Untersuchungen zur Cytologie und zum Wachstum verschiedener Stämme von Fomes annosus (Fr.) Cooke

Studies of cytology and growth of different strains of Fomes annosus (Fr.) Cooke. I. Numbers of nuclei and DNA content in different isolations and stages of development. In cytological and cytophotometric studies, determinations were made of nuclear numbers and DNA contents of both conidia and basidiospores, of the primary mycelium and of mycelium after plasmogamy. Information was also obtained on parasexual phenomena in dikaryotic mycelium which can be held responsible for the great variability of the fungus.