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Puniceibacterium sediminis sp. nov., from intertidal sediment
De-Chao Zhang1, Kathrin Neuner2, Jiang Wu3
1Institute of Oceanology, Chinese Academy of Sciences, 266071 Qingdao, PR China.
International Journal of Systematic and Evolutionary Microbiology
|February 18, 2015
Summary
A novel bacterial species, Puniceibacterium sediminis RU-1-R-18(T), was discovered in Russian intertidal sediment. This Gram-negative bacterium expands the diversity within the Puniceibacterium genus.
Area of Science:
- Microbiology
- Bacteriology
- Phylogenetics
Background:
- Intertidal sediments are diverse microbial habitats.
- The genus Puniceibacterium comprises bacteria with limited characterization.
- Strain RU-1-R-18(T) was isolated from Sakhalin Island, Russia.
Purpose of the Study:
- To characterize and classify a novel bacterial isolate.
- To determine the phylogenetic placement of strain RU-1-R-18(T).
- To propose a new species within the Puniceibacterium genus.
Main Methods:
- 16S rRNA gene sequencing for phylogenetic analysis.
- Fatty acid profiling and polar lipid analysis.
- Genomic DNA G+C content determination.
- Phenotypic characterization and DNA-DNA relatedness studies.
Main Results:
- Strain RU-1-R-18(T) showed 97.9% 16S rRNA gene sequence similarity to Puniceibacterium antarcticum.
- Predominant fatty acid was C(18:1)ω7c; polar lipids included diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, and phosphatidylcholine.
- Genomic DNA G+C content was 59.1 mol%.
Conclusions:
- Strain RU-1-R-18(T) represents a distinct species within the Puniceibacterium genus.
- The novel species is named Puniceibacterium sediminis sp. nov.
- The type strain is RU-1-R-18(T) (=LMG 28384(T) = DSM 29052(T)).
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