Combined effect of temperature and nutrients on protein turnover in Bacillus megaterium

Protein turnover was followed in populations of Bacillus megaterium growing in temperature range of 17-48 degrees C in different media. Higher temperature stimulated the protein turnover (expressed as the amount of protein degraded during 3.3 h) in all the media tested up to the optimal growth temperature (40-42 degrees C). Protein turnover in a medium containing amino acids continued to be stimulated by temperature even above this point; no further significant increase of turnover was found in the other media.