Journal Article

Annexins: multifunctional components of growth and adaptation

Jennifer C. Mortimer, Anuphon Laohavisit, Neil Macpherson, Alex Webb, Colin Brownlee, Nicholas H. Battey and Julia M. Davies

in Journal of Experimental Botany

Published on behalf of Society for Experimental Biology

Volume 59, issue 3, pages 533-544
Published in print February 2008 | ISSN: 0022-0957
Published online February 2008 | e-ISSN: 1460-2431 | DOI: http://dx.doi.org/10.1093/jxb/erm344
Annexins: multifunctional components of growth and adaptation

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Plant annexins are ubiquitous, soluble proteins capable of Ca2+-dependent and Ca2+-independent binding to endomembranes and the plasma membrane. Some members of this multigene family are capable of binding to F-actin, hydrolysing ATP and GTP, acting as peroxidases or cation channels. These multifunctional proteins are distributed throughout the plant and throughout the life cycle. Their expression and intracellular localization are under developmental and environmental control. The in vitro properties of annexins and their known, dynamic distribution patterns suggest that they could be central regulators or effectors of plant growth and stress signalling. Potentially, they could operate in signalling pathways involving cytosolic free calcium and reactive oxygen species.

Keywords: Annexin; calcium; channel; GTP; peroxide; stress

Journal Article.  7424 words.  Illustrated.

Subjects: Plant Sciences and Forestry

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