Expression of barley Glutathione S-Transferase13 gene reduces accumulation of reactive oxygen species by trichothecenes and paraquat in Arabidopsis plants.

ABSTRACT: Glutathione S-transferases (GSTs) play an important role in the detoxification of reactive oxygen species (ROS) and toxic compounds. We found that the barley phi class GST (HvGST13) gene is upregulated by trichothecene phytotoxin produced by the fungal pathogen Fusarium graminearum in barley. Trichothecene phytotoxins such as DON and T-2 toxin induce accumulation of ROS and cell death in plants. It is known that the death of host cells contributes to the virulence of F. graminearum during the later stages of infection. To characterize the role of the HvGST13 gene, we generated Arabidopsis plants in which HvGST13 was overexpressed. Growth inhibition by DON and T-2 toxin was significantly alleviated in the HvGST13ox Arabidopsis plants compared

SUBMITTER: Wahibah NN 

PROVIDER: S-EPMC6543728 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature