Mutant microorganism with high ability of producing putrescine and preparation of putrescine using same

Abstract

The present invention relates to a mutant microorganism having a high ability of producing putrescine in which genes associated with the decomposition or use pathway of putrescine are weakened or deleted, in a microorganism having a putrescine production metabolic pathway, and to a method for preparing putrescine with a high yield rate by culturing the mutant microorganism under an anaerobic condition. The mutant microorganism having a high ability of producing putrescine according to the present invention is useful for the high-yield production of putrescine and has broad industrial application.