SUMMARY: Colonies of (three strains) and were examined by light and electron microscopy and their characteristic morphology, ultrastructure and morphogenesis are described. and , PG8 and oral strains, developed typical ‘fried-egg’ colonies which were remarkably heterogeneous in size. The colonies of strain NCTC 10116 were more homogeneous and grew mainly on the surface of the agar showing a fine granular appearance. produced smaller, granular colonies which grew deeply embedded in the agar and generally without much surface growth. The cellular ultrastructure in these colonies was also examined. The results indicate that several aspects of colony morphogenesis and ultrastructure varied for each of the three species examined.


Article metrics loading...

Loading full text...

Full text loading...


Most cited this month Most Cited RSS feed

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error