Kazachstania psychrophila sp. nov., a novel psychrophilic yeast isolated from vacuum-packed beef

Antonie Van Leeuwenhoek. 2013 Dec;104(6):925-31. doi: 10.1007/s10482-013-0011-5. Epub 2013 Aug 23.

Abstract

Five novel ascosporogenous yeast strains (H382, H396, H409, H433(T) and H441) were found through a survey of vacuum-packed beef microbiota. Sequence analysis of ITS domain and LSU rRNA genes showed that the new strains represent a distinct lineage within the genus Kazachstania, closely related to Kazachstania lodderae (97.0 % identity) and Kazachstania ichnusensis (96.1 % identity). The main difference of strains H382, H396, H409, H433(T) and H441 to strains of known Kazachstania species is the maximum growth temperature, which is below 20 °C for the new strains, whereas related species grow at 25 °C. Furthermore, the strains differed from known Kazachstania species in assimilation and fermentation patterns of carbon sources. Based on these characteristics, the five strains are considered to represent a novel species of the genus Kazachstania for which the name Kazachstania psychrophila sp. nov. is proposed. The type strain is H433(T) (DSM 26230(T)=CBS 12689(T)). The Mycobank number of the type strain is MB 803980.

MeSH terms

  • Carbon / metabolism
  • Cluster Analysis
  • DNA, Fungal / chemistry
  • DNA, Fungal / genetics
  • DNA, Ribosomal / chemistry
  • DNA, Ribosomal / genetics
  • DNA, Ribosomal Spacer / chemistry
  • DNA, Ribosomal Spacer / genetics
  • Fermentation
  • Food Microbiology*
  • Genes, rRNA
  • Microscopy
  • Molecular Sequence Data
  • Mycological Typing Techniques
  • Phylogeny
  • RNA, Fungal / genetics
  • RNA, Ribosomal / genetics
  • Saccharomycetales / classification*
  • Saccharomycetales / genetics
  • Saccharomycetales / isolation & purification*
  • Saccharomycetales / physiology
  • Sequence Analysis, DNA
  • Temperature

Substances

  • DNA, Fungal
  • DNA, Ribosomal
  • DNA, Ribosomal Spacer
  • RNA, Fungal
  • RNA, Ribosomal
  • RNA, ribosomal, 26S
  • Carbon