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You searched for: Publication year rev 8003-1997 Remove constraint Publication year rev: 8003-1997 Subject term Triticum aestivum Remove constraint Subject term: Triticum aestivum Subject term seedlings Remove constraint Subject term: seedlings
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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. Characterization of dynamics of the psbD light-induced transcription in mature wheat chloroplasts

Author:
Junko Satoh; Kyoko Baba; Yoichi Nakahira; Takashi Shiina; Yoshinori Toyoshima
Source:
Plant molecular biology 1997 v.33 no.2 pp. 267-278
ISSN:
0167-4412
Subject:
Triticum aestivum; chloroplasts; dark adaptation; messenger RNA; mutation; operon; promoter regions; protein synthesis; seedlings; transcription (genetics); wheat
Abstract:
... Dynamical aspects of three chloroplast promoters responding to change in light condition were examined in mature chloroplasts of wheat (Triticum aestivum) by in vitro transcription. The wheat psbD/C operon has four distinct promoters, two of which named as D/C-3 and D/C-4 promoters dominantly function in mature chloroplasts to produce the mRNAs encoding D2/CP43 and CP43 alone, respectively. Activi ...
DOI:
10.1023/A:1005799001271

3. Differential induction of lipoxygenase isoforms in wheat upon treatment with rust fungus elicitor, chitin oligosaccharides, chitosan, and methyl jasmonate

Author:
Bohland, C.; Balkenhohl, T.; Loers, G.; Feussner, I.; Grambow, H.J.
Source:
Plant physiology 1997 v.114 no.2 pp. 679-685
ISSN:
0032-0889
Subject:
protein synthesis; dose response; chitosan; seedlings; jasmonic acid; linoleate 13S-lipoxygenase; Puccinia graminis; Triticum aestivum; leaves; plant pathogenic fungi; oligosaccharides; chitin; enzyme activity; isozymes; protein composition
Abstract:
... A glycopeptide elicitor prepared from germ tubes of the rust fungus Puccinia graminis Pers. f. sp. tritici Erikss. & Henn (Pgt),as well as chitin oligosaccharides, chitosan, and methyl jasmonate (MJ) stimulated lipoxygenase (LOX) activity (E.C. 1.13.11.12) in wheat (Triticum aestivum) leaves. Immunoblot analysis using anti-LOX antibodies revealed the induction of 92- and 103-kD LOX species after P ...

4. Dynamics of nutrient remobilisation from seed of wheat genotypes during imbibition, germination and early seedling growth

Author:
M. Moussavi-Nik; Z. Rengel; J.N. Pearson; G. Hollamby
Source:
Plant and soil 1997 v.197 no.2 pp. 271-280
ISSN:
0032-079X
Subject:
Triticum aestivum; calcium; copper; cultivars; dry matter accumulation; endosperm; genotype; imbibition; iron; manganese; mature plants; nutrient content; nutrients; phosphorus; potassium; roots; seed germination; seedling growth; seedlings; shoots; testa; wheat; zinc
Abstract:
... The changes in nutrient content of grain tissues and seedling parts of two wheat genotypes (Triticum aestivum L., Excalibur and Janz) with low or high seed Zn content were followed from imbibition to early seedling development (12 days). The grains were separated into seed coat, endosperm and embryo, while the seedlings were separated into roots and shoots. The dry weight of the seed coat did not ...
DOI:
10.1023/A:1004227400287

5. Effect of bunt infection on the frost resistance of wheat varieties and of lines containing Bt genes

Author:
Veisz, O.B.; Szunics, L.
Source:
Plant breeding 1997 v.116 no.2 pp. 123-126
ISSN:
0179-9541
Subject:
seedlings; fungal diseases of plants; varieties; frost resistance; Triticum aestivum; disease resistance; Tilletia laevis; genes
DOI:
10.1111/j.1439-0523.1997.tb02165.x

