Necropsobacter

Christensen, Henrik; Bisgaard, Magne; Kuhnert, Peter (2020). Necropsobacter. In: Whitman, William B.; Kämpfer, Peter (eds.) Bergey's Manual of Systematics of Archaea and Bacteria (pp. 1-6). Chichester, UK: John Wiley 10.1002/9781118960608.gbm01852

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The genus Necropsobacter includes taxa previously reported as the SP group and Stewart–Letcher (SL) group based on phenotypic characteristics. The genus includes typical members of the family Pasteurellaceae with respect to cultural characteristics and colony morphology. Neither hemin (X‐factor) nor NAD (V‐factor) is required for growth. Hemolysis is not observed on bovine blood agar. Acid is produced from (+)‐l‐arabinose, (+)‐d‐galactose, (+)‐d‐mannose, and maltose. Gas is produced from glucose. Negative reactions are observed for urease, ornithine decarboxylase, and indole. The genus includes isolates from guinea pigs and other rodents, rabbits, a dog, and humans. The taxon formed a monophyletic group based on 16S rRNA and partial rpoB sequence analysis compared to other genera of the family. 16S rRNA gene sequence comparison showed at least 98.5% similarity between isolates of the SP group, and strain P625 (SL group) only showed a 16S rRNA similarity of 95.5% to the SP group. The genus consists of only one species Necropsobacter rosorum. Strain P625 of the SL group remained unclassified at species level. Ubiquinones and demethylmenaquinone are produced by the type strain of N. rosorum.

DNA G + C content (whole‐genomic sequencing) (mol%): 48.9.

Type species: Necropsobacter rosorum Christensen et al. 2011VP.

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