Ornithinimicrobium pekingense sp. nov., isolated from activated sludge
Liu, Xing-Yu and Wang, Bao-Jun and Jiang, Cheng-Ying and Liu, Shuang-Jiang,, 58, 116-119 (2008),
doi = https://doi.org/10.1099/ijs.0.65229-0,
publicationName = Microbiology Society,
issn = 1466-5026,
abstract= The bacterial strain LW6T was isolated from activated sludge of a wastewater treatment bioreactor. Cells of strain LW6T are Gram-positive, irregular, short rods and cocci, 0.5–0.8×1.0–1.6 μm. Colonies are light-yellow, smooth, circular and 0.2–1.0 mm in diameter after 3 days incubation. Strain LW6T is aerobic and heterotrophic. It grows at a temperature range of 26–38 °C and pH range of 6–9, with optimal growth at 33–37 °C and pH 7.8–8.2. The predominant cellular fatty acids of strain LW6T are iso-C15 : 0 (38.9 %) and iso-C17 : 1 ω9c (18.8 %). Strain LW6T has the major respiratory menaquinones MK-8(H4) and MK-8(H2) and polar lipids phosphatidylinositol, phosphatidylglycerol, diphosphatidylglycerol and unknown glycolipid/phospholipids. The cell wall peptidoglycan of strain LW6T contained the amino acids ornithine, lysine, glutamic acid, alanine, glycine and aspartic acid. Its molar DNA G+C content is 69 mol% (T m). Analysis of 16S rRNA gene sequences indicated that strain LW6T was related phylogenetically to members of the genus Ornithinimicrobium, with similarities ranging from 98.3 to 98.7 %. The DNA–DNA relatedness of strain LW6T to Ornithinimicrobium humiphilum DSM 12362T and Ornithinimicrobium kibberense K22-20T was respectively 31.5 and 15.2 %. Based on these results, it is concluded that strain LW6T represents a novel species of the genus Ornithinimicrobium, for which the name Ornithinimicrobium pekingense sp. nov. is proposed. The type strain is strain LW6T (=CGMCC 1.5362T =JCM 14001T).,
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