Publications
| Title | Abstract | Year Filter | PMID(sorted descending) Filter |
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| toxic effects of perfluorooctane sulfonate (pfos) on wheat (triticum aestivum l.) plant. | toxic effects of different concentrations (0.1-200mgl(-1)) of perfluorooctane sulfonate (pfos) on wheat (triticumaestivum l.) were investigated using the growing and developmental indexes of wheat, including length and biomass of roots and leaves, chlorophyll, soluble protein, peroxidase (pod), superoxide dismutase (sod) in the seedlings and permeability of root cells. the results showed that pfos had significant (p<0.05) effects on the growth of wheat seedlings under the experimental conditions ... | 2010 | 20193959 |
| ecotoxicological risk assessment of undisturbed metal contaminated soil at two remote lighthouse sites. | ecotoxicological risk assessments of contaminated soil are commonly completed using guideline values based on total concentrations. however, only certain fractions of contaminants are bioavailable and pose a hazard to the environment. this paper investigates the relationship between measured metal concentrations in soil and soil leachate, and the effects in organisms exposed to intact, undisturbed soil cores (wheat, tricum aestivum) and soil leachate (lettuce, lactuca sativa, and water flea, dap ... | 2010 | 20189647 |
| kinetics and substrate selectivity of a triticum aestivum xylanase inhibitor (taxi) resistant d11f/r122d variant of bacillus subtilis xyna xylanase. | this study examined the kinetics and substrate selectivity of a gh11 bacillus subtilis xyna xylanase (bsx) sensitive to inhibition by taxi and an engineered variant, which is much less inhibited by taxi (bsx(mut)). the main purpose of the work was to elucidate any influence of the structural point mutations on the kinetics and substrate selectivity of the enzyme. three-dimensional structures of both xylanases were superimposed to elucidate the structural basis for differences in their hydrolytic ... | 2010 | 20188130 |
| application of hansch's model to capsaicinoids and capsinoids: a study using the quantitative structure-activity relationship. a novel method for the synthesis of capsinoids. | we describe a synthetic approach for two families of compounds, the capsaicinoids and capsinoids, as part of a study of the quantitative relationship between structure and activity. a total of 14 capsaicinoids of increasing lateral chain lengths, from 2 to 16 carbon atoms, were synthesized. in addition, 14 capsinoids with identical lateral chains, as well as capsiate and dihydrocapsiate, have been synthesized, and a new method for the synthesis of these compounds has been developed. the yields r ... | 2010 | 20178388 |
| elevated atmospheric carbon dioxide effects on soybean and sorghum gas exchange in conventional and no-tillage systems. | increasing atmospheric co(2) concentration has led to concerns about potential effects on production agriculture. in the fall of 1997, a study was initiated to compare the response of two crop management systems (conventional tillage and no-tillage) to elevated co(2). the study used a split-plot design replicated three times with two management systems as main plots and two atmospheric co(2) levels (ambient and twice ambient) as split plots using open-top chambers on a decatur silt loam soil (cl ... | 2013 | 20176833 |
| [inheritance analysis of resistant starch content in kernels of wheat]. | in this study, three wheat (triticum aestivum l.) cultivars with high and low levels of resistant starch contents each were selected to obtain 15 f1 combinations from a diallel cross without reciprocals to be used to study the inheritance of resistant starch content. the results of this study are useful to select new wheat cultivar with high level of resistant starch content. annong 90202 and d68-20 were the best among the wheat cultivars tested for general combining ability of resistant starch ... | 2010 | 20176562 |
| feasibility of physical map construction from fingerprinted bacterial artificial chromosome libraries of polyploid plant species. | the presence of closely related genomes in polyploid species makes the assembly of total genomic sequence from shotgun sequence reads produced by the current sequencing platforms exceedingly difficult, if not impossible. genomes of polyploid species could be sequenced following the ordered-clone sequencing approach employing contigs of bacterial artificial chromosome (bac) clones and bac-based physical maps. although bac contigs can currently be constructed for virtually any diploid organism wit ... | 2010 | 20170511 |
| structural investigations on arabinogalactan-protein from wheat, isolated with yariv reagent. | for the first time a pure arabinogalactan-protein (agp) could be isolated from whole grain of wheat ( triticum aestivum l.) by performing a double precipitation with beta-glucosyl yariv reagent. the putative bioactive agp has been characterized with regard to its polysaccharide and protein parts. analytical investigations by glc-ms and (13)c nmr revealed a carbohydrate moiety consisting of a 1,3-galp backbone, linked in position 6 to short 1,6-galp-chains, terminating in araf. in the protein par ... | 2010 | 20163180 |
| secondary metabolites produced by a root-inhabiting sterile fungus antagonistic towards pathogenic fungi. | a sterile red fungus (srf) isolated from cortices of roots of both wheat (triticum aestivum cv. gamenya) and ryegrass (lolium rigidum cv. wimmera) was found to protect the hosts from phytopathogens and promote plant growth. in this work, the major secondary metabolites produced by this srf were analysed, and their antibiotic and plant-growth-promoting activities investigated. | 2010 | 20156309 |
| population structure of wild wheat d-genome progenitor aegilops tauschii coss.: implications for intraspecific lineage diversification and evolution of common wheat. | aegilops tauschii coss. is the d-genome progenitor of hexaploid wheat. aegilops tauschii, a wild diploid species, has a wide natural species range in central eurasia, spreading from turkey to western china. amplified fragment length polymorphism (aflp) analysis using a total of 122 accessions of ae. tauschii was conducted to clarify the population structure of this widespread wild wheat species. phylogenetic and principal component analyses revealed two major lineages in ae. tauschii. bayesian p ... | 2010 | 20149088 |
| evolution of flowering time in experimental wheat populations: a comprehensive approach to detect genetic signatures of natural selection. | in annual plant species, flowering time is a major adaptive trait that synchronizes the initiation of reproduction with favorable environmental conditions. here, we aimed at studying the evolution of flowering time in three experimental populations of bread wheat, grown in contrasting environments (northern to southern france) for 12 generations. by comparing the distribution of phenotypic and presumably neutral variation, we first showed that flowering time responded to selection during the 12 ... | 2010 | 20148950 |
| characterization and comparative analysis of wheat high molecular weight glutenin subunits by sds-page, rp-hplc, hpce, and maldi-tof-ms. | high molecular weight glutenin subunits (hmw-gs) from 60 germplasms including 30 common wheat cultivars and 30 related species were separated and characterized by a suite of separation methods including sodium dodecyl sulfate-polyacrylamide gel electrophoresis (sds-page), reversed-phase high-performance liquid chromatography (rp-hplc), high-performance capillary electrophoresis (hpce), and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (maldi-tof-ms). comparative an ... | 2010 | 20146422 |
| molecular characterization of novel low-molecular-weight glutenin genes in aegilops longissima. | extensive genetic variations of low-molecular-weight glutenin subunits (lmw-gs) and their coding genes were found in the wild diploid a- and d-genome donors of common wheat. in this study, we reported the isolation and characterization of 8 novel lmw-gs genes from ae.longissima schweinf. & muschl., a species of the section sitopsis of the genus aegilops, which is closely related to the b genome of common wheat. based on the n-terminal domain sequences, the 8 genes were divided into 3 groups. a c ... | 2010 | 20145295 |
| marker-assisted characterization of durum wheat langdon-golden ball disomic substitution lines. | the durum wheat cultivar 'golden ball' (gb) is a source of resistance to wheat sawfly due to its superior solid stem. in the late 1980s, dr. leonard joppa developed a complete set of 14 'langdon' (ldn)-gb disomic substitution (ds) lines by using gb as the chromosome donor and ldn as the recipient. however, these substitution lines have not been previously characterized and reported in the literature. the objectives of this study were to confirm the authenticity of the substituted chromosomes and ... | 2010 | 20140662 |
| multiplex real-time rt-pcr for detection of wheat streak mosaic virus and triticum mosaic virus. | wheat streak mosaic virus (wsmv) and triticum mosaic virus (trimv) are widespread throughout the southwestern great plains states. when using conventional diagnostics such as enzyme-linked immunosorbent assays (elisa), these two viruses are commonly found together in infected wheat samples. methods for molecular detection have been developed for wheat viral pathogens, but until recently no multiplex method for detection of both wsmv and trimv within a single sample was available. therefore, the ... | 2010 | 20138086 |
| gst profile expression study in some selected plants: in silico approach. | glutathione acts as a protein disulphide reductant, which detoxifies herbicides by conjugation, either spontaneously or by the activity of one of a number of glutathione-s-transferases (gsts), and regulates gene expression in response to environmental stress and pathogen attack. gsts play roles in both normal cellular metabolisms as well as in the detoxification of a wide variety of xenobiotic compounds, and they have been intensively studied with regard to herbicide detoxification in plants. a ... | 2010 | 20135200 |
| noninvasive diagnosis of seed viability using infrared thermography. | recent advances in the noninvasive analyses of plant metabolism include stress imaging techniques, mainly developed for vegetative tissues. we explored if infrared thermography can be used to predict whether a quiescent seed will germinate or die upon water uptake. thermal profiles of viable, aged, and dead pisum sativum seeds were recorded, and image analysis of 22,000 images per individual seed showed that infrared thermography can detect imbibition- and germination-associated biophysical and ... | 2010 | 20133712 |
| effects of water deficit and spraying of dessicant on yield, yield components and water use efficiency of wheat genotypes. | to evaluate yield, yield components and water use efficiency of bread wheat in water stress conditions and spraying of dessicant, a field experiment was carried out in 2006-2007 and 2007-2008. main plots were assigned to two levels of water stress treatments; d1: optimum irrigation and d2: cessation of watering from anthesis to maturity stages. sub plots were assigned to eight bread wheat genotypes; and assimilates limitations with two levels: p1: no source limitation and p2: inhibition of curre ... | 2009 | 20128510 |
| molecular characterization of the sasanda ltr copia retrotransposon family uncovers their recent amplification in triticum aestivum (l.) genome. | retrotransposons constitute a major proportion of the triticeae genomes. genome-scale studies have revealed their role in evolution affecting both genome structure and function and their potential for the development of novel markers. in this study, family members of an ltr copia retrotransposon which mediated the duplication of the gene encoding the high molecular weight glutenin subunit bx7 in cultivar glenlea were characterized. this novel element was named sasanda_eu157184-1 (trep3516). high ... | 2010 | 20127492 |
| antioxidative efficiency of triticum aestivum l. exposed to chromium stress. | wheat (triticum aestivum l. cv sonalika) seedlings were grown in presence of k2cr2o7 (10, 50 and 100 ppm) for 7 days and growth, total chlorophyll, activities of antioxidative enzymes like superoxide dismutase (sod; ec 1.15.1.1), catalase (cat; ec 1.11.1.6) and guaiacol peroxidase (pox; ec 1.11.1.7) and lipid peroxidation were determined in root and shoot tissues. growth of the seedlings was significantly (p < or = 0.05) depressed and at 100 ppm, root length was reduced by 63% and shoot length b ... | 2009 | 20120493 |
| effect of copper on growth, yield and concentration of fe, mn, zn and cu in wheat plants (triticum aestivum l.). | a pot experiment was conducted at six graded levels of copper (cu) viz., 0, 0.5, 1.0, 1.5, 2.0 and 2.5 mg kg(-1) to test the response of wheat plants grown in a copper-responsive alluvial soil (entisol) under glass house conditions. the growth attributes like plant height, fresh and dry matter yield, percent dry matter enhanced with increasing cu levels and was maximum at 1.5 mg kg(-1) cu while the number of tillers was minimum at this level. the grain yield at 1.5 mg kg(-1) cu was enhanced by 6 ... | 2009 | 20120484 |
| [molecular and biochemical analysis of two genes encoding dehydroascorbate reductase in common wheat]. | dehydroascorbate reductase (dhar) plays an important role in the recycling of ascorbic acid. in this work, we isolated the full length cdna clones of two different dhar genes (tentatively named as tadhar1 and tadhar2, respectively) from common wheat. semi-quantitative pcr experiments showed that tadhar1 and tadhar2 were transcribed in many vegetative and reproductive organs examined in this work. transient expression analysis using wheat protoplasts indicated that the protein products of tadhar1 ... | 2009 | 20112692 |
| tanf-yc11, one of the light-upregulated nf-yc members in triticum aestivum, is co-regulated with photosynthesis-related genes. | nuclear factor y (nf-y) is a heterotrimeric transcription factor complex. each of the nf-y subunits (nf-ya, nf-yb and nf-yc) in plants is encoded by multiple genes. quantitative rt-pcr analysis revealed that five wheat nf-yc members (tanf-yc5, 8, 9, 11 and 12) were upregulated by light in both the leaf and seedling shoot. co-expression analysis of affymetrix wheat genome array datasets revealed that transcript levels of a large number of genes were consistently correlated with those of the tanf- ... | 2010 | 20111976 |
| generation of transgenic wheat (triticum aestivum l.) accumulating heterologous endo-xylanase or ferulic acid esterase in the endosperm. | endo-xylanase (from bacillus subtilis) or ferulic acid esterase (from aspergillus niger) were expressed in wheat under the control of the endosperm-specific 1dx5 glutenin promoter. constructs both with and without the endoplasmic reticulum retention signal (lys-asp-glu-leu) kdel were used. transgenic plants were recovered in all four cases but no qualitative differences could be observed whether kdel was added or not. endo-xylanase activity in transgenic grains was increased between two and thre ... | 2010 | 20102532 |
