Publications
| Title | Abstract | Year Filter | PMID(sorted ascending) Filter |
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| gene flow from single and stacked herbicide-resistant rice (oryza sativa): modeling occurrence of multiple herbicide-resistant weedy rice. | provisia™ rice (pv), a non-genetically engineered (ge) quizalofop-resistant rice, will provide growers with an additional option for weed management to use in conjunction with clearfield® rice (cl) production. modeling compared the impact of stacking resistance traits versus single traits in rice on introgression of the resistance trait to weedy rice (also called red rice). common weed management practices were applied to 2-, 3- and 4-year crop rotations, and resistant and multiple-resistant wee ... | 2018 | 28834651 |
| whole genome sequencing and comparative transcriptome analysis of a novel seawater adapted, salt-resistant rice cultivar - sea rice 86. | rice (oryza sativa) is critical for human nutrition worldwide. due to a growing population, cultivars that produce high yields in high salinity soil are of major importance. here we describe the discovery and molecular characterization of a novel sea water adapted rice strain, sea rice 86 (sr86). | 2017 | 28835208 |
| polyphasic characterization of bacteria obtained from upland rice cultivated in cerrado soil. | this work aimed to characterize 20 isolates obtained from upland rice plants, based on phenotypic (morphology, enzymatic activity, inorganic phosphate solubilization, carbon source use, antagonism), genotypic assays (16s rrna sequencing) and plant growth promotion. results showed a great morphological, metabolic and genetic variability among bacterial isolates. all isolates showed positive activity for catalase and protease enzymes and, 90% of the isolates showed positive activity for amylase, c ... | 2017 | 28838812 |
| reduced arsenic accumulation in indica rice (oryza sativa l.) cultivar with ferromanganese oxide impregnated biochar composites amendments. | the effects of biochar (bc) and ferromanganese oxide biochar composites (fmbc1 and fmbc2) on as (arsenic) accumulation in rice were determined using a pot experiment. treatments with bc or fmbc improved the dry weights of rice roots, stems, leaves, and grains in soils containing different as contamination levels. compared to bc treatment, fmbc treatments significantly reduced as accumulation in different parts of the rice plants (p < 0.05), and fmbc2 performed better than fmbc1 did. furthermore, ... | 2017 | 28841500 |
| regulatory network and genetic interactions established by osmads34 in rice inflorescence and spikelet morphogenesis. | grasses display highly diversified inflorescence architectures that differ in the arrangement of spikelets and flowers and determine cereal yields. however, the molecular basis underlying grass inflorescence morphogenesis remains largely unknown. here we investigate the role of a functionally diversified sepallata mads-box transcription factor, osmads34, in regulating rice (oryza sativa l.) inflorescence and spikelet development. microarray analysis showed that, at the very early stages of inflo ... | 2017 | 28843032 |
| mitigation of cd accumulation in paddy rice (oryza sativa l.) by fe fertilization. | cadmium uptake in rice is believed to be mediated by the fe transport system. phyto-available cd can be changed by fe fertilization of substrates. this work investigated whether and how fe fertilization affects mitigation of cd accumulation in paddy rice. a 90-d soil column experiment was conducted to study the change of cd and fe availability in soil after fe fertilization (ionic and chelated fe). a low-cd accumulating cultivar (ty116) and a high-cd accumulating cultivar (jy841) were grown in t ... | 2017 | 28843203 |
| genome-wide analysis of duf221 domain-containing gene family in oryza species and identification of its salinity stress-responsive members in rice. | duf221 domain-containing genes (ddp genes) play important roles in developmental biology, hormone signalling transduction, and responses to abiotic stress. therefore to understand their structural and evolutionary relationship, we did a genome-wide analysis of this important gene family in rice. further, through comparative genomics, ddp genes from oryza sativa subsp. (indica), nine different wild species of rice and arabidopsis were also identified. we also found an expansion of the ddp gene fa ... | 2017 | 28846681 |
| regulation of rice root development by a retrotransposon acting as a microrna sponge. | it is well documented that transposable elements (tes) can regulate the expression of neighbouring genes. however, their ability to act in trans and influence ectopic loci has been reported rarely. we searched in rice transcriptomes for tissue-specific expression of tes and found them to be regulated developmentally. they often shared sequence homology with co-expressed genes and contained potential microrna-binding sites, which suggested possible contributions to gene regulation. in fact, we ha ... | 2017 | 28847366 |
| limitation of unloading in the developing grains is a possible cause responsible for low stem non-structural carbohydrate translocation and poor grain yield formation in rice through verification of recombinant inbred lines. | remobilisation of non-structural carbohydrates (nsc) from leaves and stems and unloading into developing grains are essential for yield formation of rice. in present study, three recombinant inbred lines of rice, r91, r156 and r201 have been tested for source-flow-sink related attributes determining the nature of nsc accumulation and translocation at two nitrogen levels in the field. compared to r91 and r156, r201 had lower grain filling percentage, harvest index, and grain yield. meanwhile, r20 ... | 2017 | 28848573 |
| macromolecular traits in the african rice oryza glaberrima and in glaberrima/sativa crosses, and their relevance to processing. | molecular properties of proteins and starch were investigated in 2 accessions of oryza glaberrima and oryza sativa, and in one nerica cross between the 2 species, to assess traits that could be relevant to transformation into specific foods. protein nature and organization in o. glaberrima were different from those in o. sativa and in nerica. despite the similar cysteine content in all samples, thiol accessibility in o. glaberrima proteins was higher than in nerica or in o. sativa. inter-protein ... | 2017 | 28850662 |
| influence of bacterial strains on oryza sativa grown under arsenic tainted soil: accumulation and detoxification response. | the present study was conducted to study the role of bacterial inoculants in growth, accumulation and tolerance responses in rice grown in arsenic (as) contaminated soil. results revealed that out of five isolated bacterial strains, strain bbau/mmm1 (babasaheb bhimrao ambedkar university/mari matamandir) exhibited resistant to as(iii) to the level of 400 μm as(iii) in comparison to other strain which showed toxicity. the isolated strain bbau/mmm1 1was characterized as gram negative, rod shape, s ... | 2017 | 28850869 |
| dissecting combining ability effect in a rice ncii-iii population provides insights into heterosis in indica-japonica cross. | combining ability is a measure for selecting elite parents that make the highest contributions to hybrid performance. however, the genetic bases of combining ability and how they contributed to heterosis is seldomly known. | 2017 | 28853048 |
| large-scale phenomics analysis of a t-dna tagged mutant population. | rice, oryza sativa l., is one of the most important crops in the world. with the rising world population, feeding people in a more sustainable and environmentally friendly way becomes increasingly important. therefore, the rice research community needs to share resources to better understand the functions of rice genes that are the foundation for future agricultural biotechnology development, and one way to achieve this goal is via the extensive study of insertional mutants. we have constructed ... | 2017 | 28854617 |
| plant glyoxylate/succinic semialdehyde reductases: comparative biochemical properties, function during chilling stress, and subcellular localization. | plant nadph-dependent glyoxylate/succinic semialdehyde reductases 1 and 2 (cytosolic glyr1 and plastidial/mitochondrial glyr2) are considered to be of particular importance under abiotic stress conditions. here, the apple (malus × domestica borkh.) and rice (oryza sativa l.) glyr1s and glyr2s were characterized and their kinetic properties were compared to those of previously characterized glyrs from arabidopsis thaliana [l.] heynh. the purified recombinant glyrs had an affinity for glyoxylate a ... | 2017 | 28855911 |
| large-scale deployment of a rice 6 k snp array for genetics and breeding applications. | fixed arrays of single nucleotide polymorphism (snp) markers have advantages over reduced representation sequencing in their ease of data analysis, consistently higher call rates, and rapid turnaround times. a 6 k snp array represents a cost-benefit "sweet spot" for routine genetics and breeding applications in rice. selection of informative snps across species and subpopulations during chip design is essential to obtain useful polymorphism rates for target germplasm groups. this paper summarize ... | 2017 | 28856618 |
| evolutionary modes of emergence of short interspersed nuclear element (sine) families in grasses. | short interspersed nuclear elements (sines) are non-autonomous transposable elements which are propagated by retrotransposition and constitute an inherent part of the genome of most eukaryotic species. knowledge of heterogeneous and highly abundant sines is crucial for de novo (or improvement of) annotation of whole genome sequences. we scanned poaceae genome sequences of six important cereals (oryza sativa, triticum aestivum, hordeum vulgare, panicum virgatum, sorghum bicolor, zea mays) and bra ... | 2017 | 28857316 |
| mapk kinase 10.2 promotes disease resistance and drought tolerance by activating different mapks in rice. | mitogen-activated protein kinase (mapk) cascades, with each cascade consisting of a mapk kinase kinase (mapkkk), a mapk kinase (mapkk), and a mapk, have important roles in different biological processes. however, the signal transduction in rice mapk cascades remains to be elucidated. we show that the structural non-canonical mapkk, mpkk10.2, enhances rice resistance to xanthomonas oryzae pv. oryzicola (xoc), which causes bacterial streak disease, and increases rice tolerance to drought stress by ... | 2017 | 28857351 |
| identification and fine mapping of a new gene, bph31 conferring resistance to brown planthopper biotype 4 of india to improve rice, oryza sativa l. | rice (oryza sativa l.) is the staple food for more than 3.5 billion people, mainly in asia. brown planthopper (bph) is one of the most destructive insect pests of rice that limits rice production. host-plant resistance is one of the most efficient ways to overcome bph damage to the rice crop. | 2017 | 28861736 |
| effects of ethylene and gibberellins on the elongation of rice seedlings (oryza sativa l.). | three-day-old rice seedlings treated with ethylene showed elongation of the 2nd and 3rd leaves. this ethylene-stimulated elongation was not observed in the presence of uniconazole-p or prohexadione, both gibberellin (ga) biosynthesis inhibitors, suggesting that ga was involved in the response. an analysis of endogenous gas by gc-ms revealed that the ga1 level was reduced in the 3rd leaf in response to ethylene. dose-response experiments showed that the responsiveness to ga1 was enhanced by ethyl ... | 1997 | 28862568 |
| effects of modified biochar on rhizosphere microecology of rice (oryza sativa l.) grown in as-contaminated soil. | biochar was carbon-rich and generated by high-temperature pyrolysis of biomass under oxygen-limited conditions. due to the limitations of surface functional groups and the weakness of surface activity in the field of environmental remediation, the raw biochar frequently was chemically modified to improve its properties with a new performance. in this study, a kind of high-efficiency and low-cost amino biochar modified by nano zero-valent iron (abc/nzvi) was synthesized and applied to paddy soil ... | 2017 | 28866780 |
| integrating early transcriptomic responses to rhizotoxins in rice (oryza sativa. l.) reveals key regulators and a potential early biomarker of cadmium toxicity. | as sessile organisms, plants were constantly challenged with biotic and abiotic stresses. transcriptional activation of stress-responsive genes is a crucial part of the plant adaptation to environmental changes. here, early response of rice root to eight rhizotoxic stressors: arsenate, copper, cadmium, mercury, chromate, vanadate, ferulic acid and juglone, was analyzed using published microarray data. there were 539 general stress response (gsr) genes up-regulated under all eight treatments, inc ... | 2017 | 28868059 |
| molecular mapping of qtls associated with lodging resistance in dry direct-seeded rice (oryza sativa l.). | dry direct-seeded rice (dsr) is an alternative crop establishment method with less water and labor requirement through mechanization. it provides better opportunities for a second crop during the cropping season and therefore, a feasible alternative system to transplanted lowland rice. however, lodging is one of the major constraints in attaining high yield in dsr. identification of qtls for lodging resistance and their subsequent use in improving varieties under dsr will be an efficient breedin ... | 2017 | 28871266 |
| a chemical-induced, seed-soaking activation procedure for regulated gene expression in rice. | inducible gene expression has emerged as a powerful tool for plant functional genomics. the estrogen receptor-based, chemical-inducible system xve has been used in many plant species, but the limited systemic movement of inducer β-estradiol in transgenic rice plants has prohibited a wide use of the xve system in this important food crop. here, we constructed an improved chemical-regulated, site-specific recombination system by employing the xve transactivator in combination with a cre/loxp-frt s ... | 2017 | 28871269 |
| the iron-chelate transporter osysl9 plays a role in iron distribution in developing rice grains. | rice osysl9 is a novel transporter for fe(ii)-nicotianamine and fe(iii)-deoxymugineic acid that is responsible for internal iron transport, especially from endosperm to embryo in developing seeds. metal chelators are essential for safe and efficient metal translocation in plants. graminaceous plants utilize specific ferric iron chelators, mugineic acid family phytosiderophores, to take up sparingly soluble iron from the soil. yellow stripe 1-like (ysl) family transporters are responsible for tra ... | 2017 | 28871478 |
| micrornas regulate the main events in rice drought stress response by manipulating the water supply to shoots. | micrornas (mirnas) are small endogenous regulatory rnas that are involved in a variety of biological processes related to proliferation, development, and response to biotic and abiotic stresses. mirna profiles of rice (oryza sativa l. cv. ir64.) leaves in a partial root zone drying (prd) system were analysed using a high-throughput sequencing approach to identify mirnas associated with drought signalling. the treatments performed in this study were as follows: well-watered ("wet" roots, ww), whe ... | 2017 | 28872648 |
| degrading and phytoextracting atrazine residues in rice (oryza sativa) and growth media intensified by a phase ii mechanism modulator. | atrazine (atz) residue in farmland is one of the environmental contaminants seriously affecting crop production and food safety. understanding the regulatory mechanism for atz metabolism and degradation in plants is important to help reduce atz potential toxicity to both plants and human health. here, we report our newly developed engineered rice overexpressing a novel phase ii metabolic enzyme glycosyltransfearse1 (argt1) responsible for transformation of atz residues in rice. our results showe ... | 2017 | 28872855 |
| genome-wide analysis and expression profiling of zinc finger homeodomain (zhd) family genes reveal likely roles in organ development and stress responses in tomato. | zinc finger homeodomain proteins (zhd) constitute a plant-specific transcription factor family with a conserved dna binding homeodomain and a zinc finger motif. members of the zhd protein family play important roles in plant growth, development, and stress responses. genome-wide characterization of zhd genes has been carried out in several model plants, including arabidopsis thaliana and oryza sativa, but not yet in tomato (solanum lycopersicum). | 2017 | 28874115 |
| mutations in the gene of the gα subunit of the heterotrimeric g protein are the cause for the brachytic1 semi-dwarf phenotype in barley and applicable for practical breeding. | short-culm mutants have been widely used in breeding programs to increase lodging resistance. in barley (hordeum vulgare l.), several hundreds of short-culm mutants have been isolated over the years. the objective of the present study was to identify the brachytic1 (brh1) semi-dwarfing gene and to test its effect on yield and malting quality. | 2018 | 28878591 |
| isolation and identification of five cold-inducible promoters from oryza sativa. | five promoters of the cold-inducible rice genes were isolated. the quantitative and qualitative expression analyses in the high generation transgenic rice suggest that the genes are stably induced by low temperature. cold-inducible promoters are highly desirable for stress-inducible gene expression in crop genetic engineering. in this study, five rice genes, including osaba8ox1, osmyb1r35, oserf104, oscyp19-4, and osabcb5, were found to be transcriptionally induced by cold stress. the promoters ... | 2018 | 28879616 |
| malonylome analysis in developing rice (oryza sativa) seeds suggesting that protein lysine malonylation is well-conserved and overlaps with acetylation and succinylation substantially. | in recent years, lysine malonylation has garnered wide spread interest due to its potential regulatory roles. while studies have been performed in bacteria, mouse, and human, the involvement and the biological function of this modification in plant are still largely unknown. we examined the global proteome profile of lysine malonylation in developing rice seeds using affinity enrichment followed by lc-ms/ms analysis. we identified 421 malonylated lysine sites across 247 proteins. functional anal ... | 2018 | 28882676 |
| efficient crispr/cas9-mediated genome editing using a chimeric single-guide rna molecule. | the crispr/cas9 system has been applied in diverse eukaryotic organisms for targeted mutagenesis. however, targeted gene editing is inefficient and requires the simultaneous delivery of a dna template for homology-directed repair (hdr). here, we used crispr/cas9 to generate targeted double-strand breaks and to deliver an rna repair template for hdr in rice (oryza sativa). we used chimeric single-guide rna (cgrna) molecules carrying both sequences for target site specificity (to generate the doub ... | 2017 | 28883826 |
| a rice genetic improvement boom by next generation sequencing. | rice (oryza sativa l.) is a staple food crop for people worldwide, and a key goal has been to increase its grain yield. an increasing population that relies on a decreasing level of farmland has rendered the traditional method for the isolation and use of genetic loci in rice breeding unsatisfactory. recently, the rapid development in next generation sequencing (ngs) has boosted the number of genome sequences for hundreds to thousands of rice varieties. a mutmap strategy and bulk segregation ana ... | 2017 | 28885178 |
| genetic dissection of grain traits in yamadanishiki, an excellent sake-brewing rice cultivar. | the grain traits of yamadanishiki, an excellent sake-brewing rice cultivar in japan, are governed by multiple qtls, namely, a total of 42 qtls including six major qtls. japanese rice wine (sake) is produced using brewing rice (oryza sativa l.) that carries traits desirable for sake-brewing, such as a larger grain size and higher white-core expression rate (wce) compared to cooking rice cultivars. however, the genetic basis for these traits in brewing rice cultivars is still unclear. we performed ... | 2017 | 28887658 |
| mapping and comparative proteomic analysis of the starch biosynthetic pathway in rice by 2d page/ms. | our results not only provide a comprehensive overview of the starch biosynthetic pathway in the developing endosperm but also reveal some important protein markers that regulate the synthesis of starch. in human diets, rice (oryza sativa l.) is an important source of starch, a substantial amount of which is accumulated in developing endosperm. a better understanding of the complicated pathways involved in starch biosynthesis is needed to improve the yield and quality of rice and other cereal cro ... | 2017 | 28887709 |
| improved short-term drought response of transgenic rice over-expressing maize c4 phosphoenolpyruvate carboxylase via calcium signal cascade. | to understand the link between long-term drought tolerance and short-term drought responses in plants, transgenic rice (oryza sativa l.) plants over-expressing the maize c4-pepc gene encoding phosphoenolpyruvate carboxylase (pc) and wild-type (wt) rice plants were subjected to peg 6000 treatments to simulate drought stress. compared with wt, pc had the higher survival rate and net photosynthetic rate after 16days of drought treatment, and had higher relative water content in leaves after 2h of d ... | 2017 | 28888162 |
| contribution of dark septate fungi to the nutrient uptake and growth of rice plants. | the use of dark septate fungi (dse) to promote plant growth can be beneficial to agriculture, and these organisms are important allies in the search for sustainable agriculture practices. this study investigates the contribution of dark septate fungi to the absorption of nutrients by rice plants and their ensuing growth. four dark septate fungi isolates that were identified by internal transcribed spacer phylogeny were inoculated in rice seeds (cv. piauí). the resulting root colonization was est ... | 2018 | 28888828 |
| influence of rapeseed cake on iron plaque formation and cd uptake by rice (oryza sativa l.) seedlings exposed to excess cd. | a soil spiking experiment at two cd levels (0.72 and 5.20 mg kg-1) was conducted to investigate the effects of rapeseed cake (rsc) at application rates of 0%, 0.75%, 1.5%, and 3.0% (w/w) on iron plaque formation and cd uptake by rice (oryza sativa l.) seedlings. the use of rsc did result in a sharp decrease in soil bioavailability of cd and a significant increase in rice growth, soil ph and organic matter. application of rsc increased the amount of iron plaque formation and this effectively inhi ... | 2017 | 28889221 |
| performance of five plant species in removal of nitrogen and phosphorus from an experimental phytoremediation system in the ningxia irrigation area. | agricultural non-point source (anps) pollution is an important contributor to elevated nitrogen (n) and phosphorus (p) in surface waters, which can cause serious environmental problems. considerable effort has therefore gone into the development of methods that control the anps input of n and p to surface waters. phytoremediation has been extensively used because it is cost-effective, environmentally friendly, and efficient. the n and p loads from agricultural drainage are a potential threat to ... | 2017 | 28890992 |
| transcription of mcra gene decreases upon prolonged non-flooding period in a methanogenic archaeal community of a paddy-upland rotational field soil. | methanogenic archaea survive under aerated soil conditions in paddy fields, and their community is stable under these conditions. changes in the abundance and composition of an active community of methanogenic archaea were assessed by analyzing mcra gene (encoding α subunit of methyl-coenzyme m reductase) and transcripts during a prolonged drained period in a paddy-upland rotational field. paddy rice (oryza sativa l.) was planted in the flooded field and rotated with soybean (glycine max [l.] me ... | 2017 | 28890994 |
| comprehensive survey and evolutionary analysis of genome-wide mirna genes from ten diploid oryza species. | micrornas (mirnas) are non-coding rnas that play versatile roles in post-transcriptional gene regulation. although much is known about their biogenesis, and gene regulation very little is known about their evolutionary relation among the closely related species. | 2017 | 28893199 |
| transcription factor oswrky53 positively regulates brassinosteroid signaling and plant architecture. | brassinosteroids (brs) are a class of steroid hormones regulating multiple aspects of plant growth, development, and adaptation. compared with extensive studies in arabidopsis (arabidopsis thaliana), the mechanism of br signaling in rice (oryza sativa) is less understood. here, we identified oswrky53, a transcription factor involved in defense responses, as an important regulator of rice br signaling. phenotypic analyses showed that oswrky53 overexpression led to enlarged leaf angles and increas ... | 2017 | 28894020 |
| soil co2 venting as one of the mechanisms for tolerance of zn deficiency by rice in flooded soils. | we sought to explain rice (oryza sativa) genotype differences in tolerance of zinc (zn) deficiency in flooded paddy soils and the counter-intuitive observation, made in earlier field experiments, that zn uptake per plant increases with increasing planting density. we grew tolerant and intolerant genotypes in a zn-deficient flooded soil at high and low planting densities and found (a) plant zn concentrations and growth increased with planting density and more so in the tolerant genotype, whereas ... | 2017 | 28898428 |
| plant stand p-loop ntpases: a current perspective of genome distribution, evolution, and function : plant stand p-loop ntpases: genomic organization, evolution, and molecular mechanism models contribute broadly to plant pathogen defense. | stand p-loop ntpase is the common weapon used by plant and other organisms from all three kingdoms of life to defend themselves against pathogen invasion. the purpose of this study is to review comprehensively the latest finding of plant stand p-loop ntpase related to their genomic distribution, evolution, and their mechanism of action. earlier, the plant stand p-loop ntpase known to be comprised of only nbs-lrrs/ap-atpase/nb-arc atpase. however, recent finding suggests that genome of early gree ... | 2017 | 28900732 |
| siz1-mediated sumoylation during phosphate homeostasis in plants: looking beyond the tip of the iceberg. | availability of phosphate (pi) is often limited in rhizospheres in different agroclimatic zones and adversely affects growth and development of plants. to circumvent this impasse, there is an urgent need and global consensus to develop pi use efficient crops. to achieve this goal, it is essential to identify the molecular entities that exert regulatory influences on the sensing and signaling cascade governing pi homeostasis. siz1 encodes a small ubiquitin-like modifier (sumo e3) ligase, and play ... | 2017 | 28903074 |
| mir408 regulates grain yield and photosynthesis via a phytocyanin protein. | increasing grain yield is the most important object of crop breeding. here, we report that the elevated expression of a conserved microrna, osmir408, could positively regulate grain yield in rice (oryza sativa) by increasing panicle branches and grain number. we further showed that osmir408 regulates grain yield by down-regulating its downstream target, osucl8, which is an uclacyanin (ucl) gene of the phytocyanin family. the knock down or knock out of osucl8 also increases grain yield, while the ... | 2017 | 28904074 |
| target of rapamycin signaling orchestrates growth-defense trade-offs in plants. | plant defense to microbial pathogens is often accompanied by significant growth inhibition. how plants merge immune system function with normal growth and development is still poorly understood. here, we investigated the role of target of rapamycin (tor), an evolutionary conserved serine/threonine kinase, in the plant defense response. we used rice as a model system and applied a combination of chemical, genetic, genomic and cell-based analyses. we demonstrate that ectopic expression of tor and ... | 2018 | 28905991 |
| complementary rna-sequencing based transcriptomics and itraq proteomics reveal the mechanism of the alleviation of quinclorac stress by salicylic acid in oryza sativa ssp. japonica. | to uncover the alleviation mechanism of quinclorac stress by salicylic acid (sa), leaf samples of oryza sativa ssp. japonica under quinclorac stress with and without sa pre-treatment were analyzed for transcriptional and proteomic profiling to determine the differentially expressed genes (degs) and proteins (deps), respectively. results showed that quinclorac stress altered the expression of 2207 degs (1427 up-regulated, 780 down-regulated) and 147 deps (98 down-regulated, 49 up-regulated). thes ... | 2017 | 28906478 |
| in-silico analysis of cis-acting regulatory elements of pathogenesis-related proteins of arabidopsis thaliana and oryza sativa. | pathogenesis related (pr) proteins are low molecular weight family of proteins induced in plants under various biotic and abiotic stresses. they play an important role in plant-defense mechanism. prs have wide range of functions, acting as hydrolases, peroxidases, chitinases, anti-fungal, protease inhibitors etc. in the present study, an attempt has been made to analyze promoter regions of pr1, pr2, pr5, pr9, pr10 and pr12 of arabidopsis thaliana and oryza sativa. analysis of cis-element distrib ... | 2017 | 28910327 |
| potential of rice stubble as a reservoir of bradyrhizobial inoculum in rice-legume crop rotation. | bradyrhizobium encompasses a variety of bacteria that can live in symbiotic and endophytic associations with leguminous and nonleguminous plants, such as rice. therefore, it can be expected that rice endophytic bradyrhizobia can be applied in the rice-legume crop rotation system. some endophytic bradyrhizobial strains were isolated from rice (oryza sativa l.) tissues. the rice biomass could be enhanced when supplementing bradyrhizobial strain inoculation with kno3, nh4no3, or urea, especially in ... | 2017 | 28916558 |
| cesium uptake by rice roots largely depends upon a single gene, hak1, which encodes a potassium transporter. | incidents at the fukushima and chernobyl nuclear power stations have resulted in widespread environmental contamination by radioactive nuclides. among them, 137cesium has a 30 year half-life, and its persistence in soil raises serious food security issues. it is therefore important to prevent plants, especially crop plants, from absorbing radiocesium. in arabidopsis thaliana, cesium ions are transported into root cells by several different potassium transporters such as high-affinity k+ transpor ... | 2017 | 28922748 |
