- freely available
Annexin-Mediated Calcium Signalling in Plants
AbstractCalcium-permeable channels underpin elevations of free calcium that encode specific signals in stress adaptation, development and immunity. Identifying the genes encoding these channels remains a central goal of plant signalling research. Evidence now suggests that members of the plant annexin family function as unconventional calcium-permeable channels, with roles in development and stress signalling. Arabidopsis annexin 1 mediates a plasma membrane calcium-permeable conductance in roots that is activated by reactive oxygen species. Recombinant annexin 1 forms a very similar conductance in planar lipid bilayers, indicating that this protein could facilitate the in vivo conductance directly. The annexin 1 mutant is impaired in salinity-induced calcium signalling. Protein–protein interactions, post-translational modification and dynamic association with membranes could all influence annexin-mediated calcium signalling and are reviewed here. The prospect of annexins playing roles in calcium signalling events in symbiosis and immunity are considered.
Share & Cite This Article
Davies, J.M. Annexin-Mediated Calcium Signalling in Plants. Plants 2014, 3, 128-140.View more citation formats
Davies JM. Annexin-Mediated Calcium Signalling in Plants. Plants. 2014; 3(1):128-140.Chicago/Turabian Style
Davies, Julia M. 2014. "Annexin-Mediated Calcium Signalling in Plants." Plants 3, no. 1: 128-140.