Table 2.
Culture characteristics of the Streptomyces sp. strain NEAE-42
| Medium | Color of | Growth | ||
|---|---|---|---|---|
| Aerial mycelium | Substrate mycelium | Diffusible pigment | ||
| ISP medium 2 (Yeast extract -malt extract agar) |
White to olive beige | Brown | Faint brown | Excellent |
| ISP medium 3 (Oatmeal agar) |
Olive green | Olive brown | Faint brown | Excellent |
| ISP medium 4 (Inorganic salt-starch agar) |
Olive green | Olive brown | Faint brown | Excellent |
| ISP medium 5 (Glycerol asparagines agar) |
Olive beige | Brown | Faint brown | Excellent |
| ISP medium 6 (Peptone-yeast extract iron agar) |
Faint beige | Faint yellowish brown | Non-pigmented | Excellent |
| ISP medium 7 (Tyrosine agar) |
Faint beige | Faint brown | Non-pigmented | Excellent |
The substrate mycelium pigment was not pH sensitive when tested with 0.05 N NaOH or 0.05 N HCl
The diffusible pigment was pH sensitive when tested with 0.05 N NaOH or 0.05 N HCl, yellow in acidic, brown in alkaline