Overexpression of Banana ATG8f Modulates Drought Stress Resistance in Arabidopsis.

ABSTRACT: Autophagy is essential for plant growth, development, and stress resistance. However, the involvement of banana autophagy-related genes in drought stress response and the underlying mechanism remain elusive. In this study, we found that the transcripts of 10 banana ATG8s responded to drought stress in different ways, and MaATG8f with the highest transcript in response to drought stress among them was chosen for functional analysis. Overexpression of MaATG8f improved drought stress resistance in  Arabidopsis,with lower malonaldehyde level and higher level of assimilation rate. On the one hand, overexpression of MaATG8f activated the activities of superoxide dismutase, catalase, and peroxidase under drought stress conditions, so as to regulate reactive oxygen species accumulation. On th

SUBMITTER: Li B 

PROVIDER: S-EPMC6995610 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature