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You searched for: Journal name Plant physiology Remove constraint Journal name: Plant physiology Subject term Triticum aestivum Remove constraint Subject term: Triticum aestivum
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1. 8'-Methylene abscisic acid: an effective and persistent analog of abscisic acid

Author:
Abrams, S.R.; Rose, P.A.; Cutler, A.J.; Balsevich, J.J.; Lei, B.; Walker-Simmons, M.K.
Source:
Plant physiology 1997 v.114 no.1 pp. 89-97
ISSN:
0032-0889
Subject:
seed germination; Zea mays; chemical reactions; seedlings; cotyledons; biochemical pathways; carbon; transpiration; Triticum aestivum; growth retardation; gene expression; binding sites; abscisic acid; Lepidium sativum; synthesis; cell suspension culture
Abstract:
... We report here the synthesis and biological activity of a new persistent abscisic acid (ABA) analog, 8'-methylene ABA. This ABA analog has one additional carbon atom attached through a double bond to the 8'-carbon of the ABA molecule. (+)-8'-Methylene ABA is more active than the natural hormone (+)-ABA in inhibiting germination of cress seed and excised wheat embryos, in reducing growth of suspens ...

2. A 3,000-Loci Transcription Map of Chromosome 3B Unravels the Structural and Functional Features of Gene Islands in Hexaploid Wheat

Author:
Camille Rustenholz; Frédéric Choulet; Christel Laugier; Jan Šafář; Hana Šimková; Jaroslav DoleŽel; Federica Magni; Simone Scalabrin; Federica Cattonaro; Sonia Vautrin; Arnaud Bellec; Hélène Bergès; Catherine Feuillet; Etienne Paux
Source:
Plant physiology 2011 v.157 no.4 pp. 1596-1608
ISSN:
0032-0889
Subject:
Brachypodium distachyon; Oryza sativa; RNA; Triticum aestivum; bacterial artificial chromosomes; chromosome mapping; complementary DNA; evolution; gene duplication; gene expression; gene expression regulation; genes; genomic islands; hexaploidy; microarray technology; rice; telomeres; wheat
Abstract:
... To improve our understanding of the organization and regulation of the wheat (Triticum aestivum) gene space, we established a transcription map of a wheat chromosome (3B) by hybridizing a newly developed wheat expression microarray with bacterial artificial chromosome pools from a new version of the 3B physical map as well as with cDNA probes derived from 15 RNA samples. Mapping data for almost 3, ...
DOI:
10.1104/pp.111.183921
PubMed:
22034626
PubMed Central:
PMC3327205

3. A Comparative Genomics Strategy for Targeted Discovery of Single-Nucleotide Polymorphisms and Conserved-Noncoding Sequences in Orphan Crops

Author:
Feltus, F.A.; Singh, H.P.; Lohithaswa, H.C.; Schulze, S.R.; Silva, T.D.; Paterson, A.H.
Source:
Plant physiology 2006 v.140 no.4 pp. 1183-1191
ISSN:
1532-2548
Subject:
rice; sequence alignment; millets; Oryza sativa; Cynodon dactylon; wheat; barley; Cynodon transvaalensis; Hordeum vulgare; Eragrostis tef; Triticum aestivum; introns; Zea mays; evolution; conserved sequences; corn; Pennisetum glaucum; single nucleotide polymorphism; plant genetics; grain sorghum; expressed sequence tags; genomics; Sorghum bicolor; genetic variation
Abstract:
... Completed genome sequences provide templates for the design of genome analysis tools in orphan species lacking sequence information. To demonstrate this principle, we designed 384 PCR primer pairs to conserved exonic regions flanking introns, using Sorghum/Pennisetum expressed sequence tag alignments to the Oryza genome. Conserved-intron scanning primers (CISPs) amplified single-copy loci at 37% t ...
DOI:
10.1104/pp.105.074203
PubMed:
16607031
PubMed Central:
PMC1435799

4. A Diurnal Component to the Variation in Sieve Tube Amino Acid Content in Wheat

Author:
Gattolin, Stefano; Newbury, H. John; Bale, Jeffrey S.; Tseng, Hua-Ming; Barrett, David A.; Pritchard, Jeremy
Source:
Plant physiology 2008 v.147 no.2 pp. 912-921
ISSN:
0032-0889
Subject:
Aphidoidea; Triticum aestivum; amino acid composition; arginine; asparagine; capillary electrophoresis; diurnal variation; exudation; fluorescence; glutamine; histidine; isoleucine; leucine; lysine; phenylalanine; proline; regression analysis; sap; sieve tubes; stylets; tyrosine; valine; wheat
Abstract:
... We have used high-sensitivity capillary electrophoresis coupled to a laser-induced fluorescence detection method to quantify 16 amino acids in wheat (Triticum aestivum) sieve tube (ST) samples as small as 2 nL collected by severing the stylets of feeding aphids. The sensitivity of the method was sufficient to determine a quantitative amino acid profile of individual STs without the need to bulk sa ...
DOI:
10.1104/pp.108.116079
PubMed:
18417638
PubMed Central:
PMC2409022

5. A Germin-Like Protein Gene Family Functions as a Complex Quantitative Trait Locus Conferring Broad-Spectrum Disease Resistance in Rice

Author:
Manosalva, Patricia M.; Davidson, Rebecca M.; Liu, Bin; Zhu, Xiaoyuan; Hulbert, Scot H.; Leung, Hei; Leach, Jan E.
Source:
Plant physiology 2009 v.149 no.1 pp. 286-296
ISSN:
0032-0889
Subject:
Hordeum vulgare; Oryza sativa; RNA interference; Triticum aestivum; barley; blast disease; blight; chromosomes; crops; disease resistance; genes; natural selection; pathogens; proteins; quantitative trait loci; rice; wheat
Abstract:
... Plant disease resistance governed by quantitative trait loci (QTL) is predicted to be effective against a broad spectrum of pathogens and long lasting. Use of these QTL to improve crop species, however, is hindered because the genes contributing to the trait are not known. Five disease resistance QTL that colocalized with defense response genes were accumulated by marker-aided selection to develop ...
DOI:
10.1104/pp.108.128348
PubMed:
19011003
PubMed Central:
PMC2613727

6. A Glucurono(arabino)xylan Synthase Complex from Wheat Contains Members of the GT43, GT47, and GT75 Families and Functions Cooperatively

Author:
Zeng, Wei; Jiang, Nan; Nadella, Ramya; Killen, Tara L.; Nadella, Vijayanand; Faik, Ahmed
Source:
Plant physiology 2010 v.154 no.1 pp. 78-97
ISSN:
0032-0889
Subject:
Triticum aestivum; anion exchange; antibodies; biosynthesis; cell walls; chromatography; glycosyltransferases; grasses; oligosaccharides; polymers; proteins; proteomics; transcriptomics; uridine diphosphate; wheat
Abstract:
... Glucuronoarabinoxylans (GAXs) are the major hemicelluloses in grass cell walls, but the proteins that synthesize them have previously been uncharacterized. The biosynthesis of GAXs would require at least three glycosyltransferases (GTs): xylosyltransferase (XylT), arabinosyltransferase (AraT), and glucuronosyltransferase (GlcAT). A combination of proteomics and transcriptomics analyses revealed th ...
DOI:
10.1104/pp.110.159749
PubMed:
20631319
PubMed Central:
PMC2938142

7. A New Insight into Application for Barley Chromosome Addition Lines of Common Wheat: Achievement of Stigmasterol Accumulation

Author:
Jianwei Tang; Kiyoshi Ohyama; Kanako Kawaura; Hiromi Hashinokuchi; Yoko Kamiya; Masashi Suzuki; Toshiya Muranaka; Yasunari Ogihara
Source:
Plant physiology 2011 v.157 no.3 pp. 1555-1567
ISSN:
0032-0889
Subject:
Arabidopsis; Hordeum vulgare; Triticum aestivum; barley; bioactive properties; biosynthesis; chromosome addition; chromosome mapping; chromosomes; complementary DNA; crossing; cytochrome P-450; gene overexpression; genes; seedlings; seeds; stigmasterol; synergism; wheat
Abstract:
... Barley (Hordeum vulgare) has a much higher content of bioactive substances than wheat (Triticum aestivum). In order to investigate additive and/or synergistic effect(s) on the phytosterol content of barley chromosomes, we used a series of barley chromosome addition lines of common wheat that were produced by normal crossing. In determining the plant sterol levels in 2-week-old seedlings and dry se ...
DOI:
10.1104/pp.111.183533
PubMed:
21951468
PubMed Central:
PMC3252158

8. A Rhizosphere Fungus Enhances Arabidopsis Thermotolerance through Production of an HSP90 Inhibitor

Author:
McLellan, Catherine A.; Turbyville, Thomas J.; Wijeratne, E.M. Kithsiri; Kerschen, Arthur; Vierling, Elizabeth; Queitsch, Christine; Whitesell, Luke; Gunatilaka, A.A. Leslie
Source:
Plant physiology 2007 v.145 no.1 pp. 174-182
ISSN:
0032-0889
Subject:
Arabidopsis thaliana; Paraphaeosphaeria; plant stress; heat tolerance; seedlings; stress response; regulatory proteins; wheat; heat stress; molecular chaperones; Triticum aestivum; knockout mutants; plant response; xerophytes; temperature; rhizosphere fungi
Abstract:
... The molecular chaperone HEAT SHOCK PROTEIN90 (HSP90) is essential for the maturation of key regulatory proteins in eukaryotes and for the response to temperature stress. Earlier, we have reported that fungi living in association with plants of the Sonoran desert produce small molecule inhibitors of mammalian HSP90. Here, we address whether elaboration of the HSP90 inhibitor monocillin I (MON) by t ...
DOI:
10.1104/pp.107.101808
PubMed:
17631526
PubMed Central:
PMC1976574

9. A Second Mechanism for Aluminum Resistance in Wheat Relies on the Constitutive Efflux of Citrate from Roots

Author:
Ryan, Peter R.; Raman, Harsh; Gupta, Sanjay; Horst, Walter J.; Delhaize, Emmanuel
Source:
Plant physiology 2009 v.149 no.1 pp. 340-351
ISSN:
0032-0889
Subject:
citrates; microsatellite repeats; loci; phenotype; expressed sequence tags; wheat; crossing; chromosome mapping; Triticum aestivum; aluminum; genotype; phenotypic variation; resistance mechanisms; toxins; roots
Abstract:
... The first confirmed mechanism for aluminum (Al) resistance in plants is encoded by the wheat (Triticum aestivum) gene, TaALMT1, on chromosome 4DL. TaALMT1 controls the Al-activated efflux of malate from roots, and this mechanism is widespread among Al-resistant genotypes of diverse genetic origins. This study describes a second mechanism for Al resistance in wheat that relies on citrate efflux. Ci ...
DOI:
10.1104/pp.108.129155
PubMed:
19005085
PubMed Central:
PMC2613747

10. A Set of Modular Binary Vectors for Transformation of Cereals

Author:
Himmelbach, Axel; Zierold, Uwe; Hensel, Götz; Riechen, Jan; Douchkov, Dimitar; Schweizer, Patrick; Kumlehn, Jochen
Source:
Plant physiology 2007 v.145 no.4 pp. 1192-1200
ISSN:
0032-0889
Subject:
Hordeum vulgare; RNA interference; Triticum aestivum; barley; crops; double-stranded RNA; gene expression; genes; genetic transformation; wheat
Abstract:
... Genetic transformation of crop plants offers the possibility of testing hypotheses about the function of individual genes as well as the exploitation of transgenes for targeted trait improvement. However, in most cereals, this option has long been compromised by tedious and low-efficiency transformation protocols, as well as by the lack of versatile vector systems. After having adopted and further ...
DOI:
10.1104/pp.107.111575
PubMed:
17981986
PubMed Central:
PMC2151723

11. A Single Binding Site Mediates Resistance- and Disease-Associated Activities of the Effector Protein NIP1 from the Barley Pathogen Rhynchosporium secalis

Author:
van't Slot, Klaas A.E.; Gierlich, Angela; Knogge, Wolfgang
Source:
Plant physiology 2007 v.144 no.3 pp. 1654-1666
ISSN:
0032-0889
Subject:
Arabidopsis thaliana; Avena sativa; Escherichia coli; Hordeum vulgare; Rhynchosporium secalis; Secale cereale; Triticum aestivum; Zea mays; barley; binding sites; complementary genes; corn; oats; pathogens; plasma membrane; protein synthesis; proteins; rye; wheat
Abstract:
... The effector protein NIP1 from the barley (Hordeum vulgare) pathogen Rhynchosporium secalis specifically induces the synthesis of defense-related proteins in cultivars of barley expressing the complementary resistance gene, Rrs1. In addition, it stimulates the activity of the barley plasma membrane H⁺-ATPase in a genotype-unspecific manner and it induces necrotic lesions in leaf tissues of barley ...
DOI:
10.1104/pp.106.094912
PubMed:
17478637
PubMed Central:
PMC1914146

12. A Sodium Transporter (HKT7) Is a Candidate for Nax1, a Gene for Salt Tolerance in Durum Wheat

Author:
Huang, Shaobai; Spielmeyer, Wolfgang; Lagudah, Evans S.; James, Richard A.; Platten, J. Damien; Dennis, Elizabeth S.; Munns, Rana
Source:
Plant physiology 2006 v.142 no.4 pp. 1718-1727
ISSN:
0032-0889
Subject:
Oryza sativa; Triticum aestivum; Triticum monococcum; Triticum turgidum subsp. durum; amino acids; bacterial artificial chromosomes; chromosome mapping; durum wheat; genes; leaf blade; loci; quantitative trait loci; rice; roots; salt tolerance; salts; sodium; transporters; xylem
Abstract:
... Durum wheat (Triticum turgidum subsp. durum) is more salt sensitive than bread wheat (Triticum aestivum). A novel source of Na⁺ exclusion conferring salt tolerance to durum wheat is present in the durum wheat Line 149 derived from Triticum monococcum C68-101, and a quantitative trait locus contributing to low Na⁺ concentration in leaf blades, Nax1, mapped to chromosome 2AL. In this study, we used ...
DOI:
10.1104/pp.106.088864
PubMed:
17071645
PubMed Central:
PMC1676039

13. A fungal endoglucanase with plant cell wall extension activity

Author:
Yuan, S.; Wu, Y.; Cosgrove, D.J.
Source:
Plant physiology 2001 v.127 no.1 pp. 324-333
ISSN:
0032-0889
Subject:
glycosidases; coleoptiles; Cucumis sativus; cell walls; molecular weight; rheological properties; Triticum aestivum; hydrolysis; enzyme activity
Abstract:
... We have identified a wall hydrolytic enzyme from Trichoderma reesei with potent ability to induce extension of heat-inactivated type I cell walls. It is a small (23-kD) endo-1,4-beta-glucanase (Cel12A) belonging to glycoside hydrolase family 12. Extension of heat-inactivated walls from cucumber (Cucumis sativus cv Burpee Pickler) hypocotyls was induced by Cel12Aafter a distinct lag time and was ac ...
PubMed:
11553760
PubMed Central:
PMC117988

14. A new resource for cereal genomics: 22K barley GeneChip comes of age

Author:
Close, T.J.; Wanamaker, S.I.; Caldo, R.A.; Turner, S.M.; Ashlock, D.A.; Dickerson, J.A.; Wing, R.A.; Muehlbauer, G.J.; Kleinhofs, A.; Wise, R.P.
Source:
Plant physiology 2004 v.134 no.3 pp. 960
ISSN:
0032-0889
Subject:
rice; Oryza sativa; bioinformatics; information sources; wheat; Avena strigosa; barley; Hordeum vulgare; Triticum aestivum; gene banks; Zea mays; DNA libraries; complementary DNA; conserved sequences; corn; grain crops; microarray technology; oats; expressed sequence tags; Sorghum bicolor
Abstract:
... In recent years, access to complete genomic sequences, coupled with rapidly accumulating data related to RNA and protein expression patterns, has made it possible to determine comprehensively how genes contribute to complex phenotypes. However, for major crop plants, publicly available, standard platforms for parallel expression analysis have been limited. We report the conception and design of th ...
Handle:
10113/14393
DOI:
10.1104/pp.103.034462
PubMed:
15020760
PubMed Central:
PMC389919

15. A novel auxin conjugate hydrolase from wheat with substrate specificity for longer side-chain auxin amide conjugates

Author:
Campanella, J.J.; Olajide, A.F.; Magnus, V.; Ludwig-Muller, J.
Source:
Plant physiology 2004 v.135 no.4 pp. 2230-2240
ISSN:
0032-0889
Subject:
grain crops; substrate specificity; seedlings; indole butyric acid; wheat; amides; hydrolases; Triticum aestivum; nucleotide sequences; enzyme substrates; enzyme activity; indole acetic acid; plant proteins
Abstract:
... This study investigates how the ILR1-like indole acetic acid (IAA) amidohydrolase family of genes has functionally evolved in the monocotyledonous species wheat (Triticum aestivum). An ortholog for the Arabidopsis IAR3 auxin amidohydrolase gene has been isolated from wheat (TaIAR3). The TaIAR3 protein hydrolyzes negligible levels of IAA-Ala and no other IAA amino acid conjugates tested, unlike its ...
DOI:
10.1104/pp.104.043398
PubMed:
15299127
PubMed Central:
PMC520793

16. A novel class of herbicides: specific inhibitors of imidazoleglycerol phosphate dehydratase

Author:
Mori, I.; Fonne-Pfister, R.; Matsunaga, S.; Tada, S.; Kimura, Y.; Iwasaki, G.; Mano, J.; Hatano, M.; Nakano, T.; Koizumi, S.
Source:
Plant physiology 1995 v.107 no.3 pp. 719-723
ISSN:
0032-0889
Subject:
Arabidopsis thaliana; mechanism of action; Xanthium; Zea mays; weed control; biosynthesis; Hordeum vulgare; triazole herbicides; Echinochloa crus-galli; Chenopodium album; seedlings; phytotoxicity; Sorghum halepense; enzyme inhibitors; Triticum aestivum; structure-activity relationships; Amaranthus retroflexus; histidine; hydro-lyases
Abstract:
... A new mode of herbicidal action was established by finding specific inhibitors of imidazoleglycerol phosphate dehydratase, an enzyme of histidine (His) biosynthesis. Three triazole phosphonates inhibited the reaction of the enzyme with Ki values of 40 +/- 6.5, 10 +/- 1.6, and 8.5 +/- 1.4 nM, respectively, and were highly cytotoxic to cultured plant cells. This effect was completely reversed by the ...

17. A plant gene up-regulated at rust infection sites

Author:
Ayliffe, M.A.; Roberts, J.K.; Mitchell, H.J.; Zhang, R.; Lawrence, G.J.; Ellis, J.G.; Pryor, T.J.
Source:
Plant physiology 2002 v.129 no.1 pp. 169-180
ISSN:
0032-0889
Subject:
wheat; plant pathogenic fungi; genes; promoter regions; barley; Hordeum vulgare; gene expression; Triticum aestivum; disease resistance; pathogenesis; mesophyll; flax; leaves; Zea mays; Arabidopsis; Linum usitatissimum; host plants; corn; amino acid sequences; pathogenicity; rust diseases; Melampsora lini; aldehyde dehydrogenase; plant morphology
Abstract:
... Expression of the fis1 gene from flax (Linum usitatissimum) is induced by a compatible rust (Melampsora lini) infection. Infection of transgenic plants containing a beta-glucuronidase (GUS) reporter gene under the control of the fis1 promoter showed that induction is highly localized to those leaf mesophyll cells within and immediately surrounding rust infection sites. The level of induction refle ...
PubMed:
12011348
PubMed Central:
PMC155881

18. A weakly voltage-dependent, nonselective cation channel mediates toxic sodium influx in wheat

Author:
Davenport, R.J.; Tester, M.
Source:
Plant physiology 2000 v.122 no.3 pp. 823-834
ISSN:
0032-0889
Subject:
protoplasts; inorganic ions; plasma membrane; electrical properties; calcium; ion transport; cations; gadolinium; magnesium; sodium; Triticum aestivum; potassium; electrophysiology; roots; permeability; plant proteins
Abstract:
... To determine the transporters responsible for toxic Na(+) influx in wheat (Triticum aestivum), root plasma membrane preparations were screened using the planar lipid bilayer technique as an assay for Na(+)-permeable ion channel activity. The predominant channel in the bilayer was a 44-pS channel that we called the nonselective cation (NSC) channel, which was nonselective for monovalent cations and ...
PubMed:
10712546
PubMed Central:
PMC58918

19. Acclimation of Leaf Nitrogen to Vertical Light Gradient at Anthesis in Wheat Is a Whole-Plant Process That Scales with the Size of the Canopy

Author:
Delphine Moreau; Vincent Allard; Oorbessy Gaju; Jacques Le Gouis; M. John Foulkes; Pierre Martre
Source:
Plant physiology 2012 v.160 no.3 pp. 1479-1490
ISSN:
0032-0889
Subject:
Triticum aestivum; acclimation; canopy; cultivars; ecophysiology; environmental factors; flowering; genetic variation; leaves; models; nitrogen; photosynthesis; wheat
Abstract:
... Vertical leaf nitrogen (N) gradient within a canopy is classically considered as a key adaptation to the local light environment that would tend to maximize canopy photosynthesis. We studied the vertical leaf N gradient with respect to the light gradient for wheat (Triticum aestivum) canopies with the aims of quantifying its modulation by crop N status and genetic variability and analyzing its eco ...
DOI:
10.1104/pp.112.199935
PubMed:
22984122
PubMed Central:
PMC3490594

20. Accumulation of Al in root mucilage of an Al-resistant and an Al-sensitive cultivar of wheat

Author:
Archambault, D.J.; Zhang, G.; Taylor, G.J.
Source:
Plant physiology 1996 v.112 no.4 pp. 1471-1478
ISSN:
0032-0889
Subject:
Triticum aestivum; aluminum; metal tolerance; root tips; metal ions; ion transport; mucilages; kinetics; uptake mechanisms; varietal resistance; symplast
Abstract:
... To estimate rates of Al accumulation within the symplasm, all apoplastic pools of Al need to be eliminated or accounted for. We have developed a revised kinetic protocol that allows us to estimate the contribution of mucilage-bound Al to total, nonexchangeable Al, and to eliminate the mucilage as an apoplastic pool of Al. By comparing the Al content of excised root tips (2 cm) of wheat (Triticum a ...

21. Activities of key enzymes in sucrose-to-starch conversion in wheat grains subjected to water deficit during grain filling

Author:
Yang, J.; Zhang, J.; Wang, Z.; Xu, G.; Zhu, Q.
Source:
Plant physiology 2004 v.135 no.3 pp. 1621-1629
ISSN:
0032-0889
Subject:
Triticum aestivum; wheat; grain crops; seeds; filling period; water stress; sucrose; starch; bioaccumulation; sucrose synthase; starch synthase; nucleotidyltransferases; beta-fructofuranosidase; carbohydrate metabolism; enzyme activity; leaf water potential; carbon; abscisic acid; fluridone
Abstract:
... This study tested the hypothesis that a controlled water deficit during grain filling of wheat (Triticum aestivum) could accelerate grain-filling rate through regulating the key enzymes involved in Suc-to-starch pathway in the grains. Two high lodging-resistant wheat cultivars were field grown. Well-watered and water-deficit (WD) treatments were imposed from 9 DPA until maturity. The WD promoted t ...
DOI:
10.1104/pp.104.041038
PubMed:
15235118
PubMed Central:
PMC519076

22. Al partitioning patterns and root growth as related to Al sensitivity and Al tolerance in wheat

Author:
Samuels, T.D.; Kucukakyuz, K.; Rincon-Zachary, M.
Source:
Plant physiology 1997 v.113 no.2 pp. 527-534
ISSN:
0032-0889
Subject:
Triticum aestivum; roots; aluminum; quantitative analysis; dose response; phytotoxicity; cultivars; translocation (plant physiology); biological resistance
Abstract:
... Studies of Al partitioning and accumulation and of the effect of Al on the growth of intact wheat (Triticum aestivum L.) roots of cultivars that show differential Al sensitivity were conducted. The effects of various Al concentrations on root growth and Al accumulation inthe tissue were followed for 24 h. At low external Al concentrations, Al accumulation in the root tips was low and root growth w ...

23. Al-induced, 51-kilodalton, membrane-bound proteins are associated with resistance to Al in a segregating population of wheat

Author:
Taylor, G.J.; Basu, A.; Basu, U.; Slaski, J.J.; Zhang, G.; Good, A.
Source:
Plant physiology 1997 v.114 no.1 pp. 363-372
ISSN:
0032-0889
Subject:
cultivars; sulfur; protein synthesis; dose response; quantitative analysis; callose; phytotoxicity; radiolabeling; stress response; cytosol; microsomes; Triticum aestivum; aluminum; mitochondria; tonoplast; genetic variation; plasma membrane; genotype; protein composition
Abstract:
... Incorporation of 35S into protein is reduced by exposure to Al in wheat (Triticum aestivum), but the effects are genotype-specific. Exposure to 10 to 75 micromolars Al had little effect on 35S incorporation into total protein, nuclear and mitochondrial protein, microsomal protein, and cytosolic protein in the Al-resistant cultivar PT741. In contrast, 10 micromolars Al reduced incorporation by 21 t ...

24. Allelic Series of Four Powdery Mildew Resistance Genes at the Pm3 Locus in Hexaploid Bread Wheat

Author:
Srichumpa, Payorm; Brunner, Susanne; Keller, Beat; Yahiaoui, Nabila
Source:
Plant physiology 2005 v.139 no.2 pp. 885-895
ISSN:
0032-0889
Subject:
cultivars; plant genetics; grain crops; haplotypes; alleles; loci; wheat; powdery mildew; Blumeria graminis f. sp. tritici; amino acid sequences; Triticum aestivum; disease resistance; molecular cloning; plant pathogenic fungi; nucleotide sequences; multigene family; hexaploidy
Abstract:
... At the Pm3 locus in hexaploid wheat (Triticum aestivum), 10 alleles conferring race-specific resistance to powdery mildew (Blumeria graminis f. sp. tritici) are known. A cluster of genes encoding coiled-coil-nucleotide-binding site-leucine-rich repeat proteins spans the Pm3 locus on wheat chromosome 1A, and one member of this gene family has recently been identified as the Pm3b resistance gene. Us ...
DOI:
10.1104/pp.105.062406
PubMed:
16183849
PubMed Central:
PMC1256003

25. Allelopathy and grain crop production

Author:
Minorsky, P.V.
Source:
Plant physiology 2002 v.130 no.4 pp. 1745-1746
ISSN:
0032-0889
Subject:
Oryza sativa; rice; Triticum aestivum; wheat; Zea mays; corn; grain crops; food crops; Sorghum bicolor; Hordeum vulgare; barley; seedlings; plant development; allelopathy; crop yield; allelochemicals

26. Aluminum-induced 1 leads to 3-beta-D-glucan inhibits cell-to-cell trafficking of molecules through plasmodesmata. A new mechanism of aluminum toxicity in plants

Author:
Sivaguru, M.; Fujiwara, T.; Samaj, J.; Baluska, F.; Yang, Z.; Osawa, H.; Maeda, T.; Mori, T.; Volkmann, D.; Matsumoto, H.
Source:
Plant physiology 2000 v.124 no.3 pp. 991-1005
ISSN:
0032-0889
Subject:
Triticum aestivum; roots; aluminum; phytotoxicity; plasmodesmata; glucans; callose; immunohistochemistry; developmental stages; translocation (plant physiology); symplast; stress response
Abstract:
... Symplastic intercellular transport in plants is achieved by plasmodesmata (PD). These cytoplasmic channels are well known to interconnect plant cells to facilitate intercellular movement of water, nutrients, and signaling molecules including hormones. However, it is not known whether Al may affect this cell-to-cell transport process, which is a critical feature for roots as organs of nutrient/wate ...

27. Amelioration of ozone-induced oxidative damage in wheat plants grown under high carbon dioxide. Role of antioxidant enzymes

Author:
Rao, M.V.; Hale, B.A.; Ormrod, D.P.
Source:
Plant physiology 1995 v.109 no.2 pp. 421-432
ISSN:
0032-0889
Subject:
carbon dioxide; plant nutrition; glutathione-disulfide reductase; ascorbate peroxidase; superoxide dismutase; NADP (coenzyme); isozymes; ozone; environmental exposure; Triticum aestivum; carotenoids; oxidation; biomass production; enzyme activity; chlorophyll; peroxidase; antioxidants; leaves
Abstract:
... O3-induced changes in growth, oxidative damage to protein, and specific activities of certain antioxidant enzymes were investigated in wheat plant (Triticum aestivum L. cv Roblin) grown under ambient or high CO2. High CO2 enhanced shoot biomass of wheat plants, whereas O3 exposure decreased shoot biomass. The shoot biomass was relatively unaffected in plants grown under a combination of high CO2 a ...

28. Amylolytic activities in cereal seeds under aerobic and anaerobic conditions

Author:
Guglielminetti, L.; Yamaguchi, J.; Perata, P.; Alpi, A.
Source:
Plant physiology 1995 v.109 no.3 pp. 1069-1076
ISSN:
0032-0889
Subject:
seed germination; starch granules; anaerobic conditions; beta-amylase; aerobic conditions; pullulanase; Hordeum vulgare; biosynthesis; Oryza sativa; seedlings; alpha-glucosidase; Triticum aestivum; hydrolysis; biodegradation; enzyme activity; hypoxia; alpha-amylase
Abstract:
... An adequate carbohydrate supply contributes to the survival of seeds under conditions of limited oxygen availability. The amount of soluble, readily fermentable carbohydrates in dry cereal seeds is usually very limited, with starch representing the main storage compound. Starch breakdown during the germination of cereal seeds is the result of the action of hydrolytic enzymes and only through the c ...

29. An Improved Grafting Technique for Mature Arabidopsis Plants Demonstrates Long-Distance Shoot-to-Root Transport of Phytochelatins in Arabidopsis

Author:
Chen, Alice; Komives, Elizabeth A.; Schroeder, Julian I.
Source:
Plant physiology 2006 v.141 no.1 pp. 108-120
ISSN:
0032-0889
Subject:
Arabidopsis thaliana; Triticum aestivum; arsenic; cadmium; chelation; fluorescence; fungi; genes; high performance liquid chromatography; mass spectrometry; mature plants; mutants; phytochelatins; roots; shoots; tissue transplantation; wheat
Abstract:
... Phytochelatins (PCs) are peptides that function in heavy-metal chelation and detoxification in plants and fungi. A recent study showed that PCs have the ability to undergo long-distance transport in a root-to-shoot direction in transgenic Arabidopsis (Arabidopsis thaliana). To determine whether long-distance transport of PCs can occur in the opposite direction, from shoots to roots, the wheat (Tri ...
DOI:
10.1104/pp.105.072637
PubMed:
16531489
PubMed Central:
PMC1459314

30. An Unusual Posttranscriptional Processing in Two Betaine Aldehyde Dehydrogenase Loci of Cereal Crops Directed by Short, Direct Repeats in Response to Stress Conditions

Author:
Niu, Xiangli; Zheng, Wenjing; Lu, Bao-Rong; Ren, Guangjun; Huang, Weizao; Wang, Songhu; Liu, Junli; Tang, Zizhi; Luo, Di; Wang, Yuguo; Liu, Yongsheng
Source:
Plant physiology 2007 v.143 no.4 pp. 1929-1942
ISSN:
0032-0889
Subject:
Arabidopsis thaliana; Hordeum vulgare; Oryza sativa; Solanum lycopersicum; Spinacia oleracea; Triticum aestivum; Zea mays; aldehyde dehydrogenase; aldehydes; barley; betaine; corn; gene deletion; grain crops; insertional mutagenesis; loci; messenger RNA; repetitive sequences; rice; salt tolerance; sequence analysis; spinach; start codon; stop codon; stress response; tomatoes; transcription (genetics); wheat
Abstract:
... Various abilities to synthesize and accumulate glycine betaine (GB) are crucial for angiosperms to develop salt and drought tolerances. In higher plants, GB is synthesized by a two-step oxidation of choline via an intermediate form of betaine aldehyde, and catalyzed by choline monooxygenase and betaine aldehyde dehydrogenase (BADH). In this study, numerous truncated and/or recombinant transcripts ...
DOI:
10.1104/pp.107.095752
PubMed:
17337526
PubMed Central:
PMC1851806

31. An electron paramagnetic resonance spin-probe study of membrane-permeability changes with seed aging

Author:
Golovina, E.A.; Tikhonov, A.N.; Hoekstra, F.A.
Source:
Plant physiology 1997 v.114 no.1 pp. 383-389
ISSN:
0032-0889
Subject:
Triticum aestivum; wheat; membrane permeability; measurement; electron paramagnetic resonance spectroscopy; seed germination; viability; shelf life; postharvest physiology; germplasm; plasma membrane
Abstract:
... We developed an electron paramagnetic resonance spin-probe technique to study changes in the barrier properties of plasma membranes in wheat (Triticum aestivum L.) seeds during aging under dry storage. The estimation of these barrier properties was based on the differential permeability of membranes for the stable free radical 4-oxo-2,2,6,6-tetramethyl-1-piperidinyloxy and the broadening agent fer ...

32. Analysis of Intraspecies Diversity in Wheat and Barley Genomes Identifies Breakpoints of Ancient Haplotypes and Provides Insight into the Structure of Diploid and Hexaploid Triticeae Gene Pools

Author:
Wicker, Thomas; Krattinger, Simon G.; Lagudah, Evans S.; Komatsuda, Takao; Pourkheirandish, Mohammad; Matsumoto, Takashi; Cloutier, Sylvie; Reiser, Laurenz; Kanamori, Hiroyuki; Sato, Kazuhiro; Perovic, Dragan; Stein, Nils; Keller, Beat
Source:
Plant physiology 2009 v.149 no.1 pp. 258-270
ISSN:
0032-0889
Subject:
Aegilops tauschii; Hordeum vulgare; Triticum aestivum; agroecosystems; barley; crossing over; diploidy; gene flow; genes; genetic markers; haplotypes; hexaploidy; loci; transposons; wheat; wild relatives
Abstract:
... A large number of wheat (Triticum aestivum) and barley (Hordeum vulgare) varieties have evolved in agricultural ecosystems since domestication. Because of the large, repetitive genomes of these Triticeae crops, sequence information is limited and molecular differences between modern varieties are poorly understood. To study intraspecies genomic diversity, we compared large genomic sequences at the ...
DOI:
10.1104/pp.108.129734
PubMed:
19011002
PubMed Central:
PMC2613701

33. Analysis of Protein Complexes in Wheat Amyloplasts Reveals Functional Interactions among Starch Biosynthetic Enzymes

Author:
Tetlow, Ian J.; Beisel, Kim G.; Cameron, Scott; Makhmoudova, Amina; Liu, Fushan; Bresolin, Nicole S.; Wait, Robin; Morell, Matthew K.; Emes, Michael J.
Source:
Plant physiology 2008 v.146 no.4 pp. 1878-1891
ISSN:
0032-0889
Subject:
Triticum aestivum; alkaline phosphatase; amylopectin; amyloplasts; antibodies; biosynthesis; chromatography; crosslinking; developmental stages; dissociation; endosperm; filtration; gels; in vitro studies; mass spectrometry; molecular weight; phosphorylation; pollination; protein-protein interactions; proteins; wheat
Abstract:
... Protein-protein interactions among enzymes of amylopectin biosynthesis were investigated in developing wheat (Triticum aestivum) endosperm. Physical interactions between starch branching enzymes (SBEs) and starch synthases (SSs) were identified from endosperm amyloplasts during the active phase of starch deposition in the developing grain using immunoprecipitation and cross-linking strategies. Coi ...
DOI:
10.1104/pp.108.116244
PubMed:
18263778
PubMed Central:
PMC2287356

34. Analysis of Two in Planta Expressed LysM Effector Homologs from the Fungus Mycosphaerella graminicola Reveals Novel Functional Properties and Varying Contributions to Virulence on Wheat

Author:
Marshall, Rosalind; Kombrink, Anja; Motteram, Juliet; Loza-Reyes, Elisa; Lucas, John; Hammond-Kosack, Kim E.; Thomma, Bart P.H.J.; Rudd, Jason J.
Source:
Plant physiology 2011 v.156 no.2 pp. 756-769
ISSN:
0032-0889
Subject:
protein binding; tomatoes; Mycosphaerella graminicola; sporulation; Solanum lycopersicum; enzymes; hosts; plant proteins; hyphae; wheat; amino acids; Triticum aestivum; genes; plant pathogenic fungi; functional properties; virulence; molds (fungi); leaves; Passalora fulva
Abstract:
... Secreted effector proteins enable plant pathogenic fungi to manipulate host defenses for successful infection. Mycosphaerella graminicola causes Septoria tritici blotch disease of wheat (Triticum aestivum) leaves. Leaf infection involves a long (approximately 7 d) period of symptomless intercellular colonization prior to the appearance of necrotic disease lesions. Therefore, M. graminicola is cons ...
DOI:
10.1104/pp.111.176347
PubMed:
21467214
PubMed Central:
PMC3177273

35. Antioxidative defense system, pigment composition, and photosynthetic efficiency in two wheat cultivars subjected to drought

Author:
Loggini, B.; Scartazza, A.; Brugnoli, E.; Navari-Izzo, F.
Source:
Plant physiology 1999 v.119 no.3 pp. 1091-1099
ISSN:
0032-0889
Subject:
rehydration; lipid peroxidation; drought; neoxanthin; glutathione; zeaxanthin; Triticum aestivum; oxidation; cultivars; antheraxanthin; lutein; glyceraldehyde-3-phosphate dehydrogenase; enzyme activity; fructose-bisphosphatase; biochemical pathways; glutathione peroxidase; photosystem II; chemical constituents of plants; chlorophyll; chloroplasts
Abstract:
... We analyzed antioxidative defenses, photosynthesis, and pigments (especially xanthophyll-cycle components) in two wheat (Triticum durum Desf.) cultivars, Adamello and Ofanto, during dehydration and rehydration to determine the difference in their sensitivities to drought and to elucidate the role of different protective mechanisms against oxidative stress. Drought caused a more pronounced inhibiti ...

36. Arabinoxylan biosynthesis in wheat. Characterization of arabinosyltransferase activity in Golgi membranes

Author:
Porchia, A.C.; Sorensen, S.O.; Scheller, H.V.
Source:
Plant physiology 2002 v.130 no.1 pp. 432-441
ISSN:
0032-0889
Subject:
Triticum aestivum; wheat; food crops; seedlings; Golgi apparatus; microsomes; plant proteins; transferases; enzyme activity; xylan; biosynthesis; pH; manganese; cations; solubilization; carbon; isotopes; isotope labeling; chemical constituents of plants; arabinoxylan
Abstract:
... Arabinoxylan arabinosyltransferase (AX-AraT) activity was investigated using microsomes and Golgi vesicles isolated from wheat (Triticum aestivum) seedlings. Incubation of microsomes with UDP-[14C]-beta-L-arabinopyranose resulted in incorporation of radioactivity into two different products, although most of the radioactivity was present in xylose (Xyl), indicating a high degree of UDP-arabinose ( ...
PubMed:
12226522
PubMed Central:
PMC166575

37. Aryl hydroxylation of the herbicide diclofop by a wheat cytochrome P-450 monooxygenase: Substrate specificity and physiological activity

