophagus intraradices (a mix of root pieces, mycelium pieces and spores) on the temporal variation of cd uptake and chemical forms in rice at four growth periods (tillering, jointing, flowering, and ripening stages) were investigated in soil added with 0, 2 and 10mgcdkg-1. results showed that the interactions amongst rice growth stages, soil cd concentrations and mycorrhizal inoculation had significant effects (p˂0.001) on root biomass, str ... | 2017 | 28531965 |
| accumulation, translocation and conversion of six arsenic species in rice plants grown near a mine impacted city. | paddy rice (oryza sativa l.) as the staple food in china was found to be efficient in accumulating arsenic (as) due to cultivated in flooded paddy soil. uptake and translocation of as in rice plant depended on the as species. in this work, rice plant samples including roots, straws and grains as well as rhizosphere soils were collected from paddy fields near changsha, a mine impacted city in southern china. the total as concentrations in the collected samples were observed in the descending orde ... | 2017 | 28531558 |
| rna-seq analysis of gene expression for floral development in crested wheatgrass (agropyron cristatum l.). | crested wheatgrass [agropyron cristatum l. (gaertn.)] is widely used for early spring grazing in western canada and the development of late maturing cultivars which maintain forage quality for a longer period is desired. however, it is difficult to manipulate the timing of floral transition, as little is known about molecular mechanism of plant maturity in this species. in this study, rna-seq and differential gene expression analysis were performed to investigate gene expression for floral initi ... | 2017 | 28531235 |
| influence of amendments on cd and zn uptake and accumulation in rice (oryza sativa l.) in contaminated soil. | cadmium is a toxic metallic element that poses serious human health risks via consumption of contaminated agricultural products. the effect of mixtures of dicalcium phosphate and organic amendments, namely cow manure (md) and leonardite (ld), on cd and zn uptake of three rice cultivars (kdml105, kd53, and psl2) was examined in mesocosm experiments. plant growth, cd and zn accumulation, and physicochemical properties of the test soils were investigated before and after plant harvest. amendment ap ... | 2017 | 28528502 |
| improved stress tolerance and productivity in transgenic rice plants constitutively expressing the oryza sativa glutathione synthetase osgs under paddy field conditions. | reactive oxygen species, which increase under various environmental stresses, have deleterious effects on plants. an important antioxidant, glutathione, is used to detoxify reactive oxygen species in plant cells and is mainly produced by two enzymes: gamma-glutamylcysteine synthetase (γ-ecs) and glutathione synthetase (gs). to evaluate the functional roles of the glutathione synthetase gene (osgs) in rice, we generated four independent transgenic rice plants (tg1-tg4) that overexpressed osgs und ... | 2017 | 28527337 |
| association mapping of yield and yield-related traits under reproductive stage drought stress in rice (oryza sativa l.). | the identification and introgression of major-effect qtls for grain yield under drought are some of the best and well-proven approaches for improving the drought tolerance of rice varieties. in the present study, we characterized malaysian rice germplasm for yield and yield-related traits and identified significant trait marker associations by structured association mapping. | 2017 | 28523639 |
| genomics of interaction between the brown planthopper and rice. | rice (oryza sativa l.) and the brown planthopper (nilaparvata lugens (stål)) form a model system for dissection of the mechanism of interaction between insect pest and crop. in this review, we focus on the genomics of bph-rice interaction. on the side of rice, a number of bph-resistance genes have been identified genetically. thirteen of these genes have been cloned which shed a light on the molecular basis of the interaction. on the aspect of bph, a lot of salivary proteins have been identified ... | 2017 | 28521948 |