| changes in selenium speciation associated with increasing tissue concentrations of selenium in wheat grain. | wheat (triticum aestivum) collected in the nawanshahr-hoshiarpur region (punjab, india) showed the highest selenium concentrations ever recorded in cereal grains (29-185 microg g(-1)). there was a strong positive relationship between the selenium content in shoots and that in kernels, showing that grain selenium concentration can be predicted from that in the vegetative tissues of the plant. the identity and content of the selenocompounds in the grain samples and in wheat-based reference materia ... | 2010 | 20102199 |
| down-regulation of the cslf6 gene results in decreased (1,3;1,4)-beta-d-glucan in endosperm of wheat. | (1,3;1,4)-beta-d-glucan (beta-glucan) accounts for 20% of the total cell walls in the starchy endosperm of wheat (triticum aestivum) and is an important source of dietary fiber for human nutrition with potential health benefits. bioinformatic and array analyses of gene expression profiles in developing caryopses identified the cellulose synthase-like f6 (cslf6) gene as encoding a putative beta-glucan synthase. rna interference constructs were therefore designed to down-regulate cslf6 gene expres ... | 2010 | 20089768 |
| [isolation and characterization of an abc-transporter cdna clone from wheat (triticum aestivum l.)]. | the outmost layer of the surface of any land plant is covered with wax, which protects the inner tissues of plants. the arabidopsis atp binding cassette (abc) transporter, cer5, was found to be an exporter of wax molecules. full-length wheat tacer5 cdna, a sequence homologous to cer5, was isolated. similar to other transporters of the abcg subfamily, tacer5 also has a typical basic structure of nbd-msd (nucleotide-binding folds domain - membrane-spanning domain). although the identity scores of ... | 2017 | 20088377 |
| genetic diversity among old portuguese bread wheat cultivars and botanical varieties evaluated by its rdna pcr-rflp markers. | 2009 | 20086307 | |
| allelic variations of functional markers for polyphenol oxidase (ppo) genes in indian bread wheat (triticum aestivum l.) cultivars. | 2009 | 20086299 | |
| a complete mitochondrial genome of wheat (triticum aestivum cv. chinese yumai), and fast evolving mitochondrial genes in higher plants. | plant mitochondrial genomes, encoding necessary proteins involved in the system of energy production, play an important role in the development and reproduction of the plant. they occupy a specific evolutionary pattern relative to their nuclear counterparts. here, we determined the winter wheat (triticum aestivum cv. chinese yumai) mitochondrial genome in a length of 452 and 526 bp by shotgun sequencing its bac library. it contains 202 genes, including 35 known protein-coding genes, three rrna a ... | 2009 | 20086295 |
| heterologous expression of wheat vernalization 2 (tavrn2) gene in arabidopsis delays flowering and enhances freezing tolerance. | the vernalization gene 2 (vrn2), is a major flowering repressor in temperate cereals that is regulated by low temperature and photoperiod. here we show that the gene from triticum aestivum (tavrn2) is also regulated by salt, heat shock, dehydration, wounding and abscissic acid. promoter analysis indicates that tavrn2 regulatory region possesses all the specific responsive elements to these stresses. this suggests pleiotropic effects of tavrn2 in wheat development and adaptability to the environm ... | 0 | 20084169 |
| expansins expression is associated with grain size dynamics in wheat (triticum aestivum l.). | grain weight is one of the most important components of cereal yield and quality. a clearer understanding of the physiological and molecular determinants of this complex trait would provide an insight into the potential benefits for plant breeding. in the present study, the dynamics of dry matter accumulation, water uptake, and grain size in parallel with the expression of expansins during grain growth in wheat were analysed. the stabilized water content of grains showed a strong association wit ... | 2010 | 20080826 |
| evaluation of alternative planting strategies to reduce wheat stem sawfly (hymenoptera: cephidae) damage to spring wheat in the northern great plains. | wheat, triticum aestivum l., producers are often reluctant to use solid-stemmed wheat cultivars resistant to wheat stem sawfly, cephus cinctus norton (hymenoptera: cephidae), due to concerns regarding yield, efficacy or market opportunities. we evaluated the impact of several planting strategies on wheat yield and quality and wheat stem sawfly infestation at two locations over a three-year period. experimental units consisted of large plots (50 by 200 m) located on commercial farms adjacent to w ... | 2009 | 20069842 |
| wireworm management i: stand protection versus wireworm mortality with wheat seed treatments. | the efficacy of various insecticidal seed treatments in protecting wheat, triticum aestivum l., from wireworm damage as well as reducing wireworm (coleoptera: elateridae) populations was studied over 3 yr. protection from wireworm damage was measured by postplanting stand counts, and effects on wireworm populations were measured by within-row core samples and by bait traps placed in plots the following spring. the effects of treatments on populations of larger wireworms already present at planti ... | 2009 | 20069841 |
| strategic distribution of protective proteins within bran layers of wheat protects the nutrient-rich endosperm. | bran from bread wheat (triticum aestivum 'babbler') grain is composed of many outer layers of dead maternal tissues that overlie living aleurone cells. the dead cell layers function as a barrier resistant to degradation, whereas the aleurone layer is involved in mobilizing organic substrates in the endosperm during germination. we microdissected three defined bran fractions, outer layers (epidermis and hypodermis), intermediate fraction (cross cells, tube cells, testa, and nucellar tissue), and ... | 2010 | 20061449 |
| bioassay and use in irrigation of untreated and treated wastewaters from phosphate fertilizer industry. | wastewater from phosphate fertilizer industry that contains essentially a significant amount of both fluoride and phosphate was treated by separative precipitation of fluoride ions with hydrated lime. thus, a phosphate-rich effluent with low content of fluoride was obtained. the microtoxicity of the treated wastewater was then monitored by lumistox and its phytotoxicity was investigated on tomato (lycopersicon esculentum), wheat (triticum aestivum), maize (zea mays), ryegrass (lolium perenne), a ... | 2010 | 20061024 |
| interactive intoxicating and ameliorating effects of tannic acid, aluminum (al), copper (cu), and selenate (seo) in wheat roots: a descriptive and mathematical assessment. | tannic acids and tannins are produced by plants and are important components of soil and water organic matter. these polyphenolic compounds form complexes with proteins, metals and soil particulate matter and perform several physiological and ecological functions. the tannic acid (ta) used in our study was a mixture of gallic acid and galloyl glucoses ranging up to nonagalloyl glucose. ta inhibited root elongation in wheat seedlings (triticum aestivum l. cv. scout 66) at concentrations >4 mg l(- ... | 2010 | 20059738 |
| [genetic differentiation of hexaploid wheat inferred from analysis of microsatellite loci]. | landraces of wheat can serve as important potential sources for extending the genetic basis of selection cultivars. analysis of microsatellites and typing of polymorphism in a representative sample of 347 genotypes, including landraces and selection cultivars, was performed using a set of 38 selected oligonucleotide primer pairs. classification of genotypes with respect to the level of their similarity was performed using cluster analysis. the data obtained pointed to genetic differentiation of ... | 2009 | 20058799 |
| effect of dissolved organic matter on the toxicity of chlorotoluron to triticum aestivum. | response of two wheat cultivars (triticum aestivum cv. ym 158 and nm 9) to the herbicide chlorotoluron and the effect of two forms of dissolved organic matter on the chlorotoluron toxicity to the plants were characterized. treatment with chlorotoluron at 10-50 microg/ml inhibited the seed germination and a dose-response was observed. the inhibition of seed germination was correlated to the depression of alpha-amylase activities. to identify whether chlorotoluron induced oxidative damage to wheat ... | 2006 | 20050556 |
| gene action of canopy temperature in bread wheat under diverse environments. | while canopy temperature (ct) shows a strong and reliable association with yield under drought and heat stress and is used in wheat breeding to select for yield, little is known of its genetic control. the objective of this study was to determine the gene action controlling ct in five wheat populations grown in diverse environments (heat, drought, and well-irrigated conditions). ct showed negative phenotypic correlations with grain yield under drought and well-irrigated environments. additive x ... | 2010 | 20044743 |
| effect of fresh triticum aestivum grass juice on lipid profile of normal rats. | to study the hypolipidemic activity of fresh grass juice of triticum aestivum in normal rats. | 2008 | 20040964 |
| under what circumstances can process-based simulation models link genotype to phenotype for complex traits? case-study of fruit and grain quality traits. | detailed information has arisen from research at gene and cell levels, but it is still incomplete in the context of a quantitative understanding of whole plant physiology. because of their integrative nature, process-based simulation models can help to bridge the gap between genotype and phenotype and assist in deconvoluting genotype-by-environment (gxe) interactions for complex traits. indeed, gxe interactions are emergent properties of simulation models, i.e. unexpected properties generated by ... | 2010 | 20038518 |
| rumen bacterial diversity dynamics associated with changing from bermudagrass hay to grazed winter wheat diets. | rumen bacterial communities in forage-fed and grazing cattle continually adapt to a wide range of changing dietary composition, nutrient density, and environmental conditions. we hypothesized that very distinct community assemblages would develop between the fiber and liquid fractions of rumen contents in animals transitioned from bermudagrass hay diet to a grazed wheat diet. to address this hypothesis, we designed an experiment utilizing a 16s-based btefap pyrosequencing technique to characteri ... | 2010 | 20037795 |
| post-translational processing of beta-d-xylanases and changes in extractability of arabinoxylans during wheat germination. | endo-1,4-beta-d-xylanase (ec 3.2.1.8, beta-d-xylanase) activity, and arabinoxylan (ax) level and extractability were monitored for the first time simultaneously in wheat kernels (triticum aestivum cv. glasgow) up to 24 days post-imbibition (dpi), both in the absence and presence of added gibberellic acid (ga). roughly three different stages (early, intermediate and late) can be discriminated. addition of ga resulted in a faster increase of water extractable arabinoxylan (weax) level in the early ... | 2016 | 20031435 |
| [effects of water stress on protein expression and physiological properties of different genotype wheat (triticum aestivum l.) sprouts]. | with drought-resistant wheat (triticum aestivum) cultivar changwu 134 and drought-sensitive cultivar zhengyin 1 as test materials, and by using -1.2 mpa peg 6000 to treat their seeds, this paper studied the protein expression and physiological properties of the sprouts under different soil moisture conditions. sds-page analysis showed that water stress induced the production of two new proteins with molecular weights of 39.5 kda and 23.0 kda in changwu 134 but not in zhengyin 1 sprouts. under no ... | 2009 | 20030136 |
| orthologs of the class a4 heat shock transcription factor hsfa4a confer cadmium tolerance in wheat and rice. | cadmium (cd) is a widespread soil pollutant; thus, the underlying molecular controls of plant cd tolerance are of substantial interest. a screen for wheat (triticum aestivum) genes that confer cd tolerance to a cd hypersensitive yeast strain identified heat shock transcription factor a4a (hsfa4a). ta hsfa4a is most similar to the class a4 hsfs from monocots. the most closely related rice (oryza sativa) homolog, os hsfa4a, conferred cd tolerance in yeast, as did ta hsfa4a, but the second most clo ... | 2009 | 20028842 |
| the efficacy of ultramolecular aqueous dilutions on a wheat germination model as a function of heat and aging-time. | this study evaluates the effects of temperature and aging on the efficacy of as(2)o(3) at the 45th decimal potency in a wheat germination model, compared against a control and potentized h(2)o 45×. each treatment-temperature combination was tested on seeds (triticum aestivum l.) of pandas variety, using six petri dishes (33 seeds/dish) per trial, performing eight trials. seeds were pre-treated by poisoning with 0.1% as(2)o(3) solution to reduce germination, to allow a better evaluation of homeop ... | 2011 | 20028717 |
| generation and analysis of expression sequence tags from haustoria of the wheat stripe rust fungus puccinia striiformis f. sp. tritici. | stripe rust, caused by puccinia striiformis f. sp. tritici (pst), is one of the most destructive diseases of wheat (triticum aestivum l.) worldwide. in spite of its agricultural importance, the genomics and genetics of the pathogen are poorly characterized. pst transcripts from urediniospores and germinated urediniospores have been examined previously, but little is known about genes expressed during host infection. some genes involved in virulence in other rust fungi have been found to be speci ... | 2009 | 20028560 |
| tasnrk2.4, an snf1-type serine/threonine protein kinase of wheat (triticum aestivum l.), confers enhanced multistress tolerance in arabidopsis. | osmotic stresses such as drought, salinity, and cold are major environmental factors that limit agricultural productivity worldwide. protein phosphorylation/dephosphorylation are major signalling events induced by osmotic stress in higher plants. sucrose non-fermenting 1-related protein kinase2 family members play essential roles in response to hyperosmotic stresses in arabidopsis, rice, and maize. in this study, the function of tasnrk2.4 in drought, salt, and freezing stresses in arabidopsis wa ... | 2010 | 20022921 |
| increasing sucrose uptake capacity of wheat grains stimulates storage protein synthesis. | increasing grain sink strength by improving assimilate uptake capacity could be a promising approach toward getting higher yield. the barley (hordeum vulgare) sucrose transporter hvsut1 (sut) was expressed under control of the endosperm-specific hordein b1 promoter (ho). compared with the wild type, transgenic hosut grains take up more sucrose (suc) in vitro, showing that the transgene is functional. grain suc levels are not altered, indicating that suc fluxes are influenced rather than steady-s ... | 2010 | 20018590 |
| molecular cytogenetic characterization of a new wheat-thinopyrum intermedium partial amphiploid resistant to powdery mildew and stripe rust. | a partial amphiploid, te253, derived from crosses between the common wheat (triticum aestivum l.) cultivar yannong 15 and thinopyrum intermedium (host) barkworth & d.r. dewey was characterized by cytogenetic observations, disease resistance tests and genomic in situ hybridization (gish). mitotic observations showed that most plants of te253 had 56 chromosomes, but a few had 54 or 55 chromosomes. the chromosomes in most pollen mother cells of plants with 2n = 56 formed 28 bivalents. univalents (0 ... | 2009 | 20016129 |
