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KMID : 0364820230590030184
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Korean Journal of Microbiology
2023 Volume.59 No. 3 p.184 ~ p.191
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Isolation and characterization of seven bacterial strains in Jeju Island
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Kim Min-Ji
Lee Ki-Eun
Cha In-Tae
Park Soo-Je
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Abstract
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Microorganisms have diverse metabolisms or characteristics that allow them to adapt and survive in various environments. They are also considered critical players that contribute to biogeochemical cycles and recycling organic matter degradation in their habitats. In this study, we isolated 50 bacterial strains from marine and non-marine environments in Jeju Island. Finally, seven strains were selected based on the sequence similarity of the 16S ribosomal RNA gene and identified as undiscovered isolated strain (> 98.7%) in South Korea. Using phylogenetic analyses, the strains were classified into five genera from three phyla. We observed that the isolates have various metabolic characteristics, including denitrifying or degradation of polymers. In addition, some strains could be grown under acidic (pH 4.5) or saline (NaCl 10%, w/v) culture conditions. This present investigation into the characterization of the isolated strains may provide basal information on microorganisms.
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KEYWORD
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16S rRNA gene, Jeju, sediment, undiscovered bacterial strain, wastewater
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