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Published on: January 12, 2024
Hymenobacter soli sp. nov., isolated from grass soil
Kyoung-Ho Kim1, Wan-Taek Im, Sung-Taik Lee
1Department of Biological Sciences, Korea Advanced Institute of Science and Technology, 373-1, Guseong-dong, Yuseong-gu, Daejeon 305-701, Republic of Korea.
Summary
A novel red-pink bacterium, Hymenobacter soli PB17T, was identified from Korean soil. This Gram-negative bacterium expands the known diversity within the Hymenobacter genus.
Area of Science:
- Microbiology
- Bacterial Taxonomy
- Phylogenetics
Background:
- The genus Hymenobacter comprises Gram-negative bacteria with diverse ecological roles.
- Accurate taxonomic classification is crucial for understanding microbial diversity and function.
Purpose of the Study:
- To taxonomically characterize a novel bacterium, strain PB17T, isolated from soil.
- To determine if strain PB17T represents a new species within the Hymenobacter genus.
Main Methods:
- Polyphasic taxonomic approach including 16S rRNA gene sequencing.
- Phylogenetic analysis to determine evolutionary relationships.
- Chemotaxonomic analysis of cellular fatty acids and DNA G+C content determination.
Main Results:
- Strain PB17T, a red-pink, rod-shaped bacterium, showed 90.1–91.8% 16S rRNA gene sequence similarity to known Hymenobacter species.
- Predominant fatty acids included iso-C15:0 and C16:1 omega 5c.
- DNA G+C content was 58.8 mol%, with distinct phylogenetic and phenotypic characteristics.
Conclusions:
- Strain PB17T is phylogenetically and phenotypically distinct from recognized Hymenobacter species.
- Hymenobacter soli sp. nov. is proposed as a novel species, with strain PB17T as the type strain.
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