Ultrastructural Observations on Lamellar and Tubular Membrane Configurations in Fungi

抄録

A morphological study was made of membrane configurations in Penicillium viridicatum Westling and Trichothecium roseum Link, both members of the Fungi imperfecti. These membrane configurations (similar to previously described “myelin figures” and “mesosomes”) were observed after glutaraldehyde fixation and osmium tetroxide postfixation, but not after potassium permanganate fixation. Configurations with lamellar membranes occur in both P. viridicatum and T. roseum. In P. viridicatum, these configurations were found in the cytoplasm and in vacuoles, while in T. roseum they were found between the cell wall and plasmalemma and in the cytoplasm. Configurations with tubular elements were found in the cytoplasm of T. roseum, often in close association with the plasmalemma; and in vacuoles. These configurations appear to originate in the cytoplasm or between the plasmalemma and cell wall, and are later enclosed in the vacuoles, either in the living fungus or during preparation for electron microscopy.