| selenium accumulation by forage and grain crops and volatilization from seleniferous soils amended with different organic materials. | greenhouse and field experiments were conducted to study the direct and residual effect of applying different organic materials on se accumulation by crops and volatilization from seleniferous soils of northwestern india. among organic manures, press mud and poultry manures proved 4-5 times more effective in reducing se accumulation by different crops than farmyard manure. efficiency of organic manures increased with increase in application rates. application of both press mud and poultry manure ... | 2010 | 20015536 |
| cdna cloning and expression analysis of wheat (triticum aestivum l.) phytoene and ζ-carotene desaturase genes. | carotene desaturation, an essential step in the carotenoid biosynthesis pathway, is catalyzed by two carotene desaturases, phytoene desaturase (pds) and ζ-carotene desaturase (ζ-carotene desaturase, zds). full-length cdnas designated tapds and tazds were cloned from wheat (triticum aestivum cv. chinese spring) respectively, using the rapid amplification of cdna ends (race) approach. the cdna of tapds sequence was 2076 bp long, containing a 1731 bp open reading frame (orf) which deduced protein h ... | 2010 | 20013057 |
| mapping quantitative trait loci for quality factors in an inter-class cross of us and chinese wheat. | wheat quality factors are critical in determining the suitability of wheat (triticum aestivum l.) for end-use product and economic value, and they are prime targets for marker-assisted selection. objectives of this study were to identify quantitative trait loci (qtls) that ultimately influence wheat market class and milling quality. a population of 132 f(12) recombinant inbred lines (rils) was derived by single-seed descent from a cross between the chinese hard wheat line ning7840 and the soft w ... | 2010 | 20012855 |
| recruitment of closely linked genes for divergent functions: the seed storage protein (glu-3) and powdery mildew (pm3) genes in wheat (triticum aestivum l.). | wheat seed storage protein gene loci (glu-3) and powdery mildew resistance gene loci (pm3 and pm3-like) are closely linked on the short arms of homoeologous group 1 chromosomes. to study the structural organization of the glu-3/pm3 loci, three bacterial artificial chromosome clones were sequenced from the a, b, and d genomes of hexaploid wheat. the a and b genome clones contained a glu-3 adjacent to a pm3-like gene organized in a conserved glu-3/sfr159/pm3-like structure. the d genome clone cont ... | 2010 | 20012664 |
| responses of wheat roots to exogenous selenium supply under enhanced ultraviolet-b. | effects of selenium (se) on growth and some physiological traits of roots in wheat (triticum aestivum l. cv han no.7086) seedlings exposed to enhanced ultraviolet-b (uv-b) stress are reported. responses of roots were different depending on the se concentration. compared with the control, root weight of wheat seedlings treated with 1.0 and 2.0 mg se kg(-1) soil increased by 39.47% and 16.28%, respectively. the lower amount se (0.5 mg kg(-1)) and the higher amount se treatments (3.0 mg kg(-1)) did ... | 2010 | 20012381 |
| genetic fusarium chemotyping as a useful tool for predicting nivalenol contamination in winter wheat. | fusarium graminearum [teleomorph gibberella zeae] and fusarium culmorum together with fusarium poae are the main species known to produce nivalenol (niv). the niv content in wheat (triticum aestivum l.) harvested in luxembourg was investigated in 2007 and 2008 at 17 different locations. species determination and genetic chemotyping of f. graminearum and f. culmorum were used to understand the spatial distribution of niv producers in wheat from luxembourg. three hundred thirteen f. graminearum, 1 ... | 2010 | 20004994 |
| proteolytic activity and cysteine protease expression in wheat leaves under severe soil drought and recovery. | the involvement of acidic proteases in soil drought response of winter wheat (triticum aestivum l.) at seedling stage in three cultivars differing in water stress tolerance was studied. withholding irrigation for seven days resulted in severe drought stress corresponding to 60% leaf water deficit. stressed plants were recovered by providing optimal water supply for 3 days. reversible changes in leaf pigment and protein content were registered, being least expressed in the drought-resistant culti ... | 2016 | 20004107 |
| simultaneous determination of rubisco carboxylase and oxygenase kinetic parameters in triticum aestivum and zea mays using membrane inlet mass spectrometry. | the lack of complete rubisco kinetic data for numerous species is partly because of the time consuming nature of the multiple methods needed to assay all of the rubisco parameters. we have developed a membrane inlet mass spectrometer method that simultaneously determines the rate of rubisco carboxylation (v(c)) and oxygenation (v(o)), and the co(2) and o(2) concentrations. using the collected data, the michaels-menten equations for v(c) and v(o) in response to changing co(2) and o(2) concentrati ... | 2010 | 20002330 |
| discovery, evaluation and distribution of haplotypes of the wheat ppd-d1 gene. | ppd-d1 is one of the most potent genes affecting the photoperiod response of wheat (triticum aestivum). only two alleles, insensitive ppd-d1a and sensitive ppd-d1b, were known previously, and these did not adequately explain the broad adaptation of wheat to photoperiod variation. in this study, five diagnostic molecular markers were employed to identify ppd-d1 haplotypes in 492 wheat varieties from diverse geographic locations and 55 accessions of aegilops tauschii, the d genome donor species of ... | 2010 | 20002313 |
| structural differences among alkali-soluble arabinoxylans from maize (zea mays), rice (oryza sativa), and wheat (triticum aestivum) brans influence human fecal fermentation profiles. | human fecal fermentation profiles of maize, rice, and wheat bran and their dietary fiber fractions released by alkaline-hydrogen peroxide treatment (principally arabinoxylan) were obtained with the aim of identifying and characterizing fractions associated with high production of short chain fatty acids and a linear fermentation profile for possible application as a slowly fermentable dietary fiber. the alkali-soluble fraction from maize bran resulted in the highest short chain fatty acid produc ... | 2010 | 20000566 |
| decolorization and detoxification of sulfonated azo dye methyl orange by kocuria rosea mtcc 1532. | kocuria rosea (mtcc 1532) showed 100% decolorization of methyl orange (50 mg l(-1)) under static condition. the optimum ph and temperature for dye decolorization was 6.8 and 30 degrees c, respectively. the k. rosea (mtcc 1532) showed maximum decolorization of methyl orange when growth medium containing yeast extract as compared to other substrates. the culture exhibited significant ability to decolorize repeated additions of dye, with reduction in time up to 12 h at eighth dye aliquot addition. ... | 2010 | 19969416 |
| [ecotoxicological effects of oxytetracycline on wheat (triticum aestivum) based on seed germination and seedling development]. | the ecotoxicological effects of oxytetracycline (otc) on the germination of wheat (triticum aestivum) seeds and the early development of wheat seedlings were investigated. the results showed that the elongation of wheat shoots and roots was significantly (p < 0.05) inhibited by otc, and there was a good dose-response relationship between the otc concentration and inhibition rates. according to the linear regression equation, ec50 of otc for inhibiting wheat shoot and root elongation was 65.5 mg/ ... | 2009 | 19968125 |
| genetic diversity of iranian aegilops tauschii coss. using microsatellite molecular markers and morphological traits. | aegilops tauschii coss. is a diploid (2n = 2x = 14,dd) goat grass species which has contributed the d genome in common wheat. genetic variations in 28 accessions of aegilops tauschii belonged to different provinces of iran, were evaluated using 16 morphological traits and 19 ssr markers. in number of spikelet per spike and plant height, there was a high variation in ssp. tauschii and ssp. strangulata respectively and for days to mature a low variation in both subspecies was found. discriminant f ... | 2010 | 19967455 |
| reactive oxygen species are involved in plant defense against a gall midge. | reactive oxygen species (ros) play a major role in plant defense against pathogens, but evidence for their role in defense against insects is still preliminary and inconsistent. in this study, we examined the potential role of ros in defense of wheat (triticum aestivum) and rice (oryza sativa) against hessian fly (mayetiola destructor) larvae. rapid and prolonged accumulation of hydrogen peroxide (h(2)o(2)) was detected in wheat plants at the attack site during incompatible interactions. increas ... | 2010 | 19965963 |
| gamma-conglutin, the lupinus albus xegip-like protein, whose expression is elicited by chitosan, lacks of the typical inhibitory activity against gh12 endo-glucanases. | gamma-conglutin, a glycoprotein from lupinus albus seed, has been characterized at molecular level but its physiological function is still unknown. gamma-conglutin shares a high structural similarity with xyloglucan-specific endo-beta-1,4-glucanase inhibitor proteins (xegips) and triticum aestivum xylanase inhibitor (taxi-i), which act specifically against fungal glycosyl hydrolase belonging to families 12 and 11, respectively. to assess the possible involvement of gamma-conglutin in plant defen ... | 2010 | 19962718 |
| effects of ozone on growth, yield and leaf gas exchange rates of two bangladeshi cultivars of wheat (triticum aestivum l.). | to clarify the effects of o(3) on crop plants cultivated in bangladesh, two bangladeshi wheat cultivars (sufi and bijoy) were grown in plastic boxes filled with andisol and exposed daily to charcoal-filtered air or o(3) at 60 and 100 nl l(-1) (10:00-17:00) from 13 march to 4 june 2008. the whole-plant dry mass and grain yield per plant of the two cultivars at the final harvest were significantly reduced by the exposure to o(3). although there was no significant effect of o(3) on stomatal diffusi ... | 2010 | 19962222 |
| using nirs to predict fiber and nutrient content of dryland cereal cultivars. | residue from cultivars of spring wheat (triticum aestivum l.), winter wheat, and spring barley (hordeum vulgare l.) was characterized for fiber and nutrient traits using reference methods and near-infrared spectroscopy (nirs). calibration models were developed for neutral detergent fiber (ndf), acid detergent fiber (adf), acid detergent lignin (adl), carbon (c), sulfur (s), nitrogen (n), and c:n. when calibrations were tested against validation sets for each crop year, nirs was an acceptable met ... | 2010 | 19961223 |
| differential effects of cold, osmotic stress and abscisic acid on polyamine accumulation in wheat. | the effects of cold, osmotic stress and abscisic acid (aba) on polyamine accumulation were compared in the moderately freezing-sensitive wheat (triticum aestivum l.) variety chinese spring (cs) and in two derived chromosome 5a substitution lines, cs(t. spelta 5a) and cs(cheyenne 5a), exhibiting lower and higher levels of freezing tolerance, respectively. when compared with the other treatments, putrescine (put) and spermidine (spd) levels were much greater after cold treatment, spermine (spm) fo ... | 2010 | 19960214 |
| overexpression of a wheat jasmonate-regulated lectin increases pathogen resistance. | jasmonates are known to induce the transcriptional activation of plant defense genes, which leads to the production of jasmonate-regulated proteins (jrp). we previously cloned and characterized a novel jacalin-like lectin gene (ta-ja1) from wheat (triticum aestivum l.), which codes a modular jrp with disease response and jacalin-related lectin (jrl) domains and is present only in the gramineae family. the function of this protein is still unclear. phylogenetic analysis indicated that ta-ja1 and ... | 2010 | 19958808 |
| evaluation of elastic modulus and hardness of crop stalks cell walls by nano-indentation. | agricultural biomaterials such as crop stalks are natural sources of cellulosic fiber and have great potential as reinforced materials in bio-composites. in order to evaluate their potential as materials for reinforcement, the nano-mechanical properties of crop-stalk cell walls, i.e. those of cotton (gossypium herbaceu) stalk, soybean (glycine max) stalk, cassava (manihot esculent) stalk, rice (oryza sativa l.) straw, and wheat (triticum aestivum l.) straw, were investigated by means of nano-ind ... | 2010 | 19954968 |
| fermentation supernatants of wheat ( triticum aestivum l.) aleurone beneficially modulate cancer progression in human colon cells. | wheat aleurone contains high amounts of dietary fibers that are fermented by the microflora, resulting in the formation of short-chain fatty acids (scfa), which are recognized for their chemopreventive potential. this study investigated the effects of fermented aleurone on growth, apoptosis, differentiation, and expression of several genes using two different human colon cell lines (lt97 and ht29). in lt97 cells, the fermentation supernatant (fs) aleurone reduced significantly the cell growth (e ... | 2010 | 19954215 |
| molecular genetic description of the cryptic wheat-aegilops geniculata introgression carrying rust resistance genes lr57 and yr40 using wheat ests and synteny with rice. | the cryptic wheat-alien translocation t5dl.5ds-5mgs(0.95), with leaf rust and stripe rust resistance genes lr57 and yr40 transferred from aegilops geniculata (ugmg) into common wheat, was further analyzed. molecular genetic analysis using physically mapped ests showed that the alien segment in t5dl.5ds-5mgs(0.95) represented only a fraction of the wheat deletion bin 5ds2-0.78-1.00 and was less than 3.3 cm in length in the diploid wheat genetic map. comparative genomic analysis indicated a high l ... | 2009 | 19953130 |
| [features of alloplasmic wheat-barley substitution and addition lines (hordeum marinum subsp. gussoneanum)-triticum aestivum]. | two alloplasmic wheat-barley substitution lines were studied: a line replaced at three pairs of chromosomes 1hmr((ib), 5hmar(5d), and 7hmar(7d), and the disomic-substituted line 7hma(7d). the lines were constructed on the basis of individual plants from bcif8- and bc2f6 progeny of barley-wheat hybrids (h. marinum subsp. gussoneanum hudson (=h. geniculatum all.) (2n = 28) x t. aestivum l.) (2n = 42) (pyrotrix 28), respectively. moreover, the alloplasmic wheat-barley ditelosomic addition line 7hlm ... | 2009 | 19947550 |
| assessment of genes controlling area under disease progress curve (audpc) for stripe rust (p. striiformis f. sp. tritici) in two wheat (triticum aestivum l.) crosses. | genetic effects on controlling stripe rust resistance were determined in two wheat crosses, bakhtawar-92 x frontana (cross 1) and inqilab-91 x fakhre sarhad (cross 2) using area under disease progress curve (audpc) as a measure of stripe rust resistance. the resistant and susceptible genotypes for crosses were identified by initial assessment of 45 wheat accessions for stripe rust resistance. mixed inheritance model was applied to the data analysis of six basic populations p1, f1, p2, b1, b2, an ... | 2009 | 19938644 |
