Comparison of radiosensitivity response to acute and chronic gamma irradiation in colored wheat.

ABSTRACT: We aimed to investigate the biological responses induced by acute and chronic gamma irradiation in colored wheat seeds rich in natural antioxidants. After acute and chronic irradiation, the phenotypic effects on plant growth, germination rate, seedling height, and root length were examined, and the biochemical changes were investigated by analyzing the expression of antioxidant enzyme-related genes, antioxidant enzyme activities, and total antioxidant capacity. High dosages of chronic radiation reduced plant growth compared with the controls. Electron spin resonance measurement and 2,2-diphenyl-1-picrylhydrazyl activity analysis showed lower amount of free radicals in colored wheat seeds on chronic irradiation with low dosage of gamma rays compared to seeds subjected to acute irradiation.

SUBMITTER: Hong MJ 

PROVIDER: S-EPMC6136369 | biostudies-literature | 2018 Jul/Sept.

REPOSITORIES: biostudies-literature