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

journal contribution
posted on 2023-05-22, 02:47 authored by McAdam, SAM, Manzi, M, John RossJohn Ross, Timothy BrodribbTimothy Brodribb, Gomez-Cadenas, A
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.

Funding

Australian Research Council

History

Publication title

Plant Signalling and Behavior

Volume

11

Issue

6

Article number

e1169359

Number

e1169359

Pagination

1-2

ISSN

1559-2324

Department/School

School of Natural Sciences

Publisher

Taylor & Francis Inc.

Place of publication

United States

Repository Status

  • Restricted

Socio-economic Objectives

Expanding knowledge in the biological sciences

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