Publications

cytoplasmic genome substitution in wheat affects the nuclear-cytoplasmic cross-talk leading to transcript and metabolite alterations.	alloplasmic lines provide a unique tool to study nuclear-cytoplasmic interactions. three alloplasmic lines, with nuclear genomes from triticum aestivum and harboring cytoplasm from aegilops uniaristata, aegilops tauschii and hordeum chilense, were investigated by transcript and metabolite profiling to identify the effects of cytoplasmic substitution on nuclear-cytoplasmic signaling mechanisms.	2013	24320731
structural-functional dissection and characterization of yield-contributing traits originating from a group 7 chromosome of the wheatgrass species thinopyrum ponticum after transfer into durum wheat.	for the first time, using chromosome engineering of durum wheat, the underlying genetic determinants of a yield-improving segment from thinopyrum ponticum (7agl) were dissected. three durum wheat-th. ponticum near-isogenic recombinant lines (nirls), with distal portions of their 7al arm (fractional lengths 0.77, 0.72, and 0.60) replaced by alien chromatin, were field-tested for two seasons under rainfed conditions. yield traits and other agronomic characteristics of the main shoot and whole plan ...	2014	24319256
management of herbicide resistance in wheat cropping systems: learning from the australian experience.	herbicide resistance continues to escalate in weed populations infesting global wheat (triticum aestivum l.) crops, threatening grain production and thereby food supply. conservation wheat production systems are reliant on the use of efficient herbicides providing low-cost, selective weed control in intensive cropping systems. the resistance-driven loss of herbicide resources combined with limited potential for new herbicide molecules means greater emphasis must be placed on preserving existing ...	2014	24318955
the α-gliadin genes from brachypodium distachyon l. provide evidence for a significant gap in the current genome assembly.	brachypodium distachyon, is a new model plant for most cereal crops while gliadin is a class of wheat storage proteins related with wheat quality attributes. in the published b. distachyon genome sequence databases, no gliadin gene is found. in the current study, a number of gliadin genes in b. distachyon were isolated, which is contradictory to the results of genome sequencing projects. in our study, the b. distachyon seeds were found to have no gliadin protein expression by gel electrophoresis ...	2014	24318766
characterization of drought resistance in a wild relative of wheat, triticum kotschyi.	wild relatives of wheat have served as a genetic source for economically useful traits. a better understanding of the mechanisms underlying such traits may be useful in the genetic transfer and selection processes. research was undertaken to compare the effects of controlled water stress on photosynthetic parameters in triticum kotschyi, a drought resistant wild wheat and triticum aestivum cv. lakhish, a drought sensitive wheat cultivar. during stress development, the leaf water potential decrea ...	1993	24318681
effects of polyploidy on photosynthesis.	in polyploid plants the photosynthetic rate per cell is correlated with the amount of dna per cell. the photosynthetic rate per unit leaf area is the product of the rate per cell times the number of photosynthetic cells per unit area. therefore, the photosynthetic rate per unit leaf area will increase if there is a less than proportional increase in cell volume at higher ploidal levels, or if cell packing is altered to allow more cells per unit leaf area. in autopolyploids (medicago sativa, c3 s ...	1993	24318680
seed germination, root elongation, root-tip mitosis, and micronucleus induction of five crop plants exposed to chromium in fluvo-aquic soil.	the present study aimed to determine the toxic effects of chromium (cr) on cabbage (brassica oleracea), cucumber (cucumis sativus), lettuce (lactuca sativa), wheat (triticum aestivum), and corn (zea mays), and identify the sensitive plant species and appropriate bioassays for potential use in phytotoxicity assessment of cr in soil. results showed that seed germination might not be a sensitive assay for assessing cr toxicity because at most of the cr levels there were no toxic effects. root elong ...	2014	24318542
fractionation and characterization of histones from barley (hordeum vulgare) leaves : existence of multiple h2a and h2b variants.	histones were extracted from purified nuclei isolated from four cereals,viz. barley (hordeum vulgare), wheat(triticum aestivum), aegilops squarrosa and corn (zea mais), and from tobacco (nicotiana tabacum). analysis of the histones on sds gels showed complex electrophoretic patterns with one species of both h3 and h4, one to three species of h1 and two to five species of h2. judged from the electrophoretic patterns, the histones from barley, wheat and aegilops are identical but different from th ...	1983	24318303
linear differentation of cereal chromosomes : iii. rye, triticale and 'aurora' variety.	the bsg test was used in an investigation of the linear differentiation in rye variety 'zhitkinskaya', common wheat variety 'aurora' and two secondary triticale namely ad-196 and f-1239.chromosomes of 'aurora' variety and wheat chromosomes within triticale may be easily divided into "constant" and 'variable' chromosomes as described previously (lordansky et al. 1977; zurabishvili et al 1977).it is necessary to emphasize that the diversity of "variable" chromosomes underlies karyotypical polymorp ...	1978	24317902
linear differentiation of cereal chromosomes : i. common wheat and its supposed ancestors.	using the giemsa technique of differential staining (the bsg test), we have studies the karyotypes and constructed the idiograms of t. aestivum l. var. 'diamant' and 'chinese spring', t. monococcum l. v. 'hornemannii' ssp. roles occidentali georgicum dek., aegilops squarrosa l. v. 'meeyeri', t. aestivum. the karyotypes of 'chinese spring' and 'diamant' differ drastically both in total structural heterochromatin content and its localization on the nine morphologically homeologous chromosomes. the ...	1978	24317744
effectiveness of ph gene in inducing homoeologous chromosome pairing in agrotricum.	we observed pairing, when the ph gene was present, between wheat (triticum aestivum l. em. thell.) chromosome 4b, and an agropyron intermedium (host) beauv. chromosome (ai) carrying a gene resistant to wheat streak mosaic (wsm). in a monosomic addition polyhaploid [2n = 22 = 19' + 5b' (ph) + 4b' + ai'], we recorded an average of 4.1 bivalents and 0.3 trivalents per cell. induced homoeologous pairing was most effective when both 5b chromosomes carrying ph gene were present. our data suggest that ...	1977	24317691
assessment of genomic and species relationships in triticum and aegilops by page and by differential staining of seed albumins and globulins.	endosperm protein components from common bread wheats (triticum aestivum l.) and related species were extracted with aluminum lactate, ph 3.2, and examined by electrophoresis in the same buffer. electrophoretic patterns of the albumins and globulins were compared to evaluate the possibility that a particular species might have contributed its genome to tetraploid or hexaploid wheat. together with protein component mobilities, differential band staining with coomassie brilliant blue r250 was empl ...	1978	24317663
