A genus of motile, polar-flagellate, non-spore-forming, strictly aerobic bacteria (family Pseudomonadaceae) containing straight or curved, but not helical, gram-negative rods that occur singly. The metabolism is respiratory, never fermentative. They occur commonly in soil and in freshwater and marine environments. Some species are plant pathogens. Others are involved in human infections. The type species is Pseudomonas aeruginosa.
[pseudo- + G. monas, unit, monad]
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