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Characterization of tissue-associated bacterial community of two Bathymodiolus species from the adjacent cold seep and hydrothermal vent environments
- Source :
- The Science of the total environment. 796
- Publication Year :
- 2021
-
Abstract
- Deep-sea mussels are widely distributed in marine chemosynthetic ecosystems. Bathymodiolus platifrons and B. japonicus, occurring at both cold seeps and hydrothermal vents, have been reported to house exclusively methanotrophic symbionts in the gill. However, the comparison of microbiota associated with different tissues between these two species from two contrasting habitats is still limited. In this study, using B. platifrons and B. japonicus collected from the adjacent cold seep and hydrothermal vent environments, we sampled different tissues (gill, adductor muscle, mantle, foot, and visceral mass including the gut) to decipher the microbial community structure at the tissue scale by employing 16S rRNA gene sequencing strategy. In the gill of both seep mussels and vent mussels, the symbiont gammaproteobacterial Methylomonaceae was the predominant lineage, and methane oxidation was identified as one of the most abundant putative function. In comparison, abundant families in other tissues were Pseudomonadaceae and Enterobacteriaceae in seep mussels and vent mussels, respectively, which may get involved in element cycling. The results revealed high similarity of community structure between two mussel species from the same habitat. The gill showed distinctive bacterial community structure compared with other tissues within the same environment, while the gill communities from two environments were more similar. Remarkably structural variations of adductor muscle, mantle, foot, and visceral mass were observed between two environments. This study can extend the understanding on the characteristics of tissue-associated microbiota of deep-sea mussels from the adjacent cold seep and hydrothermal vent environments.
- Subjects :
- animal structures
Environmental Engineering
Bathymodiolus platifrons
Bathymodiolus
Zoology
Hydrothermal Vents
RNA, Ribosomal, 16S
Environmental Chemistry
Animals
Humans
Waste Management and Disposal
Chemosynthesis
biology
Bacteria
Microbiota
fungi
Mussel
equipment and supplies
biology.organism_classification
Pollution
Cold seep
Petroleum seep
Habitat
bacteria
Mytilidae
Hydrothermal vent
Subjects
Details
- ISSN :
- 18791026
- Volume :
- 796
- Database :
- OpenAIRE
- Journal :
- The Science of the total environment
- Accession number :
- edsair.doi.dedup.....29f6a44ee1ce527ab185ad55108a9c3a