Author:
Zimmerlin, A.; Durst, F.
Source:
Plant physiology 1992 v.100 no.2 pp. 874-881
ISSN:
0032-0889
Subject:
chlorotoluron; chlorsulfuron; microsomes; cytochrome P-450; Triticum aestivum; oxidation; diclofop; enzyme activity; 2,4-D; oxygenases
Abstract:
... Wheat (Triticum aestivum L. cv Etoile de Choisy) microsomes catalyzed the cytochrome P-450-dependent oxidation of the herbicide diclofop to three hydroxy-diclofop isomers. Hydroxylation was predominant at carbon 4, with migration of chlorine to carbon 5 (67%) and carbon 3 (25%). The 2,4-dichloro-5-hydroxy isomer was identified as a minor reaction product (8%). Substrate-specificity studies showed ...
DOI:
10.1104/pp.100.2.874
PubMed:
16653070

38. Barley cbf3 gene identification, expression pattern, and map location

Author:
Choi, D.W.; Rodriguez, E.M.; Close, T.J.
Source:
Plant physiology 2002 v.129 no.4 pp. 1781-1787
ISSN:
0032-0889
Subject:
Hordeum vulgare; barley; grain crops; food crops; Triticum aestivum; wheat; seedlings; plant extracts; plant proteins; transcription factors; genes; gene expression; Oryza sativa; rice; Arabidopsis thaliana; chromosome mapping; chromosomes; amino acid sequences; nucleotide sequences; chemical constituents of plants
Abstract:
... Although cold and drought adaptation in cereals and other plants involve the induction of a large number of genes, inheritance studies in Triticeae (wheat [Triticum aestivum], barley [Hordeum vulgare], and rye [Secale cereale]) have revealed only a few major loci for frost or drought tolerance that are consistent across multiple genetic backgrounds and environments. One might imagine that these lo ...
PubMed:
12177491
PubMed Central:
PMC166766

39. Blufensin1 Negatively Impacts Basal Defense in Response to Barley Powdery Mildew

Author:
Meng, Yan; Moscou, Matthew J.; Wise, Roger P.
Source:
Plant physiology 2009 v.149 no.1 pp. 271-285
ISSN:
0032-0889
Subject:
Phytoplasma; rice; barley; alleles; Blumeria graminis; Hordeum vulgare; resistance to penetration; Oryza sativa; barley protein; wheat; peptides; gene silencing; gene expression; powdery mildew; resistance mechanisms; Triticum aestivum; Barley stripe mosaic virus
Abstract:
... Plants have evolved complex regulatory mechanisms to control the defense response against microbial attack. Both temporal and spatial gene expression are tightly regulated in response to pathogen ingress, modulating both positive and negative control of defense. BLUFENSIN1 (BLN1), a small peptide belonging to a novel family of proteins in barley (Hordeum vulgare), is highly induced by attack from ...
DOI:
10.1104/pp.108.129031
PubMed:
19005086
PubMed Central:
PMC2613711

40. Calmodulin is involved in heat shock signal transduction in wheat

Author:
Liu, H.T.; Li, B.; Shang, Z.L.; Li, X.Z.; Mu, R.L.; Sun, D.Y.; Zhou, R.G.
Source:
Plant physiology 2003 v.132 no.3 pp. 1186-1195
ISSN:
0032-0889
Subject:
Triticum aestivum; wheat; plant proteins; calcium; calmodulin; messenger RNA; protein content; heat shock proteins; gene expression regulation; protein synthesis; heat stress; signal transduction; nucleotide sequences
DOI:
10.1104/pp.102.018564
PubMed:
12857801
PubMed Central:
PMC167059

41. Cell Walls of Developing Wheat Starchy Endosperm: Comparison of Composition and RNA-Seq Transcriptome

Author:
Till K. Pellny; Alison Lovegrove; Jackie Freeman; Paola Tosi; Christopher G. Love; J. Paul Knox; Peter R. Shewry; Rowan A.C. Mitchell
Source:
Plant physiology 2012 v.158 no.2 pp. 612-627
ISSN:
0032-0889
Subject:
Arabidopsis thaliana; Triticum aestivum; arabinoxylan; callose; cell walls; cellulose; endosperm; filling period; genes; hydrolysis; pectins; starch; transcriptome; wheat; whole grain foods; xylan
Abstract:
... The transcriptome of the developing starchy endosperm of hexaploid wheat (Triticum aestivum) was determined using RNA-Seq isolated at five stages during grain fill. This resource represents an excellent way to identify candidate genes responsible for the starchy endosperm cell wall, which is dominated by arabinoxylan (AX), accounting for 70% of the cell wall polysaccharides, with 20% (1,3;1,4)-β-D ...
DOI:
10.1104/pp.111.189191
PubMed:
22123899
PubMed Central:
PMC3271754

42. Characterization of a cold-regulated wheat gene related to Arabidopsis cor47

Author:
Guo, W.; Ward, R.W.; Thomashow, M.F.
Source:
Plant physiology 1992 v.100 no.2 pp. 915-922
ISSN:
0032-0889
Subject:
Triticum aestivum; Arabidopsis thaliana; complementary DNA; structural genes; plant proteins; nucleotide sequences; amino acid sequences; threonine; histidine; messenger RNA; gene expression; seeds; cold; acclimation; leaves; roots; abscisic acid; water stress; glycine (amino acid)
Abstract:
... The cDNA clone pWG1 represents a gene, designated cor39, from Triticum aestivum L. cv Winoka (a winter wheat) that is related to a cold-regulated Arabidopsis thaliana L. (Heyn) gene, cor47. In vitro transcription/translation experiments in conjunction with DNA sequence analysis indicated that cor39 encodes a hydrophilic polypeptide of 39 kD (isoelectric point of 7.5), designated COR39. The polypep ...
DOI:
10.1104/pp.100.2.915
PubMed:
16653076

43. Characterization of a granule-bound starch synthase isoform found in the pericarp of wheat

Author:
Nakamura, T.; Vrinten, P.; Hayakwa, K.; Ikeda, J.
Source:
Plant physiology 1998 v.118 no.2 pp. 451-459
ISSN:
0032-0889
Subject:
Triticum aestivum; endosperm; pollen; protein composition; amylose; biosynthesis; glycogen (starch) synthase; isozymes; physicochemical properties; enzyme activity; pericarp; ultrastructure; amino acid sequences
Abstract:
... Waxy wheat (Triticum aestivum L.) lacks the waxy protein, which is also known as granule-bound starch synthase I (GBSSI). The starch granules of waxy wheat endosperm and pollen do not contain amylose and therefore stain red-brown with iodine. However, we observed that starch from pericarp tissue of waxy wheat stained blue-black and contained amylose. Significantly higher starch synthase activity w ...
PubMed:
9765530
PubMed Central:
PMC34820

