An atypical, pigment-producing Metschnikowia strain from a leukaemia patient

Med Mycol. 2013 May;51(4):438-43. doi: 10.3109/13693786.2012.733429. Epub 2012 Nov 21.

Abstract

A yeast strain was isolated from the sputum sample of a leukaemia patient in the Spirito Santo Hospital of Pescara, Italy. The fungus produced a pigment that formed a reddish halo around colonies, and was identified and deposited as a Metschnikowia spp. (accession number IHEM 25107-GenBank accession number JQ921016) in the BCCM/IHEM collection of biomedical fungi and yeasts (Bruxelles, Belgium). Although the physiology of the strain was close to that of Metschnikowia sinensis, the D1/D2 sequence did not correspond to any previously described Metschnikowia species. Phylogeny of the genus Metschnikowia is complex and requires far more analysis. We present the first non-M. pulcherrima Metschnikowia spp. isolate recovered from a human, and emphasize the role of man as a transient carrier of environmental yeasts, the pathogenicity of which still needs to be defined.

MeSH terms

  • Amphotericin B / pharmacology
  • Antifungal Agents / pharmacology*
  • Base Sequence
  • DNA, Fungal / chemistry
  • DNA, Fungal / genetics
  • DNA, Ribosomal / chemistry
  • DNA, Ribosomal / genetics
  • Fluconazole / pharmacology
  • Humans
  • Italy
  • Leukemia / complications*
  • Male
  • Metschnikowia / classification
  • Metschnikowia / drug effects
  • Metschnikowia / isolation & purification*
  • Metschnikowia / physiology
  • Microbial Sensitivity Tests
  • Molecular Sequence Data
  • Mycoses / complications
  • Mycoses / microbiology*
  • Phylogeny
  • Pigments, Biological / metabolism
  • Pyrazines / metabolism*
  • Sequence Analysis, DNA
  • Sputum / microbiology
  • Voriconazole / pharmacology

Substances

  • Antifungal Agents
  • DNA, Fungal
  • DNA, Ribosomal
  • Pigments, Biological
  • Pyrazines
  • Amphotericin B
  • Fluconazole
  • pulcherriminic acid
  • Voriconazole

Associated data

  • GENBANK/JQ921016