The present invention provides novel microorganisms, Brevibacterium lactofermentum
CJJA21 (Accession No. KCCM-10222), which is resistant to sodium azide, and
Brevibacterium lactofermentum CJJA22 (Accession No. KCCM-10223), which is
resistant to -aminobutyric acid. These microorganisms are capable of producing
L-glutamine in a higher yield than the known strains. The present invention further
provides processes for producing L-glutamine using the microorganisms of the invention.