| [identification and characteristics of the 1r (1b) bread wheat substitution strains]. | the 1r (1b) chromosome substitution has been identified at two introgression bread wheat stocks derived from the cross between an octoploid triticale and durum wheat. the substitution is marked by original alleles of the secaline coding loci sec1 and sec2. at rather low level of chromosome pairing, high winter-hardiness and frost resistance, and yield productivity both in favorable and in unfavorable years the stocks are differentiated for these traits. | 2015 | 19938634 |
| [bioindication of environmental quality based on plant mutational and modification variability]. | the level of mutations (aberrations of chromosomes, gene mutations) and modifications (bilateral asymmetry of the leaves) induced with ng (n-methyl-n-nitro-n-nitro-zoguanidine) and granozane, as well as with environmental pollutants have been studied on vicia faba, triticum aestivum, arabidopsis thaliana, ligustrum japonicum, olea europea. the tested xenobiotic increased the level of mutations and modifications. the bilateral asymmetry is suggested as a test for environmental quality assessment. | 2009 | 19938627 |
| evaluation of the genetic variability of homoeologous group 3 ssrs in bread wheat. | thorough characterization of the genetic variability in bread wheat (triticum aestivum l.) is important for a better improvement of this key crop and to increase cereal yield in the context of sustainable agriculture to face human needs in the next decades. to study the genetic variability of ssrs on wheat homoeologous group 3 chromosomes, we characterized 38 hexaploid and two tetraploid wheat lines using a set of 165 microsatellites that we cytogenetically assigned to the 17 deletion bins for c ... | 2009 | 19938624 |
| rapid biodegradation and decolorization of direct orange 39 (orange tgll) by an isolated bacterium pseudomonas aeruginosa strain bch. | a newly isolated novel bacterium from sediments contaminated with dyestuff was identified as pseudomonas aeruginosa strain bch by 16s rrna gene sequence analysis. the bacterium was extraordinarily active and operative over a wide rage of temperature (10-60 degrees c) and salinity (5-6%), for decolorization of direct orange 39 (orange tgll) at optimum ph 7. this strain was capable of decolorizing direct orange 39; 50 mg l(-1) within 45 +/- 5 min, with 93.06% decolorization, while maximally it cou ... | 2010 | 19937265 |
| computational identification of micrornas and their targets in wheat (triticum aestivum l.). | micrornas (mirnas) are a class of endogenous, non-coding, short (approximately 21 nt) rnas directly involved in regulating gene expression at the post-transcriptional level. previous reports have noted that plant mirnas in the plant kingdom are highly conserved, which provides the foundation for identification of conserved mirnas in other plant species through homology alignment. conserved mirnas in wheat are identified using est (expressed sequence tags) and gss analysis. all previously known m ... | 2009 | 19937208 |
| identification of genes for resistance to a digitaria isolate of magnaporthe grisea in common wheat cultivars. | common wheat cultivars are resistant to magnaporthe grisea, a crabgrass (digitaria sanguinalis)-specific species of the blast fungus. to dissect the genetic basis of this "nonhost" type of resistance, we need an exceptional cultivar that is susceptible to m. grisea. a screening under various conditions revealed that triticum aestivum 'chinese spring' (cs) was susceptible to m. grisea isolate dig41 when incubated at high temperature (26 degrees c) after inoculation. by contrast, t. aestivum 'p168 ... | 2009 | 19935928 |
| chromosomal location of the cadmium uptake gene (cdu1) in durum wheat. | levels of the heavy metal cadmium (cd) in food products are a food safety concern. grain cd is higher in durum (triticum turgidum l. var. durum) than in common wheat, so reduction of cd in durum grain is a priority of breeding programs. previous research demonstrated that a single dominant gene, cdu1, confers the low grain cd phenotype, but the map location of the gene is not known. a doubled haploid population segregating for cd concentration, developed from the cross of w9262-260d3 (a kyle*2/b ... | 2009 | 19935921 |
| [fish analysis of a crw-homology sequence from pseudoroegneria spicata in thinopyrum ponticum and th. intermedium]. | to verify the genome components of thinopyrum ponticum liu alt; wang and th. intermedium [host] barkworth alt; dewey, six specific primer pairs were designed according to the sequence of an autonomous centromeric retrotransposon of wheat (crw) from triticum boeoticum. several dna fragments were amplified by pcr from the genomic dna of the diploid species pseudoroegneria spicata a löve. after sequence alignment, a 1.755 kb fragment was obtained and named as pstc1 (st genome centromere associated ... | 2009 | 19933096 |
| chlorophyll a fluorescence study revealing effects of high salt stress on photosystem ii in wheat leaves. | in order to study the effects of high salt stress on ps ii in detached wheat (triticum aestivum) leaves, the seedlings were grown in knop solution and temperature was 20 +/- 2 degrees c. detached leaves were exposed to high salt stress (0.1-0.5 m nacl) for 1 h in dark and chl a fluorescence induction kinetics was measured. various parameters like fv/fm, abs/rc, eto/tro, performance index and area over the florescence curve were measured and the energy pipeline model was deduced in response to sa ... | 2010 | 19932973 |
| an analysis of dormancy, aba responsiveness, after-ripening and pre-harvest sprouting in hexaploid wheat (triticum aestivum l.) caryopses. | embryo and caryopsis dormancy, abscisic acid (aba) responsiveness, after-ripening (ar), and the disorder pre-harvest sprouting (phs) were investigated in six genetically related wheat varieties previously characterized as resistant, intermediate, or susceptible to phs. timing of caryopsis ar differed between varieties; ar occurred before harvest ripeness in the most phs-susceptible, whereas ar was slowest in the most phs-resistant. whole caryopses of all varieties showed little aba-responsivenes ... | 2010 | 19923197 |
| efficient mapping of a female sterile gene in wheat (triticum aestivum l.). | studies on inheritance of fertility are of great importance in wheat breeding. although substantial progress has been achieved in molecular characterization of male sterility and fertility restoration recently, little effort has been devoted to female sterility. to identify the gene(s) controlling female sterility in wheat efficiently, an investigation was conducted for the seed setting ratio using a set of f2 populations derived from the cross between a female sterile line xnd126 and an elite c ... | 2009 | 19922697 |
| partitioning of phenanthrene by root cell walls and cell wall fractions of wheat (triticum aestivum l.). | plant cells have been reported to play an important role in the uptake of organic contaminants. this study was undertaken to provide an insight into the role of the root cell walls and their subfractions on sorption of phenanthrene to roots of wheat (triticum aestivum l.). root cell walls were isolated and further sequentially fractioned by removing pectin, hemicellulose one, and hemicellulose two. they were characterized by elemental analysis, fourier transform infrared spectroscopy, and solid- ... | 2009 | 19921856 |
| transcript profiles of two wheat lipid transfer protein-encoding genes are altered during attack by hessian fly larvae. | a sequence encoding a putative type-1 lipid transfer protein from wheat (triticum aestivum l. em thell) was identified through 'genecalling', an mrna profiling technology. the mrna for the hfr-ltp (hessian fly-responsive lipid transfer protein) gene decreased in abundance (196-fold) in susceptible wheat plants over the first eight days of attack by virulent hessian fly larvae (mayetiola destructor say). hfr-ltp encodes a putative protein containing eight cysteine residues that are conserved amon ... | 2010 | 19914842 |
