朱砂叶螨危害对豇豆幼苗叶片活性氧代谢相关酶的影响  

Effect of carmine spider mite on enzymes related to active oxygen metabolism in cowpea seedling leaves

作　　者：李玉泉[1] 金祖荫[2] 宋占午[2] 

机构地区：[1]西北师范大学研究生处,兰州730070 [2]西北师范大学生命科学学院,兰州730070

出　　处：《西北植物学报》2004年第5期877-880,共4页Acta Botanica Boreali-Occidentalia Sinica

基　　金：甘肃省教委科研资助课题 981-19

摘　　要：朱砂叶螨危害豇豆幼苗后,叶绿体内与活性氧代谢有关的酶SOD、ASP活性及同工酶均受到不同程度的影响. 1 受害2～8d,SOD活性与对照相比均升高,差异显著.不同虫口密度之间在4d时SOD活性差异显著; 2 在危害期内,随着危害时间的延长ASP活性显著升高,且不同虫口密度之间差异极显著,虫口密度越大,ASP活性越高; 3 SOD同工酶谱带显示,随着危害程度的加强,一些分子量较大的同工酶谱带亦加强.The activities of SOD, ASP and SOD isoenzymes have been studied in cowpea (Vigna sinensis)seedling leaves damaged by carmine spider mite (Tetranychus cinnabarinus). The results are as follows:(1) 2~8 d after treatment, the SOD activity increases remarkably, there is a significant difference (P<(0.05)) compared with control group;(2) The ASP activity increased (P<0.01) with damaged days and increasing densities;(3) The SOD had no new isoenzymes induced, but the activities of two SOD isoenzymes enhanced.

关 键 词：朱砂叶螨 豇豆幼苗 SOD工酶谱 抗坏血酸过氧化物酶 

分 类 号：Q945.18[生物学—植物学] S431[农业科学—农业昆虫与害虫防治]