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Diversity of microbial community and its metabolic potential for nitrogen and sulfur cycling in sediments of Phu Quoc island, Gulf of Thailand
- Source :
- Braz J Microbiol
- Publication Year :
- 2020
-
Abstract
- Although Phu Quoc island, Gulf of Thailand possesses diverse marine and coastal ecosystems, biodiversity and metabolic capability of microbial communities remain poorly investigated. The aim of our study was to evaluate the biodiversity and metabolic potential of sediment microbial communities in Phu Quoc island. The marine sediments were collected from three different areas and analyzed by using 16S rRNA gene-based amplicon approach. A total of 1,143,939 reads were clustered at a 97% sequence similarity into 8,331 unique operational taxonomic units, representing 52 phyla. Bacteria and archaea occupied averagely around 86% and 14%, respectively, of the total prokaryotic community. Proteobacteria, Planctomycetes, Chloroflexi, and Thaumarchaeota were the dominant phyla in all sediments, which were involved in nitrogen and sulfur metabolism. Sediments harboring of higher nitrogen sources were found to coincide with increased abundance of archaeal phylum Thaumarchaeota. Predictive functional analysis showed high abundance prokaryotic genes associated with nitrogen cycling including nifA-Z, amoABC, nirA, narBIJ, napA, nxrAB, nrfA-K, nirBD, nirS, nirK, norB-Z, nlnA, ald, and ureA-J, based on taxonomic groups detected by 16S rRNA sequencing. Although the key genes involved in sulfur cycling were found to be at low to undetectable levels, the other genes encoding for sulfur-related biological processes were present, suggesting that alternative pathways may be involved in sulfur cycling at our study site. In conclusion, our study for the first time shed light on diversity of microbial communities in Phu Quoc island. SUPPLEMENTARY INFORMATION: The online version contains supplementary material available at 10.1007/s42770-021-00481-8.
- Subjects :
- Geologic Sediments
Thaumarchaeota
Nitrogen
Microbiology
03 medical and health sciences
Microbial ecology
RNA, Ribosomal, 16S
Media Technology
Nitrogen cycle
Environmental Microbiology - Research Paper
030304 developmental biology
0303 health sciences
biology
Bacteria
030306 microbiology
Ecology
Phylum
Microbiota
Planctomycetes
Biodiversity
biology.organism_classification
Thailand
Archaea
Microbial population biology
Proteobacteria
Sulfur
Subjects
Details
- ISSN :
- 16784405
- Volume :
- 52
- Issue :
- 3
- Database :
- OpenAIRE
- Journal :
- Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology]
- Accession number :
- edsair.doi.dedup.....14fa6ab12bc0c35fb00adbf0dc7a1f1f