Autophagy deficiency confers freezing tolerance in Arabidopsis thaliana.

ABSTRACT:

Background

Plants have evolved multiple strategies to cope with the ever-changing external environment. Autophagy, as one of the crucial mechanisms involved, has been demonstrated to play a pivotal role in plant responses and adaptation to abiotic stresses. However, the precise molecular mechanisms underlying the role of autophagy in mediating cold stress remain to be fully elucidated.

Results

In this study, we demonstrated that autophagy mutants presented increased freezing tolerance under both non-acclimated and cold-acclimated conditions in Arabidopsis. Autophagy positively regulates the expression of anthocyanin biosynthesis-related genes, thereby influencing anthocyanin accumulation in Arabidopsis under low-temperature conditions. Moreover, we found that cold stress dir

SUBMITTER: Peng Y 

PROVIDER: S-EPMC12312434 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature