Affiliation:
1. Departamento de Microbiología, Instituto Venezolano de Investigaciones Cientificas, Apartado 1827, Caracas, Venezuela
Abstract
A comparative study of the mycelial phase of
Paracoccidioides brasiliensis
and
Blastomyces dermatitidis
reveals that both fungi are very much alike, containing multiple nuclei and nuclear pores, mitochondria, ribosomes, scarce endoplasmic reticulum, intracytoplasmic membrane systems, glycogen, and vacuoles. Shadowed cell walls show fine fibrillar surfaces that contrast with those in the yeast phase. The intracytoplasmic membrane system is continuous with the plasma membrane and is similar to bacterial mesosomes. Granules with light cores and dark rims are observed in the plasma membrane. Live hyphae growing inside a dead hypha are found much more frequently in immersed cultures than in solid-medium cultures, suggesting that breakage of the hypha could elicit this phenomenon.
Publisher
American Society for Microbiology
Subject
Molecular Biology,Microbiology
Cited by
56 articles.
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