LECITHINASE PRODUCTION BY GRAM-NEGATIVE BACTERIA
نویسندگان
چکیده
منابع مشابه
Lecithinase production by gramnegative bacteria.
Lecithinase production by microorganisms has been investigated in an attempt to use it in the classification of bacteria, and to associate formation with toxicity and virulence. The first record of this reaction was made when Nagler (1939) and Seifert (1939) observed, independently, the formation of an opalescence in human serum by the a toxin of Clostridium perfringens. It was soon found that ...
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Members of the families Neisseriaceae, Pasteurellaceae and Moraxellaceae are capable of transferrin-iron acquisition in the absence of siderophore production. They do so via expression of a bi-partite receptor composed of two dissimilar proteins, TbpA and TbpB. Both proteins are surface exposed, iron-regulated and capable of binding transferrin. However, other physiochemical, antigenic, and imm...
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The antibacterial property of serum, first reported by Nuttall in 1888, has attracted many investigators and an extensive literature has accumulated. The sera of most mammals tested have been found to possess bactericidal activity, but a notable exception is the mouse, whose serum, apparently through lack of complement, is unable to kill any of a number of bacterial strains which are sensitive ...
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Cells of Gram-negative bacteria undergo lysis when treated with lysozyme in the presence of ethylenediaminetetraacetic acid (EDTA) and tris buffer, as shown by Repaske. However, contrary to the prevalent assumption, lysis is not necessarily preceded by formation of a spheroplast as the cell wall is damaged. Treatment of Escherichia coli and Pseudomolzas mruginosa with the lytic system was shown...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1961
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.81.6.939-945.1961