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Trends Plant Sci. 2001 Sep;6(9):392-4.

Mapping out the roles of MAP kinases in plant defense.

Abstract

Arabidopsis contains 20 MAP kinase genes, but their roles in plant physiology have remained largely unknown because of a lack of mutants. Recent papers from two groups have shed new light on the function of two different MAP kinases. The Arabidopsis MPK4 gene appears to negatively regulate salicylic acid-mediated defense responses and positively regulate jasmonic acid-induced responses. The tobacco SIPK gene (orthologous to Arabidopsis MPK6) appears to positively regulate programmed cell death.

PMID:
11544109
DOI:
10.1016/s1360-1385(01)02058-1
[Indexed for MEDLINE]

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