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標題: Sphingobacterium cibi sp. nov., isolated from the food-waste compost and emended descriptions of Sphingobacterium spiritivorum (Holmes et al. 1982) Yabuuchi et al. 1983 and Sphingobacteriumthermophilum Yabe et al. 2013
作者: Lai, Wei-An
Hameed, Asif
Liu, You-Cheng
Hsu, Yi-Han
Lin, Shih-Yao
Young, Chiu-Chung
關鍵字: Bacterial Typing Techniques
Base Composition
DNA, Bacterial
Fatty Acids
RNA, Ribosomal, 16S
Sequence Analysis, DNA
Vitamin K 2
Soil Microbiology
摘要: A novel, pale yellow-coloured, Gram-staining-negative, aerobic, rod-shaped and non-motile bacterium, designated as strain CC-YY411T, was isolated from the food-waste compost and subjected to polyphasic taxonomy. Strain CC-YY411T exhibited the highest pairwise 16S rRNA gene sequence similarity to Sphingobacterium thermophilum JCM 17858T (94.6 %) while sharing 94.1 to 89.7 % similarities with other Sphingobacterium species. Novel strain established a discrete phylogenetic lineage within the clade that accommodated validly established members of the genus Sphingobacterium. The polar lipid profile of strain CC-YY411T contained major amounts of phosphatidylethanolamine, one unidentified lipid and two unidentified aminolipids besides accommodating trace amounts of a sphingolipid, two phospholipids, an unidentified aminophospholipid and an unidentified glycolipid. The DNA G+C content of strain CC-YY411T was 34.5 mol%. The major and minor respiratory quinones were MK-7 (89.1 %) and MK-6 (10.9 %), respectively. The predominant fatty acids were iso-C15 : 0 (24.0 %), iso-C17 : 0 3-OH (11.9 %), iso-C15 : 0 3-OH (6.9 %), C15 : 1ω5c (5.5 %) and summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c) (32.0 %). Based on the phylogenetic, phenotypic and chemotaxonomic distinctiveness, strain CC-YY411T represents a novel species of Sphingobacterium, for which the name Sphingobacteriumcibi sp. nov. is proposed. The type strain is CC-YY411T (=BCRC 80430T=JCM 18407T). Amended species descriptions of Sphingobacterium spiritivorum(Holmes et al. 1982) Yabuuchi et al. 1983 and Sphingobacterium thermophilum Yabe et al. 2013 are also proposed based on new data obtained in this study.
Appears in Collections:土壤環境科學系



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