1988Infection and ImmunityOpen access

Levels of Listeria monocytogenes hemolysin are not directly proportional to virulence in experimental infections of mice

Sophia Kathariou, J. Rocourt, Herbert Hof, Werner Goebel

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Abstract

The sulfhydryl-activated hemolysin of Listeria monocytogenes has been implicated in the virulence of the bacteria. Although loss of hemolytic activity by means of transposon mutagenesis is accompanied by loss of virulence in the mouse infection model, a direct relationship between in vitro production of hemolysin and virulence was not observed. Noticeable deviations in the extent of hemolysin production appeared to leave virulence unaffected.

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What this paper is about

The sulfhydryl-activated hemolysin of Listeria monocytogenes has been implicated in the virulence of the bacteria. Although loss of hemolytic activity by means of transposon mutagenesis is accompanied by loss of virulence in the mouse infection model, a direct relationship between in vitro production of hemolysin and virulence was not observed. Noticeable deviations in the extent of hemolysin production appeared to leave virulence unaffected.

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Available abstract

The sulfhydryl-activated hemolysin of Listeria monocytogenes has been implicated in the virulence of the bacteria. Although loss of hemolytic activity by means of transposon mutagenesis is accompanied by loss of virulence in the mouse infection model, a direct relationship between in vitro production of hemolysin and virulence was not observed. Noticeable deviations in the extent of hemolysin production appeared to leave virulence unaffected.

Key concepts: Virulence, Listeria monocytogenes, Hemolysin, Biology, Microbiology, Listeria, Mutagenesis, Transposon mutagenesis

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