Page:Bergey's manual of determinative bacteriology.djvu/841

 Habitat: Unknown. 147. Streptoinyces somaliensis (Brumpt, 1906) Waksman and Henrici, 1948. (Indiella somaliensis Brumpt, Arch. Parasit., Paris, 10, 1906, 489; Waksman and Henrici, in Manual, 6th ed., 1948, 965.) so.ma.li.en'sis. M.L. adj. somaliensis pertaining to Somali; named for Somali, an East African people living in Somaliland. Description taken from Erikson (Med. Res. Council Spec. Kept. Ser. 203, 1935, 17). Vegetative growth: Simple branching, unicellular mycelium with long, straight filaments, forming circumscribed colony crowned with aerial mycelium. Aerial mycelium: Short, straight. Gelatin: Cream-colored colonies, me- dium pitted; complete liquefaction in 10 days; hard black mass at bottom. Agar: Abundant yellowish granular growth with small discrete colonies at margin; later growth colorless, colonies umbilicated. Glucose agar: Poor growth, moist cream- colored elevated patch. Glycerol agar: Abundant growth, minute round to large convoluted and piled up masses, colorless to dark gray and black. Ca-agar: Round cream-colored colonies, depressed, umbilicated, piled up, thin white aerial mycelium; colonies become pale brown. Potato agar: Small round colorless colo- nies, zonate margin depressed, confluent portion dark greenish black. Blood agar: Small dark brown colonies, round and umbilicated, piled up confluent bands, reverse red-black; hemolysis. Dorset's egg medium: Extensive color- less growth, partly discrete; becoming opaque, cream-colored, very wrinkled; later rough, yellow, mealy, portion liquid. Serum agar: Spreading yellow-brown skin, intricately convoluted. Inspissated serum: Cream-colored coiled colonies, medium pitted, transparent and slightly liquid. Broth: A few round white colonies at sur- face, numerous fluffy masses in sediment; later large irregular mass breaking into wisps. Synthetic sucrose solution : Minute round white fluffy colonies in sediment; after 17 daj's, scant wispy growth. Milk: Soft semi -liquid coagulum which undergoes digestion; heavy wrinkled surface pellicle, completely liquefied in 12 days. Litmus milk: Soft coagulum, partly digested, blue surface ring; clear liquid in 12 days. Potato plug: Abundant growth, colonies round and ellipsoidal, partly piled up in rosettes, frosted with whitish gray aerial mycelium, plug discolored; after 16 days, aerial mycelium transient, growth nearly black. Antagonistic properties: Positive. Comments: Although Streptomyces soma- liensis has been known for a long time, there have been, until recently, no detailed de- scriptions of the organism beyond the fact that it possesses a distinctly hard sheath around the grain which is insoluble in potash and eau de javelle. The rare occurrence of septa and occasional intercalary chlamy- dospores is reported by Brumpt (Arch. Parasit., 10, 1905, 562), but has not been confirmed by Erikson. Chalmers and Chris- topherson (Ann. Trop. Med. Parasit., 10, 1916, 223) merely mentioned the growth on potato as j^ellowish white and lichenoid without describing any aerial mycelium. Balfour in 1911 reported a case but gave no data, and Fiilleborn limited his descrip- tion to the grain (Arch. Schiffs. Trop. Hyg., 15, 1911, 131). This species was first placed in Indiella, a genus of fungi, by Brumpt (1906). Later Brumpt (1913) proposed a new genus or subgenus, Indiellopsis, con- taining the single species Indiellopsis so- maliensis. Source: Isolated from a case of j'ellow- grained mycetoma, Khartoum (Balfour, 4th Rept. Wellcome Trop. Res. Lab., A. Med., London, 1911, 365). Habitat: This condition has been ob- served by Baufford in French Somaliland, by Balfour in the Anglo-Egyptian Sudan, by Fiilleborn in German So. West Africa and by Chalmers and Christopherson in the Sudan. 148. Streptoinyces panjae (Erikson, 1935) Waksman and Henrici, 1948. {Actino-