Analysis of bacterial communities and exploration of coral pathogenic bacteria in the soft corals from Chuuk, Micronesia

Title
Analysis of bacterial communities and exploration of coral pathogenic bacteria in the soft corals from Chuuk, Micronesia
Author(s)
강민경; 김강은; 이택견
KIOST Author(s)
Kim, Kangeun(김강은)Lee, Taek Kyun(이택견)
Publication Year
2019-11-07
Abstract
Coral-associated microbes play an essential role in maintaining viable coral reefs, which are a crucial niche in marine ecosystems, providing shelter for many marine organisms. In the present study, we employed 16S rRNA next generation sequencing to characterize bacterial community composition of seawater and 2 different corals, Nephthea sp. and Sinularia sp., of Weno, an island in the Federated States of Micronesia (FSM), South Pacific. Bacterial community composition was found to be diverse and species-specific at both the phylum and class level. For both coral species, the majority of bacterial colonization was confined to a single phylum. For Nephthea sp., Proteobacteria (62.33%) was the most abundant phylum, while for Sinularia sp., Spirochaetes (63.22%) was the most predominate. At the class level, Gammaproteobacteria (32.06%) and Alphaproteobacteria (26.63%) were found to predominate in Nephthea sp., while Spirochaetia (63.22%) and Gammaproteobacteria (13.01%) were most common in Sinularia sp. The coral pathogenic bacteria were identified 37 species. Among them, Vibrio campbellii was most abundant in seawater. Vibrio owensii was identified in every sample. In particular, unweighted pair group method with arithmetic mean (UPGMA) phylogenetic analysis showed diverse and species-specific differences in the microbiomes of Nephthea sp., Sinularia sp., and the surrounding seawater. This study represented the first c
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/21096
Bibliographic Citation
한국해양바이오학회 정기총회 및 학술발표회, pp.158 - 159, 2019
Publisher
한국해양바이오학회
Type
Conference
Language
English
Publisher
한국해양바이오학회
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