Hyperthermia Induced Polyphosphate Changes in Propionibacterium acnes as Studied by 31P NMR

Abstract
The polyphosphate component in 31P NMR spectra of the gram-positive Propionibacterium acnes increased after hyperthermia treatment. The cells were exposed to temperatures in the interval from 15.degree. C to 45.degree. C. The amount of polyphosphate increased with increasing temperature. There were no temperature induced changes in the other phosphorous components seen in the spectra with exception of a decrease in ATP for higher tempertures. The increase in polyphosphates was less than that obtained from cells irradiated by near ultra-violet light.