Cultural characteristic Aerial mycelium/substrate mycelium (Colour)
ISP 1 Grey/brown
ISP 2 White/yellow
ISP 2 (with 5% NaCl) Yellow/yellow
ISP 3 Yellow/yellow
ISP 4 Grey/white
ISP 4(addition of yeast ectract) Grey/white
ISP 4( addition of glucose) Grey/white
ISP 5 Yellow/yellow
ISP 6 Grey/white
Table 4: Cultural characteristics of Streptomyces sp. S2.