OSCA1 mediates osmotic-stress-evoked Ca2+ increases vital for osmosensing in Arabidopsis

Fang Yuan (), Huimin Yang, Yan Xue, Dongdong Kong, Rui Ye, Chijun Li, Jingyuan Zhang, Lynn Theprungsirikul, Tayler Shrift, Bryan Krichilsky, Douglas M. Johnson, Gary B. Swift, Yikun He, James N. Siedow and Zhen-Ming Pei ()
Additional contact information
Fang Yuan: Duke University
Huimin Yang: Duke University
Yan Xue: Duke University
Dongdong Kong: Duke University
Rui Ye: Duke University
Chijun Li: Duke University
Jingyuan Zhang: Duke University
Lynn Theprungsirikul: Duke University
Tayler Shrift: Duke University
Bryan Krichilsky: Duke University
Douglas M. Johnson: Duke University
Gary B. Swift: Duke University
Yikun He: Duke University
James N. Siedow: Duke University
Zhen-Ming Pei: Duke University

Nature, 2014, vol. 514, issue 7522, 367-371

Abstract: Osmotic stress is known to induce a transient increase in cytoplasmic Ca2+ concentration [Ca2+]i in plants, and now OSCA1 is identified as a long-sought Ca2+ channel that mediates [Ca2+]i increases—mutants lacking OSCA1 function have impaired osmotic Ca2+ signalling in guard cells and root cells, and reduced transpiration regulation and root growth under osmotic stress.

Date: 2014
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DOI: 10.1038/nature13593

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