title: Microbial Community Composition in the Marine Sediments of Jeju Island: Next-Generation Sequencing Surveys.
abstract: Marine sediments are a microbial biosphere with an unknown physiology, and the sediments harbor numerous distinct phylogenetic lineages of Bacteria and Archaea that are at present uncultured. In this study, the structure of the archaeal and bacterial communities was investigated in the surface and subsurface sediments of Jeju Island using a next-generation sequencing method. The microbial communities in the surface sediments were distinct from those in the subsurface sediments; the relative abundance of sequences for Thaumarchaeota, Actinobacteria, Bacteroides, Alphaproteobacteria, and Gammaproteobacteria were higher in the surface than subsurface sediments, whereas the sequences for Euryarchaeota, Acidobacteria, Firmicutes, and Deltaproteobacteria were relatively more abundant in the subsurface than surface sediments. This study presents detailed characterization of the spatial distribution of benthic microbial communities of Jeju Island and provides fundamental information on the potential interactions mediated by microorganisms with the different biogeochemical cycles in coastal sediments.
authors: Department of Architectural Engineering, Jeju National University, Jeju 63243, Republic of Korea.
authors: Heebok
authors: H
authors: Choi
authors: Department of Biology, Jeju National University, Jeju 63243, Republic of Korea.
authors: Hyeon-Woo
authors: HW
authors: Koh
authors: R&D Division, VITABIO, Inc., Daejeon 34540, Republic of Korea.
authors: Hongik
authors: H
authors: Kim
authors: Department of Biotechnology, Chonbuk National University, Iksan 54896, Republic of Korea.
authors: Jong-Chan
authors: JC
authors: Chae
authors: Department of Biology, Jeju National University, Jeju 63243, Republic of Korea.
authors: Soo-Je
authors: SJ
authors: Park
mesh_terms: D001105:Archaea / Q000145:classification* / Q000235:genetics; D001419:Bacteria / Q000145:classification* / Q000235:genetics; D044822:Biodiversity; D058448:Biota; D019641:DNA, Archaeal / Q000235:genetics; D004269:DNA, Bacterial / Q000235:genetics; D019015:Geologic Sediments / Q000382:microbiology*; D059014:High-Throughput Nucleotide Sequencing / Q000379:methods; D062312:Islands; D010802:Phylogeny; D058974:Phylogeography; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D056910:Republic of Korea; D012623:Seawater; D017422:Sequence Analysis, DNA
chemical_list: D019641:DNA, Archaeal; D004269:DNA, Bacterial; D012336:RNA, Ribosomal, 16S
keywords: 16S rRNA gene; Archaea; Bacteria; Jeju Island; marine sediment