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Abstract
A taxonomic study was performed on strain GCJ02T, which was isolated from forest soil from Baishan City, PR China. The bacterium was Gram-stain-positive, catalase-positive and weakly oxidase-positive, rod-shaped and non-motile. Growth was observed at salinities of 0–6.0 % and at temperatures of 4–26 °C. Phylogenetic analysis based on 16S rRNA gene sequences indicated that GCJ02T represented a member of the genus Cryobacterium , with the highest sequence similarity to Cryobacterium arcticum SK1T (99.5 %) and Cryobacterium zongtaii TMN-42T (99.5 %), followed by Cryobacterium psychrotolerans CGMCC 1.5382T (97.7 %), and other species of the genus Cryobacterium (96.4–96.9 %). The ANI and the DNA–DNA hybridization estimate values between GCJ02T and all type strains of species of the genus Cryobacterium were 72.5–84.5 % and 19.6–28.7 %, respectively. The principal fatty acids (>10 %) of GCJ02T were anteiso-C15 : 0(53.0 %) and anteiso-C17 : 0 (18.8 %). The G+C content of the chromosomal DNA was 68.4 mol%. The respiratory quinone was determined to be MK-10. Phosphatidylglycerol, diphosphatidylglycerol, glycolipid, and one unidentified phospholipid and three unidentified polar lipid were present. The combined genotypic and phenotypic data indicated that strain GCJ02T represents a novel species within the genus Cryobacterium , for which the name Cryobacterium soli sp. nov. is proposed, with the type strain GCJ02T (=MCCC 1K03549T=JCM 32391T).
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Funding
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The Foundation of Hubei Provincial Department of Education
(Award B2018040)
- Principle Award Recipient: Chunjie Gong