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Journal of Clinical Microbiology, January 2009, p. 124-128, Vol. 47, No. 1
0095-1137/09/$08.00+0     doi:10.1128/JCM.01933-08
Copyright © 2009, American Society for Microbiology. All Rights Reserved.

Phenotypic and Genotypic Characterization of Arcanobacterium haemolyticum Isolates from Infections of Horses{triangledown}

Abdulwahed Ahmed Hassan,1 Hivda Ülbegi-Mohyla,2 Talah Kanbar,2 Jörg Alber,2 Christoph Lämmler,2* Amir Abdulmawjood,3 Michael Zschöck,4 and Reinhard Weiss5

De Gezondheidsdienst voor Dieren, Postbus 9, 7400 AA Deventer, The Netherlands,1 Institut für Pharmakologie und Toxikologie, Justus-Liebig-Universität Gießen, Frankfurter Str. 107, 35392 Gießen, Germany,2 Institut für Tierärztliche Nahrungsmittelkunde, Justus-Liebig-Universität Gießen, Frankfurter Str. 92, 35392 Gießen, Germany,3 Landesbetrieb Hessisches Landeslabor, Schubertstr. 60, 35392 Gießen, Germany,4 Institut für Hygiene und Infektionskrankheiten der Tiere, Justus-Liebig-Universität Gießen, Frankfurter Str. 85-91, 35392 Gießen, Germany5

Received 7 October 2008/ Accepted 11 November 2008

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.


* Corresponding author. Mailing address: Institut für Pharmakologie und Toxikologie, Justus-Liebig-Universität Gießen, Frankfurter Str. 107, 35392 Gießen, Germany. Phone: 49-6419938406. Fax: 49-6419938409. E-mail: Christoph.Laemmler{at}vetmed.uni-giessen.de

{triangledown} Published ahead of print on 19 November 2008.


Journal of Clinical Microbiology, January 2009, p. 124-128, Vol. 47, No. 1
0095-1137/09/$08.00+0     doi:10.1128/JCM.01933-08
Copyright © 2009, American Society for Microbiology. All Rights Reserved.