6. Effect of salinity on the growth and nitrogen uptake by wheat seedlings

Author:
Botella, M.A.; Martinez, V.; Nieves, M.; Cerda, A.
Source:
Journal of plant nutrition 1997 v.20 no.6 pp. 793-804
ISSN:
0190-4167
Subject:
root shoot ratio; calcium nitrate; salinity; phytotoxicity; seedlings; nutrient uptake; dry matter accumulation; Triticum aestivum; sodium chloride; ammonium sulfate; roots; shoots
Abstract:
... Saline conditions affect nitrogen (N) assimilation of higher plants. To study the effect of salinity and N source on growth and N uptake in wheat (Triticum aestivum L.), plants were grown in a growth chamber under controlled conditions. The nutrient solution contained 4 mM N, applied as either calcium nitrate [Ca(NO3)2] or ammonium sulfate [(NH4)2SO4], or a mixture of both, and the salinity treatm ...
DOI:
10.1080/01904169709365295

7. Effects of barley yellow dwarf virus on root and shoot growth of winter wheat seedlings grown in aeroponic culture

Author:
Hoffman, T.K.; Kolb, F.L.
Source:
Plant disease 1997 v.81 no.5 pp. 497-500
ISSN:
0191-2917
Subject:
infection; Triticum aestivum; cultivars; winter wheat; seedlings; adverse effects; shoots; roots; seedling growth
Abstract:
... Seedlings of eight soft red winter wheat (Triticum aestivum) cultivars were grown in an aeroponic mist box to study the effects of barley yellow dwarf virus (BYDV) on root and shoot growth and to look for differences in root and shoot growth among cultivars. The cultivars selected for the study were Caldwell, Cardinal, Clark, Howell, IL 87-2834, Tyler, and pioneer brands 2548 and 2555. A split-plo ...
DOI:
10.1094/PDIS.1997.81.5.497

8. Expression of Aluminum Tolerance Transferred from Atlas 66 to Hard Winter Wheat

Author:
James P. Johnson; Brett F. Carver; V. C. Baligar
Source:
Crop science 1997 v.37 no.1 pp. 103-108
ISSN:
0011-183X
Subject:
crossing; Triticum aestivum; durum wheat; aluminum; metal tolerance; genetic resistance; genes; cultivars; acid soils; genetic variation; gene expression; seedlings; roots; bioassays; inheritance (genetics)
Abstract:
... Genetic improvement of acid soil tolerance of wheat (Triticum aestivum L.) adaptable to the Great Plains involves the transfer of AI tolerance from other gene pools. One hindrance may be the interaction of gene effect with genetic background. Aluminum-tolerant nearisoĺines of hard red winter (HRW) wheat were selected on the basis of the hematoxylin assay using ‘Atlas 66’ as the source of tolerance ...
DOI:
10.2135/cropsci1997.0011183X003700010016x

9. Genetic analysis of resistance to Puccinia striiformis in the wheat differential cultivars Heines VII, Heines Peko and Strubes Dickkopf

Author:
Calonnec, A.; Johnson, R.; Vallavielle-Pope, C. de.
Source:
Plant pathology 1997 v.46 no.3 pp. 373-386
ISSN:
0032-0862
Subject:
cultivars; alleles; genetic resistance; seedlings; gene interaction; virulence; heterozygosity; crossing; Triticum aestivum; disease resistance; genetic techniques and protocols; homozygosity; mixed infection; Puccinia striiformis
DOI:
10.1046/j.1365-3059.1997.d01-21.x

10. Genetic variation for virulence and resistance in the wheat-Mycosphaerella graminicola pathosystem. III. Comparative seedling and adult plant experiments

Author:
Kema, G.H.J.; Silfhout, C.H. van.
Source:
Phytopathology 1997 v.87 no.3 pp. 266-272
ISSN:
0031-949X
Subject:
cultivars; plant diseases and disorders; Mycosphaerella graminicola; seedlings; host-parasite relationships; disease control; plant pathogenic fungi; Triticum aestivum; Triticum turgidum subsp. durum; disease resistance; genetic variation; pathotypes; virulence; Netherlands
Abstract:
... Fourteen Dutch Mycosphaerella graminicola isolates were studied for their virulence to 22 wheat cultivars in the seedling stage in an experiment set up as a completely randomized block design with three repetitions, Isolate X cultivar interactions were highly significant. Cluster analyses were applied to select three isolates with significantly different virulence characteristics for both disease ...
DOI:
10.1094/PHYTO.1997.87.3.266
PubMed:
18945169

11. Identification and expression of the gene Yr2 for resistance to Puccinia striiformis in the wheat differential cultivars Heines Kolben, Heines Peko and Heines VII

