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ECB-ART-49622
Genomics 2020 Nov 01;1126:5012-5020. doi: 10.1016/j.ygeno.2020.09.017.
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Quantitative microbiome profiling links microbial community variation to the intestine regeneration rate of the sea cucumber Apostichopus japonicus.

Zhang H , Wang Q , Zhao J , Liu S , Zhang L , Zhao Y , Yang H , Sun L .


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The intestinal microbiota may play important roles in regenerating intestine of the sea cucumber Apostichopus japonicus, the underlying mechanism remains unclear. In the present study, a germ-free sea cucumber model was developed, and the intestinal microbial differentiation of faster and slower regenerating A. japonicus individuals during intestine regeneration was analyzed. The results revealed that depletion of the intestinal microbiota resulted in elevated abundance of the potential key players Flavobacteriaceae and Rhodobacteraceae during intestine regeneration and thus promoted the intestine regeneration rate of A. japonicus. Metagenomic analysis revealed that the increased abundance of Flavobacteriaceae elevated the enrichment of genes associated with carbohydrate utilization, whereas the abundant Rhodobacteraceae-enriched genes were associated with polyhydroxybutyrate production. We identified microbiota abundance as a key driver of microbial community alterations, especially beneficial microbiota members, in the developing intestine of A. japonicus. This study provides new insights into the mechanism of host-microbiota interactions related to organ regeneration.

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