LOW TEMPERATURE-INDUCED CHANGES OF ABSCISIC-ACID CONTENTS IN BARLEY AND CUCUMBER LEAVES IN RELATION TO THEIR WATER STATUS

被引：5

作者：

CAPELL, B ^{[1
]}

DORFFLING, K ^{[1
]}

机构：

[1] UNIV HAMBURG,BOT GARTEN,W-2000 HAMBURG 13,GERMANY

来源：

JOURNAL OF PLANT PHYSIOLOGY | 1990年 / 135卷 / 05期

关键词：

ABA; abscisic acid; chilling; Cucumis sativus; electrolyte leakage; Hordeum vulgare; osmotic potential; r.h; relative humidity; t-ABA; trans-abscisic acid; water potential;

D O I：

10.1016/S0176-1617(11)80638-3

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Levels of abscisic acid (ABA) and its trans-isomer (t-ABA) were examined in comparison to changes in water status and development of injuries in primary leaves of barley (Hordeum vulgare) and in cotyledons of cucumber (Cucumis sativus) exposed to low temperature. In the chilling-tolerant barley no changes in water status and ABA content were observed during the low temperature treatment which lasted 96 h. In the cotyledons of the chilling-sensitive cucumber, however, 7–10 fold increases in ABA and t-ABA occurred which were related to temperature as well as to degree of humidity. The increase in ABA was preceded by low temperature-induced water stress. It is concluded that low temperature stress induces a rise in ABA through development of water stress. The possible protective function of the rise in ABA is discussed. © 1990, Gustav Fischer Verlag, Stuttgart. All rights reserved.

引用

页码：571 / 575

页数：5

共 21 条

[1]

Addicott F. T., 1983, ABSCISIC ACID

[2]

BORNMANN CH, 1980, PHYSL PLANT, V56, P207

[3] INTERACTIONS OF DROUGHT AND LOW-TEMPERATURE STRESS ON LIPID AND FATTY-ACID COMPOSITION OF CUCUMBER GENOTYPES DIFFERING IN GROWTH-RESPONSE AT SUBOPTIMAL TEMPERATURE [J].