a survey for isoenzymes of glucosephosphate isomerase, phosphoglucomutase, glucose-6-phosphate dehydrogenase and 6-phosphogluconate dehydrogenase in c3-, c 4-and crassulacean-acid-metabolism plants, and green algae.	two isoenzymes each of glucosephosphate isomerase (ec 5.3.1.9), phosphoglucomutase (ec 2.7.5.1), glucose-6-phosphate dehydrogenase (ec 1.1.1.49) and 6-phosphogluconate dehydrogenase (ec 1.1.1.43) were separated by (nh4)2so4 gradient solubilization and deae-cellulose ion-exchange chromatography from green leaves of the c3-plants spinach (spinacia oleracea l.), tobacco (nicotiana tabacum l.) and wheat (triticum aestivum l.), of the crassulacean-acid-metabolism plants crassula lycopodioides lam., b ...	1979	24317570
stability analysis over various filial generations in bread wheat.	stability analysis on 7 parent varieties and all their possible crosses (excluding reciprocals) in generations f1 to f5 are reported. the regression coefficient (b) of the parents ranged from 0.66 ('sonalika') to 1.34 ('kalyansona'). on the average the 'b' value was lower in f3 (.87) and f2 (.88) followed by f1 (1.04), f4 (1.06) and f5 (1.16). phenotypic stability appeared to be associated with genetic constitution of the parents as well as level of heterozygosity and heterogeneity of the popula ...	1977	24317537
inheritance of five quantitative characters of bread wheat.	heritability estimates of five characters of the wheat plant were studied in five crosses involving six cultivars of bread wheat. parents, f1, f2 and backcrosses to both parents were used in the estimation of the genetic parameters.heritability was low for number of fertile spikes/plant, moderate for number of spikelets/spike, number of kernels/spike, 1000-kernel weight and moderately high for number of kernels/spike. evidence for mainly nonadditive gene effects were observed in the expression o ...	1978	24317412
molecular characterization of vernalization and response genes in bread wheat from the yellow and huai valley of china.	flowering time greatly influences the adaptation of wheat cultivars to diverse environmental conditions and is mainly controlled by vernalization and photoperiod genes. in wheat cultivars from the yellow and huai valleys, which represent 60%-70% of the total wheat production in china, the large-scale genotyping of wheat germplasms has not yet been performed in terms of vernalization and photoperiod response alleles, limiting the use of chinese wheat germplasms to a certain extent.	2013	24314021
effectiveness of selection under different mating systems for the improvement of protein content in wheat (triticum aestivum l. em thell.).	the effectiveness of selection for the improvement of protein content under random intermating (recurrent selection) and selfing series (pedigree selection) was evaluated in a cross of winter and spring wheats, 'atlas 66' × 'hd 1977'. selection of 10 per cent high protein families resulted in an increase of 3.25 per cent and 4.30 per cent of the mean of checks through pedigree and recurrent selection, respectively. the mean protein differences in both methods were not significant. the increase i ...	1978	24311345
study on induced mutants resembling commercial varieties in bread wheat.	the occurrence of variants with phenotypic resemblance to the existing cultivated varieties of wheat, such as 'sonalika', 'arjun' and 'kalyansona', evolved by hybridisation, has been found in various generations of the mutagen-treated populations of the variety 'zaafrane'. the repetition and involvement of common genes in certain genotypes in the evolutionary history of these varieties is attributed to the induction of such intervarietal mutants.it is shown that selective reconstruction of a par ...	1978	24311344
basic studies on hybrid wheat breeding : viii. a new male sterility-fertility restoration system in common wheat utilizing the cytoplasms of aegilops kotschyi and ae. variabilis.	the nuclei of 12 common wheats (genome constitution aabbdd) were placed into the cytoplasms of aegilops kotschyi and ae. variabilis (both c(u)c(u)s(v)s(v)) by repeated backcrosses. using these nucleus-cytoplasm hybrids, male sterility-fertility restoration relationship was investigated. male sterility was expressed by these cytoplasms only in slm, splt and mch. the other nine common wheat nuclei gave normal fertility against these cytoplasms. these cytoplasms were compared with the triticum timo ...	1979	24310337
nitrogen redistribution during grain growth in wheat (triticum aestivum l.) : i. peptide hydrolase activity and protein breakdown in the flag leaf, glumes and stem.	the activity of a range of endo- and exopeptidase enzymes have been measured in the glumes, flag leaf and stem during the period of grain development in wheat. the enzymes show a sequential pattern of appearance with activity peaks occurring at a number of intervals from anthesis until just prior to the cessation of grain growth. of the enzymes studied only the haemoglobin- and casein-degrading activity and alanylglycine-dipeptidase activity increased during the period of rapid protein loss, whi ...	1980	24310182
cuticular wax of wheat : the effects of chromosomal deficiencies on the biosynthesis of wax components.	n-alkanes, esters, aldehydes, free alcohols, β-diketones and hydroxy-β-diketones were found to be the lipid components of the cuticular waxes of common wheat chinese spring (triticum aestivum l.). the ditelosomic lines 7a-l and 7d-s showed a dramatic decrease in the amount of β-diketones and hydroxy β-diketones which are reduced to traces. the homologue composition within each class of compounds has also been determined for all three of the lines of wheat. the effects of chromosomal deficiencies ...	1980	24310134
multiple heat priming enhances thermo-tolerance to a later high temperature stress via improving subcellular antioxidant activities in wheat seedlings.	seedlings of winter wheat (triticum aestivum l.) were firstly twice heat-primed at 32/24 °c, and subsequently subjected to a more severe high temperature stress at 35/27 °c. the later high temperature stress significantly decreased plant biomass and leaf total soluble sugars concentration. however, plants experienced priming (ph) up-regulated the rubisco activase b encoding gene rcab, which was in accordance with the higher photosynthesis rate in relation to the non-primed plants (nh) under the ...	2014	24308988
early competition shapes maize whole-plant development in mixed stands.	mixed cropping is practised widely in developing countries and is gaining increasing interest for sustainable agriculture in developed countries. plants in intercrops grow differently from plants in single crops, due to interspecific plant interactions, but adaptive plant morphological responses to competition in mixed stands have not been studied in detail. here the maize (zea mays) response to mixed cultivation with wheat (triticum aestivum) is described. evidence is provided that early respon ...	2014	24307719
comparison of soil and foliar zinc application for enhancing grain zinc content of wheat when grown on potentially zinc-deficient calcareous soils.	the concentration of zn and phytic acid in wheat grain has important implications for human health. we conducted field and greenhouse experiments to compare the efficacy of soil and foliar zn fertilisation in improving grain zn concentration and bioavailability in wheat (triticum aestivum l.) grain grown on potentially zn-deficient calcareous soil.	2014	24307341
genes in diploid triticinae compensating for the low temperature regulating gene ltp in chromosome 5d of triticum aestivum.	hybrids of triticum aestivum (monosomic 5d or ditelosomic 5dl) x t. speltoides (= ae. speltoides) showed that the genotype of t. speltoides carries gene(s) which can partially compensate for the expected decrease in chromosome association at low temperatures (10°c) in the absence of chromosome 5d. in hybrids of t. aestivum (normal, ditelosomic 3dl or ditelosomic 3dl-monosomic 5d) x t. longissimum (= ae. sharonensis), this compensation was not observed.in normal f1 hybrids of t. durum x t. longis ...	1979	24306716
