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Flavobacterium resistens sp. nov., isolated from stream sediment
Seung Hyun Ryu1, Jin Ho Park, Jeong Chan Moon
1Division of Applied Life Science (BK21 program), EB-NCRC, Gyeongsang National University, Jinju 660-701, Republic of Korea.
International Journal of Systematic and Evolutionary Microbiology
|October 10, 2008
Summary
A novel yellow-pigmented bacterium, Flavobacterium resistens, was discovered in South Korean stream sediment. This Gram-negative bacterium exhibits gliding motility and represents a new species within the Flavobacterium genus.
Area of Science:
- Microbiology
- Bacteriology
- Environmental Science
Background:
- The genus Flavobacterium comprises diverse Gram-negative bacteria found in various environments.
- Accurate taxonomic classification is crucial for understanding microbial diversity and ecological roles.
Purpose of the Study:
- To characterize and classify a novel bacterial isolate from a South Korean stream sediment.
- To determine the phylogenetic and genotypic relationship of the isolate to known Flavobacterium species.
Main Methods:
- Isolation and cultivation of aerobic, yellow-pigmented bacteria.
- Phenotypic characterization including growth conditions, cell morphology, motility, and biochemical tests.
- Genotypic analysis including G+C content determination, 16S rRNA gene sequencing, and DNA-DNA hybridization.
Main Results:
- Strain BD-b365(T) is an aerobic, yellow-pigmented, Gram-negative bacterium with gliding motility.
- Phylogenetic analysis based on 16S rRNA gene sequences places the strain within the genus Flavobacterium.
- Low DNA-DNA relatedness (9.6%) with the closest related species, Flavobacterium aquidurense, confirms its novelty.
Conclusions:
- Strain BD-b365(T) represents a novel species of the genus Flavobacterium.
- The proposed name for this new species is Flavobacterium resistens sp. nov.
- The type strain is BD-b365(T) (=KCTC 22078(T) =DSM 19382(T)).
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