文献类型： 外文期刊

作者： Gu, Hailong ¹ ; Feng, Yaming ² ; Zhang, Ya ¹ ; Yin, Denghua ¹ ; Yang, Zhijing ² ; Tang, Wenqiao ¹ ;

作者机构： 1.Shanghai Ocean Univ, Minist Educ, Key Lab Explorat & Utilizat Aquat Genet Resource, Shanghai 201306, Peoples R China

2.Jiangsu Acad Agr Sci, Taizhou Inst Agr Sci, Taizhou 225300, Peoples R China

关键词： Parabramis pekinensis; Intestinal microbiota; Habitats; Feeding habits; Intestinal parts

期刊名称：ANNALS OF MICROBIOLOGY （ 影响因子：2.112； 五年影响因子：2.151 ）

ISSN： 1590-4261

年卷期： 2021 年 71 卷 1 期

页码：

收录情况： SCI

摘要： Purpose: To identify the differences in gut bacterial community of Parabramis pekinensis under different growth conditions, and the effect of the diet in a controlled habitat on the community structure, aiming to provide a comprehensive survey of how the gut microbiota in P. pekinensis varies depending on habitat. Methods: A total of 73 P. pekinensis from Yangtze River (W), rivers in the outskirts of Jingjiang (Jiangsu province, China, R), and farms (C) were collected to analyze the intestinal microbiota using high-throughput sequencing of the V3-V4 16S ribosomal RNA gene. We also subdivided the gut into the foregut (F), midgut (M), and hindgut (B) to analyze the differences between them. Results: The dominant bacterial phyla in P. pekinensis were Fusobacteria, Firmicutes, Proteobacteria, and Actinobacteria; meanwhile, Cyanobacteria, Bacteroidetes, Chloroflexi, and Verrucomicrobia were also highly abundant. It is worth noting that the abundance of Fusobacteria Cetobacterium was also very high. The abundance and diversity of the intestinal microbiota structure of fish taken from breeding farm were significantly lower than those taken from Yangtze river and Suburban river, and the abundance of Aeromonas in the gut of fish taken from Yangtze river was much higher than that of fish taken from Suburban river. Compared to midgut, foregut and hindgut have similar microbiota structures, but did not differ significantly in them. Conclusions: The core intestinal microbiota of P. pekinensis is the same to other herbivorous and partially omnivorous fish. There were significant differences in the intestinal microbiota structure of P. pekinensis from different habitats, but no significant differences in the microbiota abundance and diversity between the different parts of the intestine.