A high-resolution map of the gut microbiota in Atlantic salmon (Salmo salar): A basis for comparative gut microbial research
Citations Over TimeTop 1% of 2016 papers
Abstract
Gut health challenges, possibly related to alterations in gut microbiota, caused by plant ingredients in the diets, cause losses in Atlantic salmon production. To investigate the role of the microbiota for gut function and health, detailed characterization of the gut microbiota is needed. We present the first in-depth characterization of salmon gut microbiota based on high-throughput sequencing of the 16S rRNA gene's V1-V2 region. Samples were taken from five intestinal compartments: digesta from proximal, mid and distal intestine and of mucosa from mid and distal intestine of 67.3 g salmon kept in seawater (12-14 °C) and fed a commercial diet for 4 weeks. Microbial richness and diversity differed significantly and were higher in the digesta than the mucosa. In mucosa, Proteobacteria dominated the microbiota (90%), whereas in digesta both Proteobacteria (47%) and Firmicutes (38%) showed high abundance. Future studies of diet and environmental impacts on gut microbiota should therefore differentiate between effects on mucosa and digesta in the proximal, mid and the distal intestine. A core microbiota, represented by 22 OTUs, was found in 80% of the samples. The gut microbiota of Atlantic salmon showed similarities with that of mammals.
Related Papers
- → Functional potential differences between Firmicutes and Proteobacteria in response to manure amendment in a reclaimed soil(2020)81 cited
- → Microbial Community Structures and Dynamics in the O3/BAC Drinking Water Treatment Process(2014)26 cited
- → Metagenomic characterization of oyster shell dump reveals predominance of Firmicutes bacteria(2010)14 cited
- → An attempt to find the correlations between body weight and the composition of gut microbiota in Zhejiang and Shanghai(2022)1 cited
- → Highest abundance of Proteobacteria in the gut microbiota of Black-necked cranes(2023)