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You searched for: Publication Year 1996 Remove constraint Publication Year: 1996 Subject abscisic acid Remove constraint Subject: abscisic acid
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1. Abscisic acid and ancymidol promote conversion of somatic embryos to plantlets and secondary embryogenesis in Asparagus officinalis L

Author:
Li, B.C.; Wolyn, D.J.
Source:
In vitro cellular & developmental biology 1996 v.32 no.4 pp. 223-226
ISSN:
1054-5476
Subject:
Asparagus officinalis; embryo (plant); somatic embryogenesis; micropropagation; abscisic acid; embryo culture; culture media
DOI:
10.1007/BF02822691

2. Abscisic acid causes changes in gene expression involved in the induction of the landform of the livewort Riccia fluitans L. [Erratum: 1996, v. 199 (1), p. 169.]

Author:
Hellwege, E.M.; Dietz, K.J.; Hartung, W.
Source:
Planta 1996 v.198 no.3 pp. 423-432
ISSN:
0032-0935
Subject:
Riccia; abscisic acid; polypeptides; gene expression; genes; complementary DNA; amino acid sequences; molecular weight; messenger RNA; drought tolerance; vacuoles; tonoplast; biosynthesis; nucleotide sequences; habitats
Abstract:
... The conversion of the submerged form of Riccia fluitans to the landform either by transfer to a moist solid surface or by treatment with abscisic acid (ABA), is accompanied by the formation of a set of new polypeptides and concomitant down-regulation of other polypeptides. Changes in gene expression were analyzed by two-dimensional separations of proteins and differential screening of a cDNA libra ...
DOI:
10.1007/BF00620059

3. Abscisic acid induces the alcohol dehydrogenase gene in Arabidopsis

Author:
De Bruxelles, G.L.; Peacock, W.J.; Dennis, E.S.; Dolferus, R.
Source:
Plant physiology 1996 v.111 no.2 pp. 381-391
ISSN:
0032-0889
Subject:
Arabidopsis thaliana; roots; alcohol dehydrogenase; enzyme activity; genes; gene expression; abscisic acid; dose response; anaerobic conditions; temperature; mutants; genetic variation; messenger RNA; transgenic plants; plant morphology; promoter regions; phenotype; stress response
Abstract:
... Exogenous abscisic acid (ABA) induced the alcohol dehydrogenase gene (Adh) in Arabidopsis roots. Both the G-box-1 element and the GT/GC motifs (anaerobic response element) were required for Adh inducibility. Measurement of endogenous ABA levels during stress treatment showed that ABA levels increased during dehydration treatment but not following exposure to either hypoxia or low temperature. Arab ...
PubMed:
8787023
PubMed Central:
PMC157847

4. Abscisic acid-deficient plants do not accumulate proteinase inhibitor II following systemin treatment

Author:
Pena-Cortes, H.; Prat, S.; Atzorn, R.; Wasternack, C.; Willmitzer, L.
Source:
Planta 1996 v.198 no.3 pp. 447-451
ISSN:
0032-0935
Subject:
Solanum tuberosum; Solanum lycopersicum var. lycopersicum; gene expression; abscisic acid; messenger RNA; jasmonic acid; linoleic acid; biosynthesis; mechanical damage; peptides
Abstract:
... The role of systemin in Pin2 gene expression was analyzed in wild-type plants of potato (Solanum tuberosum L.) and tomato (Lycopersicon esculentum Mill.), as well as in abscisic acid (ABA)-deficient tomato (sitiens) and potato (droopy) plants. The results showed that systemin initiates Pin2 mRNA accumulation only in wildtype tomato and potato plants. As in the situation after mechanical wounding, ...
DOI:
10.1007/BF00620062

5. Apoptosis in barley aleurone during germination and its inhibition by abscisic acid

Author:
Wang, M.; Oppedijk, B.J.; Lu, X.; Duijn, B. van.; Schilperoort, R.A.
Source:
Plant molecular biology 1996 v.32 no.6 pp. 1125-1134
ISSN:
0167-4412
Subject:
seed germination; protoplasts; DNA fragmentation; phosphoprotein phosphatase; Hordeum vulgare; spatial distribution; osmotic pressure; gibberellic acid; aleurone cells; abscisic acid; enzyme activity; alpha-amylase; apoptosis
Abstract:
... During germination of barley grains, DNA fragmentation was observed in the aleurone. The appearance of DNA fragmentation in the aleurone layer, observed by TUNEL staining in aleurone sections, started near the embryo and extended to the aleurone cells far from the embryo in a time dependent manner. The same spatial temporal activities of hydrolytic enzymes such as alpha-amylase were observed in al ...
DOI:
10.1007/BF00041396
PubMed:
9002611

