Abstract
The fatty acid profiles of Antarctic (n = 7) and non-Antarctic yeasts (n = 7) grown at different temperatures were analysed by gas chromatography–mass spectrometry. The Antarctic yeasts were enriched in oleic 18:1 (20–60 %), linoleic 18:2 (20–50 %) and linolenic 18:3 (5–40 %) acids with lesser amounts of palmitic 16:0 (<15 %) and palmitoleic 16:1 (<10 %) acids. The non-Antarctic yeasts (n = 4) were enriched in 18:1 (20–55 %, with R. mucilaginosa at 75–80 %) and 18:2 (10–40 %) with lesser amounts of 16:0 (<20 %), 16:1 (<20 %) and stearic 18:0 (<10 %) acids. By contrast, Saccharomyces cerevisiae strains (n = 3) were enriched in 16:1 (30–50 %) and 18:1 (20–40 %) with lesser amounts of 16:0 (10–25 %) and 18:0 (5–10 %) acids. Principal component analysis grouped the yeasts into three clusters, one belonging to the S. cerevisiae strains (enriched in 16:0, 16:1 and 18:1), one to the other non-Antarctic yeasts (enriched in 18:1 and 18:2) and the third to the Antarctic yeasts (enriched in 18:2 and 18:3).
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The work was supported by internal research Grants from the University of New England and a postgraduate scholarship to MB.
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Bhuiyan, M., Tucker, D. & Watson, K. Gas chromatography–mass spectrometry analysis of fatty acid profiles of Antarctic and non-Antarctic yeasts. Antonie van Leeuwenhoek 106, 381–389 (2014). https://doi.org/10.1007/s10482-014-0183-7
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DOI: https://doi.org/10.1007/s10482-014-0183-7