Spermidine Revives Aged Sorghum Seed Germination by Boosting Antioxidant Defense.

ABSTRACT: Seed aging has adverse effects on agricultural production, mainly because seed vigor is inhibited. Spermidine can improve seed vitality and germination ability to a certain extent and is essential for plant growth and plant response to stress. This study explored how spermidine counteracted aging effects on sorghum seed germination through antioxidant metabolism regulation. Aged seeds showed decreased vigor due to heightened reactive oxygen species (ROS) and diminished antioxidants. Applying spermidine notably enhanced aged seeds' germination and vigor by boosting antioxidant enzyme activity and curbing ROS. Integrated transcriptomic, proteomic, and metabolomic analyses demonstrated that the majority of differentially expressed genes following exogenous spermidine treatment in aged sorghum

SUBMITTER: Xing Y 

PROVIDER: S-EPMC11939325 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature