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Published on: February 14, 2018
Lysis of Paracoccidioides brasiliensis by Zygosporium geminatum
G San-Blas1, B Moreno, A M Calcagno
1Instituto Venezolano de Investigaciones Científicas (IVIC), Centro de Microbiología y Biología Celular, Apartado 21827, Caracas 1020A, Venezuela. gsanblas@pasteur.ivic.ve
Abstract:
Zygosporium geminatum, isolated as a contaminant in a culture of the mycelial phase of Paracoccidioides brasiliensis, was lethal to the latter organism. Its lytic action was due to exocellular alpha-1,3- and beta-1,3-glucanases which degraded the P. brasiliensis cell wall. The alpha-1,3-glucanase was more active at 30 degrees C and the beta-1,3-glucanase at 23 degrees C, each having pH 6.0 as its optimum.
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