| rice phytochrome-interacting factor-like1 (ospil1) is involved in the promotion of chlorophyll biosynthesis through feed-forward regulatory loops. | in phototrophic plants, the highly conserved and tightly regulated process of chlorophyll (chl) biosynthesis comprises multi-step reactions involving more than 15 enzymes. since the efficiency of chl biosynthesis strongly affects plant productivity, understanding the underlying regulatory mechanisms in crop plants can be useful for strategies to increase grain and biomass yields. here, we show that rice (oryza sativa) phytochrome-interacting factor-like1 (ospil1), a basic helix-loop-helix transc ... | 2017 | 28922754 |
| crop-model assisted phenomics and genome-wide association study for climate adaptation of indica rice. 2. thermal stress and spikelet sterility. | low night and high day temperatures during sensitive reproductive stages cause spikelet sterility in rice. phenotyping of tolerance traits in the field is difficult because of temporal interactions with phenology and organ temperature differing from ambient. physiological models can be used to separate these effects. a 203-accession indica rice diversity panel was phenotyped for sterility in ten environments in senegal and madagascar and climate data were recorded. here we report on sterility re ... | 2017 | 28922773 |
| crop-model assisted phenomics and genome-wide association study for climate adaptation of indica rice. 1. phenology. | phenology and time of flowering are crucial determinants of rice adaptation to climate variation. a previous study characterized flowering responses of 203 diverse indica rices (the orytage panel) to ten environments in senegal (six sowing dates) and madagascar (two years and two altitudes) under irrigation in the field. this study used the physiological phenology model ridev v2 to heuristically estimate component traits of flowering such as cardinal temperatures (base temperature (tbase) and op ... | 2017 | 28922774 |
| effects of beneficial microorganisms on lowland rice development. | microorganisms can promote plant growth by increasing phytomass production, nutrient uptake, photosynthesis rates, and grain yield, which can result in higher profits for farmers. however, there is limited information available about the physiological characteristics of lowland rice after treatment with beneficial microorganisms in the tropical region. this study aimed to determine the effects of different beneficial microorganisms and various application forms on phytomass production, gas excha ... | 2017 | 28929284 |
| comparative study of the phytoprostane and phytofuran content of indica and japonica rice (oryza sativa l.) flours. | phytoprostanes and phytofurans (phytops and phytofs, respectively) are nonenzymatic lipid peroxidation products derived from α-linolenic acid (c18:3 n-3), considered biomarkers of oxidative degradation in plant foods. the present work profiled these compounds in white and brown grain flours and rice bran from 14 rice cultivars of the subspecies indica and japonica by ultrahigh performance liquid chromatography coupled to electrospray ionization and triple quadrupole mass spectrometry. for phytop ... | 2017 | 28931281 |
| ecophysiological responses to excess iron in lowland and upland rice cultivars. | iron (fe) is an essential nutrient for plants but under high concentrations, such as that found naturally in clay and waterlogged soils, its toxic effect can limit production. this study aimed to investigate the stress tolerance responses exhibited by different rice cultivars. both lowland and upland cultivars were grown under excess fe and hypoxic conditions. lowland cultivars showed higher fe accumulation in roots compared with upland cultivars suggesting the use of different strategies to tol ... | 2017 | 28934652 |
| extracts of black and brown rice powders improve hepatic lipid accumulation via the activation of pparα in obese and diabetic model mice. | rice powder extract (rpe) from black and brown rice (oryza sativa l. indica) improves hepatic lipid accumulation in obese and diabetic model mice via peroxisomal fatty acid oxidation. rpe showed pparα agonistic activity which did not differ between black and brown rpe despite a higher anthocyanin content in black rpe. | 2017 | 28934910 |
| 3d imaging of whole-mount ovules at cellular resolution to study female germline development in rice. | recent advances in fluorescence-based staining of cellular compartments coupled with confocal microscopy imaging have allowed the visualization of three-dimensional (3d) structures with cellular resolution in various intact plant tissues and species. such approaches are of particular interest for the analysis of the reproductive lineage in plants including the meiotic precursor cells deeply embedded within the ovary of the gynoecium enclosed in the flower. yet, their relative inaccessibility and ... | 2017 | 28936647 |
| isolation of rice sperm cells for transcriptional profiling. | the male germline of flowering plants displays unexpectedly divergent transcriptional profiles compared to other cell types and tissues of plants. as these are among the smallest cells, and are harbored within pollen, isolating a pure collection of germline rna presents unusual challenges. the sperm cells of rice represent a particularly challenging subject for study as the pollen are unusually short lived upon release from the anther, and the marker gene sequences that make facs possible in ara ... | 2017 | 28936661 |
| drought stress modulates diurnal oscillations of circadian clock and drought-responsive genes in oryza sativa l. | endogenous circadian rhythms play a key role in regulating plant growth and development, and in allowing plants to respond and adapt to changing environments. to understand how drought regulates upland rice(oryza sativa l.) irat109, we examined the expression levels of circadian clock and drought-responsive genes through real-time pcr. the results revealed that, first, drought reduced the relative expression level and amplitude of peak expression of several morning circadian clock components (su ... | 2017 | 28936981 |
| the f-box protein zygo1 mediates bouquet formation to promote homologous pairing, synapsis, and recombination in rice meiosis. | telomere bouquet formation, a highly conserved meiotic event, plays an important role in homologous pairing and therefore progression of meiosis; however, the underlying molecular mechanism remains largely unknown. here, we identified zygotene1 (zygo1), a novel f-box protein in rice (oryza sativa), and verified its essential role in bouquet formation during early meiosis. in zygo1 mutants, zygotene chromosome aggregation and telomere clustering failed to occur. the suppressed telomere clustering ... | 2017 | 28939596 |
| growth and cd uptake by rice (oryza sativa) in acidic and cd-contaminated paddy soils amended with steel slag. | contamination of rice (oryza sativa) by cd is of great concern. steel slag could be used to amend cd-contaminated soils and make them safe for cereal production. this work was conducted to study the effects of steel slag on cd uptake and growth of rice plants in acidic and cd-contaminated paddy soils and to determine the possible mechanisms behind these effects. pot (rhizobag) experiments were conducted using rice plants grown on two acidic and cd-contaminated paddy soils with or without steel s ... | 2017 | 28942250 |
