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Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

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Record number 548153
Title Reclassification of Eubacterium hallii as Anaerobutyricum hallii gen. nov., comb. nov., and description of Anaerobutyricum soehngenii sp. nov., a butyrate and propionate-producing bacterium from infant faeces
Author(s) Shetty, Sudarshan A.; Zuffa, Simone; Bui, Thi Phuong Nam; Aalvink, Steven; Smidt, Hauke; Vos, Willem M. De
Source International Journal of Systematic and Evolutionary Microbiology 68 (2018)12. - ISSN 1466-5026 - p. 3741 - 3746.
DOI https://doi.org/10.1099/ijsem.0.003041
Department(s) MolEco
WIMEK
Microbiology
VLAG
Publication type Refereed Article in a scientific journal
Publication year 2018
Keyword(s) Anaerobutyricum hallii comb. nov. - Eubacterium hallii - microbiome - microbiota
Abstract

A bacterial strain designated L2-7T, phylogenetically related to Eubacterium hallii DSM 3353T, was previously isolated from infant faeces. The complete genome of strain L2-7T contains eight copies of the 16S rRNA gene with only 98.0-98.5 % similarity to the 16S rRNA gene of the previously described type strain E. hallii. The next closest validly described species is Anaerostipes hadrus DSM 3319T (90.7 % 16S rRNA gene similarity). A polyphasic taxonomic approach showed strain L2-7T to be a novel species, related to type strain E. hallii DSM 3353T. The experimentally observed DNA-DNA hybridization value between strain L2-7T and E. hallii DSM 3353T was 26.25 %, close to that calculated from the genomes (34.3 %). The G+C content of the chromosomal DNA of strain L2-7T was 38.6 mol%. The major fatty acids were C16 : 0, C16 : 1cis9 and a component with summed feature 10 (C18 : 1c11/t9/t6c). Strain L2-7T had higher amounts of C16 : 0 (30.6 %) compared to E. hallii DSM 3353T (19.5 %) and its membrane contained phosphatidylglycerol and phosphatidylethanolamine, which were not detected in E. hallii DSM 3353T. Furthermore, 16S rRNA gene phylogenetic analysis advocates that E. hallii DSM 3353T is misclassified, and its reclassification as a member of the family Lachnospiraceae is necessary. Using a polyphasic approach, we propose that E. hallii (=DSM 3353T=ATCC 27751T) be reclassified as the type strain of a novel genus Anaerobutyricum sp. nov., comb. nov. and we propose that strain L2-7T should be classified as a novel species, Anaerobutyricum soehngenii sp. nov. The type strain is L2-7T (=DSM 17630T=KCTC 15707T).

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