Comparison for activities of detoxifying enzymes in resistant- and susceptible-imidacloprid endosymbiotic strains of rice brown planthopper, Nilaparvata lugens Stal

›› 2010, Vol. 22 ›› Issue (5): 653-659.

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Comparison for activities of detoxifying enzymes in resistant- and susceptible-imidacloprid endosymbiotic strains of rice brown planthopper, Nilaparvata lugens Stal

LI Na;CHEN Jian-ming;*;ZHANG Jue-feng;HE Yue-ping;CHEN Lie-zhong

¹ College of Life and Environment Sciences, Hangzhou Normal University, Hangzhou 310036, China; ²Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China

Received:1900-01-01 Revised:1900-01-01 Online:2010-09-25 Published:2010-09-25

Abstract

Abstract: Activities of detoxifying enzymes in resistant- and susceptible-imidacloprid endusymbiotic strains of rice brown planthopper, Nilaparvata lugens were compared. The results showed that resistant- and susceptible-imidacloprid strains had significant difference in activities of detoxifying enzymes, in which, activities of carboxylesterase, mixed function oxidase in resistant-imidacloprid strains were significantly higher than those in susceptible-imidacloprid strains, while activity of glutathione-S-transferase showed no obvious difference between resistant-and susceptible-imidacloprid strains. It was suggested that resistant increasing of N. lugens symbiotes to imidacloprid was related to enhencement of carboxylesterase, mixed function oxidase activities．

Key words: Nilaparvata lugens endosymbiotes, resistant-imidacloprid strain, susceptible-imidacloprid strain, activity of detoxifying enzymes, resistance

LI Na;CHEN Jian-ming;*;ZHANG Jue-feng;HE Yue-ping;CHEN Lie-zhong. Comparison for activities of detoxifying enzymes in resistant- and susceptible-imidacloprid endosymbiotic strains of rice brown planthopper, Nilaparvata lugens Stal[J]. , 2010, 22(5): 653-659.

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Comparison for activities of detoxifying enzymes in resistant- and susceptible-imidacloprid endosymbiotic strains of rice brown planthopper, Nilaparvata lugens Stal

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