DESCRIPTION (>!■• SN.CIKS <>F STREPTOMYCES 



24! > 



low )o carmine-red. Aerial mycelium abun- 

 dant, white. Soluble pigment somewhat 

 carmine-red. 



Calcium malateagar: Growth lighl yellow 

 to light carmine. No aerial mycelium. 



Starch agar: Growth light yellow-red to 

 carmine-red. Aerial mycelium abundant, 

 white. Limited hydrolysis. 



Potato: Growth lighl brown. Aerial myce- 

 lium powdery, chalk-white. Melanin-nega- 

 tive. 



Gelatin: Growth carmine-red. Aerial my- 

 celium sparse. Trace <>i' liquefaction. Xo 

 soluble pigment. 



Milk: Pellicle light yellow. Aerial myce- 

 lium sparse. Coagulation limited; no pep- 

 tonization. 



Antagonistic properties: Produces anti- 

 biotic cinerubin. 



Habitat: Soils in England and Germany. 



Hi". Streptomyces niveus Smith et al, 1956 

 (Smith, C. G., Dietz, A., Sokolski, W. T., 

 and Savage, G. M. Antibiotics A: Chemo- 

 therapy 6: 135-142, L956). 



Morphology: Sporophores straight at the 

 base, corkscrew-coiled at tip, occur in clus- 

 ters and bear oblong spores. 



Sucrose nitrate agar: Growth cream-col- 

 ored. Aerial mycelium white. Soluble pig- 

 ment yellow. 



Calcium malate agar: Growth cream- 

 colored. Aerial mycelium white. Soluble 

 pigment yellow. 



Nutrient agar: Growth cream-colored. 

 Aerial mycelium trace, gray-white. Soluble 

 pigment yellow. 



Gelatin: Growth good. Liquefaction par- 

 tial. Xo soluble pigment. 



Nutrient starch agar: Growth yellow. 

 Aerial mycelium cream-pink. Hydrolysis 

 good. 



Tyrosine agar: Soluble yellow pigment. 



Milk: Ring on surface; flocculenl growth 

 at bottom. Positive peptonization. 



Production of IPS: Negative. 



Carbon utilization: D-xylose, D-arabinose, 



rhamnose, D-fructose, D-galactose, D-glucose, 

 D-mannose, maltose, sucrose, lactose, cello- 

 biose, rail inose, dextrin, in ul in, soluble si arch, 

 glycerol, dulcitol, n-mannitol, D-sorbitol, in- 

 ositol, salicin, sodium formate, sodium ox- 

 alate, sodium tartrate, sodium acetate, so- 

 dium citrate, and sodium succinate utilized. 

 Phenol, cresol, and sodium salicylate not 

 utilized. 



Nitrate: No reduction. 



Antagonistic properties: Produces strepto- 

 nivicin, a form of novobiocin. 



Habitat: Soil. 



Remarks: According to Kuroya et al. 

 (1958), this organism is related if not identi- 

 cal to S. griseoflaviis. 



168. Streptomyces noboritoensis Isono et 

 al., 1957 (Isono, K., Yamashita, S., Tomi- 

 yama, V., Suzuki, S., and Sakai, H. J. Anti- 

 biotics (Japan) 10A: 21-30, 1957). 



Morphology: Aerial mycelium long and 

 wavy; no regular spirals. 



Sucrose nitrate agar: Growth colorless. 

 Aerial mycelium slight. Soluble pigment 

 absent or pale yellow. 



Glucose-asparagine agar: Growth pale 

 brown to dark brown. Aerial mycelium 

 pale violet-gray. Xo soluble pigment or 

 slightly brownish. 



Nutrient agar: Growth fiat, pale gray, 

 smooth and restricted. No aerial mycelium. 

 Soluble pigment dark red-brown. 



Starch agar: Growth dry, wrinkled, pale 

 grayish-brown. Aerial mycelium pale-gray, 

 coi tony. Weak diastatic action. 



Gelatin: Growth dark brown. Soluble pig- 

 ment dark brown. Liquefaction absent or 

 slight. 



Potato: Growth flat, wrinkled, black. 

 Aerial mycelium grayish-white in some 

 strains. Color of plug black. 



Carbon utilization: Glucose, lactose, man- 

 nitol, trehalose, and ramnose well utilized. 

 Utilization of arabinose, inositol, salicin, 

 and xylose limited. Rhamnose and sucrose 

 no1 utilized. 



