Publications
| Title | Abstract | Year Filter | PMID(sorted ascending) Filter |
|---|
| genetic dissection of chlorophyll content at different growth stages in common wheat. | quantitative trait loci (qtls) for chlorophyll content were studied using a doubled haploid (dh) population with 168 progeny lines, derived from a cross between two elite chinese wheat cultivars huapei 3 x yumai 57. chlorophyll content was evaluated at the maximum tillering stage (ms), the heading stage (hs), and the grain filling stage (gs), at three different environments in 2005 and 2006 cropping seasons. qtl analyses were performed using a mixed linear model approach. a total of 17 additive ... | 2009 | 19700856 |
| seed-specific expression of the wheat puroindoline genes improves maize wet milling yields. | the texture of maize (zea mays l.) seeds is important to seed processing properties, and soft dent maize is preferred for both wet-milling and livestock feed applications. the puroindoline genes (pina and pinb) are the functional components of the wheat (triticum aestivum l.) hardness locus and together function to create soft grain texture in wheat. the pins (pina and pinb) are believed to act by binding to lipids on the surface of starch granules, preventing tight adhesion between starch granu ... | 2009 | 19702647 |
| plant resistance signalling hijacked by a necrotrophic fungal pathogen. | the strategies used by necrotrophic fungal pathogens to infect plants are often perceived as lacking the sophistication of their haustorium producing, host defence suppressing, biotrophic counterparts. there is also a relative paucity of knowledge regarding how effective gene-for-gene based resistance reactions might function against necrotrophic plant pathogens. however, recent data has emerged from a number of systems which has highlighted that particular species of necrotrophic (and/or hemibi ... | 2008 | 19704431 |
| biotic and abiotic stress responses through calcium-dependent protein kinase (cdpk) signaling in wheat (triticum aestivum l.). | calcium-dependent protein kinases (cdpks) sense the calcium concentration changes in plant cells and play important roles in signaling pathways for disease resistance and various stress responses as indicated by emerging evidences. among the 20 wheat cdpk genes studied, 10 were found to respond to drought, salinity and aba treatments. consistent with previous observations, one cdpk gene was shown to respond to multiple abiotic stresses in wheat suggesting that cdpks could be converging points fo ... | 2008 | 19704816 |
| [genetic analysis of the traits introgressed from aegilops speltoides tausch. to common wheat and determined by chromosome 5a genes]. | a winter common wheat accession from the arsenal collection was genetically examined to study the results of introgression, which substantially changed the physiological and morphological traits of the original spring cultivar rodina. apart from its winter habit, the accession was characterized by awned speltoid spikes, suggesting introgression into chromosome 5a, which carried marker genes in the order vrn-al-q-bl. genetic analysis showed that the chromosome fragment introgressed from aegilops ... | 2009 | 19705742 |
| conserved globulin gene across eight grass genomes identify fundamental units of the loci encoding seed storage proteins. | the wheat high molecular weight (hmw) glutenins are important seed storage proteins that determine bread-making quality in hexaploid wheat (triticum aestivum). in this study, detailed comparative sequence analyses of large orthologous hmw glutenin genomic regions from eight grass species, representing a wide evolutionary history of grass genomes, reveal a number of lineage-specific sequence changes. these lineage-specific changes, which resulted in duplications, insertions, and deletions of gene ... | 2010 | 19707805 |
| se(iv) phytotoxicity for monocotyledonae cereals (hordeum vulgare l., triticum aestivum l.) and dicotyledonae crops (sinapis alba l., brassica napus l.). | the phytotoxicity of se(iv) was determined through root and shoot growth inhibition, biomass (dry (dm), fresh (fm)) production, water content, photosynthetic pigment (chlorophyll a, chlorophyll b and carotenoids) levels and se accumulation in the roots and shoots. the sensitivities of monocotyledonae (hordeum vulgare, triticum aestivum) and dicotyledonae plants (sinapis alba, brassica napus) were also compared. except for h. vulgare, se(iv) inhibited root growth more than shoot growth. as for bi ... | 2009 | 19709809 |
| a modified tilling approach to detect induced mutations in tetraploid and hexaploid wheat. | wheat (triticum ssp.) is an important food source for humans in many regions around the world. however, the ability to understand and modify gene function for crop improvement is hindered by the lack of available genomic resources. tilling is a powerful reverse genetics approach that combines chemical mutagenesis with a high-throughput screen for mutations. wheat is specially well-suited for tilling due to the high mutation densities tolerated by polyploids, which allow for very efficient screen ... | 2009 | 19712486 |
