Journal
NEW PHYTOLOGIST
Volume 189, Issue 1, Pages 40-53Publisher
WILEY
DOI: 10.1111/j.1469-8137.2010.03533.x
Keywords
annexin; calcium; death; pathogen; reactive oxygen; stress
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Funding
- University of Cambridge, UK
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Annexins are multifunctional lipid-binding proteins. Plant annexins are expressed throughout the life cycle and are under environmental control. Their association or insertion into membranes may be governed by a range of local conditions (Ca2+, pH, voltage or lipid identity) and nonclassical sorting motifs. Protein functions include exocytosis, actin binding, peroxidase activity, callose synthase regulation and ion transport. As such, annexins appear capable of linking Ca2+, redox and lipid signalling to coordinate development with responses to the biotic and abiotic environment. Significant advances in plant annexin research have been made in the past 2 yr. Here, we review the basis of annexin multifunctionality and suggest how these proteins may operate in the life and death of a plant cell.
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