| 摘要 |
PROBLEM TO BE SOLVED: To increase production efficiency, when a useful substance, such as a L-amino acid, is produced by a fermentation process in whichγ-proteobacterium is used. SOLUTION: A method for producing a target substance by utilizing a microorganism comprises culturing theγ-proteobacterium in a culture medium, forming and accumulating the target substance in the culture medium or cell bodies of the bacterium, and collecting the target substance, wherein a strain in which an Arc A gene is destructed on its chromosome and therefore an Arc A protein does not function in its cell body is, for example, used as theγ-proteobacterium. COPYRIGHT: (C)2004,JPO
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