Ascorbic acid priming restores the seed vigor by enhancing the mitochondrial AsA-GSH cycle and related gene expression in the aged oat seeds.

ABSTRACT: Seed priming is an effective way to activate defense mechanisms before germination, enhancing seed vigor and stress resistance. Ascorbic acid (AsA) is an important signaling molecule that plays a crucial role in balancing cellular reactive oxygen species. However, whether AsA priming can enhance seed vigor in oat (Avena sativa) and the underlying mechanisms remain unclear. This study primed aged seeds (controlled deterioration at 45°C for 5 days) with 1.5 mM AsA for 24 h. Primed seeds were then sampled after 36 h of imbibition for seed assays. Significant increases in germination percentage, vigor index, shoot and root length, coupled with a significant reduction in mean germination time, demonstrated that AsA priming effectively restored seed vigor. Ultrastructural observations of mitocho

SUBMITTER: Mi C 

PROVIDER: S-EPMC11963226 | biostudies-literature | 2025 Mar-Apr

REPOSITORIES: biostudies-literature