Combining Genetics and Cell Biology to Crack the Code of Plant Cell Calcium Signaling

Sci. STKE, 2 October 2001
Vol. 2001, Issue 102, p. re13
DOI: 10.1126/stke.2001.102.re13

Combining Genetics and Cell Biology to Crack the Code of Plant Cell Calcium Signaling

  1. Gethyn J. Allen and
  2. Julian I. Schroeder
  1. The Division of Biology, Cell and Developmental Biology Section, University of California, San Diego, La Jolla, CA 92093-0116, USA. E-mail: gallen{at}biomail.ucsd.edu
  1. Contact author: email: gallen{at}biomail.ucsd.edu

Abstract

Plant hormones, light receptors, pathogens, and abiotic signals trigger elevations in the cytosolic calcium concentration, which mediate physiological and developmental responses. Recent studies are reviewed here that reveal how specific genetic mutations impair or modify stimulus-induced calcium elevations in plant cells. These studies provide genetic evidence for the importance of calcium as a second messenger in plant signal transduction. A fundamental question arises: How can different stimuli use the same second messenger, calcium, to mediate different responses? Recent research and models are reviewed that suggest that several important mechanisms contribute to specificity in calcium signaling in plant cells. These mechanisms include (i) activation of different calcium channels in the plasma membrane and organellar membranes, (ii) stimulus-specific calcium oscillation parameters, (iii) cell type-specific responses, and (iv) intracellular localization of calcium gradients and calcium elevations in plant cells.

Citation:

G. J. Allen and J. I. Schroeder, Combining Genetics and Cell Biology to Crack the Code of Plant Cell Calcium Signaling. Sci. STKE 2001, re13 (2001).

In SYNC: The Ins and Outs of Circadian Oscillations in Calcium
T. Imaizumi, J. I. Schroeder, and S. A. Kay
Sci Signal 2007, pe32-pe32 (12 June 2007)

Science Signaling. ISSN 1937-9145 (online), 1945-0877 (print). Pre-2008: Science's STKE. ISSN 1525-8882