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Article addendum. Uprooting an abscisic acid paradigm: shoots are the primary source


McAdam, SAM and Manzi, M and Ross, JJ and Brodribb, TJ and Gomez-Cadenas, A, Article addendum. Uprooting an abscisic acid paradigm: shoots are the primary source, Plant Signalling and Behavior, 11, (6) Article e1169359. ISSN 1559-2324 (2016) [Contribution to Refereed Journal]

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DOI: doi:10.1080/15592324.2016.1169359


In the past, a conventional wisdom has been that abscisic acid (ABA) is a xylem-transported hormone that is synthesised in the roots, while acting in the shoot to close stomata in response to a decrease in plant water status. Now, however, evidence from two studies that we have conducted independently, challenges this root-sourced ABA paradigm. We show that foliage-derived ABA has a major influence over root development and that leaves are the predominant location for ABA biosynthesis during drought stress.

Item Details

Item Type:Contribution to Refereed Journal
Keywords:abscisic acid (ABA), shoot to root signalling, water stress, stomata, root growth
Research Division:Biological Sciences
Research Group:Plant biology
Research Field:Plant physiology
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the biological sciences
UTAS Author:McAdam, SAM (Dr Scott McAdam)
UTAS Author:Ross, JJ (Associate Professor John Ross)
UTAS Author:Brodribb, TJ (Professor Tim Brodribb)
ID Code:109122
Year Published:2016
Funding Support:Australian Research Council (DE140100946)
Web of Science® Times Cited:42
Deposited By:Plant Science
Deposited On:2016-05-25
Last Modified:2022-06-29

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