Bacteroidetes

Magnified 1000X, this photomicrograph depicted numbers of Gram-negative Bacteroides fragilis subsp. fragilis bacteria, which had been cultured on Schaedler agar medium, and processed using the Gram-stain method.Created: 1974

This 1972 photograph depicts two Bacteroides fragilis subsp. fragilis bacterial cultures grown on blood agar medium for 48 hours.Created: 1972

This 1972 photograph revealed the morphology displayed by two colonies of Bacteroides fragilis subsp. ovatus that had been grown on blood agar medium for 48 hours.Created: 1972

This 1972 photograph depicts two Bacteroides fragilis subsp. fragilis bacterial colonies grown on blood agar medium for 48 hours.Created: 1972

This micrograph depicts Bacteroides fragilis subsp. thetaiota bacteria that had been cultured in blood agar medium for 48 hours.Created: 1972