The purpose of this investigation was to evaluate the possible taxonomic significance of the "rodlet" patterns and spore wall configurations of conidia from monosporous cultures of Penicillium digitatum Saccardo and Aspergillus nidulans Eidam var. echinulatus Fennell & Raper. Freeze-etching the conidiospores from single spore isolates of these fungi revealed that spore wall patterns and configurations vary much too greatly to be of taxonomic importance on the strain and subspecies level. Environmental factors and genetic influences are discussed as possible mechanisms causing the variations of the spore wall configurations. A membrane-like structure that covers the "rodlet" patterns and which hinders spore surface investigations of conidia of these fungi is discussed.
College and Department
Plant and Wildlife Sciences
BYU ScholarsArchive Citation
Fuji, Raymond Kunito, "Surface characteristics of conidia from monosporous cultures of Penicillium Digitatum and Aspergillus Nidulans Var. Echinulatus" (1969). Theses and Dissertations. 8055.