Preview
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.
Keywords: Abscisic acid; ethylene; root growth; shoot growth; water stress.
Journal Article. 3335 words. Illustrated.
Subjects: Plant Sciences and Forestry
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