Studies on Aerobaclllus Polymyxa IV. Factors Affecting the Production of Hydrogenase and the Hydrogenlyase Systems

Abstract

Once-washed cells of Aerobacillu8 polymyxa harvested from a medium containing peptone, yeast extract, glucose, phosphate, and magnesium sulphate, did not produce hydrogen from formate, glucose, or pyruvate nor was methylene blue reduced in the presence of gaseous hydrogen. Production of hydrogen from formate could be demonstrated in fermenting whole wheat mash and by once-washed cells of A.polymyxa grown on strained 10 per cent. wheat mash.