Mechanism of Rotenone Toxicity against Plutella xylostella: New Perspective from a Spatial Metabolomics and Lipidomics Study
文献类型： 外文期刊
作者： Li, Ping 1 ; Tian, Yongqing 1 ; Du, Mingyi 1 ; Xie, Qingrong 1 ; Chen, Yingying 1 ; Ma, Lianlian 1 ; Huang, Yudi 1 ; Yin, Zhibin 4 ; Xu, Hanhong 1 ; Wu, Xinzhou 1 ;
作者机构： 1.South China Agr Univ, State Key Lab Conservat & Utilizat Subtrop Agrobio, Guangzhou 510642, Peoples R China
2.South China Agr Univ, Minist Educ, Key Lab Nat Pesticide & Chem Biol, Guangzhou 510642, Peoples R China
3.South China Agr Univ, Coll Plant Protect, Key Lab Biopesticide Creat & Applicat Guangdong Pr, Guangzhou 510642, Peoples R China
4.Guangdong Acad Agr Sci, Agrobiol Gene Res Ctr, Guangzhou 510640, Peoples R China
关键词： rotenone; Plutella xylostella; metabolomics; lipidomics; mass spectrometry imaging
期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：5.895； 五年影响因子：6.048 ）
ISSN： 0021-8561
年卷期：
页码：
收录情况： SCI
摘要： The botanical pesticide rotenone can effectively control target pest Plutella xylostella, yet insights into in situ metabolic regulation of P. xylostella toward rotenone remain limited. Herein, we demonstrated metabolic expression levels and spatial distribution of rotenone-treated P. xylostella using spatial metabolomics and lipidomics. Specifically, rotenone significantly affected purine and amino acid metabolisms, indicating that adenosine monophosphate and inosine were distributed in the whole body of P. xylostella with elevated levels, while guanosine 5 '-monophosphate and tryptophan were significantly downregulated. Spatial lipidomics results indicated that rotenone may significantly destroy glycerophospholipids in cell membranes of P. xylostella, inhibit fatty acid biosynthesis, and consume diacylglycerol to enhance fat oxidation. These findings revealed that high toxicity of rotenone toward P. xylostella may be ascribed to negative effects on energy production and amino acid synthesis and damage to cell membranes, providing guidelines for the toxicity mechanism of rotenone on target pests and rational development of botanical pesticide candidates.
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