Calcium signaling in plants |
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Authors: | J J Rudd V E Franklin-Tong |
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Institution: | (1) Wolfson Laboratory for Plant Molecular Biology, School of Biological Sciences, University of Birmingham, Edgbaston, Birmingham , B15 2TT (UK), Fax +44 121 414 5925, e-mail: V.E.Franklin-Tong@bham.ac.uk, GB |
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Abstract: | Changes in the cytosolic concentration of calcium ions (Ca2+]i) play a key second messenger role in signal transduction. These changes are visualized by making use of either Ca2+-sensitive fluorescent dyes or the Ca2+-sensitive photoprotein, aequorin. Here we describe the advances made over the last 10 years or so, which have conclusively
demonstrated a second messenger role for Ca2+]i in a few model plant systems. Characteristic changes in Ca2+]i have been seen to precede the responses of plant cells and whole plants to physiological stimuli. This has had a major impact
on our understanding of cell signaling in plants. The next challenge will be to establish how the Ca2+ signals are encrypted and decoded in order to provide specificity, and we discuss the current understanding of how this may
be achieved. |
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Keywords: | , Cytosolic calcium, signaling, Ca2+ imaging, angiosperms, |
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