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Appl Environ Microbiol. 1973 March; 25(3): 454-457
Copyright © 1973 American Society for Microbiology. All Rights Reserved.

Utilization of n-Alkanes by Cladosporium resinae

Department of Biochemistry, Faculty of Medicine, University of Singapore, Singapore 3

ABSTRACT

Four different isolates of Cladosporium resinae from Australian soils were tested for their ability to utilize liquid n-alkanes ranging from n-hexane to n-octadecane under standard conditions. The isolates were unable to make use of n-hexane, n-heptane, and n-octane for growth. In fact, these hydrocarbons, particularly n-hexane, exerted an inhibitory effect on spore germination and mycelial growth. All higher n-alkanes from n-nonane to n-octadecane were assimilated by the fungus, although only limited growth occurred on n-nonane and n-decane. The long chain n-alkanes (C₁₄ to C₁₈) supported good growth of all isolates, but there was no obvious correlation between cell yields and chain lengths of these n-alkanes. Variation in growth responses to individual n-alkane among the different isolates was also observed. The cause of this variation is unknown.