Pontibacter humi sp. nov., Isolated from Mountain Soil
2014
Srinivasan, Sathiyaraj | Lee, Jae-Jin | Lee, Sang-Seob | Kim, Myung Kyum
A Gram-negative, aerobic, non-motile, rod-shaped bacterial strain, designated as SWU8ᵀ, was isolated from a mountain soil collected in Seoul Women’s University campus at South Korea. Phylogenic analysis, using 16S rRNA gene sequence of the new isolate, showed that strain SWU8ᵀ belongs to the genus Pontibacter. The highest sequence similarities were 96.2 % with Pontibacter saemangeumensis GCM0142ᵀ, 95.5 % with Pontibacter toksunensis ZLD-7ᵀ, 95.3 % with Pontibacter roseus DSM 17521ᵀ, and 95.1 % with Pontibacter odishensis JC130ᵀ. Chemotaxonomic data showed that the most abundant fatty acids were summed feature 4 (comprising iso-C₁₇:₁ I/anteiso-C₁₇:₁ B; 26.9 %), iso-C₁₅:₀ (25.6 %), and iso-C₁₇:₀ 3OH (10.6 %), and major polar lipid was phosphatidylethanolamine. The DNA G+C content of strain SWU8ᵀ was 48.5 mol%. Together, the phenotypic, phylogenetic, and chemotaxonomic data supported that strain SWU8ᵀ presents a novel species of the genus Pontibacter, for which the name Pontibacter humi sp. nov. is proposed. The type strain is SWU8ᵀ (=KEMC 9004-131ᵀ = JCM 19178ᵀ).
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