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Calcium in plant defence‐signalling pathways
Author(s) -
Lecourieux David,
Ranjeva Raoul,
Pugin Alain
Publication year - 2006
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/j.1469-8137.2006.01777.x
Subject(s) - calcium , calcium signaling , signalling , microbiology and biotechnology , second messenger system , cytosol , signal transduction , biology , signalling pathways , chemistry , biochemistry , enzyme , organic chemistry
Summary In plant cells, the calcium ion is a ubiquitous intracellular second messenger involved in numerous signalling pathways. Variations in the cytosolic concentration of Ca 2+ ([Ca 2+ ] cyt ) couple a large array of signals and responses. Here we concentrate on calcium signalling in plant defence responses, particularly on the generation of the calcium signal and downstream calcium‐dependent events participating in the establishment of defence responses with special reference to calcium‐binding proteins.ContentsI. Introduction 250 II. Increases in free cellular [Ca 2+ ]: an early and key event in plant defence signalling 251 III. Relationships between [Ca 2+ ] cyt increases and defence‐signalling pathways 256 IV. Calcium targets involved in plant defence reactions 258 V. Concluding remarks 262Acknowledgements 263References 263