DESCRIPTION OF SPECIES OF STREPTOM1 CES 2\7 



Morphology: Aerial mycelium consists of Milk: Pinkish ring. Coagulation and 



short, gnarled hyphae. Spores short, oval to peptonization. 



spherical. Starch: drouth thin, spreading, cream- 

 Synthetic agar: Growth dark to almost colored. Hydrolysis. 

 black, with dark reverse. Aerial mycelium Nitrate reduction: Positive. 

 abundant, mouse-gray. No soluble pigment. Producti >l' IPS: Negative. 



Nutrient agar: Growth thin, colorless. No Temperature: Optimum 25 C. 



aerial mycelium. No soluble pigment. Antagonistic properties: Produces elaio- 



Glucose agar: Growth cream-colored, be- mycin. 



coming black with lighl margin. Aerial myce- 1 labitat : Soil, 



lium abundant, mouse-gray. Remarks: Various related forms have 



Potato: Growth lichenoid, cream-colored been described by Gause et al. (1957);these 



to brownish. No aerial mycelium. No soluble include .1. griseorubens, .1. rubiginomis, and 



pigment. .1. atroolivaceus. Krassilnikov (1959) con- 



Gelatin: Growth thin, flaky. No soluble siders this organism as belonging to the S. 



pigment. Rapid liquefaction. albus group. 



.Milk: Surface ring cream-colored. No Type culture: IMRU 3323. 



peptonization. , m p, . , , , . 



1 \ . .. -, . .. 101. btreptomyces glaucus (Lehmann and 



otarcn media : Growth yellowish to cream- q i , , ,- •. •, ..... ,,. , 



. . , ,. ■ ,. , bchutze emend. Krassilnikov, 1941) Waks- 



colored. Aenal mycelium lighl gray. Hy- man (Kra ssilnikov, N. A. Actinomycetales. 



dr °* ysis stro ^ g - . X7 Izvest. Akad. Nauk. SSSR, Moskau, p. 16, 



Nitrate reduction: Negative. 1041) 



Production of IIS: Negative. \, , , a , 



1 , °. . , , . Morphology: bporophores form compact 



Source: Sputum oi patienl with chronic gpirals w[th ., t() g turng ^^ oya] fcQ 



l ^ng disease. spherical, 1.0 by 0.8 M - 



1 vpe culture: IMlvl 3417. ^,, „ , , ,. , , , 



•' bucrose nitrate agar: Growth colorless; 



100. Streptomyces gelaticus (Waksman, soluble pigmenl brown. Aerial mycelium at 



1919) Waksman and llenrici, 1948 (Waks- first white, then becoming brighl green, 



man, S. A. Soil Sci. 8: 10."), 1010). Nutrient agar: Growth heavy. Aerial 



Synonym: Streptomyces hepaticus. mycelium green. 



Morphology: Sporophores produce open Potato: Growth heavy. Aerial mycelium 



spirals. According to Anderson et al. (1956), velvety, green. 



the organism does not produce spirals. Gelatin: Liquefaction slow. Melanin-nega- 



Sucrose nitrate agar: Growth colorless, ,1V( '- 



spreading, chiefly deep into the medium. Milk: Peptonization slow, with prior 



Aerial mycelium thin, white, turning grayish. , - ,,; ^ ,ll;l,i " 11 by some strains. 



v,,t,-; ,. . ,. i ■,. .i i .■ Starch: Hydrolysis rapid. 



Nutrient agar: Growth only on surface, ., " " ' 



• , , , , , C ellulose: ( Growth good. 



wrinkled, cream-colored. ^ 



. ,, . , Nitrate reduction : Positive. 



Glucose agar: Growth abundant, spread- 



. . ' Sucrose: Poor inversion, 



in"-, white. dm/- i i 



I aramn : ( rrowth good. 



Potato: (irowth abundant, much wrin- \ , • ,• m. 



Antagonistic properties: All strains 



kled, greenish, becoming black with yellow- stronedv antagonistic 



ishmargin. Habitat: Soil. 



Gelatin: Produces flaky, cream-colored Remarks: Numerous cultures belonging 



sediment. Good liquefaction. to this organism or closely related to it have 



