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Corynebacterium conjunctivae: A New Corynebacterium Species Isolated from the Ocular Surface of Healthy Horses

Investigación publicada en Animals

18 de julio de 2022

Twenty-two unidentified Gram-positive, rod-shaped organisms were recovered from the conjunctival surface of apparently healthy horses and subjected to a polyphasic taxonomic analysis. Based on cellular morphology and biochemical criteria, the isolates were tentatively assigned to the genus Corynebacterium, although they did not match any recognized species. Comparative 16S rRNA gene sequencing studies demonstrated that all of the isolates were phylogenetically members of the genus Corynebacterium. The isolates shared 99.4 to 100% 16S rRNA gene sequence similarity among the strains and 96.5% similarity with Corynebacterium tapiri 2385/12T, which was the closest phylogenetically related species. The DNA G+C content was 58.4 mol%. The major fatty acids were C15:0, C16:0, C17:1 ω8c and C18:1 ω9c, while the predominant mycolic acids consisted of C30:0, C32:0 and C34:0. The isolates were distinguished from related Corynebacterium species by a number of phenotypic properties. On the basis of phenotypic and phylogenetic evidence, it is proposed that the unknown isolates from horses be classified in the genus Corynebacterium as Corynebacterium conjunctivae sp. nov. The type strain of C. conjunctivae is ICM19-01138T (DSM 109759T = CCUG 73728T)




Fernandez-Garayzabal JF., LaFrentz S., Casamayor A., Abarca E., Mohammed HH., Cuming RS., Arias CR., Dominguez L. y Vela AI..




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Corynebacterium conjunctivae: A New Corynebacterium Species Isolated from the Ocular Surface of Healthy Horses

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Corynebacterium conjunctivae: A New Corynebacterium Species Isolated from the Ocular Surface of Healthy Horses



Participantes:

Universidad ComplutenseServicio de Identificación y Caracterización Microbiana (ICM). Centro de Vigilancia Sanitaria Veterinaria (VISAVET). Universidad Complutense (UCM).

Universidad ComplutenseDepartamento de Sanidad Animal. Facultad de Veterinaria. Universidad Complutense (UCM).

Department of Biological Sciences. Auburn University.

Servei d´Oftalmologia. ARS Veterinaria.

Department of Aquatic Animal Medicine and Management. Faculty of Veterinary Medicine. Assiut University.

Scone Equine Hospital.

School of Fisheries. Aquaculture and Aquatic Sciences. Auburn University.







Animals
FACTOR YEAR Q
2.752 2020

NLMID: 101635614

PMID: 35883374

ISSN: 2076-2615



TÍTULO: Corynebacterium conjunctivae: A New Corynebacterium Species Isolated from the Ocular Surface of Healthy Horses


REVISTA: Animals (Basel)


NUMERACIÓN: 12(14):1827


AÑO: 2022


EDITORIAL: MDPI


AUTORES: Fernandez-Garayzabal JF., LaFrentz S., Casamayor A., Abarca E., Mohammed HH., Cuming RS., Arias CR., Dominguez L. and Vela AI..


PARTICIPANTES VISAVET


First
José Francisco Fernández-Garayzabal Fernández
3rd
Almudena Casamayor Sanz
8th
Lucas Domínguez Rodríguez
Last
Ana Isabel Vela Alonso

DOI: https://doi.org/10.3390/ani12141827


CITA ESTA PUBLICACIÓN:

Fernandez-Garayzabal JF., LaFrentz S., Casamayor A., Abarca E., Mohammed HH., Cuming RS., Arias CR., Dominguez L. y Vela AI. Corynebacterium conjunctivae: A New Corynebacterium Species Isolated from the Ocular Surface of Healthy Horses. Animals. 12(14):1827. 2022. (A). ISSN: 2076-2615. DOI: 10.3390/ani12141827


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