Chloride on the Move

Bo Li; Mark A. Tester; Matthew Gilliham

doi:10.1016/j.tplants.2016.12.004

Chloride on the Move

Bo Li, Mark A. Tester, Matthew Gilliham

Research output: Contribution to journal › Article › peer-review

152 Scopus citations

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−.

Original language	English (US)
Pages (from-to)	236-248
Number of pages	13
Journal	Trends in Plant Science
Volume	22
Issue number	3
DOIs	https://doi.org/10.1016/j.tplants.2016.12.004
State	Published - Jan 9 2017

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: The authors thank the Australian Research Council (ARC) for funding M.G. through FT130100709 and CE140100008, and M.T. through DP1095542; the Grains Research and Development Corporation (Australia) for funding M.T. through UA00118 and M.G. through UA00145; and Wine Australia and the Waite Research Institute for funding M.G. Financial support to M.T. from the King Abdullah University of Science and Technology is also gratefully acknowledged.

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10.1016/j.tplants.2016.12.004

https://repository.kaust.edu.sa/bitstream/10754/622798/1/Cl%20review%20manuscript_final_update.pdf

Cite this

@article{eaa171410b2d46b2a8364ac38180ee61,

title = "Chloride on the Move",

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 {\textquoteleft}gatekeeper{\textquoteright} cell types in the root stele to control root-to-shoot delivery of Cl−.",

author = "Bo Li and Tester, {Mark A.} and Matthew Gilliham",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: The authors thank the Australian Research Council (ARC) for funding M.G. through FT130100709 and CE140100008, and M.T. through DP1095542; the Grains Research and Development Corporation (Australia) for funding M.T. through UA00118 and M.G. through UA00145; and Wine Australia and the Waite Research Institute for funding M.G. Financial support to M.T. from the King Abdullah University of Science and Technology is also gratefully acknowledged.",

year = "2017",

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doi = "10.1016/j.tplants.2016.12.004",

language = "English (US)",

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pages = "236--248",

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AU - Gilliham, Matthew

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: The authors thank the Australian Research Council (ARC) for funding M.G. through FT130100709 and CE140100008, and M.T. through DP1095542; the Grains Research and Development Corporation (Australia) for funding M.T. through UA00118 and M.G. through UA00145; and Wine Australia and the Waite Research Institute for funding M.G. Financial support to M.T. from the King Abdullah University of Science and Technology is also gratefully acknowledged.

PY - 2017/1/9

Y1 - 2017/1/9

N2 - 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−.

AB - 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−.

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JO - Trends in Plant Science

JF - Trends in Plant Science

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Chloride on the Move

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