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Paenibacillus cathormii sp. nov., isolated from tree bark
Jaruwan Sitdhipol1, Jayoung Paek2, Yeseul Sin2
1Bioscience Department, Thailand Institute of Scientific and Technological Research (TISTR), Pathum Thani 12120, Thailand.
International Journal of Systematic and Evolutionary Microbiology
|December 18, 2015
Summary
A novel bacterium, Paenibacillus cathormii sp. nov., was identified from tree bark in Thailand. This Gram-positive, endospore-forming bacterium expands the known diversity within the Paenibacillus genus.
Area of Science:
- Microbiology
- Bacterial Taxonomy
- Environmental Microbiology
Background:
- The genus Paenibacillus comprises diverse, Gram-positive, endospore-forming bacteria with significant ecological and biotechnological roles.
- Accurate taxonomic classification is crucial for understanding bacterial diversity and function in various environments.
Purpose of the Study:
- To taxonomically characterize a novel bacterial isolate from tree bark in Thailand.
- To determine the phylogenetic placement and distinct species status of the novel isolate within the Paenibacillus genus.
Main Methods:
- Polyphasic taxonomic analysis including 16S rRNA gene sequencing.
- Cell-wall peptidoglycan analysis for meso-diaminopimelic acid presence.
- Polar lipid profiling, menaquinone analysis, and cellular fatty acid composition determination.
- DNA G+C content determination.
Main Results:
- Strain BK114-2T, isolated from Thai tree bark, is a Gram-positive, facultatively anaerobic, rod-shaped, endospore-forming bacterium.
- 16S rRNA gene sequence analysis showed affiliation with the Paenibacillus genus, with highest similarity to P. timonensis (96.7%).
- Chemotaxonomic data (meso-diaminopimelic acid, MK-7, dominant fatty acids) and DNA G+C content (52.0 mol%) supported its distinct species status.
Conclusions:
- Strain BK114-2T represents a novel species within the Paenibacillus genus.
- The proposed name for this new species is Paenibacillus cathormii sp. nov.
- The type strain is BK114-2T (KCTC 33251T = TISTR 2282T).
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