CDPK-mediated signalling pathways: specificity and cross-talk

J Exp Bot. 2004 Jan;55(395):181-8. doi: 10.1093/jxb/erh008. Epub 2003 Nov 17.


Plants are constantly exposed to environmental changes and have to integrate a variety of biotic and abiotic stress stimuli. Calcium-dependent protein kinases (CDPKs) are implicated as important sensors of Ca2+ flux in plants in response to these stresses. CDPKs are encoded by multigene families, and expression levels of these genes are spatially and temporally controlled throughout development. In addition, a subset of CDPK genes responds to external stimuli. Biochemical evidence supports the idea that CDPKs are involved in signal transduction during stress conditions. Furthermore, loss-of-function and gain-of-function studies revealed that signalling pathways leading to cold, salt, drought or pathogen resistance are mediated by specific CDPK isoforms

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Arabidopsis / enzymology
  • Arabidopsis / genetics*
  • Arabidopsis / physiology
  • Arabidopsis Proteins / physiology
  • Gene Silencing
  • Genome, Plant
  • Protein Kinases / physiology*
  • Signal Transduction / physiology*


  • Arabidopsis Proteins
  • Protein Kinases
  • calcium-dependent protein kinase