| protein phosphatase activity and sucrose-mediated induction of fructan synthesis in wheat. | in this work, we analyze protein phosphatase (pp) involvement in the sucrose-mediated induction of fructan metabolism in wheat (triticum aestivum). the addition of okadaic acid (oa), a pp-inhibitor, to sucrose-fed leaves reduced fructosylsucrose-synthesizing activity (fss) induction in a dose-dependent manner. the expression of the two enzymes that contribute to fss activity, 1-sst (1-sucrose:sucrose fructosyltransferase, e.c. 2.4.1.99) and 6-sft (6-sucrose:fructan fructosyltransferase, e.c. 2.4 ... | 2009 | 19714360 |
| effect of wheat forage maturity and preservation method on forage chemical composition and performance of growing calves fed mixed diets. | three 2.4-ha wheat (triticum aestivum l.) fields were used to test the effects of maturity at harvest (boot vs. dough) and preservation method (hay vs. silage) on forage yield, chemical composition, and animal performance when fed in mixed diets. forages were incorporated into 4 diets in a 2 x 2 factorial arrangement of treatments with hominy feed, soybean hulls, and cottonseed meal as the primary concentrate ingredients. in exp. 1 diets contained 20% wheat forage (dm basis) and were fed to 96 b ... | 2009 | 19717767 |
| variation of b chromosome associated with tissue culture in wheat-rye cross. | in vitro variation of b chromosomes was studied by examining the callus cells derived from the immature embryos from a cross of chinese spring wheat (triticum aestivum l.) and fin 7416 rye (secale cereale l.) carrying two b chromosomes. in 40-d-old callus cells, the numbers of b chromosomes ranged from one to four in 65.6% of the cells observed. the distribution of b chromosome numbers was associated with the ploidy levels of the normal chromosomes (a chromosomes). the frequency of the cells wit ... | 2009 | 19723242 |
| involvement of s-adenosylmethionine-dependent halide/thiol methyltransferase (htmt) in methyl halide emissions from agricultural plants: isolation and characterization of an htmt-coding gene from raphanus sativus (daikon radish). | biogenic emissions of methyl halides (ch3cl, ch3br and ch3i) are the major source of these compounds in the atmosphere; however, there are few reports about the halide profiles and strengths of these emissions. halide ion methyltransferase (hmt) and halide/thiol methyltransferase (htmt) enzymes concerning these emissions have been purified and characterized from several organisms including marine algae, fungi, and higher plants; however, the correlation between emission profiles of methyl halide ... | 2009 | 19723322 |
| creating s-type characteristics in the f-type enzyme fructan:fructan 1-fructosyltransferase of triticum aestivum l. | invertases cleave sucrose in glucose and fructose, using water as an acceptor. fructosyltransferases catalyse the transfer of a fructosyl residue between sucrose and/or fructan molecules. plant fructosyltransferases (fts) evolved from vacuolar invertases by small mutational changes, leading to differences in substrate specificity. the s-type of enzymes (invertases, sucrose:sucrose 1-fructosyltransferases or 1-ssts, and sucrose:fructan 6-fructosyltransferases or 6-sfts) prefer sucrose as the dono ... | 2009 | 19726634 |
| development of wheat-lophopyrum elongatum recombinant lines for enhanced sodium 'exclusion' during salinity stress. | lophopyrum elongatum (tall wheatgrass), a wild relative of wheat, can be used as a source of novel genes for improving salt tolerance of bread wheat. sodium 'exclusion' is a major physiological mechanism for salt tolerance in a wheat-tall wheatgrass amphiploid, and a large proportion ( approximately 50%) for reduced na(+) accumulation in the xag leaf, as compared to wheat, was earlier shown to be contributed by genetic effects from substitution of chromosome 3e from tall wheatgrass for wheat chr ... | 2009 | 19727655 |
| isolation and sequence analysis of the wheat b genome subtelomeric dna. | telomeric and subtelomeric regions are essential for genome stability and regular chromosome replication. in this work, we have characterized the wheat bac (bacterial artificial chromosome) clones containing spelt1 and spelt52 sequences, which belong to the subtelomeric repeats of the b/g genomes of wheats and aegilops species from the section sitopsis. | 2009 | 19732459 |
| a proteomic study of the response to salinity and drought stress in an introgression strain of bread wheat. | the effect of drought and salinity stress on the seedlings of the somatic hybrid wheat cv. shanrong no. 3 (sr3) and its parent bread wheat cv. jinan 177 (jn177) was investigated using two-dimensional gel electrophoresis and mass spectrometry. of a set of 93 (root) and 65 (leaf) differentially expressed proteins (deps), 34 (root) and six (leaf) deps were cultivar-specific. the remaining deps were salinity/drought stress-responsive but not cultivar-specific. many of the deps were expressed under b ... | 2009 | 19734139 |
| predicting stored grain insect population densities using an electronic probe trap. | manual sampling of insects in stored grain is a laborious and time-consuming process. automation of grain sampling should help to increase the adoption of stored grain integrated pest management. a new commercial electronic grain probe trap (opi insector) has recently been marketed. we field tested opi insector electronic grain probes in two bins, each containing 32.6 tonnes of wheat, triticum aestivum l., over a 2-yr period. we developed new statistical models to convert insector catch into ins ... | 2009 | 19736786 |
| sampling plans for the psocids liposcelis entomophila and liposcelis decolor (psocoptera: liposcelididae) in steel bins containing wheat. | psocids are an emerging problem in grain storage, handling, and processing facilities in the united states. we used data from two steel bins each containing 32.6 metric tonnes of wheat, triticum aestivum l., to develop sampling plans for liposcelis entomophila (enderlein), liposcelis decolor (pearman) (both psocoptera: liposcelididae), and a mixture of the two species. taylor's coefficients a (a sampling factor) and b (an index of aggregation) for these pests were calculated and incorporated int ... | 2009 | 19736788 |
| molecular mapping of a stripe rust resistance gene in spring wheat cultivar zak. | stripe rust (yellow rust), caused by puccinia striiformis f. sp. tritici, is one of the most devastating foliar diseases of wheat (triticum aestivum) worldwide. growing resistant cultivars is the best approach for control of the disease. although the stripe rust resistance in spring wheat cv. zak has been circumvented by a group of races of the pathogen predominant in the united states since 2000, the resistance genes in zak were unknown. to identify and map the genes for resistance to stripe ru ... | 2009 | 19740035 |
| genotyping of the q locus in wheat by a simple pcr-rflp method. | the q locus located on the long arm of chromosome 5a is a key factor in evolution and widespread cultivation of domesticated wheat. the q locus pleiotropically affects many agronomically important traits including threshability, glume shape and tenacity, rachis fragility and others. genotyping of the q locus based on the complex traits is ambiguous due to their multi-genetic control through interactions with the q locus. to determine the q locus genotype of wheat accessions possessing a genome, ... | 2009 | 19745572 |
| toxicological responses in wheat triticum aestivum under joint stress of chlorimuron-ethyl and copper. | it was observed in this work that joint effects of chlorimuron-ethyl and copper on chlorophyll content, the peroxidases (pod) activity, superoxide dismutases (sod) activity and soluble protein content in leaves and roots of wheat were markedly significant. the chlorophyll content and the sod activity in wheat under joint stress of chlorimuron-ethyl and copper were obviously higher than that under single stress of chlorimuron-ethyl. however, joint effect of chlorimuron-ethyl and copper on the dec ... | 2009 | 19748121 |
| fall growth, nutritive value, and estimation of total digestible nutrients for cereal-grain forages in the north-central united states. | throughout the southern great plains, wheat is managed frequently as a dual-purpose crop, but this production paradigm is not necessarily applicable throughout other regions of the united states, and a wider array of management options can be considered for forage-only uses of cereal grains. our objectives were to assess the fall-growth potential of wheat (triticum aestivum l.), triticale (x triticosecale wittmack), and oat (avena sativa l.) cultivars in wisconsin, and then to further evaluate a ... | 2010 | 19749014 |
| in planta mutagenesis determines the functional regions of the wheat puroindoline proteins. | in planta analysis of protein function in a crop plant could lead to improvements in understanding protein structure/function relationships as well as selective agronomic or end product quality improvements. the requirements for successful in planta analysis are a high mutation rate, an efficient screening method, and a trait with high heritability. two ideal targets for functional analysis are the puroindoline a and puroindoline b (pina and pinb, respectively) genes, which together compose the ... | 2009 | 19752217 |
| antioxidant responses of wheat seedlings to exogenous selenium supply under enhanced ultraviolet-b. | the paper reports the effects of selenium (se) supply on growth and antioxidant traits of wheat (triticum aestivum l. cv han no.7086) seedlings exposed to enhanced ultraviolet-b (uv-b) stress. antioxidant responses of seedlings were different depending on the se concentration. compared with the control, the lower amount used (0.5 mg se kg(-1) soil) had no significant effect on biomass accumulation. the treatments with 1.0, 2.0, and 3.0 mg se kg(-1) promoted biomass accumulation of wheat seedling ... | 2010 | 19756399 |
| analysis of diversity and linkage disequilibrium along chromosome 3b of bread wheat (triticum aestivum l.). | a highly polymorphic core collection of bread wheat and a more narrow-based breeding material, gathered from pedigrees of seven modern cultivars, was analysed in order to compare genetic diversity indices and linkage disequilibrium (ld) patterns along the chromosome 3b with microsatellite (ssr) and diversity arrays technology markers. five ancestral gene pools could be identified within the core collection, indicating a strong geographical structure (northwest europe, southeast europe, cimmyt-ic ... | 2009 | 19756470 |
| qtl mapping for adult-plant resistance to stripe rust in italian common wheat cultivars libellula and strampelli. | italian common wheat cultivars libellula and strampelli, grown for over three decades in gansu province of china, have shown effective resistance to stripe rust. to elucidate the genetic basis of the resistance, f(3) populations were developed from crosses between the two cultivars and susceptible chinese wheat cultivar huixianhong. the f(3) lines were evaluated for disease severity in beijing, gansu and sichuan from 2005 to 2008. joint- and single-environment analyses by composite interval mapp ... | 2009 | 19756474 |
| cloning and characterization of a wheat beta-1,3-glucanase gene induced by the stripe rust pathogen puccinia striiformis f. sp. tritici. | b-1,3-glucanases are a group of pathogenesis related proteins that have been reported to be involved in plant defense against pathogens in many other plant pathogen systems. however, it was not clear if these genes play similar role in wheat (triticum aestivum l.) against puccinia striiformis f. sp. tritici (pst), the stripe rust pathogen. to investigate the role of b-1,3-glucanase (ec3.2.1.39) in the resistance response of wheat (cv. suwon11) to stripe rust, a wheat b-1,3-glucanase gene induced ... | 2010 | 19757158 |
| mlag12: a triticum timopheevii-derived powdery mildew resistance gene in common wheat on chromosome 7al. | wheat powdery mildew is an economically important disease in cool and humid environments. powdery mildew causes yield losses as high as 48% through a reduction in tiller survival, kernels per head, and kernel size. race-specific host resistance is the most consistent, environmentally friendly and, economical method of control. the wheat (triticum aestivum l.) germplasm line nc06bgtag12 possesses genetic resistance to powdery mildew introgressed from the aagg tetraploid genome triticum timopheevi ... | 2009 | 19760389 |
| behavioural responses of the maize weevil, sitophilus zeamais, to host (stored-grain) and non-host plant volatiles. | four-arm olfactometer bioassays were conducted to assess the behavioural responses of the adult maize weevil, sitophilus zeamais (motschulsky) (coleoptera: curculionidae), to harvested seeds of host plants, i.e. white maize, yellow maize (zea mays l.) and winter wheat (triticum aestivum l.) (poaceae), and non-host plant materials, i.e. alligator pepper, aframomum melegueta (rosk) k. schum (zingiberaceae), rhizomes of ginger, zingiber officinale (roscoe) (zingiberaceae), and west african black pe ... | 2010 | 19760598 |
| wheat stripe rust resistance genes yr5 and yr7 are allelic. | stripe rust is one of the most destructive diseases of wheat. breeding for resistance is the most economical and environmentally acceptable means to control stripe rust. genetic studies on resistance sources are very important. previous inheritance studies on triticum aestivum subsp. spelta cv. album and wheat cultivar lee showed that each possessed a single dominant gene for stripe rust resistance, i.e., yr5 and yr7, respectively. both were located on the long arm of chromosome 2b, but due to t ... | 2009 | 19763533 |
| identification of a hybridization window that facilitates sizeable reductions of pollen-mediated gene flow in spring wheat. | transgenic wheat (triticum aestivum l.) with improved agronomic traits is currently being field-tested. gene flow in space is well-documented, but isolation in time has not received comparable attention. here, we report the results of a field experiment that investigated reductions in intraspecific gene flow associated with temporal isolation of flowering between t. aestivum conspecifics. pollen-mediated gene flow (pmgf) between an imazamox-resistant (ir) volunteer wheat population and a non-ir ... | 2010 | 19763864 |
| [hydrogen peroxide production in wheat leaves infected with the fungus septoria nodorum berk. strains with different virulence]. | the effect of two strains of the phytopathogenic fungus septoria nodorum berk. of different virulence on the intensity of local generation of hydrogen peroxide in common wheat leaves and the role of oxidoreductases in this process was studied. differences in the pattern of hydrogen peroxide production in wheat plants infected with high- and low-virulence pathogen strains have been found. the low-virulent s. nodorum strain caused a long-term hydrogen peroxide (h2o2) generation in the infection zo ... | 2009 | 19764620 |
| localisation of quantitative trait loci for quality attributes in a doubled haploid population of wheat (triticum aestivum l.). | selection of wheat germplasm for a range of quality traits has been a challenging exercise because of the cost of testing, the variation within testing data, and a poor understanding of the underlying genetics. the objective of this study was to identify quantitative trait loci (qtls) underlying quality traits in wheat. a doubled haploid population comprising 190 lines from chara/ww2449 was grown in two different environments and evaluated for various quality traits. a molecular map comprising 3 ... | 2009 | 19767900 |
| [the role of hormonal balance in plant adaptation to flooding]. | the effect of flooding on the growth parameters and hormonal dynamics (auxins, abscisic acid, cytokinins, gibberellins, and ethylene) has been studied in a vegetation experiment on the leaves of wheat (triticum aestivum l.) and oat (avena sativa l.). growth inhibition during flooding in both species was due to the accumulation of abscisic acid and ethylene, while the repair processes were due to the increased level of auxins, cytokinins, and gibberellins. the difference in the hormonal response ... | 2016 | 19768962 |
| identification of structural determinants for inhibition strength and specificity of wheat xylanase inhibitors taxi-ia and taxi-iia. | triticum aestivum xylanase inhibitor (taxi)-type inhibitors are active against microbial xylanases from glycoside hydrolase family 11, but the inhibition strength and the specificity towards different xylanases differ between taxi isoforms. mutational and biochemical analyses of taxi-i, taxi-iia and bacillus subtilis xylanase a showed that inhibition strength and specificity depend on the identity of only a few key residues of inhibitor and xylanase [fierens k et al. (2005) febs j 272, 5872-5882 ... | 2009 | 19769747 |
| effects of elevated co2 on grain yield and quality of wheat: results from a 3-year free-air co2 enrichment experiment. | spring wheat (triticum aestivum l. cv. triso) was grown for three consecutive seasons in a free-air carbon dioxide (co(2)) enrichment (face) field experiment in order to examine the effects on crop yield and grain quality. co(2) enrichment promoted aboveground biomass (+11.8%) and grain yield (+10.4%). however, adverse effects were predominantly observed on wholegrain quality characteristics. although the thousand-grain weight remained unchanged, size distribution was significantly shifted towar ... | 2009 | 19778369 |
| synthetic hexaploid wheat and its utilization for wheat genetic improvement in china. | synthetic hexaploid wheat (triticum turgidumxaegilops tauschii) was created to explore for novel genes from t. turgidum and ae. tauschii that can be used for common wheat improvement. in the present paper, research advances on the utilization of synthetic hexaploid wheat for wheat genetic improvement in china are reviewed. over 200 synthetic hexaploid wheat (shw) accessions from the international maize and wheat improvement centre (cimmyt) were introduced into china since 1995. four cultivars de ... | 2009 | 19782955 |
| progress of chromosome engineering mediated by asymmetric somatic hybridization. | plant somatic hybridization has progressed steadily over the past 35 years. many hybrid plants have been generated from fusion combinations of different phylogenetic species, some of which have been utilized in crop breeding programs. among them, asymmetric hybrid, which usually contains a fraction of alien genome, has received more attention because of its importance in crop improvement. however, few studies have dealt with the heredity of the genome of somatic hybrid for a long time, which has ... | 0 | 19782956 |
| research progress in bydv resistance genes derived from wheat and its wild relatives. | barley yellow dwarf virus (bydv) may cause a serious disease affecting wheat worldwide. true resistance to bydv is not naturally found in wheat. bydv resistance genes are found in more than 10 wild relative species belonging to the genera of thinopyrum, agropyron, elymus, leymus, roegneria, and psathyrostachy. through wide crosses combining with cell culture, use of ph mutants, or irradiation, 3 bydv resistance genes in th. intermedium, including bdv2, bdv3 and bdv4, were introgressed into commo ... | 2009 | 19782958 |
| utilization of blue-grained character in wheat breeding derived from thinopyrum poticum. | the blue grain trait in common wheat (triticum aestivum l., 2n=6x=42, aabbdd), which is caused by blue pigments in the aleurone layer, was originally derived from the tall wheatgrass (thinopyrum ponticum liu & wang=agropyron elongatum, 2n=10x=70, ststststeeeeebebexex) during chromosome engineering research. over the last few decades, there have been continued interests in the genetic mechanism of this blue coloration and the practical utilization of the blue aleurone character as a phenotypic ma ... | 2009 | 19782959 |
| effects of cadmium on plant growth and physiological traits in contrast wheat recombinant inbred lines differing in cadmium tolerance. | four wheat (triticum aestivum l.) lines differing in cadmium (cd) tolerance previously identified from a recombinant inbred line population were subjected to 50 microm cdcl2 from the three-leaf stage for 24 d, to investigate the responses of wheat seedlings to cd toxicity. under cd stress, most growth parameters and root morphological traits were reduced, except for secondary root numbers and average root diameter. cd enhanced leaf cell peroxidation due to increased malondialdehyde (mda) content ... | 2009 | 19783279 |
| tree-based intercropping systems increase growth and nutrient status of hybrid poplar: a case study from two northeastern american experiments. | tree-based intercropping is considered to be a potentially useful land use system for mitigating negative environmental impacts from intensive agriculture such as nutrient leaching and greenhouse gas emissions. rapid early growth of trees is critical for rapidly accruing environmental benefits provided by the trees. we tested the hypothesis that intercropping increases the growth and nutrient status of young hybrid poplars (populus spp.), compared to a harrowing alley treatment (i.e., no intercr ... | 2009 | 19783353 |
| enzymatic properties of the 20s proteasome in wheat endosperm and its biochemical characteristics after seed imbibition. | the 20s proteasome from wheat (triticum aestivum l., yangmai 158) endosperm was purified to apparent homogeneity by three sequential centrifugations and gradient page (gpage). the purified 20s proteasome clearly cleaved peptidyl-arylamide bonds in the model synthetic substrates z-ggl-amc and z-ggr-amc, which are used to reflect chymotrypsin-like and trypsin-like activity, respectively. for both substrates, the optimum ph was 8.0, but the optimum temperatures for chymotrypsin-like and trypsin-lik ... | 2009 | 19796362 |
| responses of wheat seedlings to cadmium, mercury and trichlorobenzene stresses. | the molecular response of wheat (triticum aestivum l., cv. yangmai 13) seedlings to heavy metal (cd, hg) and 1,2,4-trichlorobenzene (tcb) stresses were examined by two-dimensional gel electrophoresis, image analysis, and peptide mass fingerprinting. the results showed inhibitions of root and shoot growth by cd, hg, and tcb. these stresses led to water deficit and lipid phosphorylation in the seedling which also promoted protein phophorylation in the leaves. hg stress inhibited protein synthesis ... | 2009 | 19803087 |
| optimization of extraction of lipase from wheat seeds (triticum aestivum) by response surface methodology. | this work aimed to evaluate the effects of particle size, solid/solvent ratio (w/v), and reaction time on hydrolytic and esterification activities of a lipase extract from wheat seeds. the higher hydrolytic activity was 5.9 u/g with a particle size of 425 microm, solid/solvent ratio of 30:60 (w/v), and reaction time of 15 h, with maximum hydrolytic activity of 14.47 u/g after 24 h of precipitation. for esterification activity the best result was 57.88 u/g with a particle size of 425 microm and s ... | 2009 | 19803518 |
| pyrene effects on rhizoplane bacterial communities. | certain plant species promote biodegradation of polycyclic aromatic hydrocarbons (pahs), but few studies have examined the microbial populations that are associated with the rhizoplane of these plants. in this study, the bacterial composition of the rhizoplane were characterized for four plant species during in soils with different histories of exposure to pah and in the presence or absence of a pyrene spike at 100 mg kg(-1) pyrene. three of the plant species including andropogon gerrardii, pani ... | 2009 | 19810358 |
| wheat quality related differential expressions of albumins and globulins revealed by two-dimensional difference gel electrophoresis (2-d dige). | comparative proteomics analysis offers a new approach to identify differential proteins among different wheat genotypes and developmental stages. in this study, the non-prolamin expression profiles during grain development of two common or bread wheat cultivars (triticum aestivum l.), jing 411 and sunstate, with different quality properties were analyzed using two-dimensional difference gel electrophoresis (2-d dige). five grain developmental stages during the post-anthesis period were sampled c ... | 2009 | 19815103 |
| influence of the production method on phytochemical concentrations in whole wheat (triticum aestivum l.): a comparative study. | the present study was performed to evaluate the concentrations of phytochemicals (carotenoids and phenolic acids) in wheat varieties grown under comparable organic and conventional conditions over three years as part of a long-term field trial. phenolic acids of the hydroxybenzoic acid and hydroxycinnamic acid group were quantified by hplc-dad after extraction as free, soluble conjugated, and bound forms. furthermore, the carotenoids lutein and zeaxanthin were determined by hplc-dad. there were ... | 2009 | 19817369 |
| drought-induced changes in photosynthetic membranes of two wheat (triticum aestivum l.) cultivars. | two wheat (triticum aestivum l.) cultivars contrasting in architectonics and differing in drought resistance, azamatli-95 (short stature, vertically oriented small leaves, drought-tolerant) and giymatli-2/17 (short stature, broad and drooping leaves, drought-sensitive), were studied. it was found that the content of cp i (115 kda) and 63-kda apoprotein p700 and also lhc ii polypeptides increases slightly in the drought-resistant cv. azamatli-95 under extreme water supply limitation, while their ... | 2009 | 19817691 |
| ammonium nitrate improves direct somatic embryogenesis and biolistic transformation of triticum aestivum. | triticum aestivum is of major importance both nutritionally and economically. introduction of new genes has been difficult to apply to elite wheat varieties mainly as a result of their recalcitrance to prerequisite tissue culture. we attempted to improve the frequency of wheat transformation by exposing plants to high level of ammonium nitrate. our experiments showed that modification of the ammonium nitrate content in the direct somatic embryogenesis induction medium can increase the number of ... | 2009 | 19818315 |
| adaptive evolution of chloroplast genomes in ancestral grasses. | the grass family, poaceae, is one of the most successful families among angiosperms. although it has long been suggested that the chloroplast genomes of the poaceae have undergone an elevated evolutionary rate compared to other angiosperms, little was known about the details of this phenomenon. by using chloroplast genome data from 31 seed plants species, we recently showed that episodic rate acceleration occurred in the common ancestral branch of the core poaceae (a clade formed by rice oryza s ... | 2009 | 19820316 |
| homoeologous recombination within bread wheat to develop novel combinations of hmw-gs genes: transfer of the glu-a1 locus to chromosome 1d. | in an attempt to improve the bread-making quality within hexaploid wheat by elaborating novel high-molecular weight glutenin subunits (hmw-gs) combinations useful in wheat-breeding programmes, a 1a chromosome fragment carrying the glu-a1 locus encoding the subunit ax2*, was translocated to the long arm of chromosome 1d. the partially isohomoeoallelic line, designated rr239, had a meiotic behaviour as regular as cv. courtot. it was characterised using genomic in situ hybridization and microsatell ... | 2009 | 19820963 |
| inter- and intra-genomic transfer of small chromosomal segments in wheat-rye allopolyploids. | newly synthesized wheat-rye allopolyploids, derived from triticum aestivum mianyang11 x s. cereale kustro, were investigated by sequential fluorescent in situ hybridization (fish) and genomic in situ hybridization (gish) using rye tandem repeat psc200 and rye genomic dna as probes, respectively, over the first, second and third allopolyploid generations. fish signals of psc200 could be observed at both telomeres/subtelomeres of all 14 chromosomes of the parental rye. in the first allopolyploid g ... | 2010 | 19821008 |
| identification of genes involved in stem rust resistance from wheat mutant d51 with the cdna-aflp technique. | wheat (triticum aestivum l.) stem rust caused by puccinia graminis f. sp. tritici is one of the main diseases of wheat worldwide. wheat mutant line d51, which was derived from the highly susceptible cultivar l6239, shows resistance to the prevailing races 21c3cph, 21c3ckh, and 21c3ctr of p. graminis f. sp. tritici in china. in this study, we used the cdna-aflp technology to identify the genes that are likely involved in the stem rust resistance. ecori/msei selective primers were used to generate ... | 2010 | 19821052 |
| genetic behavior of controlling area under disease progress curve for stripe rust (puccinia striiformis f. sp. tritici) in two wheat (triticum aestivum) crosses. | genetic effects on controlling resistance to stripe rust (puccinia striiformis f. sp. tritici eriksson)were determined in two wheat crosses, bakhtawar-92 (b-92) x frontana and inqilab-91 x fakhre sarhad using area under the disease progress curve (audpc) as a measure of stripe rust resistance. the resistant and susceptible parents involved in developing genetic populations were identified by initial assessment of 45 wheat accessions for stripe rust reaction. mixed inheritance model was applied t ... | 2009 | 19821730 |
