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Encoding specificity in calcium signals in plants : hot spotting the ups and downs and waves.

Research output: Contribution to journalJournal article

Published

Journal publication date10/2003
JournalAnnals of Botany
Journal number4
Volume92
Number of pages9
Pages477-485
Original languageEnglish

Abstract

Calcium ions function as intracellular second messengers in regulating a plethora of cellular processes from acclimative stress responses to survival and programmed cell death. The generation of specificity in Ca2+ signals is dependent on influx and efflux from the extracellular milieu, cytosol and intracellular organelles. One aspect of plant Ca2+ signalling that is currently attracting a great deal of interest is how ‘Ca2+-signatures’, specific spatio-temporal changes in cytosolic-free Ca2+, encode the necessary information to bring about this range of physiological responses. Here, current information is reviewed on how Ca2+-signatures are generated in plant cells and how stimulus-specific information can be encoded in the form of Ca2+-signatures.