236 



THE ACTIXOMVCETES, Vol. II 



L952 (Lindenbein, \V. Arch. Mikrobiol. 17: 

 361-383, L952). 



Morphology: Substrate mycelium divides 

 completely into coccoidal pieces. Some simi- 

 larity to Nocardia. Aerial mycelium gray, 

 produced in certain media. 



Glycerol nitrate agar: Growth colorless, 

 later becoming deep yellow. No aerial my- 

 celium. Soluble pigment citron-yellow. 



Glucose-asparagine agar: Growth lemon- 

 yellow, later becoming black with yellow 

 reverse. Aerial mycelium white, later ash- 

 gray. Soluble pigment lemon-yellow. 



Glycerol malate agar: Growth dark yel- 

 low. Aerial mycelium white, later ash-gray. 

 Soluble pigment golden yellow. 



Nutrient agar: Growth light brown. No 

 aerial mycelium. Soluble pigment light 

 brown. Melanin-positive. 



Glucose-peptone agar: Growth yellow- 

 brown. Aerial mycelium ash-gray. Soluble 

 pigment yellow-brown. 



Starch-nitrate agar: Growth brownish- 

 yellow. Aerial mycelium gray- white. Soluble 

 pigment lighl yellow. Hydrolysis strong. 



Potato: Growth brownish-yellow. Aerial 

 mycelium gray-white. Soluble pigment 

 lemon-yellow to sulfur-yellow. 



Gelatin: Growth yellow-brown. No aerial 

 mycelium. Soluble pigment dark brown. 

 Liquefaction complete. 



Milk: Growth lichenoid, light yellow. 

 Aerial mycelium gray-white. Soluble pig- 

 ment light brown. Strong peptonization. 



( 'ellulose: No growth. 



Antagonistic properties: None. 



Source: Isolated from the slime of a river 

 bank. 



Remarks: Related to S. flavovirens. 



136. Streptomyces lipmanii (Waksman and 

 Curtis, 1916) Waksman and Ilenrici, 1948 

 (Waksman, S. A. and Curtis, II. E. Soil 

 Sci. I: 123, 1916; 8: 121, 1919). 



Morphology: Sporophores si raight , no spi- 

 rals. Spores oval, 0.8 to 1.1 by 1.0 to 1.5 p. 



Sucrose nitrate agar: Growth abundant, 

 raised, colorless, becoming light brown and 

 wrinkled. Aerial mycelium white, turning 

 gray to dark gray. No soluble pigment. 



Glycerol malate agar: Growth colorless, 

 becoming dark brown. Aerial mycelium 

 mouse-gray. No soluble pigment. 



Glucose-asparagine agar: Growth spread- 

 ing, light yellow. No aerial mycelium. No 

 soluble pigment. 



Nutrient agar: Growth wrinkled, glossy, 

 yellow. No aerial mycelium. No soluble pig- 

 ment. 



Potato: Growth abundant, wrinkled, 

 cream-colored. Aerial mycelium white to 

 gray. Soluble pigment purplish. 



Gelatin: Cream-colored, flaky sediment. 

 Aerial mycelium while-gray. Liquefaction 

 medium to rapid. Melanin-negative. 



Milk: Cream-colored ring. Coagulation 

 and peptonization. 



Starch media: Growth transparent, be- 

 coming dark with age. No aerial mycelium. 

 Hydrolysis medium. 



Cellulose: No or very scant growth. 



[nvertase: Positive. 



Nitrate reduction: Positive. 



Production of II..S: Negative. 



Temperature: Optimum 25°C. 



Antagonistic properties: Good, though 

 some strains show no activity. 



Habitat : Soil. 



Remarks: Ettlinger et al. (1958) consider 

 this organism as a strain of S. griseus. 

 Tresner and Danga reported that their 

 strain produced a grayish-yellow-buff aerial 

 mycelium. Kra-silnikov (194'.)) considered it 

 as a variety of . 1 . viridis. 



Type cult me: [MRU 3331. 



lo7. Streptomyces loidensis (Millard and 

 Burr, L926) Waksman (Millard, W. A., and 

 Burr, S. Ann. Appl. Biol. 13:580, 1926). 



Morphology: Sporophores straight and 

 spiral-forming. Spores cylindrical to spheri- 

 cal, 0.9 to 1.0 by 0.9 to 0.95 m- 



