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Updated: May 10, 2026
09:38
Physical Isolation of Endospores from Environmental Samples by Targeted Lysis of Vegetative Cells
Published on: January 21, 2016
Bacillus songklensis sp. nov., isolated from soil
Hyeonji Kang1, Veeraya Weerawongwiwat1, Jong-Hwa Kim1
1Department of Microbiology, Chung-Ang University College of Medicine, Seoul, Republic of Korea.
Summary
A new bacterial species, Bacillus songklensis, was identified from soil. This Gram-positive, spore-forming bacterium expands the known diversity within the Bacillus genus.
Area of Science:
- Microbiology
- Bacterial Taxonomy
- Genomics
Background:
- The genus Bacillus encompasses diverse, industrially relevant bacteria.
- Accurate taxonomic classification is crucial for understanding bacterial roles and potential applications.
Purpose of the Study:
- To taxonomically characterize a novel bacterial strain, CAU 1033(T), isolated from soil.
- To determine if strain CAU 1033(T) represents a new species within the genus Bacillus.
Main Methods:
- Polyphasic taxonomic approach including 16S rRNA gene sequencing.
- Analysis of chemotaxonomic markers: isoprenoid quinones, fatty acids, cell wall peptidoglycan, and polar lipids.
- Determination of DNA G+C content.
Main Results:
- Phylogenetic analysis placed strain CAU 1033(T) within the genus Bacillus, closely related to Bacillus drentensis.
- Chemotaxonomic data (MK-7, major fatty acids, peptidoglycan composition, polar lipids) supported its unique identity.
- The DNA G+C content was determined to be 41.4 mol%.
Conclusions:
- Strain CAU 1033(T) represents a novel species, Bacillus songklensis sp. nov.
- The proposed type strain is CAU 1033(T) (= KCTC 13881(T) = CCUG 61889(T)).
- This finding contributes to the ongoing characterization of bacterial biodiversity.
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