The Nuclear Cytology of Blastomyces Dermatitidis

Abstract

The nuclear cytology of B. dermatitidis, studied in 14 strains from diverse sources, is essentially similar in all strains. The cells are shown to be multinucleate. All nuclei within a cell divide simultaneously. The sequence of events from interphase to interphase is descr. At metaphase the chromosomes are dense and contracted; at interphase they are elongated into delicate threads. A centriole appears at prophase which divides to form the polar bodies of the metaphase spindles. Nuclear division is independent of bud formation. The new cells are supplied with nuclei by migration of resting or interphase nuclei into them.