DESCRIPTION OF SPECIES OF STREPTOMYCES 



mi 



Calcium malate agar: ( rrowth pour. Aerial 

 mycelium mouse-gray, with some white. Cal- 

 cium malate digested. 



Nutrient agar: Growth pale yellow. Aerial 

 mycelium white, turning pale gray. Soluble 

 pigmenl pale yellow. Nonchromogenic. 



( rlucose-yeasl ex1 ract-beef-peptone agar: 

 Growth dark brown. Aerial mycelium olive- 

 gray with white. Soluble pigmenl medium 

 brown. 



Starch agar: Growth brownish-orange. 

 Aerial mycelium poor, mouse-gray. Good 

 hydrolysis. 



Gelatin: Growth moderate. Aerial myce- 

 lium buff, some white. No soluble pigment. 

 Poor liquefaction. 



Potato: Growth good, greenish. Aerial my- 

 celium pale olive to smoke-gray to brown. 

 Soluble pigment dark greenish or absent. 



Nitrate reduction: None. 



Antagonistic properties: Produces anti- 

 biotic catenulin. 



Habital : Soil. 



Type culture: ATCC 12,47(5. 



4(k Streptomyces cavourensis Giolitti, 1958 

 (Giolitti, G. Belgian Pat. 560,930, March 18, 

 L958*). 



Morphology: Aerial mycelium produces 

 spirals on certain media. Spores spherical to 

 elliptical. 



Sucrose nitrate agar: Growth yellowish. 

 Aerial mycelium chalky white to yellowish. 

 No soluble pigment . 



Glycerol-asparagine agar: Growth hazel- 

 colored. Aerial mycelium whitish. Soluble 

 pigment taint brown. 



Calcium malate agar: Growth scanty, 

 yellow-brownish. Aerial mycelium scanty, 

 white. Soluble pigment scarce, yellow-brown- 

 ish. 



Xutrient agar: (Irowth orange-brown. 

 Aerial mycelium scanty, chalky white to yel- 

 lowish. Soluble pigment light brown. 



Glucose agar: Growth brown, wrinkled. 



•Supplemented by personal communication. 



Aerial mycelium white-yellowish. Soluble 



pigment dark brown. 



Potato agar: Growth dark brown. Aerial 

 mycelium gray with dark yellow dots. Solu- 

 ble pigment brown. 



Oatmeal agar: Growth light brown, 

 wrinkled. Aerial mycelium gray with brown 



patches. Soluble pigmenl light brown. 



Starch agar: Growth scanty, yellow- 

 brownish. Aerial mycelium scanty, white- 

 grayish. Soluble pigment brownish. Strong 

 hydrolysis. 



Gelatin: Growth scanty, brown, wrinkled. 

 Aerial mycelium scanty, gray. Soluble pig- 

 ment brownish. Liquefaction fairly good. 



Potato: Growth brown with yellow edges, 

 wrinkled. Aerial mycelium grayish. Soluble 

 pigment brown. 



Milk: Growth consists of white to yellow 

 ring around surface. Positive coagulation and 

 peptonization. 



Nitrate reduction: Negative. 



Antagonistic properties: Produce- flaven- 

 somycin, an antibiotic active against fila- 

 mentous and yeast-like fungi, and to a 

 certain extent some gram-positive bacteria. 

 Very active against some insects. 



Type culture: IMRU 3758. 



47. Streptomyces celluloflavus Nishimura 

 it <il., 1953 ( Nishimura, II., Kimura, T., and 

 Kuroya, M. .1. Antibiotics (Japan) 6A: .~>7 

 65, L953). 



Morphology: Sporophores straight with a 

 few flexible, hooked spirals. Spores nearly 

 spherical, 1.0 by ().«) M . 



Sucrose nitrate agar: Growth glossy, de- 

 veloping deej) into medium, later becoming 

 yellow. Soluble pigmenl faint sulfur-yellow. 



Glycerol malate agar: Growth yellow, 

 later turning white to pale olive-buff with 

 blackish center. Aerial mycelium cottony, 

 while, with grayish patches, later turning 

 olive-buff. Soluble pigment yellow. 



Glucose-asparagine agar: Growth cream 

 to yellow. Aerial mycelium scant, cottony, 



