The Moraxella genus currently contains at least 14 different species, including M. catarrhalis, M. bovis, M. lacunata, M. osloensis, M. nonliquefaciens, M. atlantae, M. lincolnii, M. ovis, M. caviae, M. canis, M. equi, M. cuniculi, M. caprae and M. boevreii, which colonize both humans and animals. The genus is under constant revision, with recent taxonomic restructuring placing the bacterial species formerly known as Moraxella phenylpyruvica in the genus Psychrobacter as Psychrobacter phenylpyruvica and Moraxella urethralis in the Oligella genus as Oligella urethralis (Fig. 1).
The genus Moraxella and its positioning in the Order Pseudomonadales, Family Moraxellaceae. (Ω J. P. Hays.)
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Hays, J.P. (2006). The Genus Moraxella. In: Dworkin, M., Falkow, S., Rosenberg, E., Schleifer, KH., Stackebrandt, E. (eds) The Prokaryotes. Springer, New York, NY. https://doi.org/10.1007/0-387-30746-X_38
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