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Microbacterium gilvum sp. nov., isolated from civet faeces.
Xiu Chen1, Qin-Yuan Li2, Gui-Ding Li2
1Institute of Microbial Pharmaceuticals, College of Life and Health Sciences, Northeastern University, Shenyang, 110819, People's Republic of China.
Antonie Van Leeuwenhoek
|June 5, 2016
Summary
A novel actinobacterium, Microbacterium gilvum sp. nov., was discovered in civet feces. This new bacterial species is distinct from closely related Microbacterium species based on genetic and physiological analyses.
Area of Science:
- Microbiology
- Bacteriology
- Taxonomy
Background:
- Actinobacteria are a diverse phylum of Gram-positive bacteria.
- The genus Microbacterium comprises various species with distinct ecological niches.
- Accurate bacterial classification is crucial for understanding microbial diversity and function.
Purpose of the Study:
- To characterize and classify a novel actinobacterium isolated from civet feces.
- To determine the phylogenetic and taxonomic position of the novel isolate within the genus Microbacterium.
- To propose a new species designation for the novel bacterial strain.
Main Methods:
- Isolation and cultivation of bacteria from civet feces.
- 16S rRNA gene sequencing for phylogenetic analysis.
- DNA-DNA hybridization for genetic relatedness assessment.
- Physiological, biochemical, and chemotaxonomic characterization.
Main Results:
- A novel aerobic, non-motile, Gram-positive, rod-shaped actinobacterium, strain YIM 100951(T), was isolated.
- Phylogenetic analysis based on 16S rRNA genes showed high similarity to several Microbacterium species.
- DNA-DNA hybridization with Microbacterium barkeri DSM 20145(T) yielded a low value (23.2 ± 4.5%).
- Distinct physiological and biochemical characteristics differentiated strain YIM 100951(T) from related species.
Conclusions:
- Strain YIM 100951(T) represents a novel species within the genus Microbacterium.
- The proposed name for the novel species is Microbacterium gilvum sp. nov.
- The type strain is YIM 100951(T) (=DSM 26235(T) = CCTCC AB 2012971(T)).
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