Research CommentariesPlant Biology

How Calcium Enhances Plant Salt Tolerance

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Science  19 Jun 1998:
Vol. 280, Issue 5371, pp. 1906-1907
DOI: 10.1126/science.280.5371.1906

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For their normal function, plants take up potassium salts and exclude sodium, a process that becomes more difficult in arid, salty soils. In his commentary, Epstein describes the physiological experiments that established that this selective accumulation depends on the presence of another salt, calcium, and how results in this issue by Liu et al. reveal the molecular basis of the calcium dependence.