Prevotella intermedia - Gram-negative, rod prokaryote (bacterium)
Copyright 2007 Dennis Kunkel Microscopy, Inc.
Caption: Prevotella intermedia - Gram-negative, anaerobic, rod shaped, prokaryote (bacterium). Prevotella intermedia is a black pigmented bacterium that was formerly known as Bacteroides intermedia orBacteroides melaninogenicus. It can coaggregate with other Gram-positive oral bacteria such asPorphyromonas gingivalis and Actinomyces viscosus. P. intermedia is a normal part of the oral and vaginal flora but can cause respiratory infections including aspiration pneumonia, lung abscesses and osteomyelitis. It can also cause gingivitis and other types of oral lesions including vertical bone loss. P. intermedia, along with Porphyromonas gingivalis, are known to cause polymicrobial infections. Prevotella spp. often become resistant to antibiotics, especially tetracycline and penicillin. Magnification*: x3,400 Type: SEM
*(Magnifications are based on a 35mm slide image of 24mm in the narrow dimension.)