Effect of N~+ion implantation on antioxidase activity in Blakeslea trispora

摘要

The effect of N~+implantation on the activities of CAT,POD,SOD,T-AOC and the capacities of scavenging O_2~(-·)and OH~· in Blakeslea trispora(-)were studied.Results showed that N~+implantation caused different changes of CAT,POD,SOD,T-AOC activities and cell scavenging O_2~(-·)and OH~· capacities.With the implantation dose increasing CAT activity was lower than the control sample,while POD,SOD activities and the scavenging O_2~(-·)and OH~· capacities all decreased at the beginning,and then increased lately.At the dose of 6.0 X 10~(15)N~+cm~(-2)T-AOC activity was lowest,while at the dose of 1.2 X 1015 N~+cm~2 its activity was highest,and this change trend was same to the B.trispora(-)survival rate curve.So we speculated that the changes of these antioxidases activity of B.trispora(-)induced by low-energy N~+probably have some relationship with its"saddle shape"survival rate curve.