articleThe Plant CellMar 1, 2003BRONZE OA

Disease Resistance and Abiotic Stress Tolerance in Rice Are Inversely Modulated by an Abscisic Acid–Inducible Mitogen-Activated Protein Kinase[W]

LXLizhong XiongYYYinong Yang

University of Arkansas at Fayetteville

PubMed
Indexed incrossrefpubmed

Abstract

Mitogen-activated protein kinase (MAPK) cascades play an important role in mediating stress responses in eukaryotic organisms. However, little is known about the role of MAPKs in modulating the interaction of defense pathways activated by biotic and abiotic factors. In this study, we have isolated and functionally characterized a stress-responsive MAPK gene (OsMAPK5) from rice. OsMAPK5 is a single-copy gene but can generate at least two differentially spliced transcripts. The OsMAPK5 gene, its protein, and kinase activity were inducible by abscisic acid as well as various biotic (pathogen infection) and abiotic (wounding, drought, salt, and cold) stresses. To determine its biological function, we generated and…

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Topics & keywords

Topics
Keywords
  • Biology
  • Abscisic acid
  • Kinase
  • Abiotic stress
  • Protein kinase A
  • Cell biology
  • Plant disease resistance
  • RNA interference
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