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PMID: 12646496 Published · ppublish English Journal Article Research Support, Non-U.S. Gov't Review

Na+ tolerance and Na+ transport in higher plants.

Annals of botany ·Vol. 91 ·No. 5 ·2003-04-00 ·Pages 503-27

Tester M, Davenport R

Abstract

Tolerance to high soil [Na(+)] involves processes in many different parts of the plant, and is manifested in a wide range of specializations at disparate levels of organization, such as gross morphology, membrane transport, biochemistry and gene transcription. Multiple adaptations to high [Na(+)] operate concurrently within a particular plant, and mechanisms of tolerance show large taxonomic variation. These mechanisms can occur in all cells within the plant, or can occur in specific cell types, reflecting adaptations at two major levels of organization: those that confer tolerance to individual cells, and those that contribute to tolerance not of cells per se, but of the whole plant. Salt-tolerant cells can contribute to salt tolerance of plants; but we suggest that equally important in a wide range of conditions are processes involving the management of Na(+) movements within the plant. These require specific cell types in specific locations within the plant catalysing transport in a coordinated manner. For further understanding of whole plant tolerance, we require more knowledge of cell-specific transport processes and the consequences of manipulation of transporters and signalling elements in specific cell types.

MeSH Terms
Adaptation, Physiological/drug effects Biological Transport Plant Cells Plants/drug effects,genetics,metabolism Sodium/metabolism,pharmacology
Chemicals
Sodium
Authors & Affiliations
2 authors, click to expand affiliations / ORCID
Tester Mark
Department of Plant Sciences, University of Cambridge, Downing St, Cambridge CB2 3EA, UK. mat10@cam.ac.uk
Davenport Romola
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Article Info
Journal
Annals of botany
Abbr.
Ann Bot
ISSN
0305-7364
Published
2003-04-00
Pages
503-27
Language
English
Region
England
NLM ID
0372347
PMCID
PMC4242248
Subset
IM
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