Decoding Ca2+ signals in plants.

P V Sathyanarayanan; B W Poovaiah

doi:10.1080/07352680490273310

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Decoding Ca2+ signals in plants.

P V Sathyanarayanan·B W Poovaiah

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Abstract

Different input signals create their own characteristic Ca2+ fingerprints. These fingerprints are distinguished by frequency, amplitude, duration, and number of Ca2+ oscillations. Ca(2+)-binding proteins and protein kinases decode these complex Ca2+ fingerprints through conformational coupling and covalent modifications of proteins. This decoding of signals can lead to a physiological response with or without changes in gene expression. In plants, Ca(2+)-dependent protein kinases and Ca2+/calmodulin-dependent protein kinases are involved in decoding Ca2+ signals into phosphorylation signals. This review summarizes the elements of conformational coupling and molecular mechanisms of regulation of the two groups of protein kinases by Ca2+ and Ca2+/calmodulin in plants.

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Calcium Calcium Signaling Calcium-Calmodulin-Dependent Protein Kinases EF Hand Motifs Gene Expression Regulation, Plant Ion Transport Plant Physiological Phenomena Signal Transduction NASA Discipline Plant Biology Non-NASA Center Journal Article Research Support, U.S. Gov't, Non-P.H.S.Review

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P V Sathyanarayanan, B W Poovaiah. 2004. Decoding Ca2+ signals in plants.. https://doi.org/10.1080/07352680490273310

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