| rapid regeneration and ploidy stability of 'cv ir36' indica rice (oryza sativa. l) confers efficient protocol for in vitro callus organogenesis and agrobacterium tumefaciens mediated transformation. | cereal crops are the major targets for transformation mediated crop improvement and ir36 is an early maturing, high yielding, insect and disease resistant rice variety however, it is abiotic stress sensitive. hence, development of an efficient and reproducible micropropagation system via somatic embryogenesis and agrobacterium tumefaciens mediated transformation is prerequisite to develop abiotic stress tolerant ir36. further, genetic stability of analysis of plantlets through rapd and issr and ... | 2013 | 28510899 |
| the extent of ds1 transposon to enrich transcriptomes and proteomes by exonization. | exonization is an event which an intronic transposed element (te) provides splice sites and leads to alternatively spliced cassette exons. without disrupting of the inserted gene's function, tes can expand the proteome diversity by adding the splice variant that encodes a different, yet functional protein. previously, we found that the main contribution of ds exonization for gene divergence is not providing genetic messages but incorporating the intron sequences with different reading frame patt ... | 2013 | 28510860 |
| cytokinin, auxin, and abscisic acid affects sucrose metabolism conduce to de novo shoot organogenesis in rice (oryza sativa l.) callus. | shoot regeneration frequency in rice callus is still low and highly diverse among rice cultivars. this study aimed to investigate the association of plant hormone signaling and sucrose uptake and metabolism in rice during callus induction and early shoot organogenesis. the immatured seeds of two rice cultivars, ai-nan-tsao 39 (ant39) and tainan 11 (tn11) are used in this study. | 2013 | 28510848 |
| the nodulin 26-like intrinsic membrane protein osnip3;2 is involved in arsenite uptake by lateral roots in rice. | previous studies have shown that the nodulin 26-like intrinsic membrane protein (nip) lsi1 (osnip2;1) is involved in arsenite [as(iii)] uptake in rice (oryza sativa). however, the role of other rice nips in as(iii) accumulation in planta remains unknown. in the present study, we investigated the role osnip3;2 in as(iii) uptake in rice. when expressed in xenopus laevis oocytes, osnip3;2 showed a high transport activity for as(iii). quantitative real-time rt-pcr showed that the expression of osnip ... | 2017 | 28505352 |
| isolation of rice bran lectins and characterization of their unique behavior in caco-2 cells. | rice bran lectins, named as rba1 and rba2, were isolated from oryza sativa in two chromatography steps: affinity chromatography and cation-exchange chromatography. rba1 was found to be composed of a covalently linked heterodimer of 20- and 12-kda subunits, and rba2 was a noncovalently linked dimer of 12-kda subunits. both rba1 and rba2 bound to desialylated complex glycoproteins such as fetuin, α1-acid glycoprotein, and transferrin, and agalactosylated complex glycoproteins such as agalacto fetu ... | 2017 | 28505081 |
| development of a critical nitrogen dilution curve of double cropping rice in south china. | the concept of critical nitrogen (nc) concentration can be implemented to diagnose in-season plant nitrogen (n) status for optimizing n fertilizer management. the nc dilution curves have been established for rice (oryza sativa l.) grown in different climatic regions, yet no attempt has been made to develop the nc dilution curve for double cropping rice regions. this study was undertaken to develop the nc dilution curves for double cropping rice in south china for assessment of in-season n status ... | 2017 | 28503181 |
| effect of limestone, lignite and biochar applied alone and combined on cadmium uptake in wheat and rice under rotation in an effluent irrigated field. | cadmium (cd) uptake and accumulation in crop plants, especially in wheat (triticum aestivum) and rice (oryza sativa) is one of the main concerns for food security worldwide. a field experiment was done to investigate the effects of limestone, lignite, and biochar on growth, physiology and cd uptake in wheat and rice under rotation irrigated with raw effluents. initially, each treatment was applied alone at 0.1% and combined at 0.05% each and wheat was grown in the field and then, after wheat har ... | 2017 | 28501770 |
| influence of sulfur on the accumulation of mercury in rice plant (oryza sativa l.) growing in mercury contaminated soils. | sulfur (s) is an essential element for plant growth and its biogeochemical cycling is strongly linked to the species of heavy metals in soil. in this work, the effects of s (sulfate and elemental sulfur) treatment on the accumulation, distribution and chemical forms of hg in rice growing in hg contaminated soil were investigated. it was found that s could promote the formation of iron plaque on the root surface and decrease total mercury (t-hg) and methylmercury (mehg) accumulation in rice grain ... | 2017 | 28501569 |
| a hairy-leaf gene, blanket leaf, of wild oryza nivara increases photosynthetic water use efficiency in rice. | high water use efficiency is essential to water-saving cropping. morphological traits that affect photosynthetic water use efficiency are not well known. we examined whether leaf hairiness improves photosynthetic water use efficiency in rice. | 2017 | 28500411 |
| quantitative trait loci for large sink capacity enhance rice grain yield under free-air co2 enrichment conditions. | the global atmospheric co2 concentration has been increasing annually. to determine the trait that effectively increases rice (oryza sativa l.) grain yield under increased atmospheric co2 concentrations, as predicted in the near future, we grew a chromosome segment substitution line (cssl) and a near-isogenic line (nil) producing high spikelet numbers per panicle (cssl-gn1 and nil-apo1, respectively) under free-air co2 enrichment (face) conditions and examined the effects of a large sink capacit ... | 2017 | 28500344 |
| dynamic cytology and transcriptional regulation of rice lamina joint development. | rice (oryza sativa) leaf angle is determined by lamina joint and is an important agricultural trait determining leaf erectness and, hence, the photosynthesis efficiency and grain yield. genetic studies reveal a complex regulatory network of lamina joint development; however, the morphological changes, cytological transitions, and underlying transcriptional programming remain to be elucidated. a systemic morphological and cytological study reveals a dynamic developmental process and suggests a co ... | 2017 | 28500269 |
| a rice nac transcription factor promotes leaf senescence via aba biosynthesis. | it is well known that abscisic acid (aba)-induced leaf senescence and premature leaf senescence negatively affect the yield of rice (oryza sativa). however, the molecular mechanism underlying this relationship, especially the upstream transcriptional network that modulates aba level during leaf senescence, remains largely unknown. here, we demonstrate a rice nac transcription factor, osnac2, that participates in aba-induced leaf senescence. overexpression of osnac2 dramatically accelerated leaf ... | 2017 | 28500268 |
| sequencing of bulks of segregants allows dissection of genetic control of amylose content in rice. | amylose content (ac) is a key quality trait in rice. a cross between oryza glaberrima (african rice) and oryza sativa (asian rice) segregating for ac was analysed by sequencing bulks of individuals with high and low ac. snp associated with the granule bound starch synthase (gbss1) locus on chromosome 6 were polymorphic between the bulks. in particular, a g/a snp that would result in an asp to asn mutation was identified. this amino acid substitution may be responsible for differences in gbss act ... | 2018 | 28499072 |
| mutmapplus identified novel mutant alleles of a rice starch branching enzyme iib gene for fine-tuning of cooked rice texture. | physicochemical properties of storage starch largely determine rice grain quality and food characteristics. therefore, modification of starch property is effective to fine-tune cooked rice textures. to obtain new resources with modified starch property as breeding materials, we screened a mutant population of a japonica cultivar nipponbare and found two independent mutant lines, altered gelatinization (age)1 and age2, with moderate changes in starch gelatinization property. a combination of conv ... | 2018 | 28499068 |
| genome-wide identification of histone modifiers and their expression patterns during fruit abscission in litchi. | modifications to histones, including acetylation and methylation processes, play crucial roles in the regulation of gene expression in plant development as well as in stress responses. however, limited information on the enzymes catalyzing histone acetylation and methylation in non-model plants is currently available. in this study, several histone modifier (hm) types, including six histone acetyltransferases (hats), 11 histone deacetylases (hdacs), 48 histone methyltransferases (hmts), and 22 h ... | 2017 | 28496451 |
| rice sucrose partitioning mediated by a putative pectin methyltransferase and homogalacturonan methylesterification. | homogalacturonan (hg) is the main component of pectins. hg methylesterification has recently emerged as a key determinant controlling cell attachment, organ formation, and phyllotaxy. however, whether and how hg methylesterification affects intercellular metabolite transport has rarely been reported. here, we identified and characterized knockout mutants of the rice (oryza sativa) osqua2 gene encoding a putative pectin methyltransferase. osqua2 mutants exhibit a remarkable decrease in the degree ... | 2017 | 28495893 |
| rice black streaked dwarf virus p7-2 forms a scf complex through binding to oryza sativa skp1-like proteins, and interacts with gid2 involved in the gibberellin pathway. | as a core subunit of the scf complex that promotes protein degradation through the 26s proteasome, s-phase kinase-associated protein 1 (skp1) plays important roles in multiple cellular processes in eukaryotes, including gibberellin (ga), jasmonate, ethylene, auxin and light responses. p7-2 encoded by rice black streaked dwarf virus (rbsdv), a devastating viral pathogen that causes severe symptoms in infected plants, interacts with skp1 from different plants. however, whether rbsdv p7-2 forms a s ... | 2017 | 28494021 |
| dissection of broad-spectrum resistance of the thai rice variety jao hom nin conferred by two resistance genes against rice blast. | rice (oryza sativa) is one of the most important food crops in the world. rice blast, caused by the fungal pathogen magnaporthe oryzae, is one of the most destructive rice diseases worldwide. to effectively cope with this problem, the use of rice blast resistance varieties through innovative breeding programs is the best strategy to date. the thai rice variety jao hom nin (jhn) showed broad-spectrum resistance against thai rice blast isolates. two qtls for blast resistance in jhn were reported o ... | 2017 | 28493203 |
| development of a new heat tolerance assay system for rice spikelet sterility. | reduction in rice yield caused by high temperature-induced spikelet sterility has been a serious concern in rice production. to date, several screening methods have been used, although their reproducibility is sometimes poor due to artifacts mainly caused by varietal differences in heading dates and panicle heights (i.e., the distance from the lamps). | 2017 | 28491121 |
| osphyb-mediating novel regulatory pathway for drought tolerance in rice root identified by a global rna-seq transcriptome analysis of rice genes in response to water deficiencies. | water deficiencies are one of the most serious challenges to crop productivity. to improve our understanding of soil moisture stress, we performed rna-seq analysis using roots from 4-week-old rice seedlings grown in soil that had been subjected to drought conditions for 2-3 d. in all, 1,098 genes were up-regulated in response to soil moisture stress for 3 d, which causes severe damage in root development after recovery, unlikely that of 2 d. comparison with previous transcriptome data produced i ... | 2017 | 28491065 |
| genome-wide sequential, evolutionary, organizational and expression analyses of phenylpropanoid biosynthesis associated myb domain transcription factors in arabidopsis. | the myb gene family represents one of the largest groups of transcription factors in plants. recent evidences have also demonstrated key role of myb transcription factors in regulating the expression of major genes involved in the biosynthesis of phenylpropanoid compounds which confer biotic and abiotic stress tolerance in plant species. however, no comprehensive genome-wide analysis of the phenylpropanoid pathway-associated myb transcription factors has been reported thus far. in this study, 11 ... | 2017 | 28490275 |
| oshkt1;5 mediates na+ exclusion in the vasculature to protect leaf blades and reproductive tissues from salt toxicity in rice. | salt tolerance quantitative trait loci analysis of rice has revealed that the skc1 locus, which is involved in a higher k+ /na+ ratio in shoots, corresponds to the oshkt1;5 gene encoding a na+ -selective transporter. however, physiological roles of oshkt1;5 in rice exposed to salt stress remain elusive, and no oshkt1;5 gene disruption mutants have been characterized to date. in this study, we dissected two independent t-dna insertional oshkt1;5 mutants. measurements of ion contents in tissues an ... | 2017 | 28488420 |
| association mapping reveals novel genetic loci contributing to flooding tolerance during germination in indica rice. | rice (oryza sativa l.) is the only cereal crop that possesses the ability to germinate under flooded or other oxygen-deficient conditions. rapid elongation of the coleoptile is a perfect response to flooding during germination, with coleoptile length differing among various rice varieties. despite multiple studies have uncovered valuable information concerning this trait by focusing on the physiological metabolism of oxygen stress, the underlying genetic mechanism still remains unknown. in the p ... | 2017 | 28487722 |
| novel chitinase gene loc_os11g47510 from indica rice tetep provides enhanced resistance against sheath blight pathogen rhizoctonia solani in rice. | sheath blight disease (shb), caused by the fungus rhizoctonia solani kühn, is one of the most destructive diseases of rice (oryza sativa l.), causing substantial yield loss in rice. in the present study, a novel rice chitinase gene, loc_os11g47510 was cloned from qtl region of r. solani tolerant rice line tetep and used for functional validation by genetic transformation of shb susceptible japonica rice line taipei 309 (tp309). the transformants were characterized using molecular and functional ... | 2017 | 28487708 |
| a magnesium transporter osmgt1 plays a critical role in salt tolerance in rice. | salt stress is one of the major factors limiting rice (oryza sativa) production globally. although several transporters involved in salt tolerance have been identified in rice, the mechanisms regulating their transport activity are still poorly understood. here, we show evidence that a rice mg transporter osmgt1 is required for salt tolerance probably by regulating transport activity of oshkt1;5, a key transporter for the removal of na+ from the xylem sap at the root mature zone. knockout of osm ... | 2017 | 28487477 |
| rice homeodomain protein wox11 recruits a histone acetyltransferase complex to establish programs of cell proliferation of crown root meristem. | shoot-borne crown roots are the major root system in cereals. previous work has shown that the wuschel-related homeobox gene wox11 is necessary and sufficient to promote rice (oryza sativa) crown root emergence and elongation. here, we show that wox11 recruits the ada2-gcn5 histone acetyltransferase module to activate downstream target genes in crown root meristem. rice ada2 and gcn5 genes are highly expressed in root meristem and are shown to be essential for cell division and growth. wox11 and ... | 0 | 28487409 |
| 1-n-histidine phosphorylation of chld by the aaa(+) chli2 stimulates magnesium chelatase activity in chlorophyll synthesis. | magnesium chelatase (mg-chelatase) inserts magnesium into protoporphyrin during the biosynthesis of chlorophyll and bacteriochlorophyll. enzyme activity is reconstituted by forming two separate preactivated complexes consisting of a gun4/chlh/protoporphyrin ix substrate complex and a chli/chld enzyme 'motor' complex. formation of the chli/chld complex in both chlamydomonas reinhardtii and oryza sativa is accompanied by phosphorylation of chld by chli, but the orthologous protein complex from rho ... | 2017 | 28487379 |
| ancient plant glyoxylate/succinic semialdehyde reductases: glyr1s are cytosolic, whereas glyr2s are localized to both mitochondria and plastids. | plant nadph-dependent glyoxylate/succinic semialdehyde reductases 1 and 2 (glyr1 and glyr2) are considered to be involved in detoxifying harmful aldehydes, thereby preserving plant health during exposure to various abiotic stresses. phylogenetic analysis revealed that the two glyr isoforms appeared in the plant lineage prior to the divergence of the chlorophyta and streptophyta, which occurred approximately 750 million years ago. green fluorescent protein fusions of apple (malus x domestica bork ... | 2017 | 28484477 |
| processes underlying a reproductive barrier in indica-japonica rice hybrids revealed by transcriptome analysis. | in rice (oryza sativa), hybrids between indica and japonica subspecies are usually highly sterile, which provides a model system for studying postzygotic reproductive isolation. a killer-protector system, s5, composed of three adjacent genes (orf3, orf4, and orf5), regulates female gamete fertility of indica-japonica hybrids. to characterize the processes underlying this system, we performed transcriptomic analyses of pistils from rice variety balilla (bl), balilla with transformed orf5+ (bl5+) ... | 2017 | 28483876 |
