SUMMARY: The kinetics of uptake of -alkanes by a filamentous fungus, were shown to be similar to hydrocarbon uptake kinetics described for yeasts. Transport of -alkanes across the cell membrane was accompanied by the partitioning of substantial amounts of hydrocarbon on to the cell surface. Metabolic inhibitors significantly reduced uptake rates. Most [C]dodecane was taken up by dodecane-grown mycelia; slower uptake was observed with mycelia grown on other -alkanes or glucose. Uptake of dodecane was not restricted to specific regions of the mycelium, although higher concentrations of C-labelled compounds were observed at the hyphal tips.


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