Chloride on the move
Files
(Submitted Version)
Date
2017
Authors
Li, B.
Tester, M.
Gilliham, M.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Journal article
Citation
Trends in Plant Science, 2017; 22(3):236-248
Statement of Responsibility
Bo Li, Mark Tester and Matthew Gilliham
Conference Name
Abstract
Chloride (Cl-) is an essential plant nutrient but under saline conditions it can accumulate to toxic levels in leaves; limiting this accumulation improves the salt tolerance of some crops. The rate-limiting step for this process - the transfer of Cl- from root symplast to xylem apoplast, which can antagonize delivery of the macronutrient nitrate (NO3-) to shoots - is regulated by abscisic acid (ABA) and is multigenic. Until recently the molecular mechanisms underpinning this salt-tolerance trait were poorly defined. We discuss here how recent advances highlight the role of newly identified transport proteins, some that directly transfer Cl- into the xylem, and others that act on endomembranes in 'gatekeeper' cell types in the root stele to control root-to-shoot delivery of Cl-.
School/Discipline
Dissertation Note
Provenance
Description
Access Status
Rights
© 2016 Elsevier Ltd. All rights reserved.