Community composition, diversity, and metabolism of intestinal microbiota in cultivated European eel (Anguilla anguilla)

文献类型： 外文期刊

第一作者： Huang, Wei

作者： Huang, Wei;Liu, Lanying;Lv, Xin;Chen, Lihua;Wu, Miaohong;Wang, Chao;Song, Yongkang;Cheng, Zhiqiang;Lei, Shaonan;Tian, Baoyu

作者机构：

关键词： Cultivated European eel; Intestinal microbiome; Community composition; Metabolic potential; Fish health and nutrients

期刊名称：APPLIED MICROBIOLOGY AND BIOTECHNOLOGY （ 影响因子：4.813； 五年影响因子：4.697 ）

ISSN： 0175-7598

年卷期： 2018 年 102 卷 9 期

页码：

收录情况： SCI

摘要： The intestinal tract, which harbours tremendous numbers of bacteria, plays a pivotal role in the digestion and absorption of nutrients. Here, high-throughput sequencing technology was used to determine the community composition and complexity of the intestinal microbiota in cultivated European eels during three stages of their lifecycle, after which the metabolic potentials of their intestinal microbial communities were assessed. The results demonstrated that European eel intestinal microbiota were dominated by bacteria in the phyla Proteobacteria and Fusobacteria. Statistical analyses revealed that the three cultured European eel life stages (elver, yellow eel, and silver eel) shared core microbiota dominated by Aeromonas. Phylogenetic Investigation of Communities by Reconstruction of Unobserved States (PICRUSt) predictions of metagenome function revealed that the European eel intestinal microbiota might play significant roles in host nutrient metabolism. Biolog AN MicroPlate (TM) analysis and extracellular enzyme assays of culturable intestinal bacteria showed that the intestinal microbiota have a marked advantage in the metabolism of starch, which is the main carbohydrate component in European eel formulated feed. Understanding the ecology and functions of the intestinal microbiota during different developmental stages will help us improve the effects of fish-based bacteria on the composition and metabolic capacity of nutrients in European eels.

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