APUM5, encoding a Pumilio RNA binding protein, negatively regulates abiotic stress responsive gene expression.

ABSTRACT:

Background

A mutant screening was carried out previously to look for new genes related to the Cucumber mosaic virus infection response in Arabidopsis. A Pumilio RNA binding protein-coding gene, Arabidopsis Pumilio RNA binding protein 5 (APUM5), was obtained from this screening.

Results

APUM5 transcriptional profiling was carried out using a bioinformatics tool. We found that APUM5 was associated with both biotic and abiotic stress responses. However, bacterial and fungal pathogen infection susceptibility was not changed in APUM5 transgenic plants compared to that in wild type plants although APUM5 expression was induced upon pathogen infection. In contrast, APUM5 was involved in the abiotic stress response. 35S-APUM5 transgenic plants showed hypersensitive phenotypes under s

SUBMITTER: Huh SU 

PROVIDER: S-EPMC3986970 | biostudies-literature | 2014 Mar

REPOSITORIES: biostudies-literature