FAMILY III. STREPTOMYCETACEAE 



771 



nomyces roseus Namyslowski, Cent, f . Bakt., 

 I Abt., Orig., 62, 1912, 567; Actinomyces 

 roseochrotnogenus (sic) Jensen, Proc. Lin- 

 nean Soc. New So. Wales, 56, 1931, 359; 

 Sirepiomyces roseochromogenus (sic) Waks- 

 man and Henrici, in Manual, 6th ed., 1948, 

 937.) 



ro.se. o.chro.mo'ge.nes. L. adj. roseus 

 rosy; Gr. noun chroma color; Gr. v. suffix 

 -genes producing; M.L. adj. roseochromo- 

 genes producing a red color. 



Vegetative growth: Red to rose-colored 

 pigment; produces dark brown soluble sub- 

 stance. 



Aerial mycelium: Well developed. Sporo- 

 phores produce numerous open and closed 

 spirals. Spores 1.0 to 1.2 by 1.5 to 3.0 mi- 

 crons. 



Gelatin stab: Liquefaction, with small, 

 cream-colored colonies in bottom of liquid. 



Agar: White growth, becoming yellowish. 



Synthetic agar: Thin, spreading, color- 

 less growth. Aerial mycelium thin, pale, 

 brownish. 



Starch agar: Colorless, spreading growth. 



Glucose agar: Growth extensive, spread- 

 ing, colorless, entire. 



Glucose broth: Cream-colored ring; flaky 

 sediment. 



Litmus milk: Brownish ring. Coagula- 

 tion limited. Peptonized in 10 to 15 days, 

 becoming strongly alkaline. 



Potato : Much wrinkled, brownish growth. 



Purple pigment on egg media; brown on 

 gelatin. 



Starch is hydrolyzed. 



Nitrites produced from nitrates. 



Aerobic. 



Optimum temperature, 37° C. 



Antagonistic properties: Active against 

 various bacteria; produces an antibiotic, 

 roseomycin. 



Source: Isolated from soil. 



Habitat: Soil. 



41. Streptomyces cinnamonensis Ok- 



ami, 1952. (Okami, in Maeda, Okami, 

 Kosaka, Taya and Umezawa, Jour. Anti- 

 biotics (Japanese), 5, 1952, 572; also see 

 Okami, Maeda, Kosaka, Taya and Ume- 

 zawa, Jap. Jour. Med. Sci. and Biol., 6, 

 1953, 87.) 

 cin.na.mo.nen'sis. Gr. neut.n. cinna- 



mum cinnamon; M.L. adj. cinnamonensis 

 relating to cinnamon. 



Vegetative growth: Fine branching my- 

 celium. 



Aerial mycelium: 0.8 to 1.2 microns in 

 diameter; long filamentous mycelium; no 

 spirals. Spores ellipsoidal. 



Gelatin: Colorless to dark brownish 

 growth. Aerial mycelium in form of white 

 patches. Soluble brown pigment. No lique- 

 faction or very slow liquefaction. 



Agar: Colorless to dark growth. No aerial 

 mycelium. Soluble, slightly brown pigment 

 may be produced. 



Glucose asparagine agar: Colorless to 

 light cream-colored growth. White to white- 

 pinkish-cinnamon aerial mycelium with 

 light brownish-vinaceous tinge. No soluble 

 pigment. 



Synthetic glycerol agar: Colorless, 

 spreading growth. Scant, white aerial my- 

 celium or white with pale cinnamon-pinkish 

 to light brownish-vinaceous tinge. No solu- 

 ble pigment. 



Starch agar: Colorless, spreading growth. 

 Aerial mycelium white with pinkish tinge. 

 No soluble pigment. 



Loeffler's blood serum: Colorless to dark 

 colored growth. No aerial mycelium. Soluble 

 brown pigment. No liquefaction. 



Blood agar: Dark to brownish growth. 

 No aerial mycelium. Soluble brown pig- 

 ment. No hemolysis. 



Milk: Cream-colored to brownish surface 

 ring. No aerial mycelium or scant, white. 

 No soluble pigment or slightly brown. Not 

 coagulated; may be very slowly peptonized. 



Potato plug: Light cream- to dark-colored 

 growth. No aerial mycelium. No soluble 

 pigment, later black pigment produced 

 around growth. 



Starch is actively hydrolyzed. 



Cellulose not decomposed. 



Sucrose, mannose, dextrin, galactose, 

 glycerol, fructose, glucose, maltose, manni- 

 tol, xylose and sodium succinate are utilized 

 as carbon sources. Arabinose, esculin, 

 rhamnose, dulcitol, sodium acetate, inulin 

 and lactose are not utilized as carbon 

 sources. Salicin and raffinose are negative. 



Nitrites not produced from nitrates. 



Antagonistic properties: Produces an 

 antibiotic which is active against myco- 



