DESCRIPTION OF SPECIES OF STREPTOMYCES 225 



Sucrose nitrate agar: Growth reddish- et al, 1956 (Anderson, L. E., Ehrlich, J., 



orange when freshly isolated, bul changes to Sun, S. II.. and Burkholder, P. 1{. Antibiot- 



colorless or whitish on repeated transfer, ics & Chemotherapy 6: 100 115,1956). 



Aerial mycelium powdery, drab-gray. No Not S. griseoviridus. 



soluble pigment. Morphology: Sporophores straighl or 



Calcium malate agar: Growth at first curved, with open and closed spirals on 



glossy, pinkish-gray, later becoming dull lateral branches. Spores spherical to ovoid, 



purplish. Aerial mycelium powdery, olive- 0.6 to 1.5 by 0.8 to 2.1 /*■ 



gray. Soluble pigmenl absenl or taint yel- Starch-ammonium sulfate agar: Growth 



lowish-brown. tan-gray to black. Aerial mycelium tan to 



Nutrient agar: Growth a1 firsl lighl olive- lighl brown, 



gray, later becoming brown. Aerial myce- Glycerol-asparagine agar: Growth lighl 



hum absent or scanty, white. Soluble pig- yellow to gray. Aerial mycelium pink-tan to 



ineni brown. gray-green. 



Starch agar: Growth lighl reddish-orange Calcium malate agar: Growth yellow-tan 



to reddish-purple. Aerial mycelium powdery, to gray. Aerial mycelium lighl brown. Slight 



olive-gray. Soluble pigmenl taint yellow to hydrolysis of starch, 



faint yellowish-pink. Strong hydrolysis. Nutrient agar: Growth yellow-tan to 



Potato: Growth wrinkled, at firsl olive- green-gray to brown. Aerial mycelium lighl 



gray to dark yellowish-brown, later becom- gray-pink to light gray-green. Soluble pig- 



ing dark reddish or black. Aerial mycelium menf light brown. 



absent or scanty, while. Soluble pigment Glucose-tryptone agar: Growth lighl 



deep purple to black. brown to red-brown to dark brown or black. 



Gelatin: Growth light yellowish-brown on Aerial mycelium pink-gray to lighl brown 



surface. No aerial mycelium. Soluble pig- to green-brown. Soluble pigment brown; red- 



ment brown to light yellowish-green. Lique- brown near growth, 



faction weak to medium. Gelatin: Fairly rapid liquefaction. Soluble 



Milk: Growth deep brown al 37°C, but pigment lighl brown to dark brown, 



cream-colored to lighl yellowish-brown, and Milk: Peptonization. 



occasionally with pinkish tone at 25°C. Sol- Starch: Hydrolysis, 



uble pigment grayish-yellow-brown al 37°C, Carbon utilization: Utilizes arabinose, 



but sometimes faint yellowish-brown with cellobiose, dextrin, galactose, glucose, glyc- 



pinkish shade at 25°C. Coagulation begins in erol, lactose, levulose, maltose, mannitol, 



3 days, followed by peptonization. mannose, rhamnose, starch, trehalose, and 



Cellulose: No growth. xylose. Doe.- not utilize esculin, adonitol, 



Carbon utilization: Utilizes D-xylose, l- dulcitol, /-inositol, inulin. melezitose, meli- 



arabinose, L-rhamnose, lactose, inositol, sali- biose, raffinose, salicin, sorbitol, and sucrose. 



• •in. -odium acetate; does not utilize sucrose, Antagonistic properties: A source of <j;n>- 



raffinose, inulin, mannitol, sorbitol, citrate, eoviridin and viridogrisein (etamycin). 



and succinate. Habitat : Texas soil. 



Antagonistic properties: Active againsl Type culture: IMRU 3735. 

 gram-positive and acid-fasl bacteria; pos- ,„. Streptomyces griseus Waksman and 

 antitnchomonal activity. Eeari^ 1948 (Waksman and Benrici, Ber- 



aemarks: Related to the S. ruber -roup gey)g M:mll:lIj ,. |h ( , ( , ,, lls _ p 94g; Waks _ 



and to S. erythrochromogenes. m;m _ s A ;m(1 rmU ^ ,, ,.- S(i]] S( ., ,. 



Mo. Streptomyces griseoviridis Anderson 11 ( .» 120, 1916; Waksman, S. A., Eteilly, 