| [features of the regulation of meiotic restitution in androgenic haploids of wheat-rye substitution lines 2r(2d)1, 2r(2d)3, and 6r(6a) (triticum aestivum l., cultivar saratovskaya 29/secale cereale l., cultivar onokhoiskaya)]. | regulation of meiotic restitution in androgenic haploids generated by cultivation of isolated pollinators of three wheat-rye substitution lines 2r(2d)1, 2r(2d)3, and 6r(6a) (triticum aestivum l., cultivar saratovskaya 29/secale cereale l., cultivar onokhoiskaya) was studied. the presence of rye chromosomes and the absence of homeologous wheat chromosomes in the haploid plant genome was shown to cause meiotic restitution, as observed in the case of androgenic haploids 6r(6a), or to inhibit in--in ... | 2009 | 19824541 |
| [a search for high-molecular-weight subunits of glutenin from triticum timopheevi zhuk. in the lines of common wheat (triticum aestivum l. x triticum timopheevi zhuk.)]. | the study is a continuation of investigation of prolamins in brown rust-resistant introgressive lines of common wheat, produced with participation of triticum timopheeevi zhuk. two wheat lines with a substitution of the glu-1 loci of t. timopheevi were identified. line 684 had high-molecular-weight glutenin subunits encoded by 1ax, as well as by 1ay gene, which was silent in commercial lines. it was demonstrated that line 684 could serve as a source of the glu-at1 locus. line 186 carried the glu ... | 2009 | 19824551 |
| characterization of the primary cell walls of seedlings of brachypodium distachyon--a potential model plant for temperate grasses. | the genome of brachypodium distachyon, also known as purple false brome, was fully sequenced in 2008 largely in response to the demand for a model plant for temperate grasses. a comparative study of the primary cell walls of seedlings of b. distachyon, hordeum vulgare and triticum aestivum was carried out. the cell walls of the three species were characterized by similar relative levels of, and developmental changes in, hemicelluloses. the occurrence of (1,3;1,4)-beta-d-glucans was correlated wi ... | 2010 | 19828160 |
| nucleotide polymorphism in the wheat transcriptional activator spa influences its pattern of expression and has pleiotropic effects on grain protein composition, dough viscoelasticity, and grain hardness. | storage protein activator (spa) is a key regulator of the transcription of wheat (triticum aestivum) grain storage protein genes and belongs to the opaque2 transcription factor subfamily. we analyzed the sequence polymorphism of the three homoeologous spa genes in hexaploid wheat. the level of polymorphism in these genes was high particularly in the promoter. the deduced protein sequences of each homoeolog and haplotype show greater than 93% identity. two major haplotypes were studied for each s ... | 2009 | 19828671 |
| responses of wheat seedlings to exogenous selenium supply under cold stress. | dose-dependent effects of selenium on growth and physiological trait of wheat seedlings (triticum aestivum l. cv han no.7086) exposed to cold stress are reported. responses of seedlings were different depending on the se concentration. the treatments with 0.5 and 1.0 mg se kg(-1) significantly increased biomass and chlorophyll content of seedlings. however, the treatments at 2.0 and 3.0 mg se kg(-1) only induced an evident increase in chlorophyll content and did not promote biomass accumulation ... | 2010 | 19830391 |
| [exploring novel hyperspectral band and key index for leaf nitrogen accumulation in wheat]. | the objectives of the present study were to explore new sensitive spectral bands and ratio spectral indices based on precise analysis of ground-based hyperspectral information, and then develop regression model for estimating leaf n accumulation per unit soil area (lna) in winter wheat (triticum aestivum l.). three field experiments were conducted with different n rates and cultivar types in three consecutive growing seasons, and time-course measurements were taken on canopy hyperspectral reflec ... | 2009 | 19839336 |
| structural and expressional analysis of the b-hordein genes in tibetan hull-less barley. | the b-hordein gene family was analyzed from two tibetan hull-less barley cultivars z09 and z26 (hordeum vulgare subsp. vulgare). fourteen b-hordein genes, designated bz09-2 to bz09-5 (from z09) and bz26-1 to bz26-10 (from z26), were sequenced. seven of them, similar to a previously reported bz09-1 from z09, were predicted to encode putative active proteins each with a signal peptide, a repetitive domain, and a c-terminal region; seven of them were predicted to be pseudogenes. the b-hordein gene ... | 2010 | 19856114 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| [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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| [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 |
| [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 |
| 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 |
| [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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| [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 |