Phenotypic and Genotypic Characterization of Arcanobacterium haemolyticum Isolates from Infections of Horses

Author:

Hassan Abdulwahed Ahmed1,Ülbegi-Mohyla Hivda2,Kanbar Talah2,Alber Jörg2,Lämmler Christoph2,Abdulmawjood Amir3,Zschöck Michael4,Weiss Reinhard5

Affiliation:

1. De Gezondheidsdienst voor Dieren, Postbus 9, 7400 AA Deventer, The Netherlands

2. Institut für Pharmakologie und Toxikologie, Justus-Liebig-Universität Gießen, Frankfurter Str. 107, 35392 Gießen, Germany

3. Institut für Tierärztliche Nahrungsmittelkunde, Justus-Liebig-Universität Gießen, Frankfurter Str. 92, 35392 Gießen, Germany

4. Landesbetrieb Hessisches Landeslabor, Schubertstr. 60, 35392 Gießen, Germany

5. Institut für Hygiene und Infektionskrankheiten der Tiere, Justus-Liebig-Universität Gießen, Frankfurter Str. 85-91, 35392 Gießen, Germany

Abstract

ABSTRACT The present study was designed to characterize phenotypically and genotypically seven Arcanobacterium haemolyticum strains obtained from infections of six horses. All seven strains showed the cultural and biochemical properties typical of A. haemolyticum and were susceptible to most of the antibiotics tested. The species identification could be confirmed by amplification and sequencing of the 16S rRNA gene and the 16S-23S rRNA intergenic spacer region and by PCR amplification of species-specific parts of the gene encoding phospholipase D in A. haemolyticum . Use of the latter could possibly improve future identification of this generally human pathogenic bacterial species which, according to the present results, seems to occur also in infections of horses.

Publisher

American Society for Microbiology

Subject

Microbiology (medical)

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