文献类型： 外文期刊
作者： Sun, Dayun 1 ; Qu, Junjie 1 ; Huang, Yu 2 ; Lu, Jiang 3 ; Yin, Ling 1 ;
作者机构： 1.Guangxi Acad Agr Sci, Guangxi Crop Genet Improvement & Biotechnol Key L, Nanning 530007, Guangxi, Peoples R China
2.Guangxi Acad Agr Sci, Grape & Wine Res Inst, Nanning 530007, Guangxi, Peoples R China
3.Shanghai Jiao Tong Univ, Sch Agr & Biol, Ctr Viticulture & Enol, Shanghai 200240, Peoples R China
关键词： Microorganisms; 16S; ITS; Alpha diversity; Pearson correlation; PICRUSt2
期刊名称：FOOD RESEARCH INTERNATIONAL （ 影响因子：6.475； 五年影响因子：6.508 ）
ISSN： 0963-9969
年卷期： 2021 年 145 卷
页码：
收录情况： SCI
摘要： Microorganisms in grape skins play vital roles in grapevine health, productivity, wine quality and organoleptic properties. To investigate microbial diversity of muscadine grape skins, 16S and ITS sequences of 30 samples from six muscadine (Muscadinia rotundifolia Michx.) cultivars grown in Guangxi, China, were sequenced using Illumina Novaseq platform. A total of 7,317 bacterial operational taxonomic units (OTUs) and 1,611 fungal OTUs were obtained, and clustered into 38 bacterial and 7 known fungal phyla. The dominant bacterial phyla were Proteobacteria, Firmicutes, Bacteroidetes, Planctomycetes, Actinobacteria, Verrucomicrobia, Acidobacteria, and Patescibacteria, and the dominant genera were Lelliottia, Prevotella_9, Escherichia-Shigella, Lactobacillus, Pseudomonas, Akkermansia, Faecalibacterium, Rahnella, and Acinetobacter. For fungi, the dominant phyla were Ascomycota, Basidiomycota, and Mortierellomycota, and the dominant genera were Acaromyces, Uwebraunia, Penicillium, Zygosporium, Ilyonectria, Aspergillus, Neodevriesia, Strelitziana, Mortierella, and Fusarium. Alpha diversity analysis and Kruskal-Wallis H test demonstrated that microbial diversity and composition were affected by the cultivar. The Pearson correlation analysis of species revealed complex interactions among microbes. PICRUSt2 predicted that the metabolism of carbohydrates, cofactors, vitamins, amino acids, terpenoids, polyketides, lipids and biosynthesis of other secondary metabolites were abundant. These results contribute to understanding the uniqueness of muscadine grapes and the links among microorganisms in grape skins.
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