您好，欢迎访问福建省农业科学院 机构知识库！
福建省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Sublethal and Transgenerational Toxicities of Chlorfenapyr on Biological Traits and Enzyme Activities of Paracoccus marginatus (Hemiptera: Pseudococcidae)

文献类型： 外文期刊

作者： Li, Jian-Yu 1 ; Chen, Yan-Ting 1 ; Wang, Qiu-Yue 1 ; Zheng, Li-Zhen 1 ; Fu, Jian-Wei 2 ; Shi, Meng-Zhu 1 ;

作者机构： 1.Fujian Acad Agr Sci, Fujian Engn Res Ctr Green Pest Management, Inst Plant Protect, Fujian Key Lab Monitoring & Integrated Management, Fuzhou 350013, Peoples R China

2.Fujian Acad Agr Sci, Inst Qual Stand & Testing Technol Agroprod, Fujian Key Lab Agroprod Qual & Safety, Fuzhou 350001, Peoples R China

关键词： Paracoccus marginatus; chlorfenapyr; sublethal dose exposure; transgenerational effects; enzyme activities

期刊名称：INSECTS （ 影响因子：3.139； 五年影响因子：3.285 ）

ISSN：

年卷期： 2022 年 13 卷 10 期

页码：

收录情况： SCI

摘要： Simple Summary Papaya mealybug, Paracoccus marginatus, is an important invasive pest worldwide, which attacks more than 200 host plants. Chlorfenapyr has been demonstrated to have a significant control effect on P. marginatus. To evaluate the long-term sublethal effects of chlorfenapyr on P. marginatus, the sublethal and transgenerational effects of chlorfenapyr on the biological traits and changes of enzyme activities of P. marginatus were investigated. The results showed that chlorfenapyr had significant effects on the development of subsequent generations of P. marginatus, and chlorfenapyr also activated the activities of SOD of P. marginatus. The results demonstrated that chlorfenapyr-mediated sublethal effects occur in at least two successive generations of P. marginatus. Therefore, it is necessary to reapply the chlorfenapyr prior to emergence of the F-3 generation to suppress the population and prevent outbreaks of P. marginatus. Papaya mealybug, Paracoccus marginatus Williams and Granara de Willink (Hemiptera: Pseudococcidae), is an economically important, invasive insect that is now distributed worldwide. Chlorfenapyr has been demonstrated to have a significant control effect on P. marginatus. In order to evaluate the sublethal and transgenerational effects of chlorfenapyr on P. marginatus, the life table data of three consecutive generations were collected and analyzed by the age stage, two-sex life table method, and the enzyme activities were assayed using a spectrophotometer. The results showed that exposure to the insecticide had significant effects on the biological traits of subsequent generations of P. marginatus, and a higher intrinsic rate of increase (r), finite rate of increase (lambda), net reproductive rate (R-0), and a shorter mean generation time (T) were observed in the chlorfenapyr-treated F-1 mealybugs. Enzyme activity assays showed that chlorfenapyr significantly inhibited the activities of catalase (CAT) and peroxidase (POD) while activating the activities of superoxide dismutase (SOD), which suggested that SOD, CAT, and POD may play an important role in the self-defense of P. marginatus against chlorfenapyr. These results conclusively demonstrated that exposure of P. marginatus to sublethal concentrations of chlorfenapyr induced hormetic effects on the F-1 generation while having negative effects on the F-0 and F-3 generations.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：福建省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台