2‐trans‐ABA alcohol accumulation in the wilty tomato mutants flacca and sitiens

Two wilty tomato mutants, flacca and sitiens, fail to increase their endogenous ABA concentration in response to water stress. Instead, a compound accumulates which has been identified as 2‐trans‐ABA alcohol. Levels of this compound have been estimated for three wilty mutants and the control; both b...

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Veröffentlicht in:	Plant, cell and environment cell and environment, 1987-09, Vol.10 (7), p.599-606
Hauptverfasser:	LINFORTH, R. S. T., BOWMAN, W. R., GRIFFIN, D. A., MARPLES, B. A., TAYLOR, I. B.
Format:	Artikel
Sprache:	eng
Schlagworte:	abscisic acid biosynthesis Agronomy. Soil science and plant productions Biological and medical sciences Classical and quantitative genetics. Population genetics. Molecular genetics Classical genetics, quantitative genetics, hybrids Fundamental and applied biological sciences. Psychology Generalities. Genetics. Plant material Genetics and breeding of economic plants Genetics of eukaryotes. Biological and molecular evolution Lycopersicon eseulenium Pteridophyta, spermatophyta Solanaceae tomato Vegetals wilty mutants
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Beschreibung
Zusammenfassung:	Two wilty tomato mutants, flacca and sitiens, fail to increase their endogenous ABA concentration in response to water stress. Instead, a compound accumulates which has been identified as 2‐trans‐ABA alcohol. Levels of this compound have been estimated for three wilty mutants and the control; both before and after water stress. When the compound was biosynthesized in the presence of 18O2, one atom appeared to be incorporated into the primary alcohol group. The possible implications of this for the ABA biosynthetic pathway are discussed.
ISSN:	0140-7791 1365-3040
DOI:	10.1111/1365-3040.ep11604117