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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국미생물생명공학회 Journal of Microbiology and Biotechnology Journal of Microbiology and Biotechnology 제28권 제10호
- 발행연도
- 2018.1
- 수록면
- 1,706 - 1,715 (10page)
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Several non-methylotrophic bacteria have been reported to improve the growth and activity of methanotrophs; however, their interactions remain to be elucidated. We investigated the interaction between Methylocystis sp. M6 and Microbacterium sp. NM2. A batch co-culture experiment showed that NM2 markedly increased the biomass and methane removal of M6. qPCR analysis revealed that NM2 enhanced both the growth and methane-monooxygenase gene expression of M6. A fed-batch experiment showed that co-culture was more efficient in removing methane than M6 alone (28.4 vs. 18.8 μmol·l-1·d-1), although the biomass levels were similar. A starvation experiment for 21 days showed that M6 population remained stable while NM2 population decreased by 66% in co-culture, but the results were opposite in pure cultures, indicating that M6 may cross-feed growth substrates from NM2. These results indicate that M6 apparently had no negative effect on NM2 when M6 actively proliferated with methane. Interestingly, a batch experiment involving a dialysis membrane indicates that physical proximity between NM2 and M6 is required for such biomass and methane removal enhancement. Collectively, the observed interaction is beneficial to the methanotroph but adversely affects the non-methylotroph; moreover, it requires physical proximity, suggesting a tight association between methanotrophs and non-methylotrophs in natural environments.
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참고문헌 (40)
참고문헌 신청
Hanson RS / 1996 / Methanotrophic bacteria / Microbiol. Rev 60:439~471
Semrau JD / 2010 / Methanotrophs and copper / FEMS Microbiol. Rev 34:496~531
Fox BG / 1990 / Haloalkene oxidation by the soluble methane monooxygenase from Methylosinus trichosporium OB3b : mechanistic and environmental implications / Biochemistry 29:6419~6427
Burrows KJ / 1984 / Substrate specificities of the soluble and particulate methane monooxygenases of Methylosinus trichosporium OB3b / Microbiology 130:3327~3333
Colby J / 1977 / The soluble methane mono-oxygenase of Methylococcus capsulatus (Bath). Its ability to oxygenate n-alkanes, n-alkenes, ethers, and alicyclic, aromatic and heterocyclic compounds / Biochem. J 165:395~402
Semrau JD / 2010 / Methanotrophs and copper / FEMS Microbiol. Rev 34:496~531
Fox BG / 1990 / Haloalkene oxidation by the soluble methane monooxygenase from Methylosinus trichosporium OB3b : mechanistic and environmental implications / Biochemistry 29:6419~6427
Burrows KJ / 1984 / Substrate specificities of the soluble and particulate methane monooxygenases of Methylosinus trichosporium OB3b / Microbiology 130:3327~3333
Colby J / 1977 / The soluble methane mono-oxygenase of Methylococcus capsulatus (Bath). Its ability to oxygenate n-alkanes, n-alkenes, ethers, and alicyclic, aromatic and heterocyclic compounds / Biochem. J 165:395~402
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