Mulberry RGS negatively regulates salt stress response and tolerance.

ABSTRACT: Regulator of G-protein signaling (RGS) protein, the best-characterized accelerating GTPase protein in plants, regulates G-protein signaling and plays important role in abiotic stress tolerance. However, the detailed molecular mechanism of RGS involved in G-protein signaling mediated abiotic stress responses remains unclear. In this study, a mulberry (Morus alba L.) RGS gene (MaRGS) was transformed into tobacco, and the ectopic expression of MaRGS in tobacco decreased the tolerance to salt stress. The transgenic tobacco plants had lower proline content, higher malonaldehyde and H₂O₂ contents than wild type plants under salt stress condition. Meanwhile, MaRGS overexpression in mulberry seedlings enhances the sensitivity to salt stress

SUBMITTER: Liu C 

PROVIDER: S-EPMC6866688 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature