Pseudomonas aeruginosa

Question 1

Pseudomonas aeruginosa characteristics

Answer 1

✓ gram-negative
✓ aerobic
✓ non-spore forming rod
✓ haemolytic

Question 2

Pseudomonas aeruginosa grows on what agar and temperature?

Answer 2

Sheep blood agar at 37 °C

Question 3

This species gives rise to a
variety of colony types.
Most of the colonies are smooth, but varying grades of roughness may occur.

Answer 3

Pseudomonas aeruginosa

Question 4

This bacteria have colonies with a “beaten-copper“ surface and slightly irregular edge

Answer 4

Pseudomonas aeruginosa

Question 5

Capsulated strains of P. aeruginosa,
usually isolated from patients with this disease, produce large, mucoid colonies.

Answer 5

Pneumonia

Question 6

On routine blood agar, the
typical color of P. aeruginosa colony is what?

Answer 6

pigmented (gray/gray-white with a yellowish tint through green to red or brown)

Question 7

Pigment production of Pseudomonas aeruginosa is usually better visible and more profound on transparent media, give an example.

Answer 7

Mueller-Hinton agar

Question 8

Pigments produced by P. aeruginosa

Answer 8

✓ Pyocyanin (blue-green)
✓ Puoverdin (greenish-yellow)
✓ Pyorubin (red)
✓ Pyonelanin (dark brown)

Question 9

Pseudomonas aeruginosa is capable of producing a blue phenazine pigment called

Answer 9

pyocyanin

Question 10

a reddish brown pigment

Answer 10

pyorubin

Question 11

a reddish brown pigment

Answer 11

pyorubin