Autolysis of Neisseria gonorrhoeae. Relation between mechanical stability and viability.
The relationship between the mechanical stability and the viability of N. gonorrhoeae (Type 4) in suspension was investigated. A correlation between viability and optical density recordings was often found. However, in spite of increased mechanical stability in solutions with low pH (5-2) or containing Cu++ or sucrose (10 per cent.), these environments were toxic to the gonococci. A viability preserving effect by Mg++ (4 mM), Ca++ (4 mM), spermine (0-5 mM), polyvinylpyrrolidone (10 per cent.), and low temperature (4 degrees C) was demonstrated. The possibility of improving transport media for gonococci is discussed.
D001433:Bacteriolysis / Q000187:drug effects; D003300:Copper / Q000494:pharmacology; D006863:Hydrogen-Ion Concentration; D008274:Magnesium / Q000494:pharmacology; D009344:Neisseria gonorrhoeae / Q000187:drug effects / Q000502:physiology*; D009997:Osmotic Pressure; D011205:Povidone / Q000494:pharmacology; D013096:Spermine / Q000494:pharmacology; D013395:Sucrose / Q000494:pharmacology; D013696:Temperature
D013096:Spermine; D013395:Sucrose; D003300:Copper; D011205:Povidone; D008274:Magnesium