A genus of aerobic, facultatively anaerobic bacteria (family Vibrionaceae) containing gram-negative, rod-shaped to coccoid cells that occur singly or in pairs or in clumps of chains; motile cells ordinarily possess a single, polar flagellum; some species are nonmotile. The metabolism of these organisms is both respiratory and fermentative. These bacteria are found in water and sewage; some are pathogenic to fresh water and marine animals. The type species is Aeromonas hydrophila.
Aeromonas hydrophila