Some Physiological Aspects of Listeria monocytogenes Isolated from Differint Clinical Cases

The Physiological aspects of the bacterium Listeria monocytogenes were studied on the isolates of the of bacterium isolation from placental and cervical swabs collected from women with abortions and preterm labours and from Cerbero-Spinal Fluid (CSF) of neonates suspectedly infected with purulent meningitis.
The results reveated that all isolates have the ability to grow at different temperatures 4, 37 and 45 C and tolerate two different concentrations of salt 6.5 % and 10% . the effect of different concentration of chemicals on its growth were also tested.
The isolates showed ability to grow in 0.1 % KNO2,0.02 ,0.05 % of sodium azide but failed to grow in (3.75 ,5.0 %) of KCN. As well as isolates were able to grow and reduce potassium tellurite and tetrazolium chloride with concentrations 0.1 ,0.5 % and 0.01 , 0.1 % respectively.