Bacterial Morphology as Shown by the Electron Microscope

Abstract

Bacteria are cells with solid cell-wall and fluid, or potentially fluid, inner protoplasma distinct from the cell-wall. Electron micrographs of cells of a strain of Fusobacterium show striking differences in density within the protoplasm. Correlation of the significance of the differentiations observable with the electron microscope with those observable by microchemical and staining techniques, though hardly more than begun, presents a challenging problem.