DESCRIPTION OF SPECIES OF STREPTOMYCES 



L97 



ish. Aerial tnycelium white. Liquefaction me- 

 dium. Melanin-negative. 



Milk: Surface growth cream-colored. Co- 

 agulation followed by rapid peptonization. 



Starch media: Growth abundant, citron- 

 yellow to yellowish-green. Aerial mycelium 

 pinkish. Rapid hydrolysis of starch. 



Cellulose: No growth. 



lnvertase: Positive. 



Nitrate: Slighl reduction to nitrite. 



Production of H 2 S: Negative. 



Temperature: Optimum 37°C. 



Antagonistic properties: Negative. 



Habitat : ( iarden soil. 



Remarks: Since Krainsky's culture was 

 not available for comparison, the above de- 

 scription is based upon that of Waksman and 

 Curtis (1916) and Waksman (1919) ; some dif- 

 ferences exisl between this description and 

 thai of Krainsky. Ettlinger et al. ( L958) con- 

 sidered this culture as a .-train of S. griseus. 

 Krassilnikov (1949) considers this organism 

 as similar to Gasperini's culture, both being 

 looked upon as varieties of A.flavus. 



Type culture: [MRU :>.">74. 



.")7. Streptomyces clavifer (Millard and 

 Burr, L926) Waksman (Millard, W. A. and 

 Burr, S. Ann. Appl. Biol. 13: 580, 1926). 



Morphology: Sporophores Long, straight, 

 some terminating in club-shaped structures. 

 Spores cylindrical, 1.5 by 1.0 m- 



Sucrose nitrate agar: Growth gray to 

 brick-red. Aerial mycelium white, sprinkled 

 with cinnamon-drab. Soluble pigmenl yel- 

 lowish to brown. 



Potato: Growth wrinkled, gray to orange 

 to brown. Aerial mycelium gray t<> olive- 

 buff. Color of pluji gray to brown. 



Gelatin: Growth gray to buff. Aerial my- 

 celium white. Medium liquefaction. Soluble 

 pigmenl yellow to reddish-yellow. 



Starch: Bydrolysis. 



Tyrosinase reaction: Positive. 



Nitrate: No reduction. 



Temp 



('. 



Habitat: Limed soil and common .-cab of 

 potatoes. 



Remarks: Kutzner (1956) described the 

 original culture obtained from CBS as pro- 

 ducing an ash-gray aerial mycelium without 

 spirals, and as melanin-negative; this culture 

 was indistinguishable from S. craterifer also 

 obtained from CBS. Krassilnikov (1949) 

 considered it as a variety of .1. scabies. 



58. Streptomyces coelicolor (Muller, 1908 

 Waksman and Henrici emend. Kutzner and 

 Waksman (Muller, lb Centr. Bakteriol. 

 Parasitenk. Abt. I, ( >rig. 46: L95, 1908; 

 Kutzner, II. J. and Waksman, S. A. 

 J. Bacterid. 78: 528 538, 1959). 

 Synonyms: 



Streptothrix coelicolor Muller (Muller, 



1908). 



Actinomyces albidoflavus (strain Hohle, 



CBS). 



Actinomyces alni (strain v. Plotho, CBS). 



Streptomyces cant sens Hickey et al. 



(Hickey et al., L952, X KIM. 2419). 

 Possible synonyms: .1. cyaneofuscatus 

 ( Jause et al. (( rause et al., L957). 



A. levoris Krassilnikov (Krassilnikov, 



1958). 

 \oi S. violaceoruber. 



Morphology: Sporophores of mos1 strains 

 short, arranged in small tufts, wavy; no 

 spirals. Spores spherical to ellipsoidal; sur- 

 face smooth. 



Agar media: Substrate growth on most 

 media colorless or atypical yellowish-brown- 

 ish; sometimes pinkish-red, especially in the 

 lower part of the slants. Aerial mycelium 

 colored grayish-yellow, often with a green- 

 ish or pinkish shade. Soluble pigmenl on 

 mosl media either absent or yellowish- 

 brown. Blue pigment is produced by some 

 -trains on glucose-calcium malate-NH^NOa 

 agar, mannitol-calcium malate-peptone agar, 

 or glucose-peptone agar. 



Potato: Growth abundant, lichenoid. Aer- 

 ial mycelium powdery, white to yellow. 

 Characteristic formation of greenish-blue to 



