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13 Cards in this Set

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Pseudomonas aeriginosa is known as...

Opportunistic pathogen and recently has been labeled as a global pathogen.

Pseudomonas living conditions

Love living in in a nosocomial environment.


Optimal temp. 37° C


Range 0-44° C


Versatile when it comes to carbon and nitrogen sources

Bioremediation

Waste management technique that involves the use of organisms to remove or neutralize pollutants

Burkholderia cepacia

Important colonizers of the cystic fibrosis lung.


When it is present along with P.a it causes fatal necrotizong pneumonia.

Polysaccharide alginate

One of the major components of the biofilm in isolates from the lungs of cf patients.

Label the the 5 arrows top to bottom

1. Biofilm


2. Bacterial Invasion


3. Tight junction


4. Opening of a tight junction


5. Translocated bacteria

P. aeruginosa colonies are distinguished from other pseudomonads by

Water soluble pyocyanin and pyoverdin. It gives them a blue-green and yellow-green color on agar media.

Encounter pseudomonas

Entry pseudomonas

Spread and multiplication

Many posses antiphagocytic polysaccharide slime layer and make cytotoxic exotoxins.


Obtaining iron is vital and difficult


Produce siderophores iron binding compunds.

P. aeruginosa

●hypotension and shock


●secrete exotoxin A


●several proteases degrade host mm


●type 3 secretion delivers virulence factors


●damage local tissue allow organisms to persist


●damage needed for dissemination

Diagnosis prevention treatment

Pseudomonas characteristics

Gram - rods


Catalase +


Oxidase +


Polar flagella