GROWTH CHARACTERISTICS OF FUNGI AND ACTINOMYCETES

Abstract
Growth patterns of 6 filamentous microorganisms, Fusarium oxysporum, Aspergillus niger, Aspergillus flavus, Cunninghamella elegans, Streptomyces sp. and Nocardia sp., were examined by measuring O2 uptake in Warburg microrespirometer vessels. In all instances, a straight line relationship between the cube root of O2 consumption and time was observed. This observation is interpreted as the result of 3-dimensional growth of the microorganisms in liquid media. Growth rate constants of the fungi and actinomycetes have been calculated from these cube root plots.

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