The Maize Class-I SUMO Conjugating Enzyme ZmSCE1d Is Involved in Drought Stress Response.

ABSTRACT: Post-translational modification of cellular proteins by sumoylation plays a vital role in stress responses of plants. However, the mechanisms underlying the sumoylation's involvement in stress responses in crop species remain largely unknown. Herein, a maize class-I SUMO conjugating enzyme gene (ZmSCE1d) was identified, whose expression was upregulated upon drought stress. Over-expression of ZmSCE1d in transgenic Arabidopsis plants increased SUMO conjugates and improved drought tolerance. The ZmSCE1d-transgenic plants showed higher antioxidant enzyme activities, but lower reactive oxygen species and lipid peroxidation upon drought stress. Furthermore, transcripts of several drought-responsive genes were significantly elevated, as revealed by qPCR in the transgenic lines. Taken together, th

SUBMITTER: Wang H 

PROVIDER: S-EPMC6982253 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature