Eighteen new oleaginous yeast species

Luis A. Garay, Irnayuli R. Sitepu, Tomas Cajka, Idelia Chandra, Sandy Shi, Ting Lin, J. Bruce German, Oliver Fiehn, Kyria L. Boundy-Mills

Research output: Contribution to journalArticlepeer-review

25 Scopus citations

Abstract

Of 1600 known species of yeasts, about 70 are known to be oleaginous, defined as being able to accumulate over 20 % intracellular lipids. These yeasts have value for fundamental and applied research. A survey of yeasts from the Phaff Yeast Culture Collection, University of California Davis was performed to identify additional oleaginous species within the Basidiomycota phylum. Fifty-nine strains belonging to 34 species were grown in lipid inducing media, and total cell mass, lipid yield and triacylglycerol profiles were determined. Thirty-two species accumulated at least 20 % lipid and 25 species accumulated over 40 % lipid by dry weight. Eighteen of these species were not previously reported to be oleaginous. Triacylglycerol profiles were suitable for biodiesel production. These results greatly expand the number of known oleaginous yeast species, and reveal the wealth of natural diversity of triacylglycerol profiles within wild-type oleaginous Basidiomycetes.

Original languageEnglish (US)
Pages (from-to)887-900
Number of pages14
JournalJournal of Industrial Microbiology and Biotechnology
Volume43
Issue number7
DOIs
StatePublished - Jul 1 2016

Keywords

  • Basidiomycete
  • Biodiesel
  • Intracellular lipid
  • Oleaginous yeast
  • Triacylglycerol

ASJC Scopus subject areas

  • Biotechnology
  • Applied Microbiology and Biotechnology

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