Key Laboratory of Agricultural Biosafety and Green Production of Upper Yangtze River, Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400716, People's Republic of China.
J Agric Food Chem. 2023 Sep 13;71(36):13244-13254. doi: 10.1021/acs.jafc.3c03679. Epub 2023 Aug 30.
acts as an endophytic fungus that controls herbivorous pests by stimulating plant defenses and inducing systemic resistance. Through multiomics analysis, 325 differential metabolites and 1739 differential expressed genes were observed in tomatoes treated with by root irrigation; meanwhile, 152 differential metabolites and 1002 differential genes were observed in tomatoes treated by local leaf spraying. Among the upregulated metabolites were α-solanine, 5--caffeoylshikimic acid, clerodendrin A, and peucedanin, which demonstrated anti-insect activity. These differential metabolites were primarily associated with alkaloid biosynthesis, flavonoid biosynthesis, and tryptophan metabolism pathways. Furthermore, the gene silencing of UDP-glucose:sterol glucosyltransferase, a gene involved in α-solanine synthesis, indicated that could inhibit the reproduction of whiteflies by regulating α-solanine. This study highlighted the ability of to modulate plant secondary metabolites and emphasized the significance of understanding and harnessing multitrophic interactions of endophytic for sustainable agriculture.
作为一种内生真菌，通过刺激植物防御和诱导系统抗性来控制食草害虫。通过多组学分析，用根灌法处理的番茄中观察到 325 种差异代谢物和 1739 个差异表达基因；同时，局部叶喷处理的番茄中观察到 152 种差异代谢物和 1002 个差异基因。上调的代谢物中包括α-茄碱、5--咖啡酰莽草酸、 clerodendrin A 和 peucedanin，它们具有抗虫活性。这些差异代谢物主要与生物碱生物合成、类黄酮生物合成和色氨酸代谢途径相关。此外，参与α-茄碱合成的 UDP-葡萄糖：甾醇葡萄糖基转移酶基因的沉默表明， 可以通过调节α-茄碱来抑制粉虱的繁殖。本研究强调了内生真菌调节植物次生代谢物的能力，并强调了理解和利用内生真菌的多营养相互作用对于可持续农业的重要性。
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