Figure 1
From: Heterogeneity of pneumococcal phase variants in invasive human infections
Pneumococcal colonies exhibiting the various opacity phenotypes. A) Serotype 12B displaying the opaque phenotype. B) Serotype 14 displaying a mixture of opacity phenotypes. Most colonies are transparent, white arrow indicates an opaque colony, open arrow indicates a sectored colony. C) Serotype 8 displaying mostly transparent colonies. White arrow indicates an opaque sectored colony.