Negativicutes

Magnified 1125X, this photomicrograph revealed the presence of numerous Gram-negative anaerobic, gram-negative cocci, i.e., round-shaped, Veillonella sp. bacteria.Created: 1972

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