Pseudomonas alcaligenes is a Gram-negative aerobic bacterium used for bioremediation purposes of oil pollution, pesticide substances, and certain chemical substances, as it can degrade polycyclic aromatic hydrocarbons.

[1] It can be a human pathogen, but occurrences are very rare.

[2][3] Based on 16S rRNA analysis, P. alcaligenes has been placed in the P. aeruginosa group.

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