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J Bacteriol. 1972 December; 112(3): 1383-1386
Copyright © 1972 American Society for Microbiology. All Rights Reserved.

Scanning Electron Microscopy of Spore Germination in Dictyostelium discoideum

^a Department of Bacteriology, University of Wisconsin; Forest Products Laboratory; and Cryobiology Research Institute, Madison, Wisconsin 53706

ABSTRACT

The ellipsoidal dormant spores of Dictyostelium dicoideum prepared by freeze-drying had a uniform, compact appearance with fine wrinkles or ridges on the surface. Swollen spores were uneven in appearance, without fine wrinkles but with a seemingly expanded surface covering. The surfaces of the postgermination spore husks appeared unaltered except for a single straight exit slit along the longitudinal plane.

¹ Present address: Department of Zoology, University of Wyoming, Laramie, Wyo. 82070.