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Biochim Biophys Acta. 2012 Aug;1820(8):1283-93. doi: 10.1016/j.bbagen.2011.10.012. Epub 2011 Oct 26.

Analysis of calcium signaling pathways in plants.

Author information

1
Institut für Biologie und Biotechnologie der Pflanzen, Universität Münster, Münster, Germany.

Abstract

BACKGROUND:

Calcium serves as a versatile messenger in many adaptation and developmental processes in plants. Ca2+ signals are represented by stimulus-specific spatially and temporally defined Ca2+ signatures. These Ca2+ signatures are detected, decoded and transmitted to downstream responses by a complex toolkit of Ca2+ binding proteins that function as Ca2+ sensors.

SCOPE OF REVIEW:

This review will reflect on advancements in monitoring Ca2+ dynamics in plants. Moreover, it will provide insights in the extensive and complex toolkit of plant Ca2+ sensor proteins that relay the information presented in the Ca2+ signatures into phosphorylation events, changes in protein-protein interaction or regulation of gene expression.

MAJOR CONCLUSIONS:

Plants' response to signals is encoded by different Ca2+ signatures. The plant decoding Ca2+ toolkit encompasses different families of Ca2+ sensors like Calmodulins (CaM), Calmodulin-like proteins (CMLs), Ca2+-dependent protein kinases (CDPKs), Calcineurin B-like proteins (CBLs) and their interacting kinases (CIPKs). These Ca2+ sensors are encoded by complex gene families and form intricate signaling networks in plants that enable specific, robust and flexible information processing.

GENERAL SIGNIFICANCE:

This review provides new insights about the biochemical regulation, physiological functions and of newly identified target proteins of the major plant Ca2+ sensor families. This article is part of a Special Issue entitled Biochemical, biophysical and genetic approaches to intracellular calcium signaling.

PMID:
22061997
DOI:
10.1016/j.bbagen.2011.10.012
[Indexed for MEDLINE]

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