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Isolation and Identification of Waterborne Antibiotic-Resistant Bacteria and Molecular Characterization of their Antibiotic Resistance Genes
Published on: March 3, 2023
Erythrobacter marinus sp. nov., isolated from seawater
Yong-Taek Jung1,2, Sooyeon Park2, Tae-Kwang Oh2
1University of Science and Technology (UST), 113 Gwahangno, Yuseong, Daejeon 305-350, Republic of Korea.
International Journal of Systematic and Evolutionary Microbiology
|October 25, 2011
Summary
A novel bacterium, Erythrobacter marinus sp. nov. strain HWDM-33(T), was discovered in Yellow Sea seawater. This Gram-negative bacterium represents a new species within the Erythrobacter genus, expanding microbial diversity knowledge.
Area of Science:
- Microbiology
- Bacteriology
- Taxonomy
Background:
- The genus Erythrobacter comprises marine bacteria with diverse metabolic capabilities.
- Accurate taxonomic classification is crucial for understanding microbial ecology and evolution.
Purpose of the Study:
- To taxonomically characterize a novel bacterium isolated from the Yellow Sea.
- To determine the phylogenetic and phenotypic distinctiveness of the isolate within the Erythrobacter genus.
Main Methods:
- Polyphasic taxonomic study including 16S rRNA gene sequencing.
- Phylogenetic analyses (Neighbor-joining, Maximum-likelihood, Maximum-parsimony).
- Analysis of chemotaxonomic markers (fatty acids, ubiquinones, polar lipids) and DNA G+C content.
Main Results:
- Strain HWDM-33(T) is a Gram-negative, non-motile bacterium with optimal growth at pH 7-8, 25°C, and 2-3% NaCl.
- Phylogenetic analysis based on 16S rRNA gene sequences showed 96.9% similarity to Erythrobacter gangjinensis K7-2(T).
- Chemotaxonomic data and phenotypic properties distinguished strain HWDM-33(T) from other Erythrobacter species, with a DNA G+C content of 66.1 mol%.
Conclusions:
- Strain HWDM-33(T) represents a novel species of the genus Erythrobacter.
- The proposed name for this new species is Erythrobacter marinus sp. nov.
- The type strain is HWDM-33(T) (= KCTC 23554(T) = CCUG 60528(T)).
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