期刊
TRENDS IN PLANT SCIENCE
卷 22, 期 2, 页码 154-162出版社
ELSEVIER SCIENCE LONDON
DOI: 10.1016/j.tplants.2016.11.012
关键词
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资金
- Grains Research and Development Corporation (GRDC) [GRS10044, UA00145, UA00159, ACP00009]
- International Wheat Yield Partnership (IWYP) [IWYP39]
- King Abdullah University of Science and Technology [KAUS7]
Constitutive expression of the Arabidopsis vacuolar proton-pumping pyrophosphatase (H+-PPase) gene (AVP1) increases plant growth under various abiotic stress conditions and, importantly, under nonstressed conditions. Many interpretations 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 expressing 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.
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