Nonfermentative Bacteriae

Question 1

Which is the most important species in pseudomonas?

Answer 1

P. Aeruginosa

Question 2

How can we differentiate Pseudomonas spp from enterobacteria?

Answer 2

By using cytochrome oxidase

Question 3

Virulence factors of Pseudomonas

Answer 3

Structural factors, enzymes, toxins
Some strains produce toxins and pigments

Question 4

Which bacteria has one of the largest bacterial genomes?

Answer 4

Pseudomonas aeruginosa

Question 5

Temperature range of p. Aeruginosa

Answer 5

4-42 C

Question 6

Colony characteristic of P. Aeruginosa

Answer 6

Production of distinctive blue pigment „pyocyanin“

Question 7

P. Aeruginosa infections

Answer 7

• pulmonary infections
• skin and soft tissue inf: burn wounds, folliculitis
• ear inf: external otitis
• eye inf: corneal ulcers, pseudomonas keratitis
• bacteremia
• endocarditis

Question 8

Most important human pathogens of Burkholderia species

Answer 8

B. Cepacia complex -> lung infections, CGD, UTI in catheterized, Septicemia

B. Pseudomallei -> localized suppurative cutaneous inf or pulmonary disease, biological weapon

Question 9

Pseudomonas are oxidase

Answer 9

Positive

Question 10

Acinetobacter are oxidase

Answer 10

Negative

Question 11

Classification of acinetobacter

Answer 11

Glucose oxidizing -> A. Baumannii

Glucose nonoxidizing -> A. Haemolyticus

Question 12

Infections caused by acinetobacter

Answer 12

Inf in resp tract, UT, Wounds
Septicemia