ANTIMICROBIAL ACTIVITY OF LYSOZYME TOWARDS LISTERIA MONOCYTOGENES AT VARIOUS MEDIUM CONDITIONS

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Abstract

The in vitro antimicrobial action of human leukocyte lysozyme from on gram-positive bacterium Listeria monocytogenes under various medium conditions was studied. It was shown that in a low ionic strength buffer (without NaCl), lower doses of lysozyme are required to reveal the microbicidal effect than in the case of 0.075 or 0.15 M NaCl. The bacterial growth phase does not significantly affect the antimicrobial activity of lysozyme. The results obtained are consistent with the two-stage mechanism of the antimicrobial action of lysozyme, which includes enzymatic and non-enzymatic action.

About the authors

M N Berlov

Institute of Experimental Medicine, Saint Petersburg

S V Legkovoy

Saint Petersburg State University, Saint Petersburg

E S Umnyakova

Institute of Experimental Medicine, Saint Petersburg

V N Kokryakov

Institute of Experimental Medicine, Saint Petersburg; Saint Petersburg State University, Saint Petersburg

References

  1. Selsted ME, Martinez RJ. Lysozyme: primary bactericidin in human plasma serum active against Bacillus subtilus. Infect. Immun. 1978;20:782-791.
  2. Düring K, Porsch P, Mahn A, et al. The non-enzymatic microbicidal activity of lysozymes. FEBS Lett. 1999;449:93-100.
  3. Ibrahim HR, Matsuzaki T, Aoki T. Genetic evidence that antibacterial activity of lysozyme is independent of its catalytic function. FEBS Lett. 2001;506:27-32.
  4. Davies RC, Neuberger A, Wilson BM. The dependence of lysozyme activity on pH and ionic strength. Biochim. Biophys. Acta. 1969;178:294-305.
  5. Berlov MN, Korableva ES, Andreeva YV, et al. Lactoferrin from canine neutrophils: isolation and physicochemical and antimicrobial properties. Biochemistry (Moscow). 2007;72:445-451.
  6. Muschel LH, Jackson JE. The reactivity of serum against protoplasts and spheroplasts. J. Immunol. 1966;97:46-51.

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Copyright (c) 2019 Berlov M.N., Legkovoy S.V., Umnyakova E.S., Kokryakov V.N.

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