Full text not available from this repository.

Abstract

Active removal of Na+ from the cytosol into the vacuole plays a critical role in salinity tissue tolerance, but another, often neglected component of this trait is Na+ retention in vacuoles. This retention is based on an efficient control of Na+‐permeable slow‐ and fast‐vacuolar channels that mediate the back‐leak of Na+ into cytosol and, if not regulated tightly, could result in a futile cycle. This Tansley insight summarizes our current knowledge of regulation of tonoplast Na+‐permeable channels and discusses the energy cost of vacuolar Na+ sequestration, under different scenarios. We also report on a phylogenetic and bioinformatic analysis of the plant two‐pore channel family and the difference in its structure and regulation between halophytes and glycophytes, in the context of salinity tolerance.

Item Type:	Article
Authors/Creators:	Shabala, S and Chen, G and Chen, ZH and Pottosin, I
Keywords:	H+-ATPase, halophyte, salinity stress, tonoplast ion channels, two-pore channel 1 (TPC1), vacuolar sodium sequestration, tonoplast, SV, VF
Journal or Publication Title:	New Phytologist
Publisher:	Blackwell Publishing Ltd
ISSN:	0028-646X
DOI / ID Number:	10.1111/nph.15758
Copyright Information:	Copyright 2019 the authors
Related URLs:	Google Scholar: Shabala, S UTAS Profile: Shabala, S
Item Statistics:	View statistics for this item

Actions (login required)

Item Control Page