THE ACTINOMYCETES, Vol. II 



fructose, sucrose, lactose, raffinose, mannitol, 



and inositol. 



Habitat: Soil in Japan. 



187. Streptomyces phaeoviridis Shinobu, 

 1957 (Shinobu, R. Mem. Osaka Univ., B. 

 Nat. Sci. 6: 67-70, 1957). 



Morphology: Growth monopodial, hyphae 

 0.4 to 0.6 n in diameter, no fragmentation. 

 Aerial mycelium short; monopodial branch- 

 ing; some spirals, sinistrorse, 1 to 3 turns. 

 Spores elliptical, 0.6 to 0.8 fj,. 



Sucrose nitrate agar: Growth pale yellow 

 to dark brown. Aerial mycelium scant, 

 brownish-white. Soluble pigment yellow to 

 brown to dark blue. 



Malate-glycerol agar: Growth yellowish- 

 brown to dark brown. Aerial mycelium scant, 

 white to brownish-white. Soluble pigment 

 brown to dark brown with blue tinge. 



Glucose-asparagine agar: Growth thin 

 brown to yellow-orange; aerial mycelium 

 scant, white to brownish-white. Soluble 

 pigment pale brown to yellow-orange. 



Nutrient agar: Growth thin, yellow-orange 

 to brown. No aerial mycelium. Soluble pig- 

 ment brown to dark red with purple tinge. 



Potato: Growth poor, pale brown. No 

 aerial mycelium. Soluble pigment uncertain, 

 probably pale brown. 



Milk: Growth good, pale yellow, partially 

 blue, sometimes grayish-green. Soluble pig- 

 ment absent or pale orange. Coagulation 

 and peptonization. 



Tyrosinase reaction: Negative. 



Gelatin : Liquefaction variable. 



Diastase: Strong. 



Nitrate reduction: Negative. 



Cellulose: No growth. 



Carbon sources: Utilizes xylose, rhamnose, 

 sucrose, fructose, raffinose, and mannitol; 

 lactose and inositol uncertain. 



Habitat: Soil in .Japan. 



188. Streptomyces pilosus Ettlinger et <il., 

 L958 (Ettlinger, L., Corbaz, R., and Hiitter, 

 R. Arch. Mikrobiol. 31: 347, 1958). 



Morphology: Sporophores monopodially 

 branched, with long, regular, open spirals. 

 Spores covered with fine long hair. 



Glycerol nitrate agar: Growth yellow to 

 yellow-brown. Aerial mycelium powdery, 

 chalk-white to gray-blue. 



Glucose-asparagine agar: Growth light 

 yellow. Aerial mycelium powdery, white to 

 ash-gray. 



Calcium malate agar: Growth white-yel- 

 low to yellow-brown. Aerial mycelium white- 

 yellow to white-gray. 



Starch agar: Growth yellow-brown to red- 

 yellow. Aerial mycelium scant, white to 

 ash-gray. Limited hydrolysis. 



Gelatin: Growth yellow-brown. Aerial 

 mycelium powdery, chalk-white. Liquefac- 

 tion slow. Soluble pigment dark brown. 



Potato: Growth golden yellow. Aerial 

 mycelium ash-gray. Soluble pigment dark 

 brown. 



Milk: Surface growth white-gray to gray- 

 ish-blue. Aerial mycelium ash-gray. No co- 

 agulation ; peptonization weak. 



Antagonistic properties: Positive. 



Habitat: Soil from Rome, Italy. 



189. Streptomyces platensis Pittenger and 

 Gottlieb, 1954 (Pittenger, R. C. and Gott- 

 lieb, D. Brit. Pat. 713,795, August 18, 

 1954*). 



Morphology: Aerial mycelium forms loose 

 to tight spirals on its sporophores. Spores 

 ovoid, 0.7 to 0.9 by 0.8 to 1.2 M . 



Sucrose nitrate agar: Substrate growth 

 deep olive, reverse becoming dark olive. 

 Aerial mycelium pale smoke-gray with tufts 

 of white; areas of black pigmented aerial 

 growth may also be found, giving effect of 

 a mosaic. 



Glucose-asparagine agar: Substrate 

 growth ochraceous-buff becoming tawny. 

 Aerial mycelium white becoming grayish- 

 olive to almost black. Soluble pigment ;il>- 

 sent or slight, brown. 



* Supplemented by personal communication. 



