Peer-reviewed veterinary case report
Lipid-dependent Malassezia yeast found in dog skin lesions
By Cafarchia, C et al.·Published in Medical mycology·2011·Dipartimento di Sanità, Italy·View original on PubMed →
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Original publication title: Physiological and molecular characterization of atypical lipid-dependent Malassezia yeasts from a dog with skin lesions: adaptation to a new host?
- Species:
- dog
Plain-English summary
A dog with skin lesions was found to have unusual types of yeast called Malassezia, which are typically associated with human skin. Three different isolates of this yeast were identified, with one showing a close relationship to a type that usually affects dogs. The findings suggest that these yeasts may have adapted to living on dogs, which could explain the skin problems. Understanding these yeast types can help veterinarians better treat skin issues in dogs.
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Abstract
Three lipid-dependent Malassezia isolates (here named 114A, 114B and 114C) recovered from a dog with skin lesions were phenotypically and genotypically characterized. All presented ovoid cells and buds formed on a narrow base. Most of the results from physiological tests were consistent with those of Malassezia furfur. The phylogenetic analysis of ITS-1 and LSU nucleotide sequences was concordant in placing all three clinical Malassezia isolates close to M. furfur. However, the phylogenetic data on the chs-2 sequence revealed that clinical isolate 114A is distinct from M. furfur and was closely affiliated to the sequence of M. pachydermatis with high nodal support. In particular, lipid-dependent isolates 114A displayed chs-2 sequences similar (100%) to that of the non-lipid dependent species Malassezia pachydermatis. The presence of the genetic and physiological polymorphisms detected in these three isolates of M. furfur could have resulted from a process of adaptation of this anthropophilic species to a new host.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/21070187/