| root damage under alkaline stress is associated with reactive oxygen species accumulation in rice (oryza sativa l.). | alkaline stress (high ph) severely damages root cells, and consequently, inhibits rice (oryza sativa l.) seedling growth. in this study, we demonstrate the accumulation of reactive oxygen species (ros) in root cells under alkaline stress. seedlings of two rice cultivars with different alkaline tolerances, 'dongdao-4' (moderately alkaline-tolerant) and 'jiudao-51' (alkaline-sensitive), were subjected to alkaline stress simulated by 15 mm sodium carbonate (na2co3). alkaline stress greatly reduced ... | 2017 | 28943882 |
| geographic authentication of asian rice (oryza sativa l.) using multi-elemental and stable isotopic data combined with multivariate analysis. | rice (oryza sativa l.) is the world's third largest food crop after wheat and corn. geographic authentication of rice has recently emerged asan important issue for enhancing human health via food safety and quality assurance. here, we aimed to discriminate rice of six asian countries through geographic authentication using combinations of elemental/isotopic composition analysis and chemometric techniques. principal components analysis could distinguish samples cultivated from most countries, exc ... | 2018 | 28946350 |
| enhancement of gama-aminobutyric acid (gaba) and other health-related metabolites in germinated red rice (oryza sativa l.) by ultrasonication. | red rice (oryza sativa l.) that has a red (reddish brown) bran layer in de-hulled rice is known to contain rich biofunctional components. germination is an effective technique to improve the nutritional quality, digestibility, and flavor of de-hulled rice. ultrasonication, a form of physical stimulation, has been documented as a novel approach to improve the nutritional quality of plant-based food. this study was undertaken to test the use of ultrasound to enhance the nutritional value of red ri ... | 2018 | 28946487 |
| genome-wide analysis and expression profiles of ntmc2 family genes in oryza sativa. | n-terminal-tm-c2 domain proteins (ntmc2), which share domain architecture and sequence similarity to synaptotagmins (syts) in mammals and fam62 (extended syts) in metazoans, form a small gene family in plants. previous studies showed that the arabidopsis thaliana ntmc2 type 1.1 protein (ntmc2t1.1, named atsyt1) possesses calcium- and membrane-binding activities that allow it to function in a plasma membrane repair pathway induced by stress. however, we lack understanding of the diverse biologica ... | 2017 | 28947303 |
| rice protein prolamin promotes anti-leukemia immunity and inhibits leukemia growth in vivo. | prolamin is a heat-stable storage protein of rice (oryza sativa). this study aimed to examine the effect of prolamin on anti-tumor immune response in vitro and leukemia growth in vivo. the prolamin-enriched rice fractions were prepared to stimulate peripheral blood mononuclear cells (mnc) from mice spleen. the mnc-conditioned medium (mnc-cm) was collected to treat leukemia l1210 cells. human mnc-cm was prepared to treat jurkat acute t cell leukemia cells. purified prolamin was orally administere ... | 2017 | 28947358 |
| two complementary mechanisms underpin cell wall patterning during xylem vessel development. | the evolution of the plant vasculature was essential for the emergence of terrestrial life. xylem vessels are solute-transporting elements in the vasculature that possess secondary wall thickenings deposited in intricate patterns. evenly dispersed microtubule (mt) bands support the formation of these wall thickenings, but how the mts direct cell wall synthesis during this process remains largely unknown. cellulose is the major secondary wall constituent and is synthesized by plasma membrane-loca ... | 2017 | 28947492 |
| identification of quantitative trait loci for salinity tolerance in rice (oryza sativa l.) using ir29/hasawi mapping population. | salinity is the second most important abiotic stress after drought that hampers rice production, especially in south and southeast asia. breeding approach supplemented with molecularmarkers-assisted selection is the most promising approach in terms of efficiency to increase the productivity under salt-affected soils. thirty-day-old rice seedlings of 300 f5:6 recombinant-inbred lines derived from a cross between the salt sensitive, ir29 (indica), and a salt tolerant, hasawi (aus), were used to id ... | 2017 | 28947705 |
| ossiz2 exerts regulatory influences on the developmental responses and phosphate homeostasis in rice. | ossiz1, a small ubiquitin-related modifier (sumo) e3 ligase, exerts regulatory influences on the developmental responses and phosphate (pi) homeostasis in rice (oryza sativa). whether paralogs ossiz1 and ossiz2 are functionally redundant or the latter regulates these traits independent of the former is not known. to determine this, in this study, ossiz2 was functionally characterized by employing reverse genetic approaches. although the relative expression of ossiz2 was spatiotemporally regulate ... | 2017 | 28947784 |
| an evolutionary analysis identifies a conserved pentapeptide stretch containing the two essential lysine residues for rice l-myo-inositol 1-phosphate synthase catalytic activity. | a molecular evolutionary analysis of a well conserved protein helps to determine the essential amino acids in the core catalytic region. based on the chemical properties of amino acid residues, phylogenetic analysis of a total of 172 homologous sequences of a highly conserved enzyme, l-myo-inositol 1-phosphate synthase or mips from evolutionarily diverse organisms was performed. this study revealed the presence of six phylogenetically conserved blocks, out of which four embrace the catalytic cor ... | 2017 | 28950028 |
| the ring-type e3 ligase xbat35.2 is involved in cell death induction and pathogen response. | xbat35 belongs to a subfamily of arabidopsis (arabidopsis thaliana) ring-type e3s that are similar in domain architecture to the rice (oryza sativa) xa21 binding protein3, a defense protein. the xbat35 transcript undergoes alternative splicing to produce two protein isoforms, xbat35.1 and xbat35.2. here, we demonstrate that xbat35.2 localizes predominantly to the golgi and is involved in cell death induction and pathogen response. xbat35.2, but not xbat35.1, was found to trigger cell death when ... | 2017 | 28951488 |
| identification and validation of a novel major qtl for harvest index in rice (oryza sativa l.). | harvest index (hi) in rice is defined as the ratio of grain yield (gy) to biomass (bm). although it has been demonstrated that hi is significantly related to yield and is considered as one of the most important traits in high-yielding rice breeding, hi-based high-yielding rice breeding is difficult due to its polygenic nature and insufficient knowledge on the genetic basis of hi. therefore, searching for rice varieties with high hi and mapping genes associated with high hi can facilitate marker- ... | 2017 | 28952045 |
| the phosphoproteomic response of rice seedlings to cadmium stress. | the environmental damage caused by cadmium (cd) pollution is of increasing concern in china. while the overall plant response to cd has been investigated in some depth, the contribution (if any) of protein phosphorylation to the detoxification of cd and the expression of tolerance is uncertain. here, the molecular basis of the plant response has been explored in hydroponically raised rice seedlings exposed to 10 μμ and 100 μμ cd2+ stress. an analysis of the seedlings' quantitative phosphoproteom ... | 2017 | 28953215 |
| molecular characterization of the 14-3-3 gene family in rice and its expression studies under abiotic stress. | 14-3-3 isoforms were relatively less conserved at the c-terminal region across plant groups. both os 14-3-3f and os 14-3-3g were inducible with differential gene expression levels under different abiotic stress and developmental stages in sensitive and tolerant indica rice cultivars as confirmed both at transcript and protein level. plant 14-3-3s has been well characterized to function in several signaling pathways, biotic as well as abiotic stress and nutrient metabolism. we attempted comprehen ... | 2018 | 28956163 |