the evaluation of horizontal resistance of winter wheats by the 'center pivot' method.	twenty bread wheat varieties were sown in forty meter long plots and infected with a mixture of three races of stem rust (14, 34, 311) in the center-pivot design. the epidemic's development and its effect on yield (factors) were studied in an experiment.with the center-pivot method we modelled the natural processes without chemicals. the epidemic's development and the processes connected with it can be studied quantitatively as well as by subjective evaluation.some of the studied genotypes were ...	1979	24306715
molecular characterisation and evolution of hmw glutenin subunit genes in brachypodium distachyon l.	brachypodium distachyon, a small wild grass within the pooideae family, is a new model organism for exploring the functional genomics of cereal crops. it was shown to have close relationships to wheat, barley and rice. here, we describe the molecular characterisation and evolutionary relationships of high molecular weight glutenin subunits (hmw-gs) genes from b. distachyon. sodium dodecyl sulphate-polyacrylamide gel electrophoresis (sds-page), high performance capillary electrophoresis (hpce) an ...	2014	24306693
an in vivo analysis of photosynthesis during short-term o3 exposure in three contrasting species.	the depressions of photosynthetic co2 uptake following o3 exposures of 200 and 400 nmol mol(-1) for between 4 and 16 h were compared between pisum sativum, quercus robur and triticum aestivum, and the potential causes of change identified in vivo. photosynthetic change was examined by analysis of co2, o2, o3 and water vapour exchanges together with chlorophyll fluorescence in controlled environments. under identical fumigation conditions, each species showed very similar rates of o3 consumption. ...	1995	24306634
sequence analysis of vicia faba highly repeated dna: the bamhi repeated sequence families.	cleavage of vicia faba nuclear dna with the restriction endonuclease bamhi yielded discrete size classes of 250, 850, 900, 990, 1 150, 1 500 and 1 750 bp of highly repetitive dna. each of these sequence families comprised about 3% of the total genomic dna. some sequence members from each sequence family were cloned in pbr322 and their primary structures determined. computer analyses of nucleotide sequences suggested the existence of about 60 bp sequence periodicity within the repeating unit of t ...	1985	24306539
peroxidase activities in relation to plant height and grain weight in bread wheat (triticum aestivum l.).	the relationship of peroxidase activity with plant height and grain weight has been studied in seven different varieties of bread wheat belonging to diverse genotypes, and their f1 crosses. the association between plant height and peroxidase activity was highly significant and negative. based on the similarity index values of peroxidase isoenzymes, the seven wheat genotypes could be classified into two groups: the first group consisting of triple and quadruple dwarf varieties and the other of ta ...	1979	24306490
combining ability analysis over f1-f 5 generations in diallel crosses of bread wheat.	combining ability studies for grain yield and its primary component traits in diallel crosses involving seven diverse wheat cultivars of bread wheat (triticum aestivum l.) over generations f1-f5 are reported. the general and specific combining ability variances were significant in all generations for all the traits except specific combining ability variance for number of spikes per plant in the f5. the ratio of general to specific combining ability variances was significant for all the traits ex ...	1979	24306488
the chromosomal location of peroxidase isozymes of the wheat kernel.	the analysis of the individual parts of the triticum aestivum l. kernel yields a total of 11 peroxidase isozymes: m, n, a, c, d1, d, d2, e, f, g and h (in order from faster to slower migration). isozymes a, c and d are found in the endosperm (ed) and seed coats (c), while m, n, d1, d2, e, f, g and h are peculiar to the embryo and scutellum (e + s). the use of the nullitetrasomic and ditellosomic series of 'chinese spring' wheat allows peroxidase isozymes to be associated with specific chromosome ...	1979	24306487
genetic analysis and molecular mapping of crown rust resistance in common wheat.	this is the first report on genetic analysis and genome mapping of major dominant genes for near non-host resistance to barley crown rust ( puccinia coronata var. hordei ) in common wheat. barley crown rust, caused by puccinia coronata var. hordei, primarily occurs on barley (hordeum vulgare l.) in the great plain regions of the united states. however, a few genotypes of common wheat (triticum aestivum l.) were susceptible to this pathogen among 750 wheat accessions evaluated. to investigate the ...	2014	24306320
high-resolution analysis of a qtl for resistance to stagonospora nodorum glume blotch in wheat reveals presence of two distinct resistance loci in the target interval.	stagonospora nodorum glume blotch (sng), caused by the necrotrophic fungus stagonospora nodorum, is one of the economically important diseases of bread wheat (triticum aestivum l.). resistance to sng is known to be quantitative and previous studies of a recombinant inbred line (ril) population identified a major quantitative trait locus (qtl) for resistance to sng on the short arm of chromosome 3b. to localize this qtl (qsng.sfr-3bs) with high resolution, we constructed a genetic map for the qtl ...	2014	24306318
nitrogen redistribution during grain growth in wheat (triticum aestivum l.) : ii. chloroplast senescence and the degradation of ribulose-1,5-bisphosphate carboxylase.	the flag leaf of wheat was examined for changes in quantity and activity of ribulose-bisphosphate carboxylase (rubpcase; ec 4.1.1.39), in the proteolytic degradation of rubpcase and other native proteins, and in the ultrastructure of the leaf cells during grain development. proteolytic degradation of rubpcase at ph 4.8 increased until 8-10 d after anthesis, then declined, and increased again 16-18 d after anthesis. the second peak coincided with the onset of a preferential loss of immunologicall ...	1980	24306293
production of trigeneric (barley × wheat) × rye hybrids.	rye (secale cereale cv. prolific 2n=14 and 2n =14 + 2b was crossed onto hybrids between barley (hordeum vulgare 2n = 14) and wheat (triticum aestivum 2n= 42). pollinated florets were injected with ga3 to promote fertilization and hybrid embryo development. at 16 days after pollination the watery caryopses were removed, embryos dissected and cultured on a modified b5 medium. approximately 20% of the cultured embryos produced both roots and coleoptile and developed into viable seedlings. viable se ...	1980	24305857
the effect of b-chromosomes of rye on the chromosome association in f1 hybrids triticum aestivum x secale cereale in the absence of chromosomes 5b or 5d.	t. aestivum var. 'chinese spring' (monosomic 5b and 5d, respectively) was crossed with s. cereale (with and without b-chromosomes). the resulting nullisomic 5b hybrids exhibited a high degree of chromosome association both at 20°c and 10°c. the presence of b-chromosomes reduced association slightly whether 5b was present or not.in nullisomic 5d hybrids b-chromosomes of rye raise chromosome association at 20°c when compared to hybrids with 5d, with as well as without, b's. at 10°c, due to the abs ...	1980	24305853
