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Trends Plant Sci. 2015 Sep;20(9):586-94. doi: 10.1016/j.tplants.2015.06.008. Epub 2015 Jul 20.

Tuning plant signaling and growth to survive salt.

Author information

1
Section of Plant Physiology, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, Science Park 904, 1098XH Amsterdam, The Netherlands.
2
Section of Plant Physiology, Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, Science Park 904, 1098XH Amsterdam, The Netherlands. Electronic address: C.S.Testerink@uva.nl.

Abstract

Salinity is one of the major abiotic factors threatening food security worldwide. Recently, our understanding of early processes underlying salinity tolerance has expanded. In this review, early signaling events, such as phospholipid signaling, calcium ion (Ca(2+)) responses, and reactive oxygen species (ROS) production, together with salt stress-induced abscisic acid (ABA) accumulation, are brought into the context of long-term salt stress-specific responses and alteration of plant growth. Salt-induced quiescent and recovery growth phases rely on modification of cell cycle activity, cell expansion, and cell wall extensibility. The period of initial growth arrest varies among different organs, leading to altered plant morphology. Studying stress-induced changes in growth dynamics can be used for screening to discover novel genes contributing to salt stress tolerance in model species and crops.

KEYWORDS:

Root System Architecture; cellular signaling; developmental plasticity; natural variation; osmotic stress; potassium starvation; root development; salt stress

PMID:
26205171
DOI:
10.1016/j.tplants.2015.06.008
[Indexed for MEDLINE]

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