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THE ACTINOMYCETES, Vol. II 



Carbon utilization: Utilizes D-xylose, 

 L-arabinose, L-rhamnose, D-galactose, lactose, 

 ramnose, mannitol, inositol, salicin, acetate, 

 citrate, and succinate; docs not utilize su- 

 crose, inulin, sorbitol, or cellulose. 



Antagonistic properties: Active againsl 

 gram-positive and acid-fast bacteria, fungi, 

 ;ind trichomonads. 



Remarks: Related to S. antimycoticus. 



1(10. Streptomyces narbonensis Corbaz et 

 a/., 1955 (Corbaz, R., Ettlinger, L., Gau- 

 mann, E., Keller, W., Kradolfer, F., Ky- 

 burz, E., Xeipp, L., Prelog, V., Reusser, R., 

 and Zahner, H. Helv. Chim. Acta 38: 935- 

 942, L955); 



Morphology: Spirophores straight; no 

 spirals. Spores smooth, cylindrical, 0.8 to 

 1.1 by 0.7 to 0.9 M - 



Glycerol nitrate agar: Growth thin, color- 

 less to yellowish-brown. Aerial mycelium 

 velvety, whitish-gray- No soluble pigment. 



Glucose-asparagine agar: Growth thin, at 

 first colorless, then yellowish-brown. Aerial 

 mycelium sparse, chalk-white. Xo soluble 

 pigment. 



Calcium malate agar: Growth colorless. 



Figure 43. Hyphae of isolate AA 877, re- 

 sembling S.netropsis, showing character of verticils 

 of sporogenous branches (Reproduced from: Dug 

 gar, IV M. etal. Ann. X. V. Acad. Sci. 60:85, 1954). 



Aerial mycelium white-gray. Xo soluble 

 pigment. 



Glucose-peptone agar: Growth light yel- 

 lowish, punctiform. Aerial mycelium pro- 

 duced late, powdery, gray-white. Xo soluble 

 pigment. 



Nutrient agar: Growth punctiform, yel- 

 lowish. Xo aerial mycelium. Xo soluble 

 pigment. Melanin-negal ive. 



Starch agar: Growth thin, colorless to 

 yellowish. Aerial mycelium powdery, white. 

 Xo soluble pigment. Hydrolysis good. 



Gelatin: Growth yellowish-white. Aerial 

 mycelium snow-white. Soluble pigment light 

 reddish-brown. Liquefaction slow. 



Potato: Growth lichenoid, bluish-gray to 

 reddish-gray. Xo aerial mycelium. Soluble 

 pigment dark brown. 



Milk: Surface ring whitish-yellow. Pep- 

 tonization without coagulation. 



Production of PES: Positive. 



Antagonistic properties: Produces basic 

 antibiotic, narbomycin, related to picromy- 

 cin. 



Carbon utilization: Etilizes xylose, arabi- 

 nose, rhanmose, fructose, galactose, sac- 

 charose, maltose, raffinose, inulin, salicin, 

 sodium acetate. Does not utilize mannitol, 

 sorbitol, dulcitol, mesoinositol. 



Habitat: Soil. 



Remarks: Ettlinger et al. (1958) consider 

 this organism as belonging to S. <>lirac< us. 



161. Streptomyces netropsis Finlay and 

 Sobin, 1952 (Finlay, A. C. and Sobin, B. A. 

 E. S. 2,586,762, 1952). 



Morphology: Sporophores in form of ver- 

 ticils or terminal clusters on tips of short 

 hyphae (Fig. 43). Spores short, cylindrical, 

 0.7 by 1.3 m, smooth (PI. I a). 



Sucrose nitrate agar: Growth thin, pale 

 olive-buff. Aerial mycelium pale vinaceous- 

 fawn. Xo soluble pigment. 



Glucose-asparagine agar: Growth moder- 

 ate, wrinkled. Aerial mycelium white. Solu- 

 ble pigment brown. 



Calcium malate agar: Growth moderate, 



