1887

Abstract

A novel aerobic, Gram-stain-positive, sporogenous, rod-shaped bacterial strain, 7578-1, was isolated from ripened Pu’er tea. Based on 16S rRNA gene sequence similarity comparisons, strain 7578-1 was grouped into the genus Bacillus and appeared to be closely related to the type strains Bacillus shackletonii LMG 18435 (98.4 %), Bacillus acidicola DSM 14745 (97.6 %), Bacillus paralicheniformis KACC 18426 (97.2 %) and Bacillus ginsengihumi KCTC 13944 (96.7 %). The fatty acid profile containing the major fatty acids, iso-C15 : 0, anteiso-C15 : 0 and anteiso-C17 : 0 supported the allocation of strain 7578-1 to the genus Bacillus . The strain had a cell-wall type A1γ peptidoglycan with meso-diaminopimelic acid as the diagnostic diamino acid. The major menaquinone was MK-7 (95 %). The predominant polar lipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylmethylethanolamine, phosphatidylethanolamine, one unidentified phospholipid and one unidentified lipid. The average nucleotide identity values between strain 7578-1 and its most closely related species were 67.8–82.4 % by OrthoANIu analysis. The DNA–DNA relatedness value between strain 7578-1 and the type strains of closely related species were 17–39 %, again indicating that strain 7578-1 represented a novel species in the genus Bacillus . The DNA G+C content of strain 7578-1 was 36.0 mol%. On the basis of the presented polyphasic evidence, strain 7578-1 is considered to represent a novel species of the genus Bacillus , for which we propose the name Bacillus camelliae sp. nov. The type strain is 7578-1 (=CGMCC 1.15374=KCTC 33845).

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2018-01-04
2019-10-15
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