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Flashcards in Agar and Organism Deck (26):
1

Bile esculin agar

Enterococcus

2

Blood agar: α-hemolytic

Strep. Pneumo, Viridans Strep, Enterococcus

3

Blood agar: β-hemolytic

Ton’s of things: S. aureus, S. pyogenes, S. agalactia, Staph lugdunensis(coagulase negative and B-hemolytic makes it unique)

4

Blood agar: γ-hemolytic

Enterococcus

5

Blood agar: CAMP positive

Strep. Agalactiae, Listeria

6

Bordet-Gengou agar

B. pertussis

7

Buffered charcoal yeast extract agar

Legionella

8

Chocolate agar – with factors V and X

H. influenza

9

Chocolate agar – with factors X only

H. ducreyi

10

Lowenstein-Jensen agar

M. tuberculosis

11

MacConkey agar

E. coli and K. pneumonia

12

Regan-Lowe media

B. pertussis

13

Sabouraud dextrose agar

Fungi

14

Sorbitol MacConkey agar

All E.coli, except EHEC can’t ferment sorbitol

15

Thayer-Martin agar

N. gonorrhoeae or meningitides

16

Thiosulfate citrate bile salts sucrose agar

Vibrio

17

Eaton medium

M. pneumonia

18

Egg yolk agar

Clostridium

19

Eosin Methylene Blue (EMB) agar

E. coli – grows metallic green colonies

20

Hektoen enteric agar

Salmonella and Shigella

21

Loeffler media

C. diphtheria

22

Mannitol salt agar

S. aureus

23

Tellurite media

C. diphtheria

24

Thioglycolate broth

Depends on where the growth in the broth takes place. If only at top = aerobe. Only at bottom = anaerobe. If there is growth diffusely throughout the tube = facultative anaerobe

25

Triple Sugar Iron (TSI) agar

If the organism produces hydrogen sulfide (Salmonella or Proteus) then agar turns black

26

Xylose-Lysine-Deoxycholate (XLD) agar

Colonies with black centers = Salmonella.

Shigella colonies are red.