Pseudomonas aeruginosa
P. aeruginosa is a Gram-negative, rod-shaped bacterium, known by its environmental abundance. It can be found in water, soil, animal, human and plant environments, which can be explained by its versatile energy metabolism; it can survive without oxygen (anaerobic). It has multiple hair-like attachments (pili) which are found on the surface of many bacteria and archaea to attach to other cells, and one flagellum, which is another but longer hair-like structure which provide motility.