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  • Title: Isolation and characterization of Microsporum gypseum lysosomes: role of lysosomes in macroconidia germination.
    Author: Page WJ, Stock JJ.
    Journal: J Bacteriol; 1972 Apr; 110(1):354-62. PubMed ID: 4336109.
    Abstract:
    Three types of lysosomes containing either acid protease, alkaline protease, or phosphodiesterase were isolated from a Microsporum gypseum macroconidial homogenate on Ficoll gradients. The acid protease was contained in an assimilative lysosome since its activity was affected by the complexity of the exogenous nitrogen source. Ultracentrifugation and electron microscopy revealed that the alkaline protease-containing vesicles were associated with the spore coat material prior to macroconidial germination. During macroconidial germination, zones of spore coat hydrolysis were seen surrounding these vesicles. Other larger vesicles, believed to contain the phosphodiesterase, were also observed in the spore coat during macroconidial germination.
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