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Updated: Jun 29, 2026
07:47
Experimental Human Pneumococcal Carriage
Published on: February 15, 2013
Phycicoccus aerophilus sp. nov., isolated from air
Hang-Yeon Weon1, Seung-Hee Yoo, Byung-Yong Kim
1Applied Microbiology Division, National Institute of Agricultural Science and Technology, Rural Development Administration, Suwon 441-707, Republic of Korea.
International Journal of Systematic and Evolutionary Microbiology
|October 10, 2008
Summary
A novel bacterium, Phycicoccus aerophilus sp. nov., was identified from an air sample. This Gram-positive bacterium expands the known diversity within the Phycicoccus genus.
Area of Science:
- Microbiology
- Bacterial Taxonomy
- Environmental Microbiology
Background:
- The family Intrasporangiaceae comprises bacteria with diverse metabolic capabilities.
- Accurate bacterial classification is crucial for understanding microbial ecosystems and their functions.
Purpose of the Study:
- To characterize and classify a novel bacterium isolated from an air sample.
- To determine the phylogenetic and taxonomic position of the new isolate within the genus Phycicoccus.
Main Methods:
- 16S rRNA gene sequence analysis for phylogenetic placement.
- DNA-DNA hybridization to assess genomic relatedness.
- Analysis of chemotaxonomic markers, including isoprenoid quinones, polar lipids, and whole-cell sugars.
- Fatty acid profiling for compositional analysis.
- G+C content determination.
Main Results:
- Strain 5516T-20(T) showed highest 16S rRNA gene sequence similarities to Phycicoccus dokdonensis (97.5%) and Phycicoccus jejuensis (96.1%).
- DNA-DNA hybridization value between strain 5516T-20(T) and P. dokdonensis DS-8(T) was 41%, indicating distinct species status.
- Chemotaxonomic data (menaquinone MK-8(H4), specific polar lipids, whole-cell sugars, and major fatty acids) were consistent with the genus Phycicoccus.
- The G+C content of the DNA was 70.5 mol%.
Conclusions:
- Strain 5516T-20(T) represents a novel species within the genus Phycicoccus.
- The proposed name for this new species is Phycicoccus aerophilus sp. nov.
- This finding contributes to the taxonomic understanding of airborne bacteria and the genus Phycicoccus.
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