Where are you hiding?

Pseudomonas aeruginosa can be found living in some very unusual conditions and places that are somewhat unexpected for bacteria! Normally, this bacterium will be found colonizing/growing at temperature conditions ranging between 35 and 42 degrees Celsius. In addition to its easily classified temperature range, Pseudomonas aeruginosa is commonly found in moist terrestrial environments such as soil, it may also be found in some aquatic environments. Since Pseudomonas aeruginosa is in such close association with soil, it has also been found in plants. Since Pseudomonas aeruginosa is a parasitic bacterium, its interactions with plants are detrimental to the growth and development of the infected plant (For more about other interactions visit my interactions page!).  Because of the minimal nutritional requirements of this organism, it can be found growing in some very odd places that meet those basic requirements.  For example, Pseudomonas aeruginosa has been able to grow in very toxic environments associated with a variety of fossil fuels. It can also exist outside of its ideal temperature range in hot tubs and swimming pools when nutrients are available. This kind of odd growth capability can be attributed to this bacterium’s resistance to dyes, salts and antibiotics. Pseudomonas aeruginosa is most infamous for being found in sterile hospital environments as a multi-drug resistant pathogen. Pseudomonas aeruginosa has become so widespread because it has become less susceptible to mainline antibiotics while other organisms are killed off.  For more information about how Pseudomonas aeruginosa is able to survive in the hospital environment, visit the adaptations page!


Above images: All different places Pseudomonas aeruginosa can be found. All images from WikiCommons.


Because Pseudomonas aeruginosa is generally a problem in hospitals, this organism can be found worldwide where hospitals are set up.

Below: image of the world because there are hospitals worldwide- from WikiCommons

Let's move on to some adaptations that help this organism survive! (Adaptation)