%0 Journal Article %A Eeckhaut, Venessa %A Van Immerseel, Filip %A Pasmans, Frank %A De Brandt, Evie %A Haesebrouck, Freddy %A Ducatelle, Richard %A Vandamme, Peter %T Anaerostipes butyraticus sp. nov., an anaerobic, butyrate-producing bacterium from Clostridium cluster XIVa isolated from broiler chicken caecal content, and emended description of the genus Anaerostipes %D 2010 %J International Journal of Systematic and Evolutionary Microbiology, %V 60 %N 5 %P 1108-1112 %@ 1466-5034 %R https://doi.org/10.1099/ijs.0.015289-0 %I Microbiology Society, %X Four butyrate-producing isolates were obtained from the caecal content of a 4-week-old broiler chicken. The 16S rRNA gene sequences were determined and confirmed the close relatedness of the four isolates, which suggested that they were derived from a single bacterial clone. Phylogenetic analysis based on 16S rRNA gene sequences showed that its closest relatives were members of cluster XIVa of the Clostridium subphylum of Gram-positive bacteria and that the closest related type strain was Anaerostipes caccae L1-92T (94.5 % similarity). Similarity levels of 96–98 % with sequences from uncultured bacteria from human stool samples were observed. On the basis of morphological, biochemical and phylogenetic characteristics, this strain is assigned to a novel species in the genus Anaerostipes, for which the name Anaerostipes butyraticus sp. nov. is proposed. The type strain is 35-7T (=LMG 24724T =DSM 22094T). An emended description of the genus Anaerostipes is also provided. %U https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijs.0.015289-0