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Acta Prataculturae Sinica ›› 2024, Vol. 33 ›› Issue (1): 182-197.DOI: 10.11686/cyxb2023090

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The role of MAPK in plant response to abiotic stress

Xin-miao ZHANG(), Guo-qiang WU(), Ming WEI   

  1. School of Life Science and Engineering,Lanzhou University of Technology,Lanzhou 730050,China
  • Received:2023-03-22 Revised:2023-04-24 Online:2024-01-20 Published:2023-11-23
  • Contact: Guo-qiang WU

Abstract:

Mitogen-activated protein kinase (MAPK) is a highly conserved serine/threonine (Ser/Thr) protein kinase, occurring widely in eukaryotic intermediate reaction pathways. Plant MAPK has 11 relatively conserved sub-domains, which are all essential elements for Ser/Thr protein kinase to play its catalytic role, and its expression is regulated by reactive oxygen species, nitric oxide and hormones. MAPK phosphorylates a variety of substrates including transcription factors, protein kinases and cytoskeleton related proteins, and plays an important role in regulating plant response to abiotic stresses (salt, drought, extreme temperature, and heavy metals). In this review, we summarize the results of research on the discovery of plant MAPK family members, their structure and classification, regulatory mechanisms, and their roles in response to various abiotic stresses. We also propose directions for future research. The information in this review provides a theoretical basis and identifies genetic resources for the genetic improvement of crops to produce new, stress-resistant varieties.

Key words: mitogen-activated protein kinase, regulatory mechanism, abiotic stress, MAPK cascade pathway, phosphorylation