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Deciphering Alternaria metabolic responses in microbial confrontation via an integrated mass spectrometric targeted and non-targeted strategy

文献类型： 外文期刊

作者： Tian, Ye 1 ; Abdallah, Mohamed F. 2 ; De Boevre, Marthe 2 ; Wang, Cheng 5 ; Audenaert, Kris 4 ; De Saeger, Sarah 2 ; Wu, Aibo 1 ;

作者机构： 1.Univ Chinese Acad Sci, Chinese Acad Sci, Shanghai Inst Nutr & Hlth, SIBS UGEN SJTU Joint Lab Mycotoxin Res, Shanghai 200031, Peoples R China

2.Univ Ghent, Fac Pharmaceut Sci, Ctr Excellence Mycotoxicol & Publ Hlth, Dept Bioanal, Ottergemsesteenweg 460, B-9000 Ghent, Belgium

3.Assiut Univ, Fac Vet Med, Dept Forens Med & Toxicol, Assiut 71515, Egypt

4.Univ Ghent, Fac Biosci Engn, Dept Plants & Crops, Lab Appl Mycol & Phen, Valentin Vaerwyckweg 1, Ghent 9000, Belgium

5.Xinjiang Acad Agr Sci, Inst Qual Stand & Testing Technol Agroprod, Key Lab Agroprod Qual & Safety Xinjiang, Lab Qual & Safety Risk Assessment Agroprod Urumqi, Urumqi 830091, Xinjiang, Peoples R China

关键词： Microbial confrontation; Metabolic profiling; Alternaria; Trichoderma; Mycotoxin

期刊名称：FOOD CHEMISTRY （ 影响因子：8.8； 五年影响因子：8.6 ）

ISSN： 0308-8146

年卷期： 2023 年 404 卷

页码：

收录情况： SCI

摘要： Microbial confrontation is ubiquitously present in nature, such as mycoparasitism, competition and antibiosis between biocontrol agents and microbial pathogens. However, the internal metabolic responses of fungal pathogens under microbial interaction scenario have been scarcely investigated. In this study, we set up an integrated mycotoxin analysis and non-targeted metabolomics workflow to decipher metabolic changes of Alternaria pathogens when confronted with selected Trichoderma strains, as well as mycotoxin metabolization in the Trichoderma spp. Results demonstrated that Trichoderma spp. significantly influenced mycotoxin production and whole metabolome of Alternaria pathogens when in cocultivation, and one Trichoderma strain could metabolize alternariol into its hydroxylated form. These differential metabolites revealed fungal physiological alternations in various confrontation conditions. In all, a MS-based strategy was proposed to investigate mi-crobial metabolic profiles under fungal/fungal and fungal/mycotoxin cocultivation, and this generic method-ology would be significant for understanding the occurrence and change of food contaminants in microbial interactions.

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