| a novel class i chitinase from hippophae rhamnoides: indications for participating in ice-cbf cold stress signaling pathway. | plant chitinases are the members of pr (pathogenesis related) proteins family and protect plants from biotic and abiotic stress. a novel chitinase hrchi1 (accession number jq289153) of 954bp orf encoding 317 amino acids protein was cloned, expressed and characterized from seabuckthorn, a cold/freeze tolerant shrub. the 3d structure (predicted with i-tasser server) showed highest homology with oryza sativa class i chitinase (pdb 2dkva). putative promoter region (obtained by genome walking) showed ... | 2017 | 28483054 |
| the rice tcd11 encoding plastid ribosomal protein s6 is essential for chloroplast development at low temperature. | plastid ribosome proteins (prps) are important components for chloroplast biogenesis and early chloroplast development. although it has been known that chloroplast ribosomes are similar to bacterial ones, the precise molecular function of ribosomal proteins remains to be elucidated in rice. here, we identified a novel rice mutant, designated tcd11 (thermo-sensitive chlorophyll-deficient mutant 11), characterized by the albino phenotype until it died at 20°c, while displaying normal phenotype at ... | 2017 | 28483049 |
| stable mercury isotopes in polished rice (oryza sativa l.) and hair from rice consumers. | mercury (hg) isotopic signatures were characterized in polished rice samples from china, u.s., and indonesia (n = 45). hg isotopes were also analyzed in paired hair samples for participants from china (n = 21). for the latter, we also quantified the proportion of methylmercury intake through rice (range: 31-100%), and the weekly servings of fish meals (range: 0-5.6 servings/weekly). for these participants, 29% (n = 6) never ingested fish, 52% (n = 11) ingested fish < twice/weekly, and 19% (n = 4 ... | 2017 | 28482656 |
| metabolomic analysis of the effects of cadmium and copper treatment in oryza sativa l. using untargeted liquid chromatography coupled to high resolution mass spectrometry and all-ion fragmentation. | while the knowledge of plant metabolomes has increased in the last few years, their response to the presence of toxicants is still poorly understood. here, we analyse the metabolomic changes in japanese rice (oryza sativa var. japonica) upon exposure to heavy metals (cd(ii) and cu(ii)) in concentrations from 10 to 1000 μm. after harvesting, rice metabolites were extracted from aerial parts of the plants and analysed by hplc (hilic tsk gel amide-80 column) coupled to a mass spectrometer quadrupol ... | 2017 | 28480907 |
| effect of microorganisms on reducing cadmium uptake and toxicity in rice (oryza sativa l.). | this study analyzed the application of three microorganism inoculums, including bacillus subtilis, bacillus cereus, and commercial effective microorganism (em) solution in order to determine cadmium (cd) reduction in rice (oryza sativa l.) and rice growth promotion. rice was grown in cd-contaminated soil (120 mg/kg) and selected microorganisms were inoculated. cd concentration and rice weight were measured at 45 and 120 days of the experiment. the result showed that b. subtilis inoculation into ... | 2017 | 28480489 |
| size dependent effects of antifungal phytogenic silver nanoparticles on germination, growth and biochemical parameters of rice (oryza sativa l), maize (zea mays l) and peanut (arachis hypogaea l). | advancement in materials synthesis largely depends up on their diverse applications and commercialisation. antifungal effects of phytogenic silver nanoparticles (agnps) were evident, but the reports on the effects of the same on agricultural crops are scant. herein, we report for the first time, size dependent effects of phytogenic agnps (synthesised using stevia rebaudiana leaf extract) on the germination, growth and biochemical parameters of three important agricultural crops viz., rice (oryza ... | 2017 | 28476985 |
| inhibitory effect of tio2 nps on symbiotic arbuscular mycorrhizal fungi in plant roots. | while nanoparticles (nps) are known to exhibit antimicrobial properties, their effects on symbiotic arbuscular mycorrhizal fungi (amf) in plant roots has to be carefully examined as nps particularly of titanium dioxide (tio2) reach plant roots through varied sources such as fertilisers, plant protection products and other nanoproducts. the objective of the present study is to assess the effect of tio2 nps on the symbiotic behaviour of amf colonising rice (oryza sativa l.) plants. using sol-gel m ... | 2017 | 28476964 |
