紫外线辐射对水螅三种保护酶活性的影响  

THE AFFECTION OF ULTRAVIOLET ON THREE PROTECTABLE ENZYME OF ROBUST HYDRA

作　　者：方芳[1] 乔淑晶[1] 陈瑛[1] 范学铭[1] 

机构地区：[1]哈尔滨师范大学

出　　处：《哈尔滨师范大学自然科学学报》2006年第6期83-85,98,共4页Natural Science Journal of Harbin Normal University

基　　金：黑龙江省自然科学基金(TC2005-18);黑龙江省教育厅自然科学基金(10541096)

摘　　要：用波长为365 nm的4 W紫外线灯照射水螅,50 min时水螅全部死亡,LD_(50)=26 min．紫外线灯照射对水螅超氧化物歧化酶(SOD)、过氧化物酶(POD)和过氧化氢酶(CAT)影响显著．在水螅恢复的过程中三种酶活性开始阶段均有不同程度的提高,SOD 16 h后、POD和CAT 24 h后酶活力分别逐渐下降．说明水螅在抗紫外线的修复过程中保护酶起到了一定的作用．Using 365 nm 4 W ultraviolet light radiate Hydra robusta,when it is 50 min,all hydra died,LD_(50)=26 min.Its affection on superoxide dismutase (SOD),eroxidase (POD) and catalase(CAT) is obvious.At the beginning,the activity of three kinds of enzyme increases in different degrees,SOD which is after 16 h and POD and CAT which are after 24 h are decreasing.It is proved that in the process of resisting ultraviolet the protectable enzyme do some function.

关 键 词：强壮水螅 紫外线辐射 LD50 超氧化物岐化酶 过氧化物酶 过氧化氢酶 

分 类 号：N55[自然科学总论] G658.3[文化科学—教育学]