FAMILY III. STREPTOMYCETACEAE 



785 



flexuous. Spores catenulate, ellipsoidal, 0.8 

 by 1.25 microns. 



Gelatin: Fair growth. White aerial my- 

 celium. Soluble light yellow pigment. Lique- 

 faction. 



Agar: Poor, moist, smooth, colorless 

 growth. No aerial mycelium. 



Synthetic agar: Poor, white growth. 

 White aerial mycelium. No soluble pigment. 



Starch agar: Good growth. White to pale 

 olive-buff aerial mycelium. Soluble black 

 pigment. 



Glucose agar: Blackish gray growth. 

 White aerial mycelium. Soluble, blackish 

 gray pigment. 



Milk: White surface ring with yellow- 

 green to light yellow-brown l)elow surface. 

 White aerial mycelium. Slowly peptonized. 



Potato plug: Moist yellow growth. White 

 aerial mycelium. Soluble, dark, greenish 

 black pigment. 



Starch is actively hydrolyzed. 



No growth on cellulose. 



Antagonistic properties: Produces puro- 

 mycin, an antibiotic active against certain 

 protozoa and certain Gram-positive bac- 

 teria. 



Source: Isolated from soil. 



Habitat: Soil. 



72. Streptoniyces abikoensis Umezawa 

 et al., 1951. (Streptomtjccs abikoensum (sic) 

 Umezawa, Tazaki and Fukuyama, Jap. 

 Med. Jour., 4, 1951, 331; also see Okami, 

 Jour. Antibiotics (Japanese), 5, 1952, 479.) 



a.bi.ko.en'sis. M.L. adj. abikoensis per- 

 taining to Abiko; named for Abiko, Japan. 



Vegetative growth: In separate colonies 

 with very thin yellow aerial mycelium. Sub- 

 merged mycelium yellow or yellowish 

 brown. Soluble yellowish brown pigment. 



Aerial mycelium: Microscopically short, 

 unbranched, bearing a straight conidia 

 chain. 



Gelatin: Cream or brown growth. Soluble 

 brown pigment. Crateriform liquefaction. 



Agar: Isolated colonies; growth cream, 

 with triangular hole in the center. No aerial 

 mycelium. Soluble brown pigment. 



Loeffler's coagulated serum: Cream 

 growth. No aerial mycelium. No hydrolysis. 

 Brown pigment. 



Blood agar: Dark cream-yellow growth. 

 Hemolysis strong. 



Glucose, maltose and glj'cerol are utilized. 

 Arabinose, xylose, rhamnose, fructose, 

 galactose, mannitol, sorbitol, lactose, su- 

 crose, raffinose and inulin are not utilized. 



Milk: Slight, brown growth. Aerial 

 mycelium white: Soluble yellowish brown 

 pigment. Peptonized. 



Carrot: Slight, wrinkled, brownish cream 

 growth. Aerial mycelium j-ellowish white. 

 Brown pigment. 



Egg: Greenish yellow growth, without 

 aerial mycelium and with spreading reddish 

 violet pigment. 



Starch is hj^drolyzed. 



Tyrosinase not produced. 



Nitrites not produced from nitrates. 



Antagonistic properties: Produces an 

 antiviral agent, abikoviromycin. 



Source: Strain Z-1-6 was isolated from 

 garden soil from Abiko, Chiba Prefecture. 



Habitat: Found in garden soils. 



73. Streptomyces odorifer (Rullmann, 

 1895, emend. Lachner-Sandoval, 1898) Waks- 

 man, 1953. {Cladoihrix odorifera Rullmann, 

 Inaug. Diss., Munich, 1895; see Cent. f. 

 Bakt., I Abt., 17, 1895, 884; and Cent. f. 

 Bakt., II Abt., 2, 1896, 116; Actinomyces 

 odorifer Lachner-Sandoval, Ueber Strahlen- 

 pilze, 1898, 65; Waksman, in Waksman and 

 Lechevalier, Actinomycetes and Their 

 Antibiotics. Baltimore, 1953, 79.) 



o.do'ri.fer. L. adj odorifer fragrant. 



Vegetative growth: Colorless, folded. 



Aerial mycelium: Well developed, white 

 or light gray. Sporophores long, straight, 

 branching. Spirals formed according to 

 original report (none observed by Waksman, 

 loc. cit.). Spores spherical. 



Gelatin: Cream-colored surface ring. 

 Aerial mycelium thin, white. No soluble 

 pigment. Slow liquefaction. 



Agar: Folded, brown growth. Aerial my- 

 celium white around edge. Faint soluble 

 brown pigment. 



Synthetic agar: Cream-colored growth 

 with trace of brown. Aerial mycelium heavy, 

 cream-colored. 



Starch agar: Cream-colored to brown 

 growth. Aerial m3'celium abundant, cream- 