| salinity affects metabolomic profiles of different trophic levels in a food chain. | salinization is one of the most important abiotic stressors in an ecosystem. to examine how exposing a host plant to excess salt affects the consequent performance and metabolism of insects in a food chain, we determined the life history traits and the metabolite profiles in rice (oryza sativa), the herbivore sitobion avenae, and its predator harmonia axyridis. when compared with performance under normal (non-stressed) conditions, exposing plants to 50mm nacl significantly delayed the timing of ... | 0 | 28475913 |
| l-cysteine desulfhydrase-related h2 s production is involved in osse5-promoted ammonium tolerance in roots of oryza sativa. | previous studies revealed that rice heme oxygenase photoperiod sensitivity 5 (osse5) is involved in the regulation of tolerance to excess ammonium by enhancing antioxidant defence. in this study, the relationship between osse5 and hydrogen sulfide (h2 s), a well-known signalling molecule, was investigated. results showed that nh4 cl triggered the induction of l-cysteine desulfhydrase (l-des)-related h2 s production in rice seedling roots. a h2 s donor not only alleviated the excess ammonium-trig ... | 2017 | 28474399 |
| evaporation kinetics of surfactant solution droplets on rice (oryza sativa) leaves. | the dynamics of evaporating sessile droplets on hydrophilic or hydrophobic surfaces is widely studied, and many models for these processes have been developed based on experimental evidence. however, few research has been explored on the evaporation of sessile droplets of surfactant or pesticide solutions on target crop leaves. thus, in this paper the impact of surfactant concentrations on contact angle, contact diameter, droplet height, and evolution of the droplets' evaporative volume on rice ... | 2017 | 28472108 |
| the first plant acyl-coa-binding protein structures: the close homologues osacbp1 and osacbp2 from rice. | acyl-coa-binding proteins (acbps) are a family of proteins that facilitate the binding of long-chain acyl-coa esters at a conserved acyl-coa-binding domain. acbps act to form intracellular acyl-coa pools, transport acyl-coa esters and regulate lipid metabolism. in the model plant arabidopsis thaliana, a family of six acbps has been demonstrated to function in stress and development. six acbps (osacbps) have also been identified in oryza sativa (rice), but they are not as well characterized as th ... | 2017 | 28471368 |
| suppressive effect of microrna319 expression on rice plant height. | key message: mir319 was identified as a dwarf-inducing gene from shiokari and its dwarf near isogenic line, and its transgenic rice showed a reduced plant height. this finding reveals the potential application of mir319 in future molecular breeding. it is well known that micrornas (mirnas) play important roles in plant physiology, especially in development and stress responses. however, little is known about the role of mirnas in plant height. in this study, the rice cultivar shiokari and its dw ... | 2017 | 28470512 |
| seqping: gene prediction pipeline for plant genomes using self-training gene models and transcriptomic data. | gene prediction is one of the most important steps in the genome annotation process. a large number of software tools and pipelines developed by various computing techniques are available for gene prediction. however, these systems have yet to accurately predict all or even most of the protein-coding regions. furthermore, none of the currently available gene-finders has a universal hidden markov model (hmm) that can perform gene prediction for all organisms equally well in an automatic fashion. | 2017 | 28466793 |
| an osmotin from the resurrection plant tripogon loliiformis (tlosm) confers tolerance to multiple abiotic stresses in transgenic rice. | osmotin is a key protein associated with abiotic and biotic stress response in plants. in this study, an osmotin from the resurrection plant tripogon loliiformis (tlosm) was characterized and functionally analyzed under abiotic stress conditions in t. loliiformis as well as in transgenic nicotiana tabacum (tobacco) and oryza sativa (rice) plants. real-time pcr analysis on mixed elicitor cdna libraries from t. loliiformis showed that tlosm was upregulated a 1000-fold during the early stages of os ... | 2018 | 28466470 |