6. The Arabidopsis homeobox gene ATHB-7 is induced by water deficit and by abscisic acid

Author:
Soderman, E.; Mattsson, J.; Engstrom, P.
Source:
plant journal 1996 v.10 no.2 pp. 375-381
ISSN:
0960-7412
Subject:
Arabidopsis thaliana; DNA-binding proteins; transcription factors; messenger RNA; osmosis; abscisic acid; gene expression; mutants; transcription (genetics); regulator genes
Abstract:
... Homeodomain-leucine zipper (HD-Zip) proteins are putative transcription factors encoded by a class of recently discovered homeobox genes as yet found only in plants. This paper reports on the characterization of one of these genes, ATHB-7, in Arabidopsis thaliana. ATHB-7 transcripts were present in all organs of the plant at low levels, but expression was induced several-fold by water deficit, osm ...
DOI:
10.1046/j.1365-313X.1996.10020375.x
PubMed:
8771791

7. Arabidopsis mutants with a reduced seed dormancy

Author:
Leon-Kloosterziel, K.M.; Bunt, G.A. van de.; Zeevaart, J.A.D.; Koornneef, M.
Source:
Plant physiology 1996 v.110 no.1 pp. 233-240
ISSN:
0032-0889
Subject:
Arabidopsis thaliana; seed development; seed dormancy; mutants; seeds; abscisic acid; ethylene; auxins; cytokinins; gibberellins; biosynthesis; genes; gene expression; chemical constituents of plants; genotype
Abstract:
... The development of seed dormancy is an aspect of seed maturation, the last stage of seed development. To isolate mutants of Arabidopsis thaliana that are affected in this process, we selected directly for the absence of dormancy among freshly harvested M2 seeds. The screen yielded two mutants exhibiting a reduced dormancy, rdo1 and rdo2, that are specifically affected in dormancy determined by the ...
PubMed:
8587986
PubMed Central:
PMC157714

8. Biological activity of optically pure C-1 altered abscisic acid analogs in Brassica napus microspore embryos

Author:
Hays, D.B.; Rose, P.; Abrams, S.R.; Moloney, M.M.
Source:
Journal of plant growth regulation 1996 v.15 no.1 pp. 5-11
ISSN:
0721-7595
Subject:
messenger RNA; germination; dose response; embryo (plant); aldehydes; isomers; gene expression; genes; esters; Brassica napus; mutants; abscisic acid; molecular conformation; alcohols
Abstract:
... We have examined the effects of stereochemically pure analogs of abscisic acid (ABA) on three responses in Brassica napus microspore embryos. The analogs used include modifications to natural (S-) (+)-ABA (=N-ABA) at the C-1 and C-1' positions. At the C-1 position, the carboxylic acid function was replaced with an alcohol, aldehyde, or methyl ester functional group, and at the chiral C-1' position ...
DOI:
10.1007/BF00213128

9. Carbon dioxide induces increases in guard cell cytosolic free calcium

Author:
Webb, A.A.R.; McAinsh, M.R.; Mansfield, T.A.; Hetherington, A.M.
Source:
plant journal 1996 v.9 no.3 pp. 297-304
ISSN:
0960-7412
Subject:
Commelina communis; stomata; guard cells; cytosol; chemical composition; calcium; ions; quantitative analysis; carbon dioxide; abscisic acid
Abstract:
... The hypothesis that increases in cytosolic free calcium ([Ca2+]I) are a component of the CO2 signal transduction pathway in stomatal guard cells of Commelina communis has been investigated. This hypothesis was tested using fura-2 fluorescence ratio photometry to measure changes in guard cell [Ca2+]i in response to challenge with 700 microliter l-1 CO2. Elevated CO2 induced increases in guard cell ...
DOI:
10.1046/j.1365-313X.1996.09030297.x

10. Cell-wall changes and cell tension in response to cold acclimation and exogenous abscisic acid in leaves and cell cultures

