Method for producing L-arginine or L-lysine by fermentation

摘要

L-Arginine or L-lysine is produced by culturing a coryneform bacterium having an L-arginine- or L-lysine-producing ability and modified so that glutamine synthetase activity is enhanced, e.g., a coryneform bacterium which is modified so that activity regulation of glutamine synthetase by adenylylation is eliminated, in a medium to produce and accumulate L-arginine or L-lysine in the medium and collecting the L-arginine or L-lysine from the medium.