Journal ArticleDOI
Metabolism and physiology of abscisic acid
Jan A. D. Zeevaart,R. A. Creelman +1 more
- Vol. 39, Iss: 1, pp 439-473
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TLDR
This paper presents a meta-analysis of biosynthesis in Fungi, focusing on the role of xanthoxin in the biosynthetic pathway and its role in the regulation in plants.Abstract:
INTRODUCTION 440 TECHNIQUES 440 Quantification of ABA . ...... . . ...... . 440 Separation of Sand R-Abscisic Acid 441 Stable Isotopes and Mass Spectrometry 442 Extraction and Quantification of Xanthoxin 442 METABOLISM 443 Biosynthesis in Fungi 443 Biosynthesis in Higher Plants 444 Catabolism . . . . . . . . . .. . .... . . . . . . . . . . . . . . .. . . ..... . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... ..... . . . . . . . 453 Compartmentation 454 EFFECTS OF ABSCISIC ACID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 456 Physiological Responses 456 Biochemical Responses..... . ...... . 461 CONCLUDING REMARKS 463read more
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TL;DR: Identification of ABA metabolic genes has revealed that multiple metabolic steps are differentially regulated to fine-tune the ABA level at both transcriptional and post-transcriptional levels.
Journal ArticleDOI
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Journal ArticleDOI
Guard Cell Signal Transduction Network: Advances in Understanding Abscisic Acid, CO2, and Ca2+ Signaling
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References
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Journal ArticleDOI
Abscisic Acid and Photosynthesis in Isolated Leaf Mesophyll Cell
TL;DR: Th Thin slices of leaves preincubated in hypertonic solutions identical to those used to isolate cells were shown to synthesize AbA rapidly, although accumulation of AbA in the cells was low due to extensive release of the newly synthesized AbA into the medium.
Journal ArticleDOI
Phenotypic interactions between abscisic acid deficient tomato mutants.
Ian Taylor,A. R. Tarr +1 more
TL;DR: The severity of phenotype in the double mutants does not correspond to that predicted from the single mutant homozygotes, and the results are discussed in relation to the probable involvement of the mutants in abscisic acid metabolism.
Journal ArticleDOI
Abscisic acid synthesis and metabolism in barley leaves and protoplasts
Brian Loveys,Simon P. Robinson +1 more
TL;DR: Protoplasts isolated from barley mesophyll protoplasts were not able to metabolise ABA, PA or any of the other metabolites formed from ABA by intact leaf tissue by intact Leaf tissue.
Journal ArticleDOI
Abscisic acid and cessation of apical growth in Salix pentandra
TL;DR: Effects of exogenous abscisic acid (ABA) on growth and transpiration in seedlings of two ecotypes of Salix pentandra L. were studied in phytotron experiments and no significant differences were found in the ABA contents of LD- and SD-grown plants.
Journal ArticleDOI
Abscisic acid, xanthoxin and violaxanthin in the caps of gravistimulated maize roots.
TL;DR: The occurrence and distribution of abscisic acid, xanthoxin and the carotenoid violaxanthin were investigated in root tips of maize and support the proposal that Xa may arise from the turnover of Va, supporting a role for ABA in root gravitropism.