The bacteria Pseudomonas aeruginosa is useful because of its...

Pseudomonas aeruginosa is a Gram-negative, aerobic rod belonging to the bacterial family Pseudomonadaceae. These bacteria are common inhabitants of soil water. They occur regularly on the surfaces of plants and occassionally on the surfaces of animals. The bacterium will grow in the absence of $\mathrm{O}_2$ if $\mathrm{NO}_3$ is available as a respiratory electron acceptor. $Q, a$ possesses the metabolic versatility. Organic growth factors are not required, and it can use more than thirty organic compounds for growth. Pseudomonas aeruginosa is often observed growing in "distilled water" which is evidence of its minimal nutritional requirements. - It is able to grow at temperatures as high as 42 degrees. - Its tolerance to a wide variety of physical conditions, including temperature, contributes to its ecological success and makes it suitable for decomposing a variety of organic compounds in varied environmental conditions.