| high frequency of hmw-gs sequence variation through somatic hybridization between agropyron elongatum and common wheat. | a symmetric somatic hybridization was performed to combine the protoplasts of tall wheatgrass (agropyron elongatum) and bread wheat (triticum aestivum). fertile regenerants were obtained which were morphologically similar to tall wheatgrass, but which contained some introgression segments from wheat. an sds-page analysis showed that a number of non-parental high-molecular weight glutenin subunits (hmw-gs) were present in the symmetric somatic hybridization derivatives. these sequences were ampli ... | 2010 | 19902245 |
| transcriptional differences in gene families of the ascorbate-glutathione cycle in wheat during mild water deficit. | when comparing the responses of two wheat (triticum aestivum l.) genotypes, the drought-tolerant plainsman v and the drought-sensitive cappelle desprez, to reduced amounts of irrigation water, we found differences in ascorbate metabolism: both ascorbate oxidation and transcription levels of enzymes processing ascorbate were changed. relative transcript levels of ascorbate peroxidase (apx), monodehydroascorbate reductase (mdar), dehydroascorbate reductase (dhar) and glutathione reductase (gr) iso ... | 2010 | 19902215 |
| nanosims analysis of arsenic and selenium in cereal grain. | *cereals are an important source of selenium (se) to humans and many people have inadequate intakes of this essential trace element. conversely, arsenic (as) is toxic and may accumulate in rice grain at levels that pose a health risk. knowledge of the localization of selenium and arsenic within the cereal grain will aid understanding of their deposition patterns and the impact of processes such as milling. *high-resolution secondary ion mass spectrometry (nanosims) was used to determine the loca ... | 0 | 19895416 |
| two prolamin peptides from durum wheat preclude celiac disease-specific t cell activation by gluten proteins. | celiac disease (cd) is a permanent intolerance to wheat prolamins and related proteins displayed by genetically susceptible individuals. blocking or modulation of cd-specific t cell response by altered prolamin peptides are currently considered as a potential alternative to the only effective therapy of cd based on a life-long gluten-free diet. two prolamin peptides, the 9-mer asrvapgqq and the 10-mer gtvgvapgqq sequences, were identified by mass spectrometry in the peptic/tryptic digest of prol ... | 2010 | 19894071 |
| cloning and phylogenetic analysis of phytoene synthase 1 (psy1) genes in common wheat and related species. | cloning and phylogenetic analysis of psy1 genes in common wheat and its relatives would help to understand the genetic diversity and evolution of psy1 gene in common wheat and its related species. in the present study, common wheat (aabbdd) and eight relative species, including t. urartu (a(u)a(u)), t. boeoticum (a(m)a(m)), t. monococcum (a(m)a(m)), ae. speltoides (ss), ae. tauschii (dd), t. dicoccoides (aabb), t. dicoccum (aabb) and t. spelta (aabbdd), were sampled for the isolation of novel al ... | 2009 | 19891741 |
| plant responses to seven russian wheat aphid (hemiptera: aphididae) biotypes found in the united states. | the russian wheat aphid, diuraphis noxia (kurdjumov) (hemiptera: aphididae), is a serious wheat, triticum aestivum l., and barley, hordeum vulgare l., pest throughout the small grain-producing areas in the western united states. the virulency and classification of recently described russian wheat aphid biotypes 1-7 (rwa1-7) were clarified using 24 plant differentials. these seven biotypes had been described previously using various methods and test environments; therefore, the purpose of this st ... | 2009 | 19886462 |
| wheat antixenosis, antibiosis, and tolerance to infestation by delphacodes kuscheli (hemiptera: delphacidae), a vector of "mal de río cuarto" in argentina. | "mal de rio cuarto", is the most important virus disease of corn, zea mays l., in argentina. it is caused by the mal de rio cuarto virus (family reoviridae, genus fijivirus. mrcv), which is a persistent virus transmitted by delphacodes kuscheli (fennah 1955) (hemiptera: delphacidae). because corn is not a natural host of d. kuscheli, it has little protection from this pest. in contrast, wheat, triticum aestivum l., is one of the main hosts of this vector and a reservoir of mrcv. the aim of this ... | 2009 | 19886444 |
| wheat and sorghum residue removal for expanded uses increases sediment and nutrient loss in runoff. | crop residue removal for expanded uses such as feedstocks for cellulosic ethanol production may increase loss of sediment and nutrients in runoff. we assessed on-farm impacts of variable rates of residue removal from no-till winter wheat (triticum aestivum l.) and plow till grain sorghum [sorghum bicolor (l.) moench] on sediment, soil organic carbon (soc) and nutrient losses in runoff in western kansas. five treatments with three replications consisting of removing residues at 0, 25, 50, 75, and ... | 2017 | 19875792 |
| alteration in phosphate uptake potential of wheat plants co-cultivated with salicylic acid. | the phosphate uptake potential was significantly stimulated with low concentration of salicylic acid (sa). in one of the wheat cultivars (triticum aestivum var. sonalika), 50 microm sa stimulated phosphate (po(4)(3-)) uptake. at higher concentrations of sa (500 and 1000 microm), the rate of uptake was reduced. these findings underscore the light and dose-dependent biphasic action of sa: a low 50 microm stimulated, and high concentrations 500 and 1000 microm inhibited, po(4)(3-) uptake. | 2010 | 19875194 |
| molecular detection of genomic regions associated with grain yield and yield-related components in an elite bread wheat cross evaluated under irrigated and rainfed conditions. | grain yield and grain weight of wheat are often decreased by water-limitation in the north-eastern cropping belt of australia. based on knowledge that cimmyt lines are well-adapted in this region, a recombinant inbred line (ril) population between two elite cimmyt bread wheats (seri m82 and babax) was evaluated under water-limited environments. fourteen productivity traits were evaluated in 192 progeny in up to eight trials. for three aggregations of the environments (all, high yield or low yiel ... | 2010 | 19865806 |
| localization of rad50, a single-copy gene, on group 5 chromosomes of wheat, using a fish protocol employing tyramide for signal amplification (tyr-fish). | an indirect tyramide signal amplification fish technique (tyr-fish) was adapted to detect single-copy genes in plants. in this study, rad50 loci (responsible for a protein involved in the repair of breaks in double-stranded dna) were localized on the chromosomes of homologous group 5 in common wheat (triticum aestivum). three loci, rad50a, rad50b and rad50d, none of which have been previously mapped using any kind of molecular approach, were localized at similar positions on the short arm of chr ... | 2009 | 19864895 |
| wheat (triticum aestivum) nam proteins regulate the translocation of iron, zinc, and nitrogen compounds from vegetative tissues to grain. | the nam-b1 gene is a nac transcription factor that affects grain nutrient concentrations in wheat (triticum aestivum). an rnai line with reduced expression of nam genes has lower grain protein, iron (fe), and zinc (zn) concentrations. to determine whether decreased remobilization, lower plant uptake, or decreased partitioning to grain are responsible for this phenotype, mineral dynamics were quantified in wheat tissues throughout grain development. control and rnai wheat were grown in potting mi ... | 2009 | 19858116 |