The Effect of Silver Nitrate on Three Oxidase Isozymes of Gynoecious Cucumber Plant (Cucumis sativus L.)
硝酸银对雌性黄瓜植株三种氧化酶同工酶的影响

The activity of peroxidase in the shoot tips and the leaves of gynoecious cucumber plants increased significantly after treatment of silver nitrate. The maximum increment was 178.2% in the shoot tips after 24 hours and 284.6% in leaves after 36 hours. Meanwhile, new isozyme bands in peroxidase, polyphenol oxidase and superoxide dismutase were developed by silver nitrate treatment. It is considere d that the response of cucumber plants to silver ion injury resulted in the rising of activity and the production of new oxidase isozymes.