new cytoplasmic male sterility sources in common wheat: their genetical and breeding considerations.	nuclei from triticum aestivum l. cultivars 'penjamo 62' and 'siete cerros 66' were introduced into the cytoplasms of different species of aegilops and some subspecies (varieties) of t. dicoccoides by backcrossing. the sterile alloplasmic lines obtained were compared with the normal cultivars used as the recurrent pollen parents. according to the cytoplasmic effect, these cytoplasms were subdivided into three main groups. the first group possesses c(u) type cytoplasm, the second one possesses m t ...	1980	24305794
metabolism of 2,4-dichlorophenoxyacetic acid in cell suspension cultures of soybean (glycine max l.) and wheat (triticum aestivum l.) : ii. evidence for incorporation into lignin.	cell suspension cultures of soybean (glycine max l.) and wheat (triticum aestivum l.) incorporated 2,4-dichlorophenoxyacetic acid (2,4-d) into a metabolite fraction which was insoluble in ethanol, water, and hot sodium dodecylsulphate. further treatment with hot dimethylformamide solubilized a material which by the following criteria appeared to consist of 2,4-d derivatives covalently bound to lignin: i) co-chromatography of radioactivity and of uv-absorbing material upon gel permeation chromato ...	1981	24302424
metabolism of 2,4-dichlorophenoxyacetic acid in cell suspension cultures of soybean (glycine max l.) and wheat (triticum aestivum l.) : i. general results.	the metabolism of [2-(14)c]- and [ring-u-(14)c]2,4-dichlorophenoxyacetic acid (2,4-d) has been studied in cell suspension cultures of soybean (glycine max l.) and wheat (triticum aestivum l.). 2,4-d was extensively metabolized by both cultures, the rates of metabolism and the metabolite patterns remaining constant over at least 60 (soybean) and 25 (wheat) growth cycles. amino acid conjugates were the predominant metabolite fraction in soybean cells whereas β-d-glucoside conjugates predominated i ...	1981	24302423
role of atp in nitrite reduction in roots of wheat and pea.	excised wheat (triticum aestivum l.) and field pea (pisum arvense l.) roots, incubated under anaerobic conditions or in the presence of uncouplers of oxidative phosphorylation [2,4-dinitrophenol (dnp), carbonylcyanide-m-chlorophenylhydrazone, pentachlorophenol] accumulated nitrite as a result of an inhibition of nitrite reduction. in isolated root plastids, nitrite reduction was dependent on a supply of glucose-6-phosphate (g6p) and did not require atp. the estimated km value for glucose 6-phosp ...	1981	24302420
allelopathic effect of parthenium (parthenium hysterophorus l.) extract and residue on some agronomic crops and weeds.	allelopathic effects of entire shoot extract, plant part extracts, and shoot residue of parthenium (parthenium hysterophorus l.) on corn (zea mays l.), ryegrass (lolium multiflorum lam.), wheat (triticum aestivum l.), velvetleaf (abutilon theophrasti medik.), and soybean [glycine max (l) merr.] growth were examined. parthenium shoot contained water-soluble materials that were toxic to root growth of velvetleaf and wheat. at 4% (w/ v) concentration, root growth of velvetleaf and wheat were reduce ...	1987	24302341
nitrogen redistribution during grain growth in wheat (triticum aestivum l.) : iii. enzymology and transport of amino acids from senescing flag leaves.	the technique of edta-enhanced phloem exudation (king and zeevaart, 1974: plant physiol. 53, 96-103) was evaluated with respect to the collection and identification of amino acids exported from senescing wheat leaves. whilst the characteristics of the exudate collected conform with many of the accepted properties of phloem exudate, unexpectedly high molar proportions of phenylalanine and tyrosine were observed. by comparing exudation into a range chelator solutions with exudation into water, the ...	1981	24302110
the manipulation of polar head group composition of phospholipids in the wheat miranovskaja 808 affects frost tolerance.	caryopses of the frost-resistant cultivar of the wheat triticum aestivum l., miranovskaja 808, were germinated and grown in the presence of various concentrations of choline chloride. changes in the composition of leaf total phospholipids and leaf total fatty acids at two extreme temperatures (25°c and 2°c) as well as changes in frost resistance were followed. a choline chloride concentration-dependent accumulation of phosphatidyl choline was observed in the leaves. seedlings grown at 2°c accumu ...	1981	24301717
integration of photosynthetic carbon and nitrogen metabolism in higher plants.	concomitant assimilation of c and n in illuminated leaves requires the regulated partitioning of reductant and photosynthate to sustain the demands of amino acid and carbohydrate biosynthesis. the short-term responses of photosynthesis and photosynthate partitioning to n enrichment in wheat (triticum aestivum, l.) and maize (zea mays l.) leaves were studied in order to understand the regulatory strategy employed in higher plants. transgenic tobacco plants (tobacco plumbaginifolia) over-expressin ...	1995	24301574
genotypic effects of the maternal tissues of wheat on its grain weight.	reciprocal crosses were made between semi dwarf spring wheat cultivars (triticum aestivum l.) differing in grain weight. the weights of the f1 grains (on maternal spikes), from intact as well as from defoliated plants, and those of the f2 grains (on f1 spikes), were examined. grain weight was controlled primarily by the genotype of the maternal tissues (pericarp, testa or other floret or spikelet organs, including the vascular system), with complete dominance of heaviness. no indications suggest ...	1980	24301501
the interactive effects of elevated co2 and o 3 concentration on photosynthesis in spring wheat.	this study investigated the interacting effects of carbon dioxide and ozone on photosynthetic physiology in the flag leaves of spring wheat (triticum aestivum l. cv. wembley), at three stages of development. plants were exposed throughout their development to reciprocal combinations of two carbon dioxide and two ozone treatments: [co2] at 350 or 700 μmol mol(-1), [o3] at < 5 or 60 nmol mol(-1). gas exchange analysis, coupled spectrophotometric assay for rubisco activity, and sds-page, were used ...	1995	24301477
f1 hybrid versus 32 selected f7 lines performance of common winter wheat (triticum aestivum ssp. vulgare).	one f1 common wheat hybrid ('zlatna dolina' x 'primépi') which had exhibited significant heterosis in a previous study was compared with 32 f7 lines selected from the same cross. the yield test was planted in the 1976-1977 season at two locations: zagreb, yugoslavia (optimal environment) and hutchinson, kansas, usa (stress environment). the purpose of this experiment was to determine if a homozygous segregant superior to the f1 hybrid could be obtained from the same cross combination.heading dat ...	1980	24301286
population divergence in the wheat leaf rust fungus puccinia triticina is correlated with wheat evolution.	co-evolution of fungal pathogens with their host species during the domestication of modern crop varieties has likely affected the current genetic divergence of pathogen populations. the objective of this study was to determine if the evolutionary history of the obligate rust pathogen on wheat, puccinia triticina, is correlated with adaptation to hosts with different ploidy levels. sequence data from 15 loci with different levels of polymorphism were generated. phylogenetic analyses (parsimony, ...	2014	24301080
