Mycelial Phase of Paracoccidioides brasiliensis and Blastomyces dermatitidis: an Electron Microscope Study

摘要: A comparative study of the mycelial phase Paracoccidioides brasiliensis and Blastomyces dermatitidis reveals that both fungi are very much alike, containing multiple nuclei nuclear pores, mitochondria, ribosomes, scarce endoplasmic reticulum, intracytoplasmic membrane systems, glycogen, vacuoles. Shadowed cell walls show fine fibrillar surfaces contrast with those in yeast phase. The system is continuous plasma similar to bacterial mesosomes. Granules light cores dark rims observed membrane. Live hyphae growing inside a dead hypha found more frequently immersed cultures than solid-medium cultures, suggesting breakage could elicit this phenomenon.