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06:06
Sediment Core Extrusion Method at Millimeter Resolution Using a Calibrated, Threaded-rod
Published on: August 17, 2016
Devosia submarina sp. nov., isolated from deep-sea surface sediments.
Lyudmila A Romanenko1, Naoto Tanaka2, Vassilii I Svetashev3
1G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, Prospect 100 Let Vladivostoku, 159, Vladivostok 690022, Russia.
International Journal of Systematic and Evolutionary Microbiology
|February 19, 2013
Summary
Two novel aerobic bacteria, Devosia submarina sp. nov., were identified from the Sea of Japan. These orange-red pigmented, motile rods represent a new species within the Devosia genus.
Area of Science:
- Microbiology
- Bacteriology
- Taxonomy
Background:
- Deep-sea sediments harbor diverse microbial communities.
- The genus Devosia comprises Gram-negative bacteria with various metabolic capabilities.
- Accurate bacterial taxonomy is crucial for understanding microbial ecology and evolution.
Purpose of the Study:
- To taxonomically characterize two novel bacterial isolates from the Sea of Japan.
- To determine the phylogenetic placement and species status of the novel strains.
- To propose a new species name for the identified bacteria.
Main Methods:
- Isolation and cultivation of aerobic, Gram-stain-negative, rod-shaped bacteria.
- 16S rRNA gene sequence analysis for phylogenetic studies.
- Fatty acid profiling, isoprenoid quinone analysis, and polar lipid determination.
- DNA-DNA hybridization for assessing genetic relatedness.
Main Results:
- Two strains, KMM 9415(T) and KMM 9416, were identified as belonging to the genus Devosia.
- Phylogenetic analysis showed high similarity to Devosia psychrophila and Devosia glacialis.
- DNA-DNA hybridization values confirmed the strains represent a novel species.
- Distinct phenotypic characteristics differentiated the novel strains from known species.
Conclusions:
- The novel strains KMM 9415(T) and KMM 9416 constitute a new species, Devosia submarina sp. nov.
- Devosia submarina adds to the known biodiversity of marine bacteria.
- This finding contributes to the taxonomic understanding of the genus Devosia.
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