44. Characterization of a low-molecular-weight glutenin subunit gene from bread wheat and the corresponding protein that represents a major subunit of the glutenin polymer

Author:
Masci, S.; D'Ovidio, R.; Lafiandra, D.; Kasarda, D.D.
Source:
Plant physiology 1998 v.118 no.4 pp. 1147-1158
ISSN:
0032-0889
Subject:
viscoelasticity; glutenins; wheat flour; DNA; cysteine; amino acid sequences; genes; Triticum aestivum; food composition; protein composition
Abstract:
... Both high- and low-molecular-weight glutenin subunits (LMW-GS) play the major role in determining the viscoelastic properties of wheat (Triticum aestivum L.) flour. To date there has been no clear correspondence between the amino acid sequences of LMW-GS derived from DNA sequencing and those of actual LMW-GS present in the endosperm. We have characterized a particular LMW-GS from hexaploid bread w ...
PubMed:
9847089
PubMed Central:
PMC34731

45. Characterization of cadmium binding, uptake, and translocation in intact seedlings of bread and durum wheat cultivars

Author:
Hart, J.J.; Welch, R.M.; Norvell, W.A.; Sullivanm, L.A.; Kochian, L.V.
Source:
Plant physiology 1998 v.116 no.4 pp. 1413-1420
ISSN:
0032-0889
Subject:
Triticum turgidum subsp. durum; Triticum aestivum; seedlings; roots; cadmium; ion transport; cell walls; xylem; shoots; seeds; radiolabeling; kinetics; plasma membrane; translocation (plant physiology); binding sites
Abstract:
... High Cd content in durum wheat (Triticum turgidum L. var durum) grain grown in the United States and Canada presents potential health and economic problems for consumers and growers. In an effort to understand the biological processes that result in excess Cd accumulation, root Cd uptake and xylem translocation to shoots in seedlings of bread wheat (Triticum aestivum L.) and durum wheat cultivars ...

46. Characterization of the endoproteases appearing during wheat grain development

Author:
Dominguez, F.; Cejudo, F.J.
Source:
Plant physiology 1996 v.112 no.3 pp. 1211-1217
ISSN:
0032-0889
Subject:
Triticum aestivum; seed development; developmental stages; chlorophyll; gliadin; enzyme activity; temporal variation; enzyme inhibitors; serine proteinases; metalloproteinases; aspartic proteinases; thiols; cathepsins; endosperm; gibberellic acid; abscisic acid
Abstract:
... The pattern of endoproteolytic activities occurring during wheat (Triticum aestivum, cultivar Chinese Spring) grain development was investigated. Total endoprotease activity, assayed in solution with azocasein as a substrate, increased during the early stages of grain development to reach a maximum at 15 d postanthesis that was maintained until the grain was mature. Endoprotease activity was also ...

47. Characterization of the genes encoding the cytosolic and plastidial forms of ADP-glucose pyrophosphorylase in wheat endosperm

Author:
Burton, R.A.; Johnson, P.E.; Beckles, D.M.; Fincher, G.B.; Jenner, H.L.; Naldrett, M.J.; Denyer, K.
Source:
Plant physiology 2002 v.130 no.3 pp. 1464-1475
ISSN:
0032-0889
Subject:
Triticum aestivum; wheat; food crops; endosperm; seed development; cytosol; plastids; plant proteins; glycosyltransferases; messenger RNA; complementary DNA; Hordeum vulgare; barley; Oryza sativa; rice; Zea mays; corn; Cicer arietinum; chickpeas; ion exchange chromatography; sequence analysis; nucleotide sequences; amino acid sequences
Abstract:
... In most species, the synthesis of ADP-glucose (Glc) by the enzyme ADP-Glc pyrophosphorylase (AGPase) occurs entirely within the plastids in all tissues so far examined. However, in the endosperm of many, if not all grasses, a second form of AGPase synthesizes ADP-Glc outside the plastid, presumably in the cytosol. In this paper, we show that in the endosperm of wheat (Triticum aestivum), the cytos ...
PubMed:
12428011
PubMed Central:
PMC166665

48. Characterization of water channels in wheat root membrane vesicles

Author:
Niemietz, C.M.; Tyerman, S.D.
Source:
Plant physiology 1997 v.115 no.2 pp. 561-567
ISSN:
0032-0889
Subject:
Triticum aestivum; roots; cell membranes; water uptake; measurement; osmotic pressure; membrane permeability; diffusion; mercury compounds; energy balance
Abstract:
... The functional significance of water channels in wheat (Triticum aestivum L.) root membranes was assessed using light scattering to measure vesicle shrinking in response to osmotic gradients rapidly imposed in a stopped flow apparatus. Vesicles were obtained from both a plasma membrane fraction and a plasma membrane-depleted endomembrane fraction including tonoplast vesicles. Osmotic water permeab ...

49. Characterization of zinc uptake, binding, and translocation in intact seedlings of bread and durum wheat cultivars

Author:
Hart, J.J.; Norvell, W.A.; Welch, R.M.; Sullivan, L.A.; Kochian, L.V.
Source:
Plant physiology 1998 v.118 no.1 pp. 219-226
ISSN:
0032-0889
Subject:
Triticum aestivum; Triticum turgidum; seedlings; roots; zinc; ion transport; measurement; temperature; calcium; cell walls; shoots; metabolism; radiolabeling; cultivars; genetic variation; translocation (plant physiology); binding sites
Abstract:
... Durum wheat (Triticum turgidum L. var durum) cultivars exhibit lower Zn efficiency than comparable bread wheat (Triticum aestivum L.) cultivars. To understand the physiological mechanism(s) that confers Zn efficiency, this study used 65Zn to investigate ionic Zn2+ root uptake, binding, and translocation to shoots in seedlings of bread and durum wheat cultivars. Time-dependent Zn2+ accumulation dur ...

50. Circadian-regulated transcription of the psbD light-responsive promoter in wheat chloroplasts

Author:
Nakahira, Y.; Baba, K.; Yoneda, A.; Shiina, T.; Toyoshima, Y.
Source:
Plant physiology 1998 v.118 no.3 pp. 1079-1088
ISSN:
0032-0889
Subject:
chloroplasts; messenger RNA; quantitative analysis; transcription (genetics); gene expression; diurnal variation; Triticum aestivum; mutants; genetic variation; circadian rhythm; promoter regions; light
Abstract:
... The level of mRNAs derived from the plastid-coded psbD light-responsive promoter (LRP) is controlled by a circadian clock(s) in wheat (Triticum aestivum). The circadian oscillations in the LRP mRNA level persisted for at least three cycles in continuous light and for one cycle in continuous dark, with maxima in subjective morning and minima in subjective early night. In vitro transcription in chlo ...
PubMed:
9808753
PubMed Central:
PMC34781