DESCRIPTION OF SPECIES OF STREPTOMYCES 205 



Cellulose: Growth slow or none. Morphology: Substrate growth consists 



[nvertase: Negative. of long hyphae. Aerial mycelium abundant, 



Nitrate: Reduction slight. gray. Sporophores broom-shaped. Spores 



Pigment : Soluble in water, no1 in organic egg-shaped to spherical, smooth, 0.8 to 1.0 



solvents. by 0.6 to 0.7 y.. 



Temperature: Optimum 30 °C. Glycerol nitrate agar: Growth postulate 



Antagonistic properties: Produces sarko- lighl brown. Aerial mycelium sparse, white- 



mycin (Okami and Suzuki). gray, changing to ash-gray. Soluble pig- 

 Habitat: No1 very common in soil. menl brown. 

 72. Streptomyces eurocidicus Okami ei al, x ""-i<'"' agar: Growth brownish-yellow. 



l'.t:»l (Okami, Y., CTtahara, R., Nakamura, A, ' ml 1,1 . v, ' , ' li " 1 " ash-gray. Soluble pigmenl 



dish 



[■own. 



S.,and Umezawa, II. .1. Antibiotics (Japan) 

 7A: 101 L02 1954). Glucose-asparagine agar: Growth thin, 



Morphology: Aerial mycelium short, whitish • V(,|lmv - Arml mycelium white-gray 

 branched. Sporophores straight, without to a sh-gray. Soluble pigmenl chestnut- 

 brown. 



Starch agar: ( rrOwth golden yellow. Aerial 



spirals; sometimes atypical verticils are 

 produced. 



Glycerol nitrate agar: Growth colorless mycelium velvety, a1 first snow-white, later 

 to yellowish-brown. Aerial mycelium scant, - r;, - v - Soluble pigmenl lighl brown. Rapid 



hin, w hite. No soluble pigmenl . 



hydrolysis. 



Glucose-asparagine agar: Growth colorless Gelatin: Growth sparse. Soluble pigmenl 



to yellowish-brown. Aerial mycelium white dark browiL Ra P id liquefaction, 



with yellowish tinge. Soluble pigmenl absenl Potato: Growth lichenoid, brownish- 



or slightly brown yellow. Aerial mycelium milky-white, be- 



Nutrienl agar! Growth yellowish-brown coming ash-gray. Soluble pigmenl brownish 



to black. Soluble pigment brown. Melanin- to pitch-black, 



positive i ?) Milk: Brown surface ring. Aerial mycelium 



Starch: Good hydrolysis. ash-gray. Soluble pigmenl dark brown. 



Potato: Growth wrinkled, brownish-yel- Coagulation and peptonization positive, 



low. Aerial mycelium absenl or thin white. Carbon utilization: Xylose, arabinose, 



No soluble pigment. fructose, galactose, saccharose, maltose, 



Gelatin: Growth yellowish-brown. Soluble lactose ' manmtol > salicio well utilized. 



pigmenl brown. No liquefacti 



Rhamnose, inulin, sorbitol, dulcitol, meso- 



Muk: Surface ring yellowish-brown, inositol not utilized. Some strains use acetate, 



NT .. N1 , .. citrate, and succinate. 



Nitrate: No reduction. 



r r ~ . , - 1 emperature: Poor growth al 18 C: very 



1 vrosinasc: Doubtful. , , , ,' 



good growth at 30 C; good growth hut do 



Antagonistic properties: Produce 

 antifungal substance, eurocidin, and 

 bacterial substances terl iomycin and a 



aerial mycelium at 58 C. 



Antagonistic properties: Produces a basic 

 antibiotic, angolamycin, related to erythro 

 mycin. 

 73. Streptomyces eurythermusCorb&zetal., Habitat: Soil. 

 L955 (Corbaz, P., Ettlinger, P., Gaumann, Remarks: Closely related to S. anti- 



!•:., Keller-Schierlein, W., Neipp, P., Prelog, / "'"/"'"*- 



V., Reusser, P., and Zahner, IP Helv. Chim. 74. Streptomyces exfoliatus (Waksman and 

 Acta38: 1202 L209, 1955). Curtis, L916) Waksman and Henrici, L948 