| nuclear transcriptomes at high resolution using retooled intact. | isolated nuclei provide access to early steps in gene regulation involving chromatin as well as transcript production and processing. here, we describe transfer of the isolation of nuclei from tagged specific cell types (intact) to the monocot rice (oryza sativa l.). the purification of biotinylated nuclei was redesigned by replacing the outer nuclear-envelope-targeting domain of the nuclear tagging fusion (ntf) protein with an outer nuclear-envelope-anchored domain. this modified ntf was combin ... | 2018 | 28956755 |
| identification and quantification of flavonoids in yellow grain mutant of rice (oryza sativa l.). | flavonoids are naturally occurring phenolic compounds with potential health-promoting activities. although anthocyanins and phenolic acids in coloured rice have been investigated, few studies have focused on flavonoids. herein, we analysed flavonoids in a yellow grain rice mutant using uhplc-dad-esi-q-tof-ms, and identified 19 flavonoids by comparing retention times and accurate mass measurements. among them, six flavonoids, isoorientin, isoorientin 2″-o-glucoside, vitexin 2″-o-glucoside, isovit ... | 2018 | 28958514 |
| cld1/srl1 modulates leaf rolling by affecting cell wall formation, epidermis integrity and water homeostasis in rice. | leaf rolling is considered as one of the most important agronomic traits in rice breeding. it has been previously reported that semi-rolled leaf 1 (srl1) modulates leaf rolling by regulating the formation of bulliform cells in rice (oryza sativa); however, the regulatory mechanism underlying srl1 has yet to be further elucidated. here, we report the functional characterization of a novel leaf-rolling mutant, curled leaf and dwarf 1 (cld1), with multiple morphological defects. map-based cloning r ... | 2017 | 28960566 |
| genome-wide analysis of potential cross-reactive endogenous allergens in rice (oryza sativa l.). | the proteins in the food are the source of common allergic components to certain patients. current lists of plant endogenous allergens were based on the medical/clinical reports as well as laboratory results. plant genome sequences made it possible to predict and characterize the genome-wide of putative endogenous allergens in rice (oryza sativa l.). in this work, we identified and characterized 122 candidate rice allergens including the 22 allergens in present databases. conserved domain analys ... | 2015 | 28962466 |
| a database for orphan genes in poaceae. | orphan genes refer to a group of protein-coding genes lacking recognizable homologs in the other organisms. extensive studies have demonstrated that numerous newly sequenced genomes contain a significant number of orphan genes, which have important roles in plant's responses to the environment. due to a lack of phylogenetic conservation, the origin of orphan genes and their functions are currently not well defined. in the present study, a poaceae orphan genes database (pogd; http://bioinfo.ahau. ... | 2017 | 28966675 |
| excessive udpg resulting from the mutation of uap1 causes programmed cell death by triggering reactive oxygen species accumulation and caspase-like activity in rice. | lesion mimic mutants are valuable to unravel the mechanisms governing the programmed cell death (pcd) process. uridine 5'-diphosphoglucose-glucose (udpg) functions as a signaling molecule activating multiple pathways in animals, but little is known about its function in plants. two novel allelic mutants of spl29 with typical pcd characters and reduced pollen viability were obtained by ethane methyl sulfonate mutagenesis in rice cv kitaake. the enzymatic analyses showed that udp-n-acetylglucosami ... | 2018 | 28967675 |
| genome-wide association mapping for root cone angle in rice. | plant root systems play a major role in anchoring and in water and nutrient uptake from the soil. the root cone angle is an important parameter of the root system architecture because, combined with root depth, it helps to determine the volume of soil explored by the plant. two genes, dro1 and sor1, and several qtls for root cone angle have been discovered in the last 5 years. | 2017 | 28971382 |
| expression and rna interference of ribosomal protein l5 gene in nilaparvata lugens (hemiptera: delphacidae). | the ribosomal proteins play important roles in the growth and development of organisms. this study aimed to explore the function of nlrpl5 (genbank kx379234), a ribosomal protein l5 gene, in the brown planthopper nilaparvata lugens. the open reading frame of nlrpl5 was cloned from n. lugens based on a previous transcriptome analysis. the results revealed that the open reading frame of nlrpl5 is of 900 bp, encoding 299 amino acid residues. the reverse transcription quantitative pcr results sugges ... | 2017 | 28973571 |
| iron excess in rice: from phenotypic changes to functional genomics of wrky transcription factors. | iron (fe) is an essential microelement for all living organisms playing important roles in several metabolic reactions. rice (oryza sativa l.) is commonly cultivated in paddy fields, where fe goes through a reduction reaction from fe3+ to fe2+. since fe2+ is more soluble, it can reach toxic levels inside plant cells, constituting an important target for studies. here we aimed to verify morphological changes of different rice genotypes focusing on deciphering the underlying molecular network indu ... | 2017 | 28973723 |
| divergent regeneration-competent cells adopt a common mechanism for callus initiation in angiosperms. | in tissue culture, the formation of callus from detached explants is a key step in plant regeneration; however, the regenerative abilities in different species are variable. while nearly all parts of organs of the dicot arabidopsis thaliana are ready for callus formation, mature regions of organs in monocot rice (oryza sativa) and other cereals are extremely unresponsive to tissue culture. whether there is a common molecular mechanism beyond these different regenerative phenomena is unclear. her ... | 2017 | 28975033 |
| rice stripe virus ns3 protein regulates primary mirna processing through association with the mirna biogenesis factor osdrb1 and facilitates virus infection in rice. | micrornas (mirnas) are small regulatory rnas processed from primary mirna transcripts, and plant mirnas play important roles in plant growth, development, and response to infection by microbes. microbial infections broadly alter mirna biogenesis, but the underlying mechanisms remain poorly understood. in this study, we report that the rice stripe virus (rsv)-encoded nonstructural protein 3 (ns3) interacts with osdrb1, an indispensable component of the rice (oryza sativa) mirna-processing complex ... | 2017 | 28977024 |
| a lysm domain-containing gene osemsa1 involved in embryo sac development in rice (oryza sativa l.). | the embryo sac plays a vital role in sexual reproduction of angiosperms. lysm domain containing proteins with multiple lysin motifs are widespread proteins and are involved in plant defense responses against fungal chitins and bacterial peptidoglycans. various studies have reported the role of lysm domain-containing proteins in plant defense mechanisms but their involvement in sexual reproduction remains largely unknown. here, we report the involvement of a lysm domain-containing gene, embryo sa ... | 2017 | 28979272 |
