PETIOLE PITHINESS IN CELERY LEAVES - INDUCTION BY ENVIRONMENTAL STRESSES AND THE INVOLVEMENT OF ABSCISIC-ACID

被引：12

作者：

ALONI, B

PRESSMAN, E

机构：

[1] Agricultural Research Organization, The Volcani Center, Institute of Field and Garden Crops, Division of Vegetable Crops, Bet Dagan

来源：

PHYSIOLOGIA PLANTARUM | 1979年 / 47卷 / 01期

关键词：

D O I：

10.1111/j.1399-3054.1979.tb06513.x

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Petiole pithiness in celery, Apium graveolens L., was found to be stimulated by several types of root stress. Flooding of the root zone as well as nutrition deficiency required a prolonged period (25–30 days), but water deprivation had a rapid (2–3 days) effect on pithiness development. Pithiness development induced by water deprivation is not reversible upon rehydration of whole plants but is reversible upon rehydration of affected petiole slices. The stimulation of water stress‐related pithiness was found to be associated with an increased level of endogenous free abscisic acid (ABA). Exogenously applied ABA stimulated petiole pithiness of detached leaves in a concentration‐dependent fashion. It is suggested that in celery, ABA is an agent which mediates stimulation of petiole pithiness by water stress. Copyright © 1979, Wiley Blackwell. All rights reserved

引用

页码：61 / 65

页数：5

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