| ethylene-inhibited jasmonic acid biosynthesis promotes mesocotyl/coleoptile elongation of etiolated rice seedlings. | elongation of the mesocotyl and coleoptile facilitates the emergence of rice (oryza sativa) seedlings from soil and is affected by various genetic and environment factors. the regulatory mechanism underlying this process remains largely unclear. here, we examined the regulation of mesocotyl and coleoptile growth by characterizing a gaoyao1 (gy1) mutant that exhibits a longer mesocotyl and longer coleoptile than its original variety of rice. gy1 was identified through map-based cloning and encode ... | 2017 | 28465411 |
| exogenous application of rutin and gallic acid regulate antioxidants and alleviate reactive oxygen generation in oryza sativa l. | the effect of rutin and gallic acid on growth, phytochemical and defense gene activation of rice (oryza sativa l.) was investigated. the seeds of rice were primed with different concentrations of rutin and gallic acid (10-60 µg ml-1) to explicate the effect on germination on water agar plates. further, to study the effect of most effective concentrations of gallic acid (60 µg ml-1) and rutin (50 µg ml-1), greenhouse pot experiment was set up to determine the changes in growth, antioxidant and de ... | 2017 | 28461719 |
| mechanism study of sulfur fertilization mediating copper translocation and biotransformation in rice (oryza sativa l.) plants. | metabolism of sulfur (s) is suggested to be an important factor for the homeostasis and detoxification of cu in plants. we investigated the effects of s fertilizers (s0, na2so4) on cu translocation and biotransformation in rice plants by using multiple synchrotron-based techniques. fertilization of s increased the biomass and yield of rice plants, as well as the translocation factor of cu from root to shoot and shoot to grain, resulting in enhanced cu in grain. sulfur k-edge x-ray near edge stru ... | 2017 | 28461082 |
| genome-wide analysis of rice dehydrin gene family: its evolutionary conservedness and expression pattern in response to peg induced dehydration stress. | abiotic stresses adversely affect cellular homeostasis, impairing overall growth and development of plants. these initial stress signals activate downstream signalling processes, which, subsequently, activate stress-responsive mechanisms to re-establish homeostasis. dehydrins (dhns) play an important role in combating dehydration stress. rice (oryza sativa l.), which is a paddy crop, is susceptible to drought stress. as drought survival in rice might be viewed as a trait with strong evolutionary ... | 2017 | 28459834 |
| effects of fertilization on crop production and nutrient-supplying capacity under rice-oilseed rape rotation system. | incredible accomplishments have been achieved in agricultural production in china, but many demanding challenges for ensuring food security and environmental sustainability remain. field experiments were conducted from 2011-2013 at three different sites, including honghu, shayang, and jingzhou in china, to determine the effects of fertilization on enhancing crop productivity and indigenous nutrient-supplying capacity (inus) in a rice (oryza sativa l.)-rapeseed (brassica napus l.) rotation. four ... | 2017 | 28455510 |
| uptake and translocation of imidacloprid, thiamethoxam and difenoconazole in rice plants. | uptake and translocation of imidacloprid (imi), thiamethoxam (thx) and difenoconazole (dfz) in rice plants (oryza sativa l.) were investigated with a soil-treated experiment at two application rates: field rate (fr) and 10*fr under laboratory conditions. the dissipation of the three compounds in soil followed the first-order kinetics and dfz showed greater half-lives than imi and thx. detection of the three compounds in rice tissues indicated that rice plants could take up and accumulate these p ... | 2017 | 28454637 |
| nitrogen fertilizer application affects lodging resistance by altering secondary cell wall synthesis in japonica rice (oryza sativa). | stem mechanical strength is an important agricultural quantitative trait that is closely related to lodging resistance in rice, which is known to be reduced by fertilizer with higher levels of nitrogen. to understand the mechanism that regulates stem mechanical strength in response to nitrogen, we analysed stem morphology, anatomy, mechanical properties, cell wall components, and expression of cell wall-related genes, in two varieties of japonica rice, namely, wuyunjing23 (lodging-resistant vari ... | 2017 | 28451936 |