Author:
Calonnec, A.; Johnson, R.; Vallavielle-Pope, C. de.
Source:
Plant pathology 1997 v.46 no.3 pp. 387-396
ISSN:
0032-0862
Subject:
crossing; Puccinia striiformis; Triticum aestivum; disease resistance; genetic resistance; gene expression; cultivars; alleles; virulence; seedlings; planting date; photoperiod; light intensity; lighting; allelism; gene interaction
DOI:
10.1046/j.1365-3059.1997.d01-22.x

12. Mapping Genes Conferring and Suppressing Leaf Rust Resistance in Wheat

Author:
J. C. Nelson; R. P. Singh; J. E. Autrique; M. E. Sorrells
Source:
Crop science 1997 v.37 no.6 pp. 1928-1935
ISSN:
0011-183X
Subject:
Triticum turgidum; rust diseases; hybrids; seedlings; gene interaction; genetic markers; Triticum aestivum; inbred lines; disease resistance; chromosome mapping; Puccinia recondita
Abstract:
... Leaf rust, caused by Puccinia recondita Roberge ex Desmaz. f. sp. tritici Eriks. & E. Henn., is a serious disease of wheat (Triticum aestivum L.) worldwide. We evaluated leaf rust resistance in a RFLP-mapping population of wheat inbred lines developed from a synthetic [T. turgidum L. × T. touschii (Coss.) Schmal.] × T. aestivum cross, using inoculation trials performed on seedlings and adult plant ...
DOI:
10.2135/cropsci1997.0011183X003700060043x

13. Mechanosensitive expression of a lipoxygenase gene in wheat

Author:
Mauch, F.; Kmecl, A.; Schaffrath, U.; Volrath, S.; Gorlach, J.; Ward, E.; Ryals, J.; Dudler, R.
Source:
Plant physiology 1997 v.114 no.4 pp. 1561-1566
ISSN:
0032-0889
Subject:
messenger RNA; wind; dose response; seedlings; stress response; linoleate 13S-lipoxygenase; amino acid sequences; gene expression; transcription (genetics); Triticum aestivum; genes; enzyme activity
Abstract:
... Touch stimulation of wheat (Triticum aestivum L.) seedlings led to a strong and dose-dependent increase in the level of lipoxygenase mRNA transcripts. The touch-induced response occurred within 1 h and was transient. A similar response was observed after wind treatment and wounding. The mechanical strain-regulated lipoxygenase might translate mechanical strain into lipoxygenase pathway-dependent g ...
PubMed:
9276964
PubMed Central:
PMC158451

14. Physiological changes on agricultural crops induced by different ambient ozone exposure regimes: I. Effects on photosynthesis and assimilate allocation in spring wheat

Author:
U. MEYER; B. KÖLLNER; J. WILLENBRINK; G. H. M. KRAUSE
Source:
new phytologist 1997 v.136 no.4 pp. 645-652
ISSN:
0028-646X
Subject:
flowering; seedlings; photoinhibition; carbon; glucose; fluorescence; starch; electron transfer; heat stress; Triticum aestivum; plasma membrane; fructose; leaves; solar radiation; photosynthates; sucrose; ozone; vegetative growth; phytotoxicity; dosage; biochemical pathways; chlorophyll
Abstract:
... Spring wheat (Triticum aeslivum cv. Nandu) cultivated under glasshouse conditions was exposed to ozone in large fumigation chambers for 2 wk. Different exposure regimes were applied as constant concentrations as well as with ozone peaks, partly under equal dose‐conditions, in times of high solar radiation during different stages of development (seedling, late tillering, anthesis). Chlorophyll fluo ...
DOI:
10.1046/j.1469-8137.1997.00777.x

15. RNase activity decreases following a heat shock in wheat leaves and correlates with its posttranslational modification

Author:
Chang, S.C.; Gallie, D.R.
Source:
Plant physiology 1997 v.113 no.4 pp. 1253-1263
ISSN:
0032-0889
Subject:
Triticum aestivum; seedlings; leaves; heat stress; ribonucleases; isozymes; phosphorylation; enzyme activity; measurement; messenger RNA; gene expression; stress response
Abstract:
... Heat shock results in a coordinate loss of translational efficiency and an increase in mRNA stability in plants. The thermally mediated increase in mRNA half-life could be a result of decreased expression and/or regulation of intracellular RNase enzyme activity. We have examined the fate of both acidic and neutral RNases in wheat seedlings that were subjected to a thermal stress. We observed that ...

