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Zhou Y, Zhang MX, Sun M, Wan LS, Chen JS, Zhang ZX. Effects of the Insect Growth Regulators Azadirachtin, Pyriproxyfen, and Tebufenozide on the Fatty Acid Metabolome of Bactrocera Dorsalis Larvae. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:1462-1472. [PMID: 38197605 DOI: 10.1021/acs.jafc.3c07153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
Insects' lipids, including fatty acids, as the second largest constituents in insects, play a variety of fundamental and vital functions. However, there is a lack of reports on the effects of insect growth regulators on fatty acid profiles and metabolic mechanisms. Therefore, in this study, a comparative study of three growth regulators, azadirachtin, pyriproxyfen, and tebufenozide, on fatty acids was carried out using a targeted metabolomics approach to fill this gap. The results showed that when exposed to azadirachtin, pyriproxyfen, and tebufenozide, there were 14, 17, and 11 differentially regulated fatty acids, respectively. The pathway of biosynthesis of unsaturated fatty acids was the common shared pathway, while fatty acid biosynthesis and linoleic acid metabolism were the specific pathways affected by the 3 insect growth regulators. Therefore, the results could be helpful to deepen the effects of azadirachtin and insect growth regulators on terrestrial insects.
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Affiliation(s)
- You Zhou
- College of Biology and Food Engineering, Chongqing Three Gorges University, Chongqing 404100, China
- Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou 510642, China
| | - Min Xing Zhang
- College of Agriculture and Forestry Science and Technology, Chongqing Three Gorges Vocational College, Chongqing 404155, China
| | - Miao Sun
- College of Biology and Food Engineering, Chongqing Three Gorges University, Chongqing 404100, China
| | - Lu Sheng Wan
- College of Biology and Food Engineering, Chongqing Three Gorges University, Chongqing 404100, China
| | - Jing Sheng Chen
- College of Biology and Food Engineering, Chongqing Three Gorges University, Chongqing 404100, China
| | - Zhi Xiang Zhang
- Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou 510642, China
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Yang X, Hafeez M, Chen HY, Li WT, Ren RJ, Luo YS, Abdellah YAY, Wang RL. DIMBOA-induced gene expression, activity profiles of detoxification enzymes, multi-resistance mechanisms, and increased resistance to indoxacarb in tobacco cutworm, Spodoptera litura (Fabricius). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 267:115669. [PMID: 37944464 DOI: 10.1016/j.ecoenv.2023.115669] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 10/22/2023] [Accepted: 11/05/2023] [Indexed: 11/12/2023]
Abstract
Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae) is one of the most destructive insect pests owned strong resistance to different insecticides. Indoxacarb as a novel oxadiazine insecticide becomes the main pesticide against S. litura. DIMBOA [2,4-dihydroxy-7-methoxy-2 H-1,4-benz-oxazin-3(4 H)-one] is involved in important chemical defense processes in corn plants. However, the insects' adaptation mechanism to insecticides when exposed to defensive allelochemicals in their host plants remains unclear. Here, we assessed multi-resistance, and resistance mechanisms based on S. litura life history traits. After 18 generations of selection, indoxacarb resistance was increased by 61.95-fold (Ind-Sel) and 86.06-fold (Dim-Sel) as compared to the Lab-Sus. Also, DIMBOA-pretreated larvae developed high resistance to beta-cypermethrin, chlorpyrifos, phoxim, chlorantraniliprole, and emamectin benzoate. Meanwhile, indoxacarb (LC50) was applied to detect its impact on thirty-eight detoxification-related genes expression. The transcripts of SlituCOE073, SlituCOE009, SlituCOE074, and SlituCOE111 as well as SlGSTs5, SlGSTu1, and SlGSTe13 were considerably raised in the Ind-Sel strain. Among the twenty-three P450s, CYP6AE68, CYP321B1, CYP6B50, CYP9A39, CYP4L10, and CYP4S9v1 transcripts denoted significantly higher levels in the Ind-Sel strain, suggesting that CarEs, GSTs and P450s genes may be engaged in indoxacarb resistance. These outcomes further highlighted the importance of detoxification enzymes for S. litura gene expression and their role in responses to insecticides and pest management approaches.
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Affiliation(s)
- Xi Yang
- Guangdong Engineering Technology Research Centre of Modern Eco-agriculture and Circular Agriculture, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Heyuan Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Heyuan 517000, China; Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, China
| | - Muhammad Hafeez
- Department of Horticulture, Oregon State University, Corvallis, OR 97331, USA; USDA-ARS Horticultural Crops Research Unit, 3420 NW Orchard Avenue, Corvallis, OR 97330, USA
| | - Hong-Yu Chen
- Guangdong Engineering Technology Research Centre of Modern Eco-agriculture and Circular Agriculture, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Heyuan Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Heyuan 517000, China; Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, China
| | - Wan-Ting Li
- Guangdong Engineering Technology Research Centre of Modern Eco-agriculture and Circular Agriculture, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Heyuan Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Heyuan 517000, China; Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, China
| | - Rong-Jie Ren
- Guangdong Engineering Technology Research Centre of Modern Eco-agriculture and Circular Agriculture, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Heyuan Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Heyuan 517000, China; Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, China
| | - Yu-Sen Luo
- Guangdong Engineering Technology Research Centre of Modern Eco-agriculture and Circular Agriculture, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Heyuan Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Heyuan 517000, China; Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, China
| | - Yousif Abdelrahman Yousif Abdellah
- Guangdong Engineering Technology Research Centre of Modern Eco-agriculture and Circular Agriculture, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Heyuan Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Heyuan 517000, China; Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, China.
| | - Rui-Long Wang
- Guangdong Engineering Technology Research Centre of Modern Eco-agriculture and Circular Agriculture, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China; Heyuan Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Heyuan 517000, China; Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture and Rural Affairs, South China Agricultural University, Guangzhou 510642, China.
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