Abstract
Progesterone was examined for action on the virulence of Listeria monocytogenes and the toxicity of its haemolysin. Progesterone at concentrations between 5 and 20 micrograms/ml reduced the numbers of L. monocytogenes over the first two hours of growth. Virulence and haemolysin toxicity were assessed using the allantoic sac route of inoculation into embryonated hens eggs. Increasing the concentrations of progesterone in the culture medium resulted in a decrease in the mortality of chick embryos inoculated with either organisms, or cell-free extracts or purified haemolysin. Progesterone had no effect on the lethality of pre-formed haemolysin.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Zentralblatt für Bakteriologie, Mikrobiologie und Hygiene / A: Medical Microbiology, Infectious Diseases, Virology, Parasitology
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
