224 



THE ACTINOMYCETES, Vol. II 



e ■ ^Kjtr.. 



Figure 40. Sporophores of S. griseoplanus (Reproduced from: Backus, E. J. et al. Antibiotics & 

 Chemotherapy 7: 537, 1057). 



Starch agar: ( Irow 



ish. Aerial mycelium 



Potato plug: Grow 



rial mycelium scant, 



plug browned. 



Milk: No growth. 



Cellulose: No grow 



Production of H 2 S: 



Carbon utilizatioi 



with ammonium suit' 



gen. With aspartic ; 



L-arabinose, D-xylos< 



moderate growth on 



trehalose, and salicii 



D-mannitol, /-inositol. 



th colorless to yellow- 

 scant, white. 

 th light brownish. Ae- 

 white to gray. Apex of 



th. 



Negative. 



: Extremely limited. 



ite as source of nitro- 

 icid, organism utilizes 

 , and glucose. Fair to 



lactose, D-raffinose, n- 

 l. Sucrose, D-fructose, 



idonitol, D-melezitose, 



L-rhamnose, esculin,n-melibiose, and dextrin 

 utilized poorly or not at all. 



Antagonistic properties: Produces anti- 

 biotic alazopeptin. 



Habitat : Grassland soil. 



Remarks: This organism is closely related 

 to ,s. flavogriseus. 



114. Streptomyces griseoruber Yamaguchi 

 and Saburi, 1955 (Yamaguchi, T. and Sa- 

 buri, V. J. Gen. Appl. Microbiol. 1: 201-235, 

 1955). 



Morphology: Aerial hyphae produce open 

 and closed spirals on sucrose nitrate and on 

 starch agars. Spores short, cylindrical, 0.5 to 

 ().<) by ().*) to 1.2 fx. 



