ABA, ethylene and the control of shoot and root growth under water stress.
نویسندگان
چکیده
The question of whether abscisic acid (ABA) acts as an inhibitor or promoter of shoot growth in plants growing in drying soil is examined, drawing on current understanding of the role of ABA in root growth maintenance. Particular consideration is given to studies of endogenous ABA deficiency, which have shown that an important role of ABA is to limit ethylene production, and that this interaction is involved in the effects of ABA status on shoot and root growth.
منابع مشابه
Interaction with ethylene: changing views on the role of abscisic acid in root and shoot growth responses to water stress.
Shoot and root growth are differentially sensitive to water stress. Interest in the involvement of hormones in regulating these responses has focused on abscisic acid (ABA) because it accumulates in shoot and root tissues under water-limited conditions, and because it usually inhibits growth when applied to well-watered plants. However, the effects of ABA can differ in stressed and non-stressed...
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ورودعنوان ژورنال:
- Journal of experimental botany
دوره 53 366 شماره
صفحات -
تاریخ انتشار 2002