Bifidobacterium faecale sp nov., isolated from human faeces
- Authors
- Choi, Jung-Hye; Lee, Kyung Min; Lee, Myung-Ki; Cha, Chang-Jun; Kim, Geun-Bae
- Issue Date
- Sep-2014
- Publisher
- SOC GENERAL MICROBIOLOGY
- Citation
- INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, v.64, pp 3134 - 3139
- Pages
- 6
- Journal Title
- INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
- Volume
- 64
- Start Page
- 3134
- End Page
- 3139
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/11906
- DOI
- 10.1099/ijs.0.063479-0
- ISSN
- 1466-5026
1466-5034
- Abstract
- A novel strain, designated strain CU3-7(T), was isolated from faeces of a two-week-old baby. The isolate was Gram-staining-positive, anaerobic and rod-shaped. Results from 16S rRNA gene sequence analysis revealed that strain CU3-7(T) was phylogenetically affiliated with members of the genus Bifidobacterium. Strain CU3-7(T) showed the highest level of sequence similarity with Bifidobacterium adolescentis KCTC 3216(T) (98.4 %), followed by Bifidobacterium ruminantium KCTC 3425(T) (97.9%). Analysis of hsp60 sequences showed that strain CU3-7(T) was closely related to B. adolescentis KCTC 3216(T) (94.0%) and B. ruminantium KCTC 3425(T) (92.5 %). The DNA-DNA hybridization values with the closely related strains were all below the cut-off value for species delineation, 17.0% with B. ruminantium KCTC 3425(T) and 14.9% with B. adolescentis KCTC 3216(T). Fructose-6-phosphate phosphoketolase activity was detected. The predominant cellular fatty acids were C-16:0 (27.7%), C-18:1 omega 9c (27.4%) and C-18:1 omega 9c dimethylacetate (15.5%). The DNA G+C content was 58.6 mol%. On the basis of polyphasic taxonomy, strain CU3-7(T) should be classified as the type strain of a novel species within the genus Bifidobacterium, for which the name Bifidobacterium faecale sp. nov. is proposed (=KACC 17904(T)=JCM 19861(T)).
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