208 



THE ACTINOMYCETES, Vol. I] 



nose, fructose, galactose, sucrose, maltose, 

 lactose, raffinose, inulin, mannitol, inositol, 

 sodium acetate, sodium citrate, sodium 

 succinate, dextrose, mannose, starch, dex- 

 trin, and glycerol. Does not utilize rhamnose, 

 sorbitol, dulcitol, salicin, phenol, w-cresol, 

 sodium formate, sodium oxalate, sodium 

 tartrate, or sodium salicylate. 



Antagonistic properties: Produces anti- 

 fungal agent hlipin, of the polyene type. 



Habitat : Philippine soil. 



Type culture: LMRU 3781. 



79. Streptomyces fimbriatus (Millard and 

 Burr, 1926) Waksman and Henrici, P.)48 

 (Millard, W. A. and Burr, S. Ann. Appl. 

 Biol. 13: 580, 1926). 



Morphology: Sporophores form spirals 

 with three or more turns. Spores cylindrical 

 to oval, 1.2 to 0.9 by 0.9 m- 



Sucrose nitrate agar: Growth gray. Aerial 

 mycelium abundant, white to gray. Soluble 

 pigment cream-colored. 



Glucose-asparagine agar: Growth very 

 good. Aerial mycelium white to mouse-gray. 



Nutrient potato agar: Colonies gray to 

 blackish, flat, raised in center. Aerial myce- 

 lium a lew specks of white. Soluble pigment 

 golden brown. 



Potato: Growth mouse-gray. Aerial myce- 

 lium on dried portions of growth scant, white 

 to mouse-gray. Pigment around growth 

 black. 



Gelatin: Growth good. Aerial mycelium 

 white. Liquefaction slow. Soluble pigment 

 reddish. 



Milk: Growth good. No coagulation and 

 no hydrolysis. 



Starch: Positive hydrolysis. 



Tyrosinase reaction: Strongly positive. 



Nitrate reduction : Positive. 



Habitat: Common scab of potatoes. 



80. Streptomyces fimicarius (Duche, L934) 

 Waksman and Henrici, 1948 ( Duche, .1. Pes 

 actinomyces du groupe albus. P. Lechevalier, 

 Paris, L934). 



Morphology: Sporophores long, tuft- 

 forming; no spirals. Spores cylindrical (Hoff- 

 mann, 1958). 



Sucrose nitrate agar: ( irowth at first color- 

 less, later yellowish to red-brown; reverse 

 orange-colored. Aerial mycelium light gray 

 with yellowish tone. Soluble pigment faint 

 yellowish. 



Glucose-asparagine agar: Growth cream- 

 colored with whitish aerial mycelium; re- 

 verse cream-colored to slight ocher. 



Nutrient agar: Growth limited, cream- 

 colored with white aerial mycelium; reverse 

 yellowish. 



Potato: Growth cream-colored to yellow- 

 ish to dark brown. Aerial mycelium gray. 

 Soluble pigment reddish-brown. 



Gelatin: Punctiform colonies with whitish 

 aerial mycelium. Soluble pigment reddish. 

 Liquefaction medium. Melanin-negative. 



Milk: (irowth colorless, becoming covered 

 with whitish aerial mycelium. Slow pep- 

 tonization. Pigment rose, changing to brown- 

 ish-red. 



Starch: Hydrolyzed. 



Coagulated serum: Growth cream-colored. 

 Aerial mycelium whitish. Liquefaction rapid. 



Cellulose: No growth. 



Tyrosine medium: (irowth white, with 

 yellowish reverse. Soluble pigment yellowish. 



Production of H 2 S: Negative. 



Antagonistic properties.- Positive. 



Remarks: Krassilnikov (1949) considers 

 this organism as a variety of .1. chromogenes. 



81. Streptomyces flaveolus (Waksman) 

 Waksman and Henrici, 1948 (Waksman, 

 S. A. No. 168. Soil Sci. 8: 134, PIP)). 



Morphology : Sporophores monopodia lly 

 branched. Short, closed and open spirals 

 produced on all media. Spores oval to 

 elliptical, 0.S by 1.2 n, covered with long, 

 fine haii - . 



Sucrose nitrate agar: (irowth light sulfur- 

 yellow, turning cadmium-yellow. Aerial 

 mycelium white to ash-gray. Soluble pig- 

 ment yellow. 



