Active oxygen generation in gamma-irradiated whole seedlings of Cicer arietinum L.
Whole seedlings of Cicer arietinum L. when exposed to 819 Gy gamma-radiation, were found to emit ultraweak intensity luminescence. The phenomenon was oxygen-dependent, and the intensity of emission could be suppressed by post-irradiation treatment with catalase, superoxide dismutase, and ascorbic acid. Deuterium oxide and luminol amplified the emission intensity. These results suggest that singlet oxygen is a cause of the emission during the post-irradiation phase.
Institute of Self-Organising Systems and Biophysics, North-Eastern Hill University, Meghalaya, India.
B G
BG
Mathew
S
S
Kumar
D001205:Ascorbic Acid / Q000494:pharmacology; D002374:Catalase / Q000494:pharmacology; D017666:Deuterium Oxide; D007887:Fabaceae / Q000378:metabolism / Q000528:radiation effects*; D005720:Gamma Rays; D008163:Luminescent Measurements; D008165:Luminol; D010946:Plants, Medicinal; D017382:Reactive Oxygen Species / Q000032:analysis / Q000378:metabolism*; D013482:Superoxide Dismutase / Q000494:pharmacology
D017382:Reactive Oxygen Species; D008165:Luminol; D002374:Catalase; D013482:Superoxide Dismutase; D017666:Deuterium Oxide; D001205:Ascorbic Acid