protection of growth in response to 28-homobrassinolide under the stress of cadmium and salinity in wheat.	this study examines the impact of 28-homobrassinolide (hbl) in alleviating the effects of cadmium (cd) and salinity (nacl) on wheat plants solely and against the synergy. the surface sterilized seeds of triticum aestivum cv. pbw-373 were sown in the soil amended either with salinity or cadmium or both. the foliage in was sprayed at 20d after sowing (das) both in stressed and non-stressed plants. the spray of hbl at 20 das increased almost all the parameters while decreased the h2o2 content and l ...	2014	24296402
quality characteristics of bread produced from wheat, rice and maize flours.	rice (oryza sativa) flour and maize (zea mays) meal substitution in wheat (triticum aestivum) flour, from 0 to 100% each, for the production of bread was investigated. the proximate analysis, pasting properties, bread making qualities of raw materials and sensory evaluation of the bread samples were determined. the pasting temperature increased with increased percentage of rice flour and maize meal. but the other pasting characters decreased with the higher proportion of rice flour. the baking a ...	2012	24293700
effect of blends of dehydrated green pea flour and amaranth seed flour on the rheological, microstructure and pasta making quality.	effect of dehydrated green pea flour (dgpf) and additives like glycerol mono stearate (gms), sodium stearoyl lactylate (ssl) and dry gluten on the rheological characteristics and pasta making quality made from indian triticum aestivum was studied. 5-10% of amaranth seed flour was used in the formulation to enhance the protein and fiber contents of the product. increase in dgpf from 0 to 30% decreased the maximum consistency values from 550 to 513 fu, whereas the mixing tolerance index values dec ...	2012	24293690
transformation of common wheat (triticum aestivum l.) with avenin-like b gene improves flour mixing properties.	avenin-like b proteins may contribute to the viscoelastic properties of wheat dough via inter-chain disulphide bonds, due to their rich cysteine residues. in order to clarify the effect of the avenin-like b proteins on the functional properties of wheat flour, the functional and biochemical properties of wheat flour were analyzed in three transgenic wheat lines overexpressing the avenin-like b gene using the sodium dodecyl sulfate sedimentation (sdss) test, mixograph and size exclusion-high perf ...	2013	24288453
head-group acylation of monogalactosyldiacylglycerol is a common stress response, and the acyl-galactose acyl composition varies with the plant species and applied stress.	formation of galactose-acylated monogalactosyldiacylglycerols has been shown to be induced by leaf homogenization, mechanical wounding, avirulent bacterial infection and thawing after snap-freezing. here, lipidomic analysis using mass spectrometry showed that galactose-acylated monogalactosyldiacylglycerols, formed in wheat (triticum aestivum) and tomato (solanum lycopersicum) leaves upon wounding, have acyl-galactose profiles that differ from those of wounded arabidopsis thaliana, indicating th ...	2013	24286212
dispersal pattern and dispersion of adult and nymph stink bugs (hemiptera: pentatomidae) in wheat and corn.	euschistus servus (say) can develop a generation on wheat, triticum aestivum l., before moving to corn, zea mays l., where it can be a pest. because effective management methods are unknown, this study sought to describe the spatial distribution and dispersal of e. servus in the wheat and corn interface. in addition, oebalus pugnax (f.) densities were documented in both crops. wheat fields adjacent to the corn were sampled before harvest and stink bugs were marked using a product containing egg ...	2013	24280558
functional analyses of an e3 ligase gene aip2 from wheat in arabidopsis revealed its roles in seed germination and pre-harvest sprouting.	pre-harvest sprouting (phs) seriously affects wheat yield and quality of the grain. abi3 is a key factor in the activation of seed development and repression of germination in arabidopsis. an abi3-interacting protein (aip2) could polyubiquitinate abi3, impair seed dormancy and promote seed germination in arabidopsis. in this study, two wheat aip2 genes, taaip2a and taaip2b, were isolated. subcellular localization assay and yeast two-hybrid analysis revealed that taaip2a and taaip2b may function ...	2014	24279988
sina and sinb genes in triticale do not determine grain hardness contrary to their orthologs pina and pinb in wheat.	secaloindoline a (sina) and secaloindoline b (sinb) genes of hexaploid triticale (x triticosecale wittmack) are orthologs of puroindoline a (pina) and puroindoline b (pinb) in hexaploid wheat (triticum aestivum l.). it has already been proven that rna interference (rnai)-based silencing of pina and pinb genes significantly decreased the puroindoline a and puroindoline b proteins in wheat and essentially increased grain hardness (j exp bot 62:4025-4036, 2011). the function of sina and sinb in tri ...	2013	24279512
a physical map of the short arm of wheat chromosome 1a.	bread wheat (triticum aestivum) has a large and highly repetitive genome which poses major technical challenges for its study. to aid map-based cloning and future genome sequencing projects, we constructed a bac-based physical map of the short arm of wheat chromosome 1a (1as). from the assembly of 25,918 high information content (hicf) fingerprints from a 1as-specific bac library, 715 physical contigs were produced that cover almost 99% of the estimated size of the chromosome arm. the 3,414 bac ...	2013	24278269
structural and genetical studies on the high-molecular-weight subunits of wheat glutenin : part 1: allelic variation in subunits amongst varieties of wheat (triticum aestivum).	the high-molecular-weight (hmw) subunits of glutenin from about 185 varieties were fractionated by sodium dodecyl sulphate polyacrylamide gel electrophoresis (sds-page). about 20 different, major subunits were distinguished by this technique although each variety contained, with only a few exceptions, between 3 and 5 subunits. further inter-varietal substitution lines to those already described (payne et al. 1980) were analysed and the results indicate that all the hmw subunits are controlled by ...	1981	24276740
an analysis of genes for resistance against two indian cultures of stem rust races of two bread wheats.	two bread wheat accessions, e5008 and e6160, have been genetically analysed for resistance genes effective against indian cultures of stem rust races, 15c and 122. the inheritance of resistance to each race has been determined from the f1 and f2 of the crosses (resistant parents with the susceptible variety, 'agra local') and f2 progenies from the backcross to 'agra local'. tests have been performed to see if the two varieties carry common genes/s for resistance. the identity of the genes for re ...	1981	24276687
the role of 'norin 10' dwarfing genes in photosynthetic and respiratory activity of wheat leaves.	a comparative analysis of eight cultivars of spring wheat (triticum aestivum) classified by height as tall (t), semi-dwarf (d1), dwarf (d2) and very dwarf (d3) was conducted to study their efficiency of oxygen exchange during photosynthesis and dark respiration. two cultivars were included in each height group.cultivars carrying 'norin 10' dwarfing genes (d1, d2 and d3) were found to have a significantly higher photosynthetic rate per unit leaf area than talls (t) that lack these genes. among th ...	1981	24276628
d genome doners for aegilops cylindrica (ccdd) and triticum aestivum (aabbdd) deduced from esterase isozyme analysis.	putative d genome donors for aegilops cylindrica (2n = 28, ccdd) and triticum aestivum (2n = 42, aabbdd) were studied with the isoelectric focusing patterns of esterase isozymes. 103 strains of ae. cylindrica were uniform in their isozyme pattern. 30 strains of the putative parent, ae. caudata, showed no zymogram variation, whereas the other parent, ae. squarrosa, comprised 3 phenotypes. natural ae. cylindrica had an isozyme pattern which corresponded to a mixture of esterases from ae. caudata a ...	1981	24276583
