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- Title
Long-distance signalling of abscisic acid (ABA): the factors regulating the intensity of the ABA signal.
- Authors
Fan Jiang; Hartung, Wolfram
- Abstract
Abscisic acid (ABA) is a stress signal, which moves in the xylem from the roots to the aerial parts of the plant, where it regulates stomatal movement and the activity of shoot meristems. Root growth-promoting microorganisms in the rhizosphere, lateral ABA flows in the root cortex across apoplastic barriers, ABA redistribution in the stem, leaf apoplastic pH values, and the action of β-glucosidases, both in the apoplast and the cytosol of the mesophyll, play an important role in the regulation of signal intensity. The significance of abscisic acid glucose ester as a long-distance stress signal is discussed.
- Publication
Journal of Experimental Botany, 2008, Vol 59, Issue 1, p37
- ISSN
0022-0957
- Publication type
Academic Journal
- DOI
10.1093/jxb/erm127