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Regulation of Plant Immune Signaling by Calcium-Dependent Protein Kinases
- Bredow, Melissa, Monaghan, Jacqueline
- Molecular plant-microbe interactions 2019 v.32 no.1 pp. 6-19
- calcium, calcium signaling, microorganisms, pathogens, protein kinases, proteins, stress response
- Activation of Ca²⁺ signaling is a universal response to stress that allows cells to quickly respond to environmental cues. Fluctuations in cytosolic Ca²⁺ are decoded in plants by Ca²⁺-sensing proteins such as Ca²⁺-dependent protein kinases (CDPKs). The perception of microbes results in an influx of Ca²⁺ that activates numerous CDPKs responsible for propagating immune signals required for resistance against disease-causing pathogens. This review describes our current understanding of CDPK activation and regulation, and provides a comprehensive overview of CDPK-mediated immune signaling through interaction with various substrates.