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Type: Journal article
Title: AVP1: one protein, many roles
Author: Schilling, R.
Tester, M.
Marschner, P.
Plett, D.
Roy, S.
Citation: Trends in Plant Science, 2017; 22(2):154-162
Publisher: Elsevier
Issue Date: 2017
ISSN: 1360-1385
Statement of
Rhiannon K. Schilling, Mark Tester, Petra Marschner, Darren C. Plett and Stuart J. Roy
Abstract: Constitutive expression of the Arabidopsis vacuolar proton-pumping pyrophos- phatase (H+-PPase) gene (AVP1) increases plant growth under various abiotic stress conditions and, importantly, under nonstressed conditions. Many inter- pretations have been proposed to explain these phenotypes, including greater vacuolar ion sequestration, increased auxin transport, enhanced heterotrophic growth, and increased transport of sucrose from source to sink tissues. In this review, we evaluate all the roles proposed for AVP1, using findings published to date from mutant plants lacking functional AVP1 and transgenic plants express- ing AVP1. It is clear that AVP1 is one protein with many roles, and that one or more of these roles act to enhance plant growth. The complexity suggests that a systems biology approach to evaluate biological networks is required to investigate these intertwined roles.
Keywords: H+-pyrophosphatase; vacuole; pyrophosphate; sucrose; plant growth
Rights: © 2016 Elsevier Ltd. All rights reserved.
RMID: 0030059647
DOI: 10.1016/j.tplants.2016.11.012
Appears in Collections:Agriculture, Food and Wine publications

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