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Int. J. Mol. Sci. 2013, 14(4), 7370-7390; doi:10.3390/ijms14047370
Review

The Critical Role of Potassium in Plant Stress Response

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Received: 12 December 2012; in revised form: 23 February 2013 / Accepted: 21 March 2013 / Published: 2 April 2013
(This article belongs to the Special Issue Abiotic and Biotic Stress Tolerance Mechanisms in Plants)
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Abstract: Agricultural production continues to be constrained by a number of biotic and abiotic factors that can reduce crop yield quantity and quality. Potassium (K) is an essential nutrient that affects most of the biochemical and physiological processes that influence plant growth and metabolism. It also contributes to the survival of plants exposed to various biotic and abiotic stresses. The following review focuses on the emerging role of K in defending against a number of biotic and abiotic stresses, including diseases, pests, drought, salinity, cold and frost and waterlogging. The availability of K and its effects on plant growth, anatomy, morphology and plant metabolism are discussed. The physiological and molecular mechanisms of K function in plant stress resistance are reviewed. This article also evaluates the potential for improving plant stress resistance by modifying K fertilizer inputs and highlights the future needs for research about the role of K in agriculture.
Keywords: biotic stress; abiotic stress; potassium; physiological and molecular mechanisms; plant resistance biotic stress; abiotic stress; potassium; physiological and molecular mechanisms; plant resistance
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Wang, M.; Zheng, Q.; Shen, Q.; Guo, S. The Critical Role of Potassium in Plant Stress Response. Int. J. Mol. Sci. 2013, 14, 7370-7390.

AMA Style

Wang M, Zheng Q, Shen Q, Guo S. The Critical Role of Potassium in Plant Stress Response. International Journal of Molecular Sciences. 2013; 14(4):7370-7390.

Chicago/Turabian Style

Wang, Min; Zheng, Qingsong; Shen, Qirong; Guo, Shiwei. 2013. "The Critical Role of Potassium in Plant Stress Response." Int. J. Mol. Sci. 14, no. 4: 7370-7390.


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