Salt stress signals shape the plant root

Carlos S. Galvan-Ampudia, Christa Testerink*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

130 Citations (Scopus)

Abstract

Plants use different strategies to deal with high soil salinity. One strategy is activation of pathways that allow the plant to export or compartmentalise salt. Relying on their phenotypic plasticity, plants can also adjust their root system architecture (RSA) and the direction of root growth to avoid locally high salt concentrations. Here, we highlight RSA responses to salt and osmotic stress and the underlying mechanisms. A model is presented that describes how salinity affects auxin distribution in the root. Possible intracellular signalling pathways linking salinity to root development and direction of root growth are discussed. These involve perception of high cytosolic Na + concentrations in the root, activation of lipid signalling and protein kinase activity and modulation of endocytic pathways.

Original languageEnglish
Pages (from-to)296-302
Number of pages7
JournalCurrent Opinion in Plant Biology
Volume14
Issue number3
DOIs
Publication statusPublished - Jun 2011
Externally publishedYes

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