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Journal ArticleDOI

Metabolism and physiology of abscisic acid

Jan A. D. Zeevaart, +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 463

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Citations
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Patent

Lycopene cyclase gene

TL;DR: In this article, a new lycopene cyclase gene was proposed to provide a new Lycopene Cyclase gene encoding a new cyclase resistant to herbicide, expressing a biosynthesis path from geranylgeranyl pyrophosphate to β-carotene in a host cell and improving the nutrient value of organism.
Journal ArticleDOI

Influence of chilling and drought on water relations and abscisic acid accumulation in bean

TL;DR: Experiments performed with leaf discs incubated in a mannitol solution at different temperatures indicated that low temperature markedly inhibits ABA synthesis and that water stress induces increases in ABA content only at non-limiting warm temperatures.
Book ChapterDOI

ABA as a Universal Plant Hormone

TL;DR: It is hypothesized that acquisition of sensing and response mechanisms for ABA by land plant ancestors was critical for invasion of and adaptation to land and further clarification of their ABA-dependent processes is important for understanding land plant evolutionary adaptation.
Journal ArticleDOI

Chemical inhibition of potato ABA-8'-hydroxylase activity alters in vitro and in vivo ABA metabolism and endogenous ABA levels but does not affect potato microtuber dormancy duration

TL;DR: The results indicate that the decline in ABA levels is not a prerequisite for dormancy exit and the onset of tuber sprouting, and that continuous exposure to 8'-acetylene-ABA significantly increased the rate of microtuber sprouting.
References
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Journal ArticleDOI

Induction of dormancy during seed development by endogenous abscisic acid: studies on abscisic acid deficient genotypes of Arabidopsis thaliana (L.) Heynh.

TL;DR: Mutant lines of Arabidopsis thaliana (L.) Heynh, which are characterized by symptoms of withering and the absence of seed dormancy, showed much lower levels of endogenous abscisic acid (ABA) in developing seeds and fruits than the wild type, and it seems that limited access to water is the primary trigger for the developmental arrest in these seeds.
Journal ArticleDOI

Biochemistry and physiology of abscisic acid.

TL;DR: This chapter discusses the localization and regulation of ABA, the mode of action of A.lJA, and the role of stomatal complexes and A.spoTf in this synthesis.
Journal ArticleDOI

Role of ABA in Maturation of Rapeseed Embryos

TL;DR: Results are consistent with the hypothesis that in maturing rapeseeds, low water content rather than ABA prevents germination during the later stages of development.
Journal ArticleDOI

High-affinity binding sites for abscisic acid on the plasmalemma of Vicia faba guard cells

TL;DR: In this article, high affinity guard cell-specific ABA-binding proteins were found in the plasmalemma of the stomata of leaves with high density, and all characteristics examined, they bear the properties of ABA receptors.
Journal ArticleDOI

Rapeseed embryo development in culture on high osmoticum is similar to that in seeds.

TL;DR: Measurements of endogenous abscisic acid (ABA) levels by radioimmunoassay indicated that the osmotic effects on germination and gene expression were not mediated by elevated embryonic ABA, consistent with the hypothesis that ABA acts by inhibiting water uptake, which mechanically prevents germinating and affects gene expression in some unknown manner.
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