monosomic analysis of genes for resistance against stem rust races in bread wheat.	using monosomic analysis genes governing resistance in one wheat variety, 'e5883', against stem rust races 15c and 122, were located on specific chromosomes. against race 15c, a major dominant gene, sr6, was located on chromosome 2d of 'e5883' with minor modifiers found on chromosomes 4a and 6d. against race 122, the presence of a recessive hemizygous ineffective gene, sr8, was identified, located on chromosome 6a of variety 'e5883'.	1981	24276516
an evaluation of mitochondrial heterosis and in vitro mitochondrial complementation in wheat, barley and maize.	two families each of wheat (triticum aestivum l.), barley (hordeum vulgare l.) and maize (zea mays l.) were studied for mitochondrial heterosis and in vitro mitochondrial complementation. inbred parents and their hybrids were compared for seedling heights and rate of oxygen uptake by the whole tissue to find out if the hybrids showed greater growth and respiratory activity at the seedling stage. further comparisons were made by isolating mitochondria from the seedling tissues and measuring their ...	1981	24276441
the induction of sensitivity to gibberellin in aleurone tissue of developing wheat grains : ii. evidence for temperature-dependent membrane transitions.	aleurone tissue from undried immature developing wheat grains (triticum aestivum l. cv. sappo), normally insensitive to gibberellic acid, can be made to respond to the hormone by a series of temperature treatments. incubation of the de-embryoed grains at temperatures above 27° c for at least 8 h causes the tissue to become sensitive. prolonged incubation at temperatures below 27° c does not effect a change in sensitivity. in addition to the requirement for exposure to an elevated temperature for ...	1982	24276355
the induction of sensitivity to gibberellin in aleurone tissue of developing wheat grains : i. the effect of dehydration.	aleurone layers from immature developing wheat grains (triticum aestivum l. cvs. sappo. and champlein), though normally insensitive, can be made to produce α-amylase in response to gibberellic acid by subjecting the grains to a period of enforced dehydration prior to introduction to the hormone. the change in sensitivity appears to depend upon the water content of the tissue, water levels of below approximately 25% being critical for the effect. grain detachment or duration of drying apparently ...	1982	24276354
a genetic basis for the origin of six different isolectins in hexaploid wheat.	wheat (triticum aestivum) germ agglutinin represents a complex mixture of multiple isolectin forms. upon ion exchange chromatography at ph 3.8, three isolectins can be separated, each of which is composed of two identical subunits. at ph 5.0, however, three additional isolectins can be distinguished, which are built up of two different subunits (heteromeric lectins). evidence is presented that these heterodimers are normal constituents of the wheat embryo cells. analyses of the isolectin pattern ...	1982	24276352
characterization of the caryopsis of common wheat varieties and f2 generation hybrids by means of multivariate analysis.	nineteen parameters of common wheat kernels were investigated by the multivariate procedure. a relationship between the dbc parameter and both specific gravity and kernel filling was found. in some populations an interdependence of the dbc parameter and the subaleurone endosperm thickness was found. in the analysis of principal components the dbc parameter was represented mostly by particular component. significant dependences were found between the dimensions as well as the weight of the caryop ...	1981	24276327
changes in the content of modified nucleotides of total transfer rna of wheat seedlings during greening.	the contents in minor nucleotides of total transfer rna (trna) of etiolated and light-grown wheat (triticum aestivum l.) seedlings and of seedlings illuminated for 24 or 48 h were examined. the total trna of seedlings illuminated 24 h contained more, and that from seedlings illuminated 48 h still more modified nucleotides than that from etiolated ones. thus, the appearance of the characteristic minor nucleotides of trna of light-grown wheat seedlings needs a rather long greening period, of at le ...	1982	24276266
the golgi apparatus in developing endosperm of wheat (triticum aestivum l.).	the ultrastructure and distribution of the golgi apparatus in developing wheat endosperm was investigated using a zinc iodide-osmium tetroxide staining complex in conjunction with low and high voltage electron microscopy. dictyosomes were numerous in starchy endosperm and aleurone at 15 days after anthesis, and during the period of rapid storage protein deposition 25 d after anthesis. fewer dictyosomes were seen in maturing endosperm. two types of vesicles were associated with the dictyosomes; s ...	1982	24276072
effect of choline chloride on fatty acid chain ordering in membranes of wheat (triticum aestvium l. cv. miranovskaja 808).	a winter variety (miranovskaja 808) of wheat (triticum aestivum l.) was grown in water cultures containing 0, 5, 15, 30, and 60 mm choline chloride. there was an increase in the phosphatidylcholine level at the expense of phosphatidic acid, parallel with an increasing choline concentration in the cultivating medium. while the ratio of free sterols to phospholipids remained essentially constant in the seedlings, there was an increase in the ratio of saturated-to-unsaturated fatty acids of the pho ...	1981	24275821
variation in the wheat ap2 homoeologs, the genes underlying lodicule development.	the bread wheat genome harbors three homoeologs of the barley gene hvap2, which determines the cleistogamous/non-cleistogamous flowering. the three homoeologs, taap2-a, taap2-b and taap2-d, are derived from the a, b and d genomes. the importance of lodicule swelling in assuring non-cleistogamous flowering in a range of wild and domesticated wheat accessions of varying ploidy level was established. re-sequencing of wheat ap2 homoeologous genes was carried out to identify natural variation at both ...	2013	24273420
lectin synthesis in developing and germinating wheat and rye embryos.	wheat (triticum aestivum l.) and rye (secale cereale l.) lectins are specifically synthesized during seed formation. they accumulate exponentially in the primary axes in a period coinciding with the development of this complex organ. since the specific lectin content also increases dramatically, there is apparently an outburst of lectin synthesis during the development of the primary axes. germinating embryos also synthesize some lectin. the fortunate availability of a highly specific procedure ...	1982	24272214
the effect of plant-hormone pretreatments on ethylene production and synthesis of 1-aminocyclopropane-1-carboxylic acid in water-stressed wheat leaves.	excised wheat (triticum aestivum l.) leaves, when subjected to drought stress, increased ethylene production as a result of an increased synthesis of 1-aminocyclopropane-1-carboxylic acid (acc) and an increased activity of the ethyleneforming enzyme (efe), which catalyzes the conversion of acc to ethylene. the rise in efe activity was maximal within 2 h after the stress period, while rehydration to relieve water stress reduced efe activity within 3 h to levels similar to those in nonstressed tis ...	1982	24271976
the properties of transketolase from photosynthetic tissue.	transketolase (e.c. 2.2.1.1.) has been partially purified from wheat (triticum aestivum, cv. sappo) and spinach (spinacia oleracea) leaves. the fully-active enzyme is a tetramer of relative molecular mass (mr) of 150 kmr requiring thiamin pyrophosphate for maximal activity, and dissociating into a 74 kmr dimer in its absence or in dilute solution. the chloroplastic transketolase (over 75% of the cellular total) is magnesium-stimulated but the cytosolic form is magnesium-insensitive. both chlorop ...	1982	24271866
phytotoxicity of water-soluble substances from alfalfa and barley soil extracts on four crop species.	problems associated with continuously planting alfalfa (medicago saliva l.) or seeding to thicken depleted alfalfa stands may be due to autotoxicity, an intraspecific form of allelopathy. a bioassay approach was utilized to characterize the specificity and chemical nature of phytotoxins in extracts of alfalfa soils as compared to fallow soil or soil where a cereal was the previous crop. in germination chamber experiments, water-soluble substances present in methanol extracts of soil cropped to a ...	1989	24271803
histochemical localization of nucleotide pyrophosphatase and cyclic nucleotide phosphodiesterase in seeds and shoots of triticum.	the activities of potato nucleotide pyrophosphatase and cyclic nucleotide phosphodiesterase against a common substrate, p-nitrophenyl thymidine 5'-phosphate and its histochemical analogue, as-bi-naphthyl thymidine 5'-phosphate, were determined with the aid of relatively specific inhibitors, nad and 2',3'-camp, respectively. these inhibitors were utilized to reexamine wheat (triticum aestivum l. cv. mironovska 808) seeds and 3-5-d old shoots for the occurrence and histochemical localization of nu ...	1982	24271768
cdna cloning, in vitro transcription and partial sequence analysis of mrnas from winter wheat (triticum aestivum l.) with induced resistance to erysiphe graminis f. sp. tritici.	under normal growth conditions wheat shows 100% non-host resistance to the barley powdery mildew erysiphe graminis f. sp. hordei (egh.). primary inoculation of 7-day-old wheat seedlings with this fungus induced partial (60-70%) local resistance to challenge inoculation 12 hours later with the compatible pathogen erysiphe graminis f. sp. tritici (egt). mrna was isolated from induced resistant first leaves (13 hours after primary inoculation) and a cdna library was established in lambda zap. diffe ...	1989	24271197
mapping of the hor-3 locus encoding d hordein in barley.	the hordein storage proteins of barley (hordeum vulgare l.) are of intense interest due to their genetic diversity and prominence and impact on the industrial and agricultural uses of the seed. two major hordein loci have been previously mapped on chromosome 5 (hor-1 and hor-2 encoding the c and b hordeins, respectively). a third major locus, hor-3, which codes for d hordein, has been located in the centromeric region of chromosome 5, probably on the long arm. two allelic variants with apparent ...	1982	24270874
the wheat ribosomal dna spacer region: its structure and variation in populations and among species.	the wheat rdna clone pta250 was examined in detail to provide a restriction enzyme map and the nucleotide sequence of two of the eleven, 130 bp repeating units found within the spacer region. the 130 bp units showed some sequence heterogeneity. the sequence difference between the two 130 bp units analysed (130.6 and 130.8) was at 7 positions and could be detected as a 4 °c shift in tm when heterologous and homologous hybrids were compared. this corresponded to a 1.2% change in nucleotide sequenc ...	1982	24270871
relationships of agropyron intermedium chromosomes determined by chromosome pairing and alcohol dehydrogenase isozymes in common wheat background.	the relationships of agropyron intermedium chromosomes in two wheat-agropyron addition series were determined. chromosome pairing behaviour revealed that the alien chromosome in lines taf-2 and l7 of 'vilmorin'-a. intermedium set are homologous to the alien chromosomes in lines p and c of the 'caribo'-a. intermedium set respectively. localization of alcohol dehydrogenase isozyme genes in 'vilmorin'-agropyron addition line l4 and in 'caribo'-agropyron line o indicated relationships with wheat chr ...	1982	24270819
pollen callus culture in triticum aestivum.	pollen shed between 4-8 d from anthers of triticum aestivum cultured in liquid medium gave rise to calluses. tillers were harvested at the mid-to late-unicellular pollen stages and chilled for 8 d at 4-5 °c before the anthers were dissected out. pollen cultures gave about 6 times as many calluses on a per anther basis as anthers cultured on solid medium. with the most productive of 5 cultivars tested, pollen culture results in roughly one callus for each anther used, though the calluses formed b ...	1982	24270703
impact of biparental mating on correlation coefficients in bread wheat.	phenotypic and genotypic correlation coefficients and path-coefficients were studied in the biparental (bips) and f3 self progenies of the two wheat crosses. a comparison of correlation coefficients in the bips and the f3's revealed that as many as twelve new significant correlations were noticed in case of the bips in cross i although some of them occurred in the undesirable direction. on the other hand, only three new correlations were observed in the bips of cross ii, although as many as fift ...	1982	24270654
anther culture of wheat (triticum aestivum l.) f1's and their reciprocal crosses.	anthers from three sets of wheat (triticum aestivum l. em. thell) f1's and their reciprocal crosses, made between parental lines differing greatly in their ability to produce microspore derived callus, were cultured on the chinese potato medium so that we could 1) more clearly define the role of nuclear or cytoplasmic factors within t. aestivum in transferring the ability to undergo in vitro androgenesis, and 2) to briefly review the gametic representation and disease screening potential of the ...	1982	24270565
epistatic, additive and dominance variation in a triple test cross of bread wheat (triticum aestivum l.).	triple test cross progenies resulting from the crossing of three testers ('kloka', 'up 368' and an f1 intermediate between them) and 24 varieties of bread wheat have been studied for plant height (cm), peduncle length (cm), ear length (cm), number of spikelets per spike and harvest index (ratio between economic and total yield). epistasis was not significant for any of the characters studied. the testers were inadequate for plant height and for peduncle length although the testers varied conside ...	1982	24270534
effect of the d genome and of selection on photosynthesis in wheat.	photosynthesis and transpiration in wheats and in their progenitors were analyzed in relation to their genome, ploidy and selection. the values of these parameters markedly depend on a specific effect of the d genome and on leaf enlargement in the course of evolution in wheats. leaf enlargement has had a marked effect on photosynthesis in the genotypes that are devoid of the d genome; in addition, their photosynthetic capacity is greater in forms with lower leaf area. the increase in the mesophy ...	1982	24270498
n-banding in triticum aestivum following feulgen hydrolysis.	terminal and/or interstitial n-bands were produced on the seven b-genome chromosomes and chromosomes 4 and 7 of the a-genome of triticum aestivum cv. 'chinese spring' by a modified bsg technique following a standard feulgen preparation. the banding was accomplished by modifying the barium hydroxide treatment.	1982	24270495
