A genetic framework for H2O2 induced cell death in Arabidopsis thaliana.

ABSTRACT:

Background

To survive in a changing environment plants constantly monitor their surroundings. In response to several stresses and during photorespiration plants use reactive oxygen species as signaling molecules. The Arabidopsis thaliana catalase2 (cat2) mutant lacks a peroxisomal catalase and under photorespiratory conditions accumulates H2O2, which leads to activation of cell death.

Methods

A cat2 double mutant collection was generated through crossing and scored for cell death in different assays. Selected double mutants were further analyzed for photosynthetic performance and H2O2 accumulation.

Results

We used a targeted mutant analysis with more than 50 cat2 double mutants to investigate the role of stress hormones and other defense regulators in H2O2-mediated ce

SUBMITTER: Kaurilind E 

PROVIDER: S-EPMC4619244 | biostudies-literature | 2015 Oct

REPOSITORIES: biostudies-literature