The effect of carbohydrates on the sporogenesis of Clostridium perfringens and Bacillus anthracis.
The authors studied the effect of a number of carbohydrates on the sporogenesis of Clostridium perfringens and Bacillus anthracis (vaccine strain STI) as probable soil factors capable of influencing the duration of survival of these causative agents in the external environment. Differences in the effect of the same sugars on the formation of spores by these microorganisms and clearly expressed sporogenesis-inhibiting effect of glucose (and also of lactose in clostridia) have been demonstrated. The analysis of the peculiarities of sporogenesis under unadjusted and stabilized pH values provides a basis for regarding the "glucose effect" as repression of sporogenesis in the given causative agent, but not as inhibition resulting from considerable acidification of the culture medium. This is essential for the soil conditions characterized by high buffer capacity. The ecological value of substances of carbohydrate nature consists in their important role in the energetics and trophicity of microbial coenoses of the soil which cannot fail reflecting on the fate of pathogenic microorganisms in the soil.
Volkova
V P
VP
Department of Epidemiology, Medical Postgraduate Institute Kiev, USSR.
Verner
O M
OM
Sinyak
K M
KM
D001408:Bacillus anthracis / Q000187:drug effects* / Q000502:physiology; D002241:Carbohydrates / Q000494:pharmacology*; D003016:Clostridium perfringens / Q000187:drug effects* / Q000502:physiology; D006863:Hydrogen-Ion Concentration; D012988:Soil Microbiology; D013171:Spores, Bacterial / Q000187:drug effects / Q000254:growth & development
D002241:Carbohydrates