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Enterorhabdus Caecimuris Sp. Nov., a Member of the Family Coriobacteriaceae Isolated from a Mouse Model of Spontaneous Colitis, and Emended Description of the Genus Enterorhabdus Clavel Et Al. 2009

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Specialty Microbiology
Date 2009 Aug 18
PMID 19684311
Citations 27
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Abstract

The C3H/HeJBir mouse model of intestinal inflammation was used for isolation of a Gram-positive, rod-shaped, non-spore-forming bacterium (B7(T)) from caecal suspensions. On the basis of partial 16S rRNA gene sequence analysis, strain B7(T) was a member of the class Actinobacteria, family Coriobacteriaceae, and was related closely to Enterorhabdus mucosicola Mt1B8(T) (97.6 %). The major fatty acid of strain B7(T) was C(16 : 0) (19.1 %) and the respiratory quinones were mono- and dimethylated. Cells were aerotolerant, but grew only under anoxic conditions. Strain B7(T) did not convert the isoflavone daidzein and was resistant to cefotaxime. The results of DNA-DNA hybridization experiments and additional physiological and biochemical tests allowed the genotypic and phenotypic differentiation of strain B7(T) from the type strain of E. mucosicola. Therefore, strain B7(T) represents a novel species, for which the name Enterorhabdus caecimuris sp. nov. is proposed. The type strain is B7(T) (=DSM 21839(T) =CCUG 56815(T)).

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