Author:
Rajashekar, C.B.; Lafta, A.
Source:
Plant physiology 1996 v.111 no.2 pp. 605-612
ISSN:
0032-0889
Subject:
Vitis; Malus domestica; Ilex glabra; Euonymus fortunei; Euonymus kiautschovicus; cultured cells; leaves; frost injury; frost; cold tolerance; acclimation; abscisic acid; cell walls; plant-water relations; measurement; temperature
Abstract:
... Freeze-induced cell tensions were determined by cell water relations in leaves of broadleaf evergreen species and cell cultures of grapes (Vitis spp.) and apple (Malus domestica).Cell tensions increased in response to cold acclimation in leaves of broadleaf evergreen species during extracellular freezing, indicating a higher resistance to cell volume changes during freezing in cold-hardened leaves ...

11. Characterization of membrane properties in desiccation-tolerant and -intolerant carrot somatic embryos

Author:
Tetteroo, F.A.A.; Bruijn, A.Y. de.; Henselmans, R.N.M.; Wolkers, W.F.; Aelst, A.C. van.; Hoekstra, F.A.
Source:
Plant physiology 1996 v.111 no.2 pp. 403-412
ISSN:
0032-0889
Subject:
Daucus carota; embryo (plant); embryo culture; somatic embryogenesis; viability; chemical composition; phospholipids; fatty acids; quantitative analysis; potassium; carbohydrates; abscisic acid; measurement; germination; imbibition; temperature; developmental stages; ultrastructure; plasma membrane; stress response
Abstract:
... In previous studies, we have shown that carrot (Daucus carota L.) somatic embryos acquire complete desiccation tolerance when they are treated with abscisic acid during culture and subsequently dried slowly. With this manipulable system at hand, we have assessed damage associated with desiccation intolerance. Fast drying caused loss of viability, and all K+ and carbohydrates leached from the somat ...

12. 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 ...

13. Chilling, oxidative stress and antioxidant responses in Arabidopsis thaliana callus

Author:
O'Kane, D.; Gill, V.; Boyd, P.; Burdon, R.
Source:
Planta 1996 v.198 no.3 pp. 371-377
ISSN:
0032-0935
Subject:
Arabidopsis thaliana; glutathione; glutathione-disulfide reductase; catalase; hydrogen peroxide; cooling; lipid peroxidation; cold stress; cell membranes; oxidation; abscisic acid; callus
Abstract:
... Chilling of Arabidopsis thaliana (L.) Heynh. callus tissue to 4 degrees C led to conditions of oxidative stress, as indicated by increased levels of the products of peroxidative damage to cell membranes. Cellular H2O2 was also observed to increase initially upon chilling but by day 8 cellular levels had declined to below control levels. Although levels of catalase activity remained similar to thos ...
DOI:
10.1007/BF00620053
PubMed:
8717134

14. DNA methylation and Dc8-GUS transgene expression in carrot (Daucus carota L.)

Author:
Zhou, Y.; Magill, J.M.; Magill, C.W.; Newton, R.J.
Source:
Plant cell reports 1996 v.15 no.11 pp. 815-818
ISSN:
0721-7714
Subject:
Daucus carota; DNA methylation; transgenic plants; gene expression; genes; gene transfer; chimerism; beta-glucuronidase; enzyme activity; cytidine; abscisic acid; dose response; quantitative analysis
Abstract:
... DNA methylation has been associated with gene activity in differentiating and developing plant tissues. The objective of this study was to determine the involvement of methylation in the expression of a gene transferred into carrot (Daucus carota L.) tissues by particle bombardment. Expression of the Dc8-GUS gene construct in response to treatments with 5-azacytidine (5-azaC) and to in vitro methy ...
DOI:
10.1007/BF00233146
PubMed:
24178214

15. Differential expression of soybean cysteine proteinase inhibitor genes during development and in response to wounding and methyl jasmonate

Author:
Botella, M.A.; Xu, Y.; Prabha, T.N.; Zhao, Y.; Narasimhan, M.L.; Wilson, K.A.; Nielsen, S.S.; Bressan, R.A.; Hasegawa, P.M.
Source:
Plant physiology 1996 v.112 no.3 pp. 1201-1210
ISSN:
0032-0889
Subject:
Glycine max; proteinase inhibitors; embryo (plant); defense mechanisms; jasmonic acid; salicylic acid; abscisic acid; ethylene; recombinant DNA; amino acid sequences; cysteine proteinases; gene expression
Abstract:
... Three cysteine proteinase inhibitor cDNA clones (pL1, pR1, and pN2) have been isolated from a soybean (Glycine max L. Merr.) embryo library. The proteins encoded by the clones are between 60 and 70% identical and contain the consensus QxVxG motif and W residue in the appropriate spatial context for interaction with the cysteine proteinase papain. L1, R1, and N2 mRNAs were differentially expressed ...
PubMed:
8938418
PubMed Central:
PMC158047