| cloning and expression of rice glutamate decarboxylase (gad) in escherichia coli. | glutamate decarboxylase (gad) converts l-glutamate to g-aminobutyric acid (gaba), which is a non-protein amino acid present in all organisms with some activities including improvement of neurve and cytoskeltal functions. therefore, gad is considered as a key molecule to use in molecular therapy of genetical human diseases. accordingly, cloning of gads from various plants is an important aim of researchers. the aim of this study was to clone rice (oryza sativa l.) gads in escherichia coli (e.coli ... | 2017 | 28980929 |
| the osabf1 transcription factor improves drought tolerance by activating the transcription of cor413-tm1 in rice. | water deprivation causes substantial losses in crop yields around the world. in this study, we show that when overexpressed in transgenic rice (oryza sativa), the bzip transcription factor osabf1 confers distinctly different drought-tolerance phenotypes when tethered to the transcriptional activator vp16 versus the transcriptional repressor ear. we performed chromatin immunoprecipitation sequencing (chip-seq) and rna sequencing (rna-seq) assays on transgenic rice lines and determined that osabf1 ... | 2017 | 28981779 |
| promoter variants of xa23 alleles affect bacterial blight resistance and evolutionary pattern. | bacterial blight, caused by xanthomonas oryzae pv. oryzae (xoo), is the most important bacterial disease in rice (oryza sativa l.). our previous studies have revealed that the bacterial blight resistance gene xa23 from wild rice o. rufipogon griff. confers the broadest-spectrum resistance against all the naturally occurring xoo races. as a novel executor r gene, xa23 is transcriptionally activated by the bacterial avirulence (avr) protein avrxa23 via binding to a 28-bp dna element (ebeavrxa23) i ... | 2017 | 28982185 |
| draft genome sequence of pseudomonas stutzeri strain kms 55, an endophytic diazotroph isolated from rice roots. | pseudomonas stutzeri strain kms 55 (mtcc 12703) is an isolate from the root tissues of rice (oryza sativa l.) that displays a high biological nitrogen fixation ability. here, we report the complete genome sequence of this strain, which contains 4,637,820 bp, 4,289 protein-coding genes, 5,006 promoter sequences, 62 trnas, a single copy of 5s-16s-23s rrna, and a genome average gc content of 51.18%. analysis of the ~4.64-mb genome sequence will give support to increased understanding of the genetic ... | 2017 | 28982991 |
| the race structure of the rice blast pathogen across southern and northeastern china. | rice blast, caused by the ascomycete magnaporthe oryzae (mo), imposes a major constraint on rice productivity. managing the disease through the deployment of host resistance requires a close understanding of race structure of the pathogen population. | 2017 | 28983868 |
| streptomyces roietensis sp. nov., an endophytic actinobacterium isolated from the surface-sterilized stem of jasmine rice, oryza sativa kdml 105. | an endophytic actinobacterium, strain wes2t, was isolated from the stem of a jasmine rice plant collected from a paddy field in thung gura rong hai, roi et province, thailand. as a result of a polyphasic study, this strain was identified as representing a novel member of the genus streptomyces. this strain was a gram-stain-positive, aerobic actinobacterium with well-developed substrate mycelia and forming chains of looped spores. the closest phylogenetic relations, which shared the highest 16s r ... | 2017 | 28984216 |
| over-expression of oryza sativa xrn4 confers plant resistance to virus infection. | plant xrn4 is a cytoplasmic 5' to 3' exoribonuclease that is reported to play an antiviral role during viral infection as demonstrated by experiments using the xrn4s of nicotiana benthamiana and arabidopsis thaliana. meanwhile, little is known about the anti-viral activity of xrn4 from other plants. here, we cloned the cytoplasmic xrn4 gene of oryza sativa (osxrn4), and demonstrated that its over-expression elevated the 5'-3' exoribonuclease activity in rice plants and conferred resistance to ri ... | 2018 | 28987346 |
| advances in understanding the molecular mechanisms of cytoplasmic male sterility and restoration in rice. | cytoplasmic male sterility (cms) in plants is a male reproductive defect determined by mitochondrial genes and inherited maternally. cms can be suppressed by nuclear restorer of fertility (rf) genes. therefore, cms/rf systems provide a classic model for the study of mitochondrial-nuclear interactions in plants. moreover, cms/rf systems are economical, effective tools for the production of hybrid seeds. for example, cms/rf systems have been applied in over forty countries to breed hybrid rice (or ... | 2017 | 28988325 |
| stomatal conductance, mesophyll conductance, and transpiration efficiency in relation to leaf anatomy in rice and wheat genotypes under drought. | increasing leaf transpiration efficiency (te) may provide leads for growing rice like dryland cereals such as wheat (triticum aestivum). to explore avenues for improving te in rice, variations in stomatal conductance (gs) and mesophyll conductance (gm) and their anatomical determinants were evaluated in two cultivars from each of lowland, aerobic, and upland groups of oryza sativa, one cultivar of o. glaberrima, and two cultivars of t. aestivum, under three water regimes. the te of upland rice, ... | 2017 | 28992130 |
| progress toward rice seed omics in low-level gamma radiation environment in iitate village, fukushima. | here, we present an update on the next level of experiments studying the impact of the gamma radiation environment, created post-march, 2011 nuclear accident at fukushima daiichi nuclear power plant, on rice plant and its next generation - the seed. japonica-type rice (oryza sativa l. cv. koshihikari) plant was exposed to low-level gamma radiation (~4 μsv/h) in the contaminated iitate farm field in iitate village (fukushima). seeds were harvested from these plants at maturity, and serve as the t ... | 2017 | 28992201 |
| delaying chloroplast turnover increases water-deficit stress tolerance through the enhancement of nitrogen assimilation in rice. | abiotic stress-induced senescence in crops is a process particularly affecting the photosynthetic apparatus, decreasing photosynthetic activity and inducing chloroplast degradation. a pathway for stress-induced chloroplast degradation that involves the chloroplast vesiculation (cv) gene was characterized in rice (oryza sativa) plants. oscv expression was up-regulated with the age of the plants and when plants were exposed to water-deficit conditions. the down-regulation of oscv expression contri ... | 2017 | 28992306 |
| evidence for mid-holocene rice domestication in the americas. | the development of agriculture is one of humankind's most pivotal achievements. questions about plant domestication and the origins of agriculture have engaged scholars for well over a century, with implications for understanding its legacy on global subsistence strategies, plant distribution, population health and the global methane budget. rice is one of the most important crops to be domesticated globally, with both asia (oryza sativa l.) and africa (oryza glaberrima steud.) discussed as prim ... | 2017 | 28993622 |
| identification of arbuscular mycorrhiza-inducible nitrate transporter 1/peptide transporter family (npf) genes in rice. | arbuscular mycorrhizal fungi (amf) colonize up to 90% of all land plants and facilitate the acquisition of mineral nutrients by their hosts. inorganic orthophosphate (pi) and nitrogen (n) are the major nutrients transferred from the fungi to plants. while plant pi transporters involved in nutrient transfer at the plant-fungal interface have been well studied, the plant n transporters participating in this process are largely unknown except for some ammonium transporters (amt) specifically assign ... | 2018 | 28993893 |