118 ACTINOMYCETES 



Nutrient broth: Colonies large, spherical, white. No soluble pigment. 



Nitrate: Reduction. 



Temperature: Grows well at 37°C. 



Habitat: Isolated from mound scab of mangels. 



138. Streptomyces listeri (Erikson) Waksman and Henrici. (Erik- 

 son, D., Med. Research Council Spec. Rept. Ser. 203, 1935, 36.) 



Vegetative growth: Long slender filaments, many loosely wavy, forming 

 a dense spreading mycelium which rapidly grows into a membrane on most 

 media. 



Aerial mycelium: Very slow and inconstant in appearance, short and 

 straight, conidia oval. 



Nutrient agar: Growth smooth, round, moist, cream-colored, margin de- 

 pressed, center elevated, closely adherent; becoming umbilicated, with a 

 myceloid margin. 



Glucose agar: Cream-colored, glistening, pinpoint colonies; later aggre- 

 gated in convoluted skin. 



Potato : Abundant, dull, brownish, wrinkled skin with white aerial myce- 

 lium; large, stellate, fluffy, white colonies in liquid at base. 



Gelatin: Liquefaction slight; round white surface colonies; after 45 days, 

 confluent skin, almost completely liquefied. 



Milk: Coagulation. No change in reaction. 



Glycerol agar: Growth abundant, moist, cream-colored, colonies ele- 

 vated, piled up; aerial mycelium powdery, white. After 20 days, skin deeply 

 buckled; colorless with exuded drops. 



Calcium agar: Growth poor, a slight biscuit-colored membrane. 



Potato agar: After 1 week, extensive growth, colorless submerged col- 

 onies, warted surface; dirty pink coloration after 2 weeks; scant white 

 aerial mycelium after 4 months. 



Dorset's egg medium: No growth. 



Blood agar: Small, round, cream-colored colonies, smooth translucent 

 surface; no hemolysis. 



Serum agar: Small, irregular, moist, cream-colored colonies, tending to 

 be heaped up; later somewhat transparent. 



Glucose broth: Small, white, nodular colonies; later abundant flocculi. 



Nutrient broth: Small, round, white colonies in sediment. 



Source: From human material. Strain from Lister Collection. 



139. Streptomyces galtieri (Goret and Joubert) comb. nov. (Goret, P., 

 and Joubert, L., Actinomycetales, Ann. Parasitol. Humaine et Compared, 

 26, 1951, 118-127.) 