16. Direct somatic embryogenesis from immature embryos of rosewood (Dalbergia latifolia Roxb.)

Author:
Rao, M.M.; Sita, G.L.
Source:
Plant cell reports 1996 v.15 no.5 pp. 355-359
ISSN:
0721-7714
Subject:
kinetin; dose response; sucrose; embryo (plant); Dalbergia latifolia; explants; somatic embryogenesis; zygote; 2,4-D; benzyladenine; micropropagation; abscisic acid; embryo culture; culture media
Abstract:
... Direct regeneration of somatic embryos was obtained from immature zygotic embryos of Dalbergia latifolia. Immature embryos dissected from green pods 90 d after flowering gave the highest frequency of somatic embryo formation. Preculture on high 2,4-D medium for 4 weeks induced direct somatic embryogenesis, which was expressed during the second culture phase in the presence of low 2,4-D along with ...
DOI:
10.1007/BF00232371

17. Disruption of microtubules by abscisic acid in guard cells of Vicia faba L

Author:
Jiang, C.J.; Nakajima, N.; Kondo, N.
Source:
Plant & cell physiology 1996 v.37 no.5 pp. 697-701
ISSN:
0032-0781
Subject:
cortex; stomatal movement; guard cells; Vicia faba; dose response; developmental stages; microtubules; abnormal development; abscisic acid; stomata
Abstract:
... ABA disrupted cortical microtubules in guard cells, but not in epidermal cells, with concomitant closure of stomata. Other plant growth regulators did not disrupt the microtubles in guard cells. Thus disrution of microtubules seems to be a specific effect of ABA in guard cells but its physiological significance remains obscure. ...
DOI:
10.1093/oxfordjournals.pcp.a029001

18. Effects of drought on nutrient and ABA transport in Ricinus communis

Author:
Schurr, U.; Schulze, E.D.
Source:
Plant, cell and environment 1996 v.19 no.6 pp. 665-674
ISSN:
0140-7791
Subject:
nutrient transport; chemical constituents of plants; Ricinus communis; vapor pressure; drought; water stress; diurnal variation; sap; translocation (plant physiology); abscisic acid; xylem; roots; leaf conductance
DOI:
10.1111/j.1365-3040.1996.tb00401.x

19. Evidence that abscisic acid does not regulate a centralized whole-plant response to low soil-resource availability

Author:
Coleman, J.S.; Schneider, K.M.
Source:
Oecologia 1996 v.106 no.3 pp. 277-283
ISSN:
0029-8549
Subject:
Solanum lycopersicum var. lycopersicum; mutants; abscisic acid; photosynthesis; stomata; leaf conductance; roots; shoots; dry matter partitioning; gas exchange; water stress; nutrient availability; biomass production
DOI:
10.1007/BF00334555

20. Expression and cellular localization of rab28 mRNA and Rab28 protein during maize embryogenesis

Author:
Niogret, M.F.; Culanez-Macia, F.A.; Goday, A.; Alba, M.M.; Pages, M.
Source:
plant journal 1996 v.9 no.4 pp. 549-557
ISSN:
0960-7412
Subject:
Zea mays; messenger RNA; molecular weight; immunohistochemistry; meristems; embryo (plant); amino acid sequences; gene expression; water stress; genes; cell nucleolus; abscisic acid; embryogenesis; light; plant proteins
Abstract:
... The maize abscisic acid (ABA) responsive gene rab28, has been shown to be ABA-inducible in embryos and vegetative tissues. A polyclonal antiserum was raised against Rab28 protein. Using immunoblotting and immunoprecipitation, the antiserum specifically recognized a protein of about 30 kDa and pI 6 which is in close agreement with the molecular weight and pI predicted by the deduced amino acid sequ ...
DOI:
10.1046/j.1365-313X.1996.09040549.x
PubMed:
8624517