Moraxella porci sp. nov., a new species isolated from pigs
Investigation published in International Journal of Systematic and Evolutionary Microbiology
October 1st, 2010
Nine Gram-negative, catalase- and oxidase-positive coccus-shaped bacteria were isolated from pigs affected of different pathological processes. Phenotypic and genotypic methods were performed to determine the relationships of these isolates to species belonging to the genus Moraxella. Analysis of the 16S rRNA gene sequence demonstrated that the clinical isolates represent a new sub-line within the genus Moraxella. The isolates were closely related to Moraxella cuniculi and Moraxella pluranimalium with a 16S rRNA gene sequence similarity of 98.1% and 99.1%, respectively. The isolates displayed DNA-DNA relative binding ratios to each other of 74% but distinctly lower levels of DNA hybridization with their closely phylogenetically related moraxellae (lower than 32%). The new group of isolates were distinguished from all other Moraxella species by physiological and biochemical tests. On the basis of the phenotypic and molecular data, the nine Moraxella isolates from pigs represent a novel species within the genus Moraxella, for which the name Moraxella porci sp. nov. is proposed. The type strain is SN9-4MT (=CECT 7294T = CCUG 54912T)
Vela AI., Sanchez-Porro C., Aragon V., Olvera A., Dominguez L., Ventosa A. and Fernandez-Garayzabal JF..
 | Servicio de Identificación y Caracterización Microbiana (ICM). Centro de Vigilancia Sanitaria Veterinaria (VISAVET). Universidad Complutense (UCM). |
| Departamento de Sanidad Animal. Facultad de Veterinaria. Universidad Complutense (UCM). |
 | Departamento de Microbiología y Parasitología. Facultad de Farmacia. Universidad de Sevilla (US). |
 | Centre de Recerca en Sanitat Animal (CReSA). Universitat Autònoma de Barcelona (UAB). |
