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Flavitalea soli sp. nov. isolated from soil
Soo-Jin Kim1, Jae-Hyung Ahn1, Hang-Yeon Weon1
1Agricultural Microbiology Division, National Institute of Agricultural Science,Rural Development Administration, Wanju-gun, Jeollabuk-do, 55365, Republic ofKorea.
International Journal of Systematic and Evolutionary Microbiology
|November 12, 2015
Summary
A novel yellow-pigmented bacterium, *Flavitalea soli* sp. nov. KIS20-3T, was discovered in Korean soil. This aerobic, Gram-negative rod expands the known diversity within the *Flavitalea* genus.
Area of Science:
- Microbiology
- Bacteriology
- Taxonomy
Background:
- The family *Chitinophagaceae* comprises diverse bacterial genera, including *Flavitalea*, *Niastella*, *Segetibacter*, and *Parasegetibacter*.
- Soil environments harbor a vast array of microbial life, with ongoing discovery of novel bacterial species contributing to our understanding of microbial ecosystems.
Purpose of the Study:
- To isolate and characterize a novel bacterium from a soil sample collected in the Republic of Korea.
- To determine the taxonomic position of the novel isolate using polyphasic characterization, including phylogenetic analysis and chemotaxonomic data.
Main Methods:
- Isolation and cultivation of strain KIS20-3T from a soil sample.
- Morphological, physiological, and biochemical characterization.
- 16S rRNA gene sequence analysis for phylogenetic placement.
- Determination of major fatty acids, isoprenoid quinones, polar lipids, and DNA G+C content.
Main Results:
- Strain KIS20-3T is a Gram-negative, rod-shaped, non-flagellated, mesophilic, yellow-pigmented, aerobic bacterium.
- 16S rRNA gene sequence analysis indicated highest similarity to *Flavitalea populi* HY-50RT (94.5%). Phylogenetic analysis placed the strain within the genus *Flavitalea*.
- Chemotaxonomic data, including major fatty acids (iso-C15:0, iso-C17:0 3-OH, iso-C15:1 G), menaquinone 7, and DNA G+C content (55.7 mol%), supported its distinct taxonomic status.
Conclusions:
- Strain KIS20-3T represents a novel species within the genus *Flavitalea*.
- The proposed name for this new species is *Flavitalea soli* sp. nov.
- The type strain is KIS20-3T (= KACC 17319T = JCM 19937T).
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