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Map kinase phosphatase1 and protein tyrosine phosphatase1 are repressors of salicylic acid synthesis and snc1-mediated responses in Arabidopsis

Bartels, Sebastian ; Anderson, Jeffrey C. ; Besteiro González, Marina A. ; Carreri, Alessandro ; Hirt, Heribert ; Buchala, Antony J. ; Métraux, Jean-Pierre ; Peck, Scott C. ; Ulm, Roman

In: The Plant Cell, 2009, vol. 21, p. 2884-2897

Mitogen-activated protein (MAP) kinase phosphatases are important negative regulators of the levels and kinetics of MAP kinase activation that modulate cellular responses. The dual-specificity phosphatase MAP KINASE PHOSPHATASE1 (MKP1) was previously shown to regulate MAP KINASE6 (MPK6) activation levels and abiotic stress responses in Arabidopsis thaliana. Here, we report that the mkp1 null...