Term
Enterobacteriaceae
~Salmonella, Shigellla, Proteus
~Klebsiella, Enterobacter, Serattia
-Respiration
-capsule
-motility
-oxidase
-nitrate
-fermentation
-virulence factors
-diseases
-notes |
|
Definition
Respiration: aerobic/ facultative anaerobe
Capsule: yes
Motility: yes
Oxidase: yes
Nitrate: yes
Ferment: glucose (1st group); glucose/lactose (2nd group)
Virulence factors:
-fimbrae
-LPS
-Heat stabile, labile toxins
-Shiga toxin
Diseases:
- diarrhea
- UTI
- pneumonia
- neonatal sepsis and meningitis
Notes:
- Selective Medias
~MacConkey agar: turns red with lactose fermenters
~ eosin methylene blue agar: turns blue with lactose fermenters
~ oxidase test: separates from other Gram (-) rods |
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Term
Pseudomonas aeruginosa
-Respiration
-capsule
-motility
-oxidase
-nitrate
-fermentation
-virulence factors
-diseases
-notes |
|
Definition
Respiration: strict aerobe
Capsule: yes
Motility: yes
Oxidase: yes
Nitrate:
Ferment: no
Virulence factors:
-capsule, glycocalyx
-elastase, alkaline protease
-cytotoxin, hemolysin
-pyocyanin, pyochelin (siderophore)
-exoenzyme S, exotoxin A
Diseases:
- opportunistic nosocomial pathogen
Notes:
-resistant to many antibiotics |
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Term
Burkholderia cepacia
-Fermentation
-Diseases
-Notes |
|
Definition
Fermentation: no
Diseases:
- opportunistic infections (pts with CGD or cystic fibrosis)
- nosocomial infections
Notes:
- resistant to aminoglycosides
- susceptible to TMP/SMX
- catalase + |
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Term
Burkholderia mallei
-Fermentation
-Diseases
-Notes |
|
Definition
Fermentation: no
Diseases: respiratory tract infections in animals
Notes:
-obligate parasite of animals |
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Term
Burkholderia pseudomallei
-Fermentation
-Diseases
-Notes |
|
Definition
Fermentation: no
Diseases:
-meliodosis
-TB/glanders-like disease in humans and animals
Notes:
-seen commonly in troops coming home from Vietnam |
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Term
Stenotrophomonas maltophilia
-Motility
-Oxidase
-Fermentation
-Diseases
-Notes |
|
Definition
Motility: yes
Oxidase: no
Fermentation: no
Diseases:
-opportunistic nosocomial pathogens
~pneumonia, UTI, bacteremia
Notes:
-formerly Pseudomonas maltophilia
-shown as raised red colonies on blood agar |
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