Latest Cover

Online Office

Contact Us

Issue:ISSN 2095-1353
           CN 11-6020/Q
Director:Chinese Academy of Sciences
Sponsored by:Chinese Society of Entomological;institute of zoology, chinese academy of sciences;
Address:Chaoyang District No. 1 Beichen West Road, No. 5 hospital,Beijing City,100101, China
Tel:+86-10-64807137
Fax:+86-10-64807137
Email:entom@ioz.ac.cn
Your Position :Home->Past Journals Catalog->2022年59 No.1

Effects of plant secondary metabolites on the growth, development and detoxification enzyme activity, of Spodoptera exigua
Author of the article:FAN Neng-Neng;WANG Jin-Yan;WAN Nian-Feng;JIANG Jie-Xian
Author's Workplace:College of Life Science and Fishery, Shanghai Ocean University, Shanghai 201306, China; Eco-environmental Protection Research Institute, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China
Key Words:quercetin; kaempferol; coumarin; mortality; caboxylesterase; glutathione -S-transferase; cytochrome P450
Abstract:
[Objectives]  To determine the effects of plant secondary metabolites on the growth, development and detoxification enzyme activity, of Spodoptera exigua, and investigate the potential of using these substances to control this pest. [Methods]  Three different concentrations (0.01%, 0.1% and 1.0%) of three different plant secondary compounds, quercetin, kaempferol or coumarin, were added to the artificial diet fed to 3rd instar S. exigua larvae and their growth and development were observed and compared. In addition, the activity of caboxylesterase, glutathione S-transferase and cytochrome P450, were measured 24, 48 and 72 h after larvae had been treated with 0.1% quercetin, kaempferol or coumarin. [Results]  All three secondary metabolites significantly increased larval mortality. The pupal weight of larvae treated with of 1.0% quercetin was significantly less than that of the control group, whereas their developmental duration was obviously longer. CarE activity was significantly higher in larvae treated with 0.1% kaempferol, but 0.1% quercetin and 0.1% coumarin significantly inhibited CarE activity. Although quercetin had no significant effect on GSTs, 0.1% kaempferol and 0.1% coumarin increased GSTs. The P450 activity of larvae treated with 0.1% quercetin or 0.1% coumarin was higher than that of the control group, although not significantly so, whereas the P450 activity of larvae treated with 0.1% kaempferol was significantly lower than that of the control group after 48 hours. [Conclusion]  Different plant secondary metabolites have different effects on the growth and detoxification enzyme activity of S. exigua larvae.
CopyRight©2024 Chinese Journal of Aplied Entomology