Electron Microscope Observations of Rhizopus rhizopodiformis

Abstract

SUMMARY: The fine structure of Rhizopus rhizopodiformis was investigated. Other than a slightly modified potassium permanganate fixative, routine techniques of electron microscopy were used. The walls of the hyphae were fibrillar and electron dense. A plasmalemma, perhaps double in nature, was present. Yet to be interpreted membrane-bound vesicles were located uniformly just inside the plasmalemma. Classical ubiquitous mitochondria and smooth-surfaced endoplasmic reticulum were visible. Two inclusions, lipid and glycogen, were present. The hyphae were frequently multi-nucleated. The nuclear walls were doubled, porous, and connected with the endoplasmic reticulum.