VIRULENCE AND MORPHOLOGICAL CHARACTERISTICS OF MAMMALIAN TUBERCLE BACILLI
نویسندگان
چکیده
منابع مشابه
Virulence and Morphological Characteristics of Mammalian Tubercle Bacilli
Experimental infection of the mouse can be used for the determination of virulence of cultures of mammalian tubercle bacilli. The relative virulence of such cultures for the mouse is approximately the same as for the guinea pig. Cultures of virulent and avirulent variants of mammalian tubercle bacilli grown in the depth of Tween 80-albumin liquid medium, on the surface of solid agar modificatio...
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The bacillary cords characteristic for virulent tubercle bacilli are readily disrupted when wet bacilli are suspended in hydrocarbons such as paraffin oil or petroleum ether. The disruption of cords is due to the removal of a material coating the surface of the bacilli and causing them to adhere to each other. This material can be obtained from virulent bacilli by extracting them with petroleum...
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Mycobacterial strains examined : a) No. 386R-INH, b) H37RvR-INH, c) BCGR-INH, d) No. 386R-TB1• INH. The first three strains were isolated in one step on slants of Ogawa's medium containing INH in a concentration of 100ƒÁ per ml from their parent strain; No. 386, H37Rv, and BCG respectively, of which the history was described in our previous paper(10). Although these three INH-resistant strains ...
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1 Mycobacteriology Research Centre(MRC), National Research Institute of Tuberculosis and Lung Disease (NRITLD), WHO; UNION Collaborating Centre for TB and Lung Diseases, Shahid Beheshti University (Medical Campus), Darabad, Tehran, Iran. 2 The Republican Research and Practical Centre for Epidemiology and Microbiology, Minsk, Belarus. 3 Institute for Chemistry of New Materials, Belarus National ...
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The growth of tubercle bacilli in vitro was inhibited by the addition of the sodium salts of very low concentrations of certain organic acids to a variety of liquid and agar culture media containing whole serum or serum albumin. Capric acid was the most active of the compounds tested, but inhibition of growth occurred also with the shorter aliphatic acids. Lactic acid was also growth-inhibitory...
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ژورنال
عنوان ژورنال: Journal of Experimental Medicine
سال: 1947
ISSN: 1540-9538,0022-1007
DOI: 10.1084/jem.86.2.175