16. Responses of Six Crop Species to Solution Zinc2+ Activities Buffered with HEDTA

Author:
D. R. Parker
Source:
Soil Science Society of America journal 1997 v.61 no.1 pp. 167-176
ISSN:
0361-5995
Subject:
interspecific variation; Zea mays; Glycine max; zinc; phytotoxicity; seedlings; nutrient deficiencies; nutrient-nutrient interactions; Medicago sativa; dry matter accumulation; Triticum aestivum; Thinopyrum elongatum; chemical constituents of plants; phosphorus; Solanum lycopersicum var. lycopersicum
Abstract:
... Zinc contamination has long hampered the use of conventional nutrient solutions for attaining reproducible and severe Zn deficiencies. Chelator-buffered solutions show promise for precisely imposing micronutrient deficiencies, but further studies are needed to fully evaluate the method and to develop methods to avoid Zn-deficiency-induced P toxicity. In a greenhouse study, seedlings of maize (Zea ...
DOI:
10.2136/sssaj1997.03615995006100010025x

17. Restoration of wild-type virulence to Tri5 disruption mutants of Gibberella zeae via gene reversion and mutant complementation

Author:
Proctor, R.H.; Hohn, T.M.; McCormick, S.P.
Source:
Microbiology 1997 v.143 no.pt.8 pp. 2583-2591
ISSN:
1350-0872
Subject:
Fusarium graminearum; genetic transformation; fungal diseases of plants; seedlings; wheat; genetic complementation; genes; mutants; trichothecenes; Triticum aestivum; virulence
Abstract:
... Gibberella zeae is a pathogen of small grain crops and produces trichothecene mycotoxins in infected host tissue. The role of trichothecenes in the virulence of G. zeae was previously investigated using trichothecene-non-producing mutants that were generated via transformation-mediated disruption of a gene (Tri5) that encodes the first enzyme in the trichothecene biosynthetic pathway. The mutants ...
Handle:
10113/26147

18. Role of aconitate isomerase in trans-aconitate accumulation in plants

Author:
Thompson, J.F.; Schaefer, S.C.; Madison, J.T.
Source:
Journal of agricultural and food chemistry 1997 v.45 no.9 pp. 3684-3688
ISSN:
0021-8561
Subject:
Triticum aestivum; seedlings; grass tetany
Abstract:
... Wheat seedlings (Triticum aestivum) grown on single salt solutions were analyzed for trans-aconitate and aconitate isomerase to determine the possible relationship between them and to determine if they might be related to the incidence of grass tetany. The trans-aconitate activity at the end of a two-day growth period and changes in trans-aconitate activity during this period varied widely and wer ...
DOI:
10.1021/jf970131s

19. The effect of hydroxamic acid concentration at late growth stages of wheat on the performance of the aphid Sitobion avenae

Author:
Nicol, D.; Wratten, S.D.
Source:
Annals of applied biology 1997 v.130 no.3 pp. 387-396
ISSN:
0003-4746
Subject:
cultivars; inflorescences; dimboa; genetic resistance; seedlings; Sitobion avenae; Triticum aestivum; hydroxamic acids; pest resistance
DOI:
10.1111/j.1744-7348.1997.tb07669.x

20. ent-Kaurene synthase is located in proplastids of meristematic shoot tissues

Author:
Aach, H.; Bode, H.; Robinson, D.G.; Graebe, J.E.
Source:
Planta 1997 v.202 no.2 pp. 211-219
ISSN:
0032-0935
Subject:
seedlings; age; shoot meristems; Pisum sativum; cell division; Triticum aestivum; length; leaves; shikimic acid; apical meristems; ligases; glyceraldehyde-3-phosphate dehydrogenase; enzyme activity; seed germination; internodes; tillers; chloroplasts
Abstract:
... Previous studies have indicated that entkaurene synthase (KS) is located in the proplastid stroma of rapidly dividing plant tissues. Here we present further and more direct evidence for this hypothesis and follow the activity of KS throughout the entire vegetative growth period of wheat plants. During germination of wheat caryopses, KS activity was maximal for a short period culminating on the thi ...
DOI:
10.1007/s004250050121