DESCRIPTION OF SPECIES OF STREPTOMYCES 207 



Morphology: Sporophores monoverticil- Starch agar: ( rrowth same as on synthetic 



late or biverticillate. Pigment granules agar. Aerial mycelium white or while with 



presenl in mycelium, lighl brownish-salmon-pink tinge. Hydrol- 



Sucrose nitrate agar: Growth faint pink. ysis. 



Aerial mycelium pink. No soluble pigment. Gelatin: Growth yellowish. Aerial myce- 



Calcium malate agar: Growth pink, linm in form of white patches. No soluble 



Aerial mycelium trace, pink. No soluble pig- pigment. Medium liquefaction, 



ment. Potato plug: Growth cream-colored, wrin- 



Glucose-asparagine agar: Growth pink. kled. No aerial mycelium. No soluble pig- 

 Aerial mycehum pink. Soluble pigmenl pale ment. 

 yellow. Milk: Growth yellowish, surface ring. 



Starch nutrient agar: Growth red-pink. Aerial mycelium white, scant. No soluble 



Aerial mycelium pink. Soluble pigmenl tan. pigment. Coagulation and peptonization. 



Casein digest-beef extract agar: Growth Blood agar: Growth brownish, wrinkled. 



red. Aerial mycelium pink. No aerial mycelium. Hemolysis none or 



Gelatin: Liquefaction medium. Soluble weak. 



pigmenl brown. Antagonistic properties: Produces caryo- 



Milk: Growth brown to cream-pink, my cin, an antitumor substance. 



Aerial mycelium trace pink. No coagulation. 78 _ S treptomyces filipinensis Ammann et 



N,) Peptonization. „ ; ,,,-- (AmmaM1) Ai> Gottlieb, 1)., Brock, 



Production ol E 2 S: Positive. T D>) r . lrter> H . E>> and Whitfield, G. B. 



Starch: llydrolyzed. Phytopathology 15: 559 563, L955). 



Carbon utilization: I blues various carbo- Morphology: Sporophores form spirals 



hydrates, glycerol, inositol, starch, certain that vary from open to tightly closed. Spores 



organic acids (acetate, citrate, succinate); round to oval. 



does not utilize rf-xylose, rhamnose, lactose, Sum)>( . m1i , ;(t(> agaJ . GrQwth ( . X( . (l | 1( . n , 



Z-arabmose, formic, oxalic, and tartaric acids. light V(1 „ mv _ Ama , mV( ,,| mm ( . nl , ((||V- 



Antagonistic properties: Produces an..- wh ite, turning gray. Soluble pigmenl slightly 



biobc fervenulin, active agamsl various ye Uow. Colorless drops of exudate on myce- 



microbes and tumors. [[utd 



Habitat: SoU in California. Starch-nitrate agar: Growth excellent. 



77. Streptomyces filamentosus Okami et al., Aerial mycelium velvety, white, turning 



1953 (Okami, Y., Okuda, T.. Takeuchi, T., gray. No soluble pigment. Hydrolysis weak. 



Nitta, K., and Umezawa, II. J. Antibiotics Glycerol-asparagine agar: Growth excel- 



( Japan) 6A: 153 157, 1!)."):!). lent. Aerial mycehum white, turning gray. 



.Morphology: Sporophores straight, long, Soluble pigmenl slightly yellow. 



without spirals. Spores oval to elliptical. Nutrient agar: Growth very poor, lighl 



Sucrose nitrate agar: Growth colorless. buff. No aerial mycelium. Soluble pigmenl 



Aerial mycelium abundant, cottony, white, brown. 



Xo soluble pigment . Gelatin: Slow but definite liquefaction, 



Glucose-asparagine agar: Growth color- stratiform type. Soluble pigmenl brown. 



less. Aerial mycelium abundant, white with Potato: Growth good. No aerial mycelium, 



pinkish-orange tinge or brownish to almosl Soluble pigmenl purple to black. 



salmon-pink tinge. No soluble pigment. Nitrate reduction: Little, if any. 



Nutrient agar: Growth colorless. Aerial Production of H 2 S: Positive, 



mycelium thin, white. No soluble pigment. Carbon utilization: Utilizes xylose, arabi- 



