منابع مشابه
Growth of Pathogenic Leptospirae by Replacing Rabbit Serum with Mycobacterium Phlei or Mycobacterium Smegmatis.
This strain appeared to consist of a mixture of two variants: 4 of 20 subcultures from single colonies were coagulase-negative; the remaining 16 were coagulase-positive. The two variants differed also in respect to toxin production. The hemolytic zones produced on 5% rabbit blood agar by the coagulasenegative variant were smaller than the zones produced by the coagulase-positive one. This prope...
متن کاملStudies on Pathogenic B. Coli from Bovine Sources
1. The soluble specific substance obtained from a capsulated strain of B. coli is not identical with any specific substance heretofore described. It is a carbohydrate, composed of 80 per cent of hexose, probably partly of dextro- and partly of levorotatory sugar, since the rotation of the hydrolysate is low. Glucuronic acid is probably present in the molecule. 2. Crude "residue" or specific sub...
متن کاملRapid method for the differentiation of parasitic and saprophytic leptospirae.
The differentiation of parasitic and saprophytic leptospirae may be of importance not only from a taxonomical point of view, but it can present a diagnostic problem in culturing strains from different materials, even from human specimens (Fuzi and Cs6ka, Zentr. Bakteriol. Parasitenk., Abt. I, Orig., 178, 222, 1960). The determination of pathogenicity for laboratory animals cannot be regarded as...
متن کاملBroadly reacting precipitating and agglutinating antigen of leptospirae.
A saprophytic Leptospira biflexa strain of equine origin was found which cross-reacts with immune rabbit antisera to 14 pathogenic Leptospira interrogans serotypes. Sera from goats experimentally inoculated with the saprophyte showed multiple low-level cross-agglutination reactions against a battery of live L. interrogans serotypes. Sonically treated and saline-extracted suspensions of the L. b...
متن کاملProtective action of glycerol in the freezing of leptospirae.
Scientists have attempted to keep leptospirae viable for long periods of time by freezing, by drying, by drying after freezing, and by storing sealed cultures at room temperature. Freezing methods have received the most attention, but viability after prolonged storage is uncertain due to the destruction of a high percentage of leptospirae (Weinman and McAllister, Am. J. Hyg., 45, 102-121, 1947)...
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ژورنال
عنوان ژورنال: Japanese Journal of Microbiology
سال: 1968
ISSN: 0021-5139
DOI: 10.1111/j.1348-0421.1968.tb00378.x