DRB1, DRB2 and DRB4 Are Required for an Appropriate miRNA-Mediated Molecular Response to Osmotic Stress in <i>Arabidopsis thaliana</i>.

ABSTRACT: Arabidopsis thaliana (Arabidopsis) double-stranded RNA binding (DRB) proteins DRB1, DRB2 and DRB4 perform essential roles in microRNA (miRNA) production, with many of the produced miRNAs mediating aspects of the molecular response of Arabidopsis to abiotic stress. Exposure of the drb1, drb2 and drb4 mutants to mannitol stress showed drb2 to be the most sensitive to this form of osmotic stress. Profiling of the miRNA landscapes of mannitol-stressed drb1, drb2 and drb4 seedlings via small RNA sequencing, and comparison of these to the profile of mannitol-stressed wild-type Arabidopsis plants, revealed that the ability of the drb1 and drb2 mutants to mount an appropriate miRNA-mediated molecular respons

SUBMITTER: Pegler JL 

PROVIDER: S-EPMC11641234 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature