Colony characteristics of bateria in CLED
(Cysteine Lactose Electrolyte Deficienct) Media

1. Escherichia coli

Colonies are large, elevated yellow, opaque, with a center slightly darker. The agar is yellow .

2. Enterobacter spp.

Colonies are similar to E. coli but mucoid and larger in size. Colour of agar is yellow.

3. Klebsiella spp.

Colonies are large, yellow or yellowish-white. Highly mucoid and elevated. It can present a light blue shade. Yellow agar.

4. Proteus spp.

Colonies are Blue, translucent with irregular edges. Slightly elevated. Pseudomonas:

5. Pseudomonas spp

Colonies are Pale bluegreen. Typical matte surface and irregular edges. "Sweet" odor.

6. Salmonella, Shigella and Serratia

Blue-green agar.

7.Providencia

Colonies are from blue to intense blue.

8.Streptococcus faecalis

Colonies are Very small, from 0.4 mm, yellow, opaque. Colour of agar is yellow.

9.Staphylococcus spp.

Colonies are small, yellow intense colors, opaque. Colour of agar turns yellow.

10.Corynebacterium spp.

Colonies are very small, gray.

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