FAMILY III. STREPTOMYCETACEAE 



779 



Jour. Antibiotics (Japanese), 5, 1952, 529 

 and 313.) 



ta.na.shi.en'sis. M.L. adj. tanashiensis 

 pertaining to Tanash; named for Tanash, 

 a place near Cairo, Egypt. 



Aerial mycelium: Hyphae almost straight; 

 lightly open spirals. Spores spherical to 

 ellipsoidal, 1.0 by 1.2 microns. 



Gelatin: Brown pigment. Rapid lique- 

 faction. 



Synthetic agar: Grayish yellow growth. 

 Aerial mjcelium white-gray turning brown- 

 ish gray. Soluble, light yellow pigment. 



Milk: Yellowish surface ring. Coagulated 

 and peptonized. 



Potato: Brown growth. Aerial mycelium 

 dark gray to whitish gray. Soluble dark 

 brown pigment. 



Starch is hydrolyzed. 



Carbon sources: Starch most suitable, 

 followed by glycerol. 



Nitrogen sources: Peptone and meat ex- 

 tract best. 



Tyrosinase reaction: Positive. 



Nitrites not produced from nitrates. 



Optimum pH, between 5.8 and 6.5. 



Antagonistic properties: Produces luteo- 

 mycin. 



Relationships to other species : Resembles 

 Streptomyces mireus and Streptomyces anti- 

 bioticus. 



Source: Isolated from soil. 



Habitat: Soil. 



58. Streptomyces erythroehromo- 



genes (Krainsky, 1914) Waksman and Hen- 

 rici, 1948. {Actinomyces erythrochro?nogenes 

 Krainsky, Cent. f. Bakt., II Abt., 41, 1914, 

 662; also see Waksman and Curtis, Soil 

 Sci., 1, 1916, 112; Waksman and Henrici, in 

 Manual, 6th ed., 1948, 944.) 



e.ry.thro.chro.mo'ge.nes. Gr. adj. cry- 

 thrus red; Gr. noun chromus color; Gr. v. 

 sufHx -genes producing; M.L. adj. erythro- 

 chromogenes producing red color. 



Aerial mycelium: Conidia ellipsoidal, 

 about 2.0 microns long. 



Gelatin colonies: Slow growth. 



Gelatin stab: Liquefied. A soluble brown 

 pigment formed. 



Agar: Brown soluble pigment. White 

 aerial mycelium. 



Ca-malate agar: Colonies circular, with 

 grayish white margined aerial mycelium. 



Glucose agar: Red pigment formed. 



Starch agar: A soluble rose pigment on 

 old cultures. 



Glucose broth: Abundant growth. Float- 

 ing colonies, later a pellicle is formed. 

 Brown soluble pigment. 



Potato: Gray aerial mycelium. Medium 

 colored black. 



Weakly diastatic. 



No growth in cellulose. 



No proteolytic enzyme formed. 



Nitrates show slight reduction. 



Aerobic. 



Optimum temperature, 30° C. 



Antagonistic properties: Active against 

 various bacteria. 



Source : Isolated from soil and from roots 

 of Alnus (alder). 



Habitat: Soil. 



59. Streptomyces collinus Lindenbein, 

 1952. (Arch. f. MikrobioL, 17, 1952, 380.) 



col.li'nus. L. adj. collinus hilly, mounded. 



Aerial mycelium: Produces spirals. Abun- 

 dant sedimentation producing ellipsoidal 

 spores. 



Gelatin: Dark brown growth. No aerial 

 mycelium. Soluble dark brown pigment. 

 Rapid liquefaction. 



Agar: Crumb-like, dark brown growth. 

 Aerial mycelium powdery gray-white. Solu- 

 ble dark brown pigment. 



Synthetic agar: Crumb-like growth with 

 light brown to red-brown reverse. Aerial 

 mycelium chalk-white. Soluble yellow- 

 brown pigment, later becoming reddish 

 brown. 



Glucose asparagine agar: Crumb-like 

 growth with reverse irregularly brown- 

 purple to brown-yellow. Aerial mycelium 

 chalk-white, later becoming ash-gray. Solu- 

 ble carmine-red pigment, later brown-red. 



Ca-malate agar: Crumb-like growth with 

 yellow-brown to red reverse. Aerial myce- 

 lium velvety chalk-white. Soluble yellow- 

 brown pigment. 



Starch agar: Large, reddish colonies with 

 reddish yellow reverse. Aerial mycelium 

 velvety chalk-white. 



Glucose agar: Good growth with yellow- 



