The generation of Ca2+ signals in plants

A M Hetherington, C Brownlee

Research output: Contribution to journalReview article (Academic Journal)peer-review

402 Citations (Scopus)


The calcium ion is firmly established as a ubiquitous intracellular second messenger in plants. At their simplest, Ca2+-based signaling systems are composed of a receptor, a system for generating the increase in [Ca2+](cyt), downstream components that are capable of reacting to the increase in [Ca2+](cyt), and other cellular systems responsible for returning [Ca2+](cyt) to its prestimulus level. Here we review the various mechanisms responsible for generating the stimulus-induced increases in [Ca2+](cyt) known as Ca2+ signals. We focus particularly on the mechanisms responsible for generating [Ca2+](cyt) oscillations and transients and use Nod Factor signaling in legume root hairs and stimulus-response coupling in guard cells to assess the physiological significance of these classes of Ca2+ signals.

Original languageEnglish
Pages (from-to)401-427
Number of pages29
JournalAnnual Review of Plant Biology
Publication statusPublished - 2004


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