Acetylcholinesterase sensitivity and carbamate insecticide resistance in rice leaf beetle, Oulema oryzae Kuwayama (Coleoptera: Chrysomelidae).

被引：0
|
作者：
Konno, Y [1 ]
Domon, K [1 ]
机构：
[1] Tohoku Natl Agr Expt Stn, Akita 0140102, Japan
来源：
JAPANESE JOURNAL OF APPLIED ENTOMOLOGY AND ZOOLOGY | 1998年 / 42卷 / 01期
关键词：
rice leaf beetle; Oulema oryzae; resistance; acetylcholinesterase; carbamate;
D O I：
暂无
中图分类号：
Q96 [昆虫学];
学科分类号：
摘要：
We investigated the LD50 values and acetylcholinesterase (AChE) sensitivity to carbamate insecticides in the rice leaf beetle, Oulema oryzae Kuwayama. Resistant populations showed high levels of resistance to PHC (> 28,000x), BPMC (135x to 151x) and benfuracarb (21x to 29x). The median inhibition concentration (I-50) of carbamates to AChE in resistant populations was clearly greater than in susceptible populations. The acetylcholinesterase insensitivity ratio (IR) values ranged from 634x (benfuracarb) to > 20,000x (PHC and BPMC). Therefore, insensitivity to AChE is an important mechanism in carbamate resistance in the rice leaf beetle.
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页码：30 / 32
页数：3
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