Impact of Beauveria bassiana on antioxidant enzyme activities and metabolomic profiles of Spodoptera frugiperda
文献类型： 外文期刊
作者： Zhang, Chen 1 ; Teng, Bin 2 ; Liu, Huimin 1 ; Wu, Chenyuan 1 ; Wang, Lei 1 ; Jin, Song 3 ;
作者机构： 1.Anhui Agr Univ, Coll Life Sci, Hefei 230036, Peoples R China
2.Anhui Acad Agr Sci, Inst Rice Res, Hefei 230031, Peoples R China
3.Univ Wyoming, Dept Civil & Architectural Engn, Laramie, WY 82071 USA
关键词： Spodoptera frugiperda; Beauveria bassiana; Metabolomics; Antioxidative enzyme; Oxidative stress
期刊名称：JOURNAL OF INVERTEBRATE PATHOLOGY （ 影响因子：3.4； 五年影响因子：3.1 ）
ISSN： 0022-2011
年卷期： 2023 年 198 卷
页码：
收录情况： SCI
摘要： Spodoptera frugiperda is a pest that poses a serious threat to the production of food and crops. Entomopathogenic fungi, such as Beauveria bassiana, have shown potential for S. frugiperda control. However, the mechanism of this biological control of pathogens is not fully understood, such as how antioxidant enzyme activities and metabolic profiles in S. frugiperda larvae are affected when infected by entomopathogenic fungi. This study assessed the antioxidant enzyme activities and shift in metabolomic profile in the S. frugiperda larvae infected with B.bassiana. The results indicate a pattern of initial increase and subsequent decrease in the activities of superoxide dismutase, catalase, and peroxidase in the B.bassiana-infected larvae. And the enzyme activities at 60 h of infection ended significantly lower than those of the uninfected larvae. A total of 93 differential metabolites were identified in the B.bassiana-infected larvae, of which 41 metabolites were up-regulated and 52 were down-regulated. These metabolites mainly included amino acids, nucleotides, lipids, carbohydrates, and their derivatives. Among the changed metabolites, cystathionine, L-tyrosine, L-dopa, arginine, alpha-ketoglutaric acid, D-sedoheptulose-7phosphate and citric acid were significantly decreased in B. bassiana-infected larvae. This indicated that the fungal infection might impair the ability of S. frugiperda larvae to cope with oxidative stress, leading to a negative impact of organism fitness. Further analyses of key metabolic pathways reveal that B. bassiana infection might affect purine metabolism, arginine biosynthesis, butanoate metabolism, and phenylalanine metabolism of S. frugiperda larvae. The findings from this study will contribute to our understanding of oxidative stress on immune defense in insects, and offer fundamental support for the biological control of S. frugiperda.
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