title: The antifungal effect of cellobiose lipid on the cells of Saccharomyces cerevisiae depends on carbon source.
abstract: The cellobiose lipid of Cryptococcus humicola, 16-(tetra-O-acetyl-β-cellobiosyloxy)-2-hydroxyhexadecanoic acid, is a natural fungicide. Sensitivity of the cells of Saccharomyces cerevisiae to the fungicide depends on a carbon source. Cellobiose lipid concentrations inducing the leakage of potassium ions and ATP were similar for the cells grown in the medium with glucose and ethanol. However, the cells grown on glucose and ethanol died at 0.05 mg ml(-1) and 0.2 mg ml(-1) cellobiose lipid, respectively. Inorganic polyphosphate (PolyP) synthesis was 65% of the control with 0.05 mg ml(-1) cellobiose lipid during cultivation on ethanol. PolyP synthesis was not observed during the cultivation on glucose at the same cellobiose lipid concentration. The content of longer-chain polyP was higher during cultivation on ethanol. We speculate the long-chained polyP participate in the viability restoring of ethanol-grown cells after treatment with the cellobiose lipid.
authors: Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences, Pushchino, Moscow Region 142290 Russia.
authors: Ludmila V
authors: LV
authors: Trilisenko
authors: Ekaterina V
authors: EV
authors: Kulakovskaya
authors: Tatiana V
authors: TV
authors: Kulakovskaya
authors: Alexander Yu
authors: AY
authors: Ivanov
authors: Nikita V
authors: NV
authors: Penkov
authors: Vladimir M
authors: VM
authors: Vagabov
authors: Igor S
authors: IS
authors: Kulaev
keywords: ATP; Carbon source; Cellobiose lipid; Cryptococcus humicola; Fungicide; Inorganic polyphosphate; Potassium ion; Saccharomyces cerevisiae
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