Microbio culture types Flashcards
1
Q
MacConkey agar
A
grows many enteric bacteria
- it’s a bile salt-containing agar that restricts growth of GP organisms
- lactose fermenting organisms will appear purple
2
Q
Thayer-Martin VCN medium
A
grow Neisseria species while prohibiting growth of other organisms
- heated blood agar
- vanco (to prevent GPs)
- colistin/polymixin (to prevent GN’s)
- nystatin (to prevent yeast)
3
Q
Blood agar w/bile and hypertonic saline
A
cultures enterococci
- used to differentiate enterococci and nonenterococcal Group D streptococci
4
Q
Bordet-Gengou medium
A
cultures Bordetella pertussis
5
Q
Cysteine-tellurite agar
A
grows corynebacteria diphtheriae
6
Q
enrichment media
- def
- examples
A
- media w/GFs needed to grow
2. X and V factors for Haemophilus or Anaerobic conditions for clostridium
7
Q
differential media
- def
- examples
A
- differentiates by metabolic and biochemical properties
- MacConkey and EMB agars used to culture enteric organisms
- organisms that ferment lactose appear purple on MacConkey and black on EMB
8
Q
Reducing media
1. def
A
- used to culture organisms that reduce iron or sulfur as part of their metabolic pathways