Journal Article

Changes in intestinal bacterial communities are closely associated with shrimp disease severity

Xiong, Jinbo, Qian, Yunxia, Yang, Kunjie, Wang, Kai, Qiuqian, Linglin, Zhang, Demin, Wu, Jinfeng

2015

Overview

Increasing evidence has revealed a close association between intestinal bacterial communities and human health. However, given that host phylogeny shapes the composition of intestinal microbiota, it is unclear whether changes in intestinal microbiota structure in relation to shrimp health status. In this study, we collected shrimp and seawater samples from ponds with healthy and diseased shrimps to understand variations in bacterial communities among habitats (water and intestine) and/or health status. The bacterial communities were clustered according to the original habitat and health status. Habitat and health status constrained 14.6 and 7.7 % of the variation in bacterial communities, respectively. Changes in shrimp intestinal bacterial communities occurred in parallel with changes in disease severity, reflecting the transition from a healthy to a diseased state. This pattern was further evidenced by 38 bacterial families that were significantly different in abundance between healthy and diseased shrimps; moderate changes were observed in shrimps with sub-optimal health. In addition, within a given bacterial family, the patterns of enrichment or decrease were consistent with the known functions of those bacteria. Furthermore, the identified 119 indicator taxa exhibited a discriminative pattern similar to the variation in the community as a whole. Overall, this study suggests that changes in intestinal bacterial communities are closely associated with the severity of shrimp disease and that indicator taxa can be used to evaluate shrimp health status.

• Publisher: Springer Berlin Heidelberg,Springer,Springer Nature B.V
• Subject: Animal diseases / Animals / Antibiotics / Bacteria / Bacteria - classification / Bacteria - genetics / bacterial communities / Biomedical and Life Sciences / Biota / Biotechnology / Chemical analysis / Chemical oxygen demand / communities / Decapoda / Disease / disease severity / DNA, Bacterial - chemistry / DNA, Bacterial - genetics / Environmental aspects / Environmental Biotechnology / Epidemics / Gastrointestinal Tract - microbiology / Habitats / Health aspects / Health care / health status / human health / Hypotheses / indicator species / Intestinal microflora / intestinal microorganisms / Intestine / intestines / Life Sciences / Microbial Genetics and Genomics / Microbiological research / Microbiology / Microbiota / Microbiota (Symbiotic organisms) / Microorganisms / Molecular Sequence Data / Penaeidae - microbiology / Penaeidae - physiology / Phylogenetics / Phylogeny / Ponds / Public health / Seawater / Seawater - microbiology / Sequence Analysis, DNA / Shellfish / shrimp / Shrimps / Shrimps (Animals) / Studies / Variation / Water analysis