The invention discloses a proteus mirabilis strain V7 capable of eliminating ammonia nitrogen in water environment. The strain is preserved in the Chinese ordinary microorganism culture preservation and administration center of microbiology institute of Chinese Academy of Sciences on November 06th, 2010, and the preservation number is CGMCC No. 4312. The strain is capable of rapidly and efficiently lowering the concentration of ammonia nitrogen in low-salt and high-salt water environment, and ammonia monooxygenase (amoA) genes of the proteus mirabilis participate in the process that ammonia nitrogen is degraded by the proteus mirabilis.
; 王巧宁
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