cytogenetic structure of common wheat cultivars from or introduced into spain.	chromosome arrangements of twenty-eight cultivars of common wheat, triticum aestivum l., from or introduced into spain are compared with that of 'chinese spring' taken as a pattern. all the cultivars analyzed differ from 'chinese spring' by one or two reciprocal translocations. when 12 out of 28 cultivars were compared it was concluded that a minimum number of thirteen interchanges are present, involving at least ten different chromosomes of the complement. the interest of a reappraisal of the r ...	1982	24270334
the chromosomal location of factors determining the presence of phenolic compounds in wheat (triticum aestivum l.).	using thin-layer chromatography and nulli-tetrasomic and ditellosomic series of triticum aestivum l. cv. 'chinese spring', it has been possible to relate the phenolic compounds found in adult plant leaves and 12 day-old seedling leaves with the chromosomes or chromosome arms 1 b, 2 bl, 3 bl, 5 a, 6 al, 7 b and 7 ds.	1982	24270333
genome-specific granule-bound starch synthase i (gbssi) influences starch biochemical and functional characteristics in near-isogenic wheat ( triticum aestivum l.) lines.	near-isogenic wheat ( triticum aestivum l.) lines differing at the waxy locus were studied for the influence of genome-specific granule-bound starch synthase i (gbssi/waxy; wx-a, wx-b, wx-d) on starch composition, structure, and in vitro starch enzymatic hydrolysis. grain composition, amylose concentration, amylopectin unit-chain length distribution, and starch granule size distribution varied with the loss of functional gbssi. amylose concentration was more severely affected in genotypes with g ...	2013	24266496
identification of a novel lea protein involved in freezing tolerance in wheat.	late embryogenesis abundant (lea) proteins are a family of hyper-hydrophilic proteins that accumulate in response to cellular dehydration. originally identified as plant proteins associated with seed desiccation tolerance, lea proteins have been identified in a wide range of organisms such as invertebrates and microorganisms. lea proteins are thought to protect proteins and biomembranes under water-deficit conditions. here, we characterized wci16, a wheat (triticum aestivum) protein that belongs ...	2014	24265272
genetic studies of the crossability of hexaploid wheat with rye and hordeum bulbosum.	crosses of wheat (triticum aestivum l.) group 5 chromosome substitution lines from three different cultivar backgrounds indicate that there may be multiple alleles for reduced crossability with rye (secale cereale l.) and h. bulbosum on both 5a and 5b chromosomes. no reduction in seed set was observed from any of the 5d substitution lines. it was found that the kr1 locus on chromosome 5b had a more pronounced affect on both rye and h. bulbosum crossability than the kr2 locus on chromosome 5a and ...	1983	24265078
the chromosomal location of malate dehydrogenase isozymes in hexaploid wheat (triticum aestivum l.).	the malate dehydrogenase (e.c. no 1.1.1. 37) of triticum aestivum l. cv. chinese spring, shows two activity zones. the results obtained support the hypothesis that the malate dehydrogenase isozymes of zone ii are dimers composed of the six possible combinations of subunits coded by triplicate genes located in the long arms of chromosomes of the homoeologous group 1.	1983	24264953
correlation between gliadin bands.	starch gel electrophoresis of gliadins was carried out for 37 bread wheat cultivars chosen for their distant relationships. simple correlations were calculated between each of the 41 bands (variates) observed with these wheats. it was found that a band is usually negatively correlated with the two neighbouring mobility bands. the number of bands positively or negatively correlated with a given band varies from 2 to 8. taking the bands significantly positively correlated with each-other 32 groups ...	1983	24264877
study of genetic determination of 20 gliadin bands.	study of the genetic determination of the gliadins of two f2 progenies from bread wheat has enabled (1) confirmation of the co-dominant heredity of the presence of these bands in the f1, and (2) determination of the transmission of the presence/absence character for 20 bands. 10 bands are monogenically controlled; 10 others are coded by two pairs of alleles. among the latter 2 bands split into two proteins in 2 dimensional electrophoresis. analysis of the segregations, not taking into considerat ...	1983	24264876
genetic control of endosperm proteins in wheat : 1. the use of high resolution one-dimensional gel electrophoresis for the allocation of genes coding for endosperm protein subunits in the common wheat cultivar chinese spring.	total endosperm protein subunits, extracted from the common wheat cultivar chinese spring and from some of its aneuploid lines, were fractionated according to their molecular weight (mw) in an improved high resolution one-dimensional sodium dodecyl sulphate (sds) polyacrylamide gel electrophoresis (page). the resolution obtained by this method and, in particular, that of the high molecular weight (hmw) glutenin and gliadin subunits approached that of a previous report in which two-dimensional fr ...	1983	24264866
regulation of swelling of etiolated-wheat-leaf protoplasts by phytochrome and gibberellic acid.	the effect of light on the size of intact protoplasts isolated from the primary leaves of etiolated triticum aestivum was studied. a 2-min red-light irradiation in the presence of 1 mm kcl was sufficient to cause a swelling of protoplasts compared with those maintained in darkness. the effect was photoreversible by far-red light over two light cycles, indicating the involvement of phytochrome. at 4°c, escape from reversibility occurred between 2 and 5 min after the exposure to red light. in expo ...	1983	24264850
the composition of free fatty acids and mitochondrial activity in seedlings of winter cereals under cold shock.	cold shock (-4° c, 1 h) induces qualitative and quantitative changes in the composition of free fatty acids in mitochondria of winter-hardy cereals (secale cereale l.,triticum aestivum l.). the amount of these compounds and the degree of their unsaturation increases. simultaneously, a marked change occurs in the oxidative and phophorylative activities of the mitochondria: respiratory control decreases, respiration in state 4 and antimycin a-resistant respiration increase. the changes in mitochon ...	0	24264607
changes in 1-(malonylamino)cyclopropane-1-carboxylic acid content in wilted wheat leaves in relation to their ethylene production rates and 1-aminocyclopropane-1-carboxylic acid content.	in excised wheat (triticum aestivum l.) leaves, water-deficit stress resulted in a rapid increase, followed by a decrease, in ethylene production rates and in the levels of 1-aminocyclopropane-1-carboxylic acid (acc), the immediate precursor of ethylene. however, the level of n-malonyl-acc (macc), the major metabolite of acc, increased gradually, then leveled off. this increase in macc was much greater than the decrease in acc level. the macc levels were positively correlated with severity of wa ...	1983	24264416
nuclear dna content and the control of chloroplast replication in wheat leaves.	during development of the first leaf of breadwheat (triticum aestivum l.) the number of chloroplasts per mesophyll cell increases between three- and four-fold. to establish if chloroplast replication is accompanied by endoreduplication, the nuclear dna content of the cells was determined by chemical assay of isolated nuclei from mesophyll protoplasts and by microdensitometry of nuclei in mesophyll tissue. the dna content of the nuclei was constant (27 to 32 pg) at each phase of chloroplast repli ...	1983	24264273