Chemical profile changes in Peanut seeds infected with aspergillus flavus via widely targeted metabolomics
文献类型： 外文期刊
作者： Zhou, Yueni 1 ; Xu, Mengyun 2 ; Umer, Muhammad J. 1 ; Wang, Runfeng 1 ; Xiao, Yuan 3 ; Zheng, Zihao 4 ; Huai, Dongxin 5 ; Li, Shaoxiong 1 ; Lu, Qing 1 ; Hong, Yanbin 1 ; Chen, Xiaoping 1 ; Liu, Hao 1 ;
作者机构： 1.Guangdong Acad Agr Sci, Crops Res Inst, South China Peanut Sub Ctr Natl Ctr Oilseed Crops, Guangdong Prov Key Lab Crop Genet Improvement, Guangzhou 510640, Guangdong, Peoples R China
2.South China Agr Univ, Coll Nat Resources & Environm, Guangzhou 510642, Guangdong, Peoples R China
3.Wannan Med Coll, Sch Publ Hlth, Wuhu 241002, Anhui, Peoples R China
4.Iowa State Univ, Dept Agron, Ames, IA 50011 USA
5.Chinese Acad Agr Sci, Minist Agr & Rural Affairs, Key Lab Biol & Genet Improvement Oil Crops, Oil Crops Res Inst, Wuhan 430062, Hubei, Peoples R China
关键词： Peanut seeds; Aspergillus flavus; Metabolomics; Phenolic acids; Biomarker
期刊名称：FOOD CHEMISTRY （ 影响因子：9.8； 五年影响因子：9.7 ）
ISSN： 0308-8146
年卷期： 2025 年 471 卷
页码：
收录情况： SCI
摘要： Peanut seeds are enriched with protein and fatty acids, making them susceptible to infection by Aspergillus flavus (A. flavus). The infected seeds are harmful to human health due to the aflatoxin contamination. Despite ongoing research, a comprehensive understanding of the metabolite variations in peanut seeds during A. flavus infection remains elusive. In this study, we established a detailed endogenous chemical profile consisting of 1462 metabolites in shelled peanut seeds, identified 895 and 671 differentially expressed metabolites (DEMs) on the 3rd and 6th days post-infection by A. flavus, respectively. Among these, 425 DEMs were common to both profiles, with the majority of co-expressed DEMs displaying an up-regulated expression pattern in response to A. flavus infection. Further metabolites interaction analysis indicated that phenolic acids significantly correlated with A. flavus infection. Specifically, five metabolites classified as phenolic acids demonstrated the ability to repress A. flavus growth in vitro. The anti-infection properties of peanut phenolic acids were confirmed by their higher content in resistant peanut varieties. Overall, our study elucidates the chemical profile of endogenous metabolite variations in A. flavus infected peanut seeds, demonstrating that elevated phenolic acid content can be employed as a biomarker for identifying peanut varieties resistant to A. flavus infection.
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