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Abstract

▪ Abstract 

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+], downstream components that are capable of reacting to the increase in [Ca2+], and other cellular systems responsible for returning [Ca2+] to its prestimulus level. Here we review the various mechanisms responsible for generating the stimulus-induced increases in [Ca2+] known as Ca2+ signals. We focus particularly on the mechanisms responsible for generating [Ca2+] 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.

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/content/journals/10.1146/annurev.arplant.55.031903.141624
2004-06-02
2024-04-19
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  • Article Type: Review Article
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