Bacterium pyocyaneum (Zopf 1884) Lehmann and Neumann 1896
Pseudomonas polycolor Clara 1930
Pseudomonas vendrellinomen nudum 1938
Pseudomonas aeruginosa in petri dish
Pseudomonas aeruginosa is a common encapsulated, Gram-negative, aerobic–facultatively anaerobic, rod-shaped bacterium that can cause disease in plants and animals, including humans.[1][2] A species of considerable medical importance, P. aeruginosa is a multidrug resistant pathogen recognized for its ubiquity, its intrinsically advanced antibiotic resistance mechanisms, and its association with serious illnesses – hospital-acquired infections such as ventilator-associated pneumonia and various sepsis syndromes. P. aeruginosa is able to selectively inhibit various antibiotics from penetrating its outer membrane - and has high resistance to several antibiotics, according to the World Health Organization P. aeruginosa poses one of the greatest threats to humans in terms of antibiotic resistance.[3]
The organism is considered opportunistic insofar as serious infection often occurs during existing diseases or conditions– most notably cystic fibrosis and traumatic burns. It generally affects the immunocompromised but can also infect the immunocompetent as in hot tub folliculitis. Treatment of P. aeruginosa infections can be difficult due to its natural resistance to antibiotics. When more advanced antibiotic drug regimens are needed adverse effects may result.
It is citrate, catalase, and oxidase positive. It is found in soil, water, skin flora, and most human-made environments throughout the world. It thrives not only in normal atmospheres, but also in low-oxygen atmospheres, thus has colonized many natural and artificial environments. It uses a wide range of organic material for food; in animals, its versatility enables the organism to infect damaged tissues or those with reduced immunity. The symptoms of such infections are generalized inflammation and sepsis. If such colonizations occur in critical body organs, such as the lungs, the urinary tract, and kidneys, the results can be fatal.[4] Because it thrives on moist surfaces, this bacterium is also found on and in medical equipment, including catheters, causing cross-infections in hospitals and clinics. It is also able to decompose hydrocarbons and has been used to break down tarballs and oil from oil spills.[5]P. aeruginosa is not extremely virulent in comparison with other major species of pathogenic bacteria such as Gram-positive Staphylococcus aureus and Streptococcus pyogenes – though P. aeruginosa is capable of extensive colonization, and can aggregate into enduring biofilms.[6]
^"UK Standards for Microbiology Investigations: Identification of Pseudomonas species and other Non- Glucose Fermenters" (PDF). Public Health England. 13 April 2015. Archived (PDF) from the original on 3 July 2022. Retrieved 4 May 2022.
^Spagnolo AM, Sartini M, Cristina ML (July 2021). "Pseudomonas aeruginosa in the healthcare facility setting". Reviews and Research in Medical Microbiology. 32 (3): 169–175. doi:10.1097/MRM.0000000000000271. ISSN 2770-3150. Archived from the original on 2024-01-18. Retrieved 2024-01-18.
^Balcht A, Smith R (1994). Pseudomonas aeruginosa: Infections and Treatment. Informa Health Care. pp. 83–84. ISBN 978-0-8247-9210-7.
^Itah AY, Essien JP (2005). "Growth Profile and Hydrocarbonoclastic Potential of Microorganisms Isolated from Tarballs in the Bight of Bonny, Nigeria". World Journal of Microbiology and Biotechnology. 21 (6–7): 1317–22. doi:10.1007/s11274-004-6694-z. S2CID 84888286.
^Høiby N, Ciofu O, Bjarnsholt T (November 2010). "Pseudomonas aeruginosa biofilms in cystic fibrosis". Future Microbiology. 5 (11): 1663–1674. doi:10.2217/fmb.10.125. PMID 21133688.
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Pseudomonasaeruginosa is a common encapsulated, Gram-negative, aerobic–facultatively anaerobic, rod-shaped bacterium that can cause disease in plants...
Despite the vague description, the type species, Pseudomonas pyocyanea (basonym of Pseudomonasaeruginosa), proved the best descriptor. Like most bacterial...
Hot tub folliculitis, also called Pseudomonal folliculitis or Pseudomonasaeruginosa folliculitis, is a common type of folliculitis featuring inflammation...
in many research labs is preferable to some other Pseudomonas species, such as Pseudomonasaeruginosa, for example, which is an opportunistic pathogen...
Pseudomonas infection refers to a disease caused by one of the species of the genus Pseudomonas. P. aeruginosa is a germ found in the environment and it...
patients with lung infections caused by Pseudomonas (Burkholderia) cepacia and multiresistant Pseudomonasaeruginosa". The Netherlands Journal of Medicine...
aureus. The environmental bacterium and opportunistic pathogen Pseudomonasaeruginosa uses quorum sensing to coordinate the formation of biofilm, swarming...
compounds produced and secreted by the Gram negative bacterium Pseudomonasaeruginosa. Pyocyanin is a blue secondary metabolite, turning red below pH...
the bacterium Pseudomonasaeruginosa, however, iron is not easily accessible in the environment. To overcome this problem, P. aeruginosa produces siderophores...
bacterium Pseudomonasaeruginosa, a major pathogen found in the lungs of some people who have cystic fibrosis. The biofilm and P. aeruginosa have a high...
pneumonia, sepsis, urinary tract infections, malignant otitis externa, Pseudomonasaeruginosa infection, and vibrio infection. It is given by injection into a...
and meropenem also exhibit good activity against most strains of Pseudomonasaeruginosa and Acinetobacter species. The observed activity against these pathogens...
Rhamnolipids are a class of glycolipid produced by Pseudomonasaeruginosa, amongst other organisms, frequently cited as bacterial surfactants. They have...
Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonasaeruginosa, and Enterobacter spp. The acronym is sometimes extended to ESKAPEE...
intermittent episodes of infection. It is usually caused by the bacteria Pseudomonasaeruginosa and is linked to hands being constantly moist or exposed to chemicals...
indicated in the treatment of exacerbations of chronic infection with Pseudomonasaeruginosa in people diagnosed with cystic fibrosis. Tobramycin eye drops (with...
The Pseudomonas exotoxin (or exotoxin A) is an exotoxin produced by Pseudomonasaeruginosa. Vibrio cholerae produces a similar protein called the Cholix...
infections including pneumonia. These may involve bacteria such as Pseudomonasaeruginosa, Klebsiella pneumoniae, or Acinetobacter. It comes in two forms:...
Pseudomonasaeruginosa) and empirical treatment of febrile neutropenia. Cefepime has good activity against important pathogens including Pseudomonas aeruginosa...
Pseudomonas fluorescens is a common Gram-negative, rod-shaped bacterium. It belongs to the Pseudomonas genus; 16S rRNA analysis as well as phylogenomic...
the Pseudomonas quinolone signal (PQS), has been discovered as an intracellular link between the two major quorum sensing systems of P. aeruginosa; the...
strains. Other bacteria like Pseudomonasaeruginosa, E. coli or Proteus spp. are not attacked by maggots, and in case of Pseudomonas even the maggots are in...
The Pseudomonasaeruginosa Hol Holin (Hol Holin) Family (TC# 1.E.20) is a group of transporters belonging to the Holin Superfamily III. The hol gene (PRF9)...
cells. Green, foul-smelling pus is found in certain infections of Pseudomonasaeruginosa. The greenish color is a result of the bacterial pigment pyocyanin...
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