Title : Hydrogen peroxide-mediated activation of MAP kinase 6 modulates nitric oxide biosynthesis and signal transduction in Arabidopsis.

Pub. Date : 2010 Sep

PMID : 20870959






10 Functional Relationships(s)
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1 Hydrogen peroxide-mediated activation of MAP kinase 6 modulates nitric oxide biosynthesis and signal transduction in Arabidopsis. Hydrogen Peroxide MAP kinase 6 Arabidopsis thaliana
2 In this study, we used biochemical and genetic approaches to analyze the function of Arabidopsis thaliana mitogen-activated protein kinase 6 (MPK6) in the regulation of NO synthesis in response to hydrogen peroxide (H2O2) during lateral root development. Hydrogen Peroxide MAP kinase 6 Arabidopsis thaliana
3 In this study, we used biochemical and genetic approaches to analyze the function of Arabidopsis thaliana mitogen-activated protein kinase 6 (MPK6) in the regulation of NO synthesis in response to hydrogen peroxide (H2O2) during lateral root development. Hydrogen Peroxide MAP kinase 6 Arabidopsis thaliana
4 In this study, we used biochemical and genetic approaches to analyze the function of Arabidopsis thaliana mitogen-activated protein kinase 6 (MPK6) in the regulation of NO synthesis in response to hydrogen peroxide (H2O2) during lateral root development. Hydrogen Peroxide MAP kinase 6 Arabidopsis thaliana
5 In this study, we used biochemical and genetic approaches to analyze the function of Arabidopsis thaliana mitogen-activated protein kinase 6 (MPK6) in the regulation of NO synthesis in response to hydrogen peroxide (H2O2) during lateral root development. Hydrogen Peroxide MAP kinase 6 Arabidopsis thaliana
6 In both mpk6 mutants studied, H2O2-induced NO synthesis and nitrate reductase (NR) activity were decreased dramatically. Hydrogen Peroxide MAP kinase 6 Arabidopsis thaliana
7 Furthermore, one NR isoform, NIA2, was required for the MPK6-mediated production of NO induced by H2O2. Hydrogen Peroxide MAP kinase 6 Arabidopsis thaliana
8 Phenotypical analysis revealed that mpk6-2 and mpk6-3 seedlings produce more and longer lateral roots than wild-type plants did after application of the NO donor sodium nitroprusside or H2O2. Hydrogen Peroxide MAP kinase 6 Arabidopsis thaliana
9 Phenotypical analysis revealed that mpk6-2 and mpk6-3 seedlings produce more and longer lateral roots than wild-type plants did after application of the NO donor sodium nitroprusside or H2O2. Hydrogen Peroxide MAP kinase 6 Arabidopsis thaliana
10 These data support strongly a function of MPK6 in modulating NO production and signal transduction in response to H2O2 during Arabidopsis root development. Hydrogen Peroxide MAP kinase 6 Arabidopsis thaliana