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Macroconidial Germination in Microsporum gypseum¹

^a Department of Microbiology, The University of British Columbia, Vancouver, British Columbia, Canada

ABSTRACT

Biochemical events which occur during macroconidial germination have been studied in the dermatophyte Microsporum gypseum. The specific activity levels of various metabolic enzymes have been assayed during germination time periods. The accumulated levels of several of these enzymes, as a function of exogenous carbohydrate source, have been investigated. M. gypseum was found to possess a constitutive glyoxalate shunt, a constitutive glucokinase, a fructose phosphoenolpyruvate transferase, and a mannitol phosphoenolpyruvate transferase. The integration of endogenous reserve utilization during germination is discussed. The purification and properties of an alkaline phosphatase and its possible relationship to sporulation and spore germination also are described.

² Present address: Department of Biochemistry and Biophysics, University of California, Davis, Calif. 95616.

¹ A preliminary report covering part of this work was presented at the 70th Annual Meeting of the American Society for Microbiology, Boston, Mass., 26 April–1 May 1970.