FIG. 3.

The gpip-3 and gpit-1 mutants have an abnormal “cell-within-a-cell” morphology. The gpip-3 mutant, gpit-1 mutant, and wild-type (GTH-16) strains were grown atop cellophane sheets on standard agar growth medium and prepared for electron microscopy as described in Materials and Methods. Representative electron micrographs of a wild-type cell (A), the gpip-3 mutant (B), and the gpit-1 mutant (C) are shown. Note the “cell-within-a-cell” morphology characteristic of the mutant cells. The scale bar in panel C represents a distance of 1 μm.