Metabolic Resistance in Abamectin-Resistant Bemisia tabaci Mediterranean from Northern China
文献类型： 外文期刊
作者： Wang, Ran 1 ; Fang, Yong 2 ; Che, Wunan 3 ; Zhang, Qinghe 1 ; Wang, Jinda 4 ; Luo, Chen 1 ;
作者机构： 1.Beijing Acad Agr & Forestry Sci, Inst Plant Protect, Beijing 100097, Peoples R China
2.Hunan Acad Agr Sci, Agr Biotechnol Inst, Changsha 410125, Peoples R China
3.Shenyang Agr Univ, Dept Pesticide Sci, Shenyang 110866, Peoples R China
4.Fujian Agr & Forestry Univ, Natl Engn Res Ctr Sugarcane, Fuzhou 350002, Peoples R China
关键词： Bemisia tabaci; abamectin; cross-resistance; synergistic effects; metabolic enzymes; inheritance; resistance management
期刊名称：TOXINS （ 影响因子：5.075； 五年影响因子：5.305 ）
ISSN：
年卷期： 2022 年 14 卷 7 期
页码：
收录情况： SCI
摘要： Abamectin, produced by the soil-dwelling actinomycete Streptomyces avermitilis, belongs to the macrocyclic lactones class of pesticides, has nematocidal, acaricidal, and insecticidal activity, and is highly effective when used against targeted species. Bemisia tabaci, the tobacco whitefly, is a highly destructive insect to agricultural production worldwide, and various insecticide-resistant strains have been identified in China. Here, we monitored levels of resistance to abamectin in twelve field-collected B. tabaci populations from northern China, and confirmed that, compared with the lab reference strain, six field populations exhibited strong abamectin resistance, while the other six exhibited low-to-medium resistance. Among these, the Xinzheng (XZ) population displayed about a 40-fold increased resistance to abamectin, and experienced significant cross-resistance to chlorpyrifos and imidacloprid. The abamectin resistance of XZ was found to be autosomal and incompletely dominant. Metabolic enzyme and synergism tests were conducted, and two metabolic enzymes, glutathione S-transferase and P450 monooxygenase, were found to be conducive to the field-developed abamectin resistance of the XZ population. The above results provide valuable information that can be used in identifying new pest control strategies and delaying the evolution of resistance to abamectin in field populations of whiteflies.
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