Insights into the Relationship between Intestinal Microbiota of the Aquaculture Worm Sipunculus nudus and Surrounding Sediments

Sipunculus nudus is an important intertidal aquaculture species that can ingest organic matter from the surface sediment and shows a high transportation capacity in sediment. However, little known about influence of on microbial community exchange microbiota between intestine surrounding In this study, communities S. three kinds sediments were analyzed using high-throughput sequencing 16S rRNA gene amplicon, relationships different examined. Principal coordinate analysis ANOSIM/Adonis showed worm samples significantly those (p < 0.05). Meanwhile, compared with samples, ?-diversity was lower intestinal samples. Although relative abundances Proteobacteria Cyanobacteria all phyla (Bacteroidetes, Gemmatimonadetes, Latescibacteria) great difference four groups, as Moreover, several interactions found sediments. BugBase functional prediction indicated oxygen status changed by bioturbation worm. Therefore, microenvironment affected activity zone.