지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국미생물생명공학회 Journal of Microbiology and Biotechnology Journal of Microbiology and Biotechnology 제22권 제9호
- 발행연도
- 2012.1
- 수록면
- 1,264 - 1,270 (7page)
이용수
초록· 키워드
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The ecotoxicological effects of nanomaterials on animal,plant, and soil microorganisms have been widely investigated; however, the nanotoxic effects of plant-soil interactive systems are still largely unknown. In the present study, the effects of ZnO nanoparticles (NPs) on the soil-plant interactive system were estimated. The growth of plant seedlings in the presence of different concentrations of ZnO NPs within microcosm soil (M)and natural soil (NS) was compared. Changes in dehydrogenase activity (DHA) and soil bacterial community diversity were estimated based on the microcosm with plants (M+P) and microcosm without plants (M-P) in different concentrations of ZnO NPs treatment. The shoot growth of M+P and NS+P was significantly inhibited by 24% and 31.5% relative to the control at a ZnO NPs concentration of 1,000 mg/kg. The DHA levels decreased following increased ZnO NPs concentration. Specifically,these levels were significantly reduced from 100 mg/kg in M-P and only 1,000 mg/kg in M+P. Different clustering groups of M+P and M-P were observed in the principal component analysis (PCA). Therefore, the M-P’s soil bacterial population may have more toxic effects at a high dose of ZnO NPs than M+P’s. The plant and activation of soil bacteria in the M+P may have a less toxic interactive effect on each of the soil bacterial populations and plant growth by the ZnO NPs attachment or absorption of plant roots surface. The soil-plant interactive system might help decrease the toxic effects of ZnO NPs on the rhizobacteria population.
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참고문헌 (24)
참고문헌 신청
Brunner, T. J. / 2006 / In vitro cytotoxicity of oxide nanoparticles: Comparison to asbestos, silica, and the effect of particle solubility / Environ. Sci. Technol 40 : 4374
Colvin, V. L. / 2003 / The potential environmental impact of engineered nanomaterials / Nat. Biotechnol 21 : 1116 ~ 1170
Ge, Y. / 2011 / Evidence for negative effects of TiO2 and ZnO nanoparticles on soil bacterial communities / Environ. Sci. Technol 45 : 1659 ~ 1664
Gottschalk, F. / 2009 / Modelled environmental concentrations of engineered nanomaterials (TiO2, ZnO, Ag, CNT, fullerenes) for different regions / Environ. Sci. Technol 43 :
Griffiths, B. S. / 1999 / Microbial community dynamics associated with rhizosphere carbon flow / Soil Biol. Biochem 31 : 145 ~ 153
Colvin, V. L. / 2003 / The potential environmental impact of engineered nanomaterials / Nat. Biotechnol 21 : 1116 ~ 1170
Ge, Y. / 2011 / Evidence for negative effects of TiO2 and ZnO nanoparticles on soil bacterial communities / Environ. Sci. Technol 45 : 1659 ~ 1664
Gottschalk, F. / 2009 / Modelled environmental concentrations of engineered nanomaterials (TiO2, ZnO, Ag, CNT, fullerenes) for different regions / Environ. Sci. Technol 43 :
Griffiths, B. S. / 1999 / Microbial community dynamics associated with rhizosphere carbon flow / Soil Biol. Biochem 31 : 145 ~ 153
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