Journal
JOURNAL OF INDUSTRIAL MICROBIOLOGY & BIOTECHNOLOGY
Volume 43, Issue 7, Pages 887-900Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s10295-016-1765-3
Keywords
Oleaginous yeast; Triacylglycerol; Basidiomycete; Intracellular lipid; Biodiesel
Categories
Funding
- NIH Fogarty International Center [U01TW008160]
- NIH Office of Dietary Supplements
- National Science Foundation
- Department of Energy
- USDA Agricultural Food Research Initiative of the National Food and Agriculture, USDA [35621-04750]
- Science Translation and Innovation Research (STAIR) Grant Program of the University of California Davis
- Consejo Nacional de Ciencia y Tecnologia (CONACYT) [291795]
- NIH [HL113452, DK097154, S10-RR031630]
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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.
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