Notably, L. plantarum
VL103(pMH::pycA) converted 23.8% of glucose to succinic acid.
This strain exhibited the highest increase in enzyme activity and
succinic acid yield among the recombinant strains overexpressing
each enzyme. These results demonstrated that PC overexpression
is effective for constructing improved succinic acid-producing L.
plantarum strains and suggest that PC is a key enzyme for succinic
acid production in this model microorganism.