Demonstration of Malassezia furfur and M. sympodialis together with M. pachydermatis in veterinary specimens

Mycoses
P RaabeR Weiss

Abstract

In the present study, 47 wild-type isolates of the genus Malassezia were isolated from dog and cat specimens by means of a simple differentiating system recently published. The purpose was to determine whether any of the other seven Malassezia spp. apart from M. pachydermatis occur in carnivores. Of the 47 isolates, three had been obtained from cats (ear 2, skin 1) and 44 from dogs (ear 37, skin 3, faeces 2, claw and paw 2). After primary isolation, they were subcultured on mDixon agar and then purified and differentiated by means of assimilation of Cremophor EL, splitting of esculin, growth on lipid-free medium and formation of tryptophan-dependent pigments and fluorochromes. Thus, a total of 100 strains could be obtained from the 47 primary isolates. Referring to the source material, M. pachydermatis was found in 83%, M. furfur in 45% and M. sympodialis in 75%. More than 80% of cultures were mixed, comprising two or all three species; a single species was isolated in only nine cases. This shows that animals are not colonized by M. pachydermatis alone, as has been thought until now, but in nearly all cases by mixed cultures. Thus, (domestic) animals could well be a reservoir for other Malassezia species such as M. furfur and M...Continue Reading

References

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Citations

Mar 3, 2004·Veterinary Dermatology·Didier Pin
Aug 9, 2005·FEMS Yeast Research·Roma BatraA K Gupta
Sep 1, 2005·Journal of Veterinary Diagnostic Investigation : Official Publication of the American Association of Veterinary Laboratory Diagnosticians, Inc·Claudia CafarchiaDomenico Otranto
Nov 16, 2001·Journal of Veterinary Medicine. B, Infectious Diseases and Veterinary Public Health·Eduardo Robson DuarteJúnia Soares Hamdan
Nov 22, 2012·Medical Mycology·Seung-Hee HanCheol-Yong Hwang
Sep 12, 2007·Veterinary Dermatology·Francisco A UzalRichard L Walker
Nov 30, 2019·Medical Mycology·Courtney Meason-SmithAline Rodrigues Hoffmann
Feb 8, 2003·Mycoses·M J CrespoF J Cabañes
Feb 19, 2000·Mycoses·E Guého, J Guillot
Jun 1, 2005·Journal of Feline Medicine and Surgery·S NardoniM Corazza
Sep 14, 2000·The Veterinary Record·R Wagner, S Schadler
Jun 2, 2000·Journal of Clinical Microbiology·M J CrespoF J Cabañes

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