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Hot-spotting the ups and downs and calcium waves
The apparent ubiquity of Ca2+ as a signalling molecule in plants makes it important to understand how specificity is encoded in changes in cytosolic-free Ca2+. Ng and McAinsh (pp. 477-485) discuss how spatio-temporal changes in cytosolic-free calcium can encode stimulus-specific signalling information and the mechanisms by which Ca2+ signatures can be generated.
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