THE IMPACT OF HEAVY METALS IN ATMOSPHERIC FINE DUST ON SOIL MICROBIAL COMMUNITY
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- 발행기관
- 국제과학영재학회 바로가기
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- 간행물
- APEC Youth Scientist Journal 바로가기
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- 통권
- Vol. 7 No.2 (2015.07)바로가기
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- 페이지
- pp.104-119
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- 저자
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- 언어
- 영어(ENG)
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- URL
- https://www.earticle.net/Article/A328980
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원문정보
초록
- 영어
- Atmospheric fine dust is an emerging problem as a result of growing industrialization and environmental changes. In this study, fine dust could be an alternative fact to contaminate soil property. The soil exposed to fine dust was significantly changed in its porosity as compared with the control. A subsequent experiment revealed that fine dust restricted the production of soil bacteria through the increment of soil porosity and that increased porosity is closely associated to the production of calcium carbonate by soil bacteria. In situ analyses for soils exposed to high amount of atmospheric fine dust revealed the significant attenuation of five different microbial species, which abundantly exists within the ground soil. Moreover, fine dust-mediated growth reduction of soil bacteria resulted in the accelerated growth of E.coli, a bacterial strain. Co-culture of E.coli with soil extracts demonstrated that soil contents significantly lowered the growth rate of E.coli, indicating that soil bacteria is responsible for protecting water quality from the opportunistic bacterial infections. Collectively the data demonstrate that the topic for atmospheric fine dust could be worth deliberation for protecting ground water preservation as a possible resource of drinking water.
목차
ABSTRACT
1. INTRODUCTION
2. MATERIALS AND METHODS
2.1. Separation and Identification of Fine Dust
2.2. Precipitation by water substitution reaction system: Accelerated raindrop formation depending on fme dust contamination.
2.3. Measurement of soil porosity
2.4. Bacterial culture and growth
2.5. Extraction of soil materials with bactericidal activity
2.6. Detection of soil DNA content (Picogreen assay)
2.7. Genomic DNA purification of soil microorganism and quantitative real-time PCR
2.8. Statistical analyses
3. RESULTS
3.2. Fine dust increases soil porosity
3.3. The soil porosity associated with the growth of soil bacteria
3.4. Altered microbial ecosystem in ground
3.5. Inhibitory effect of soil bacteria on infectious opportunistic bacteria
4. DISCUSSION
5. CONCLUSION
6. ACKNOWLEDGEMENTS
7. REFERNECES
8. TABLE
키워드
Fine dust Heavy metals Precipitation dissipation Soil porosity Microbial ecosystem Calcium carbonate (CaCO3)저자
간행물 정보
발행기관
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- 발행기관명
- 국제과학영재학회 [The Society for the International Gifted in Science]
- 설립연도
- 2006
- 분야
- 자연과학>자연과학일반
- 소개
- 과학영재를 위한 연구 활동을 통하여 과학영재를 발굴하고, 발굴된 과학영재가 과학 분야의 관련 연구 활동을 할 수 있도록 지원하여, 이들이 과학 관련 분야의 진로를 선택하도록 장려함으로써 국제경쟁력을 갖춘 우수 과학기술인을 배출하고 국가 경제발전 및 문화창달과 세계 과학 발전에 기여함을 목적으로 한다.
간행물
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- 간행물명
- APEC Youth Scientist Journal [APEC 청소년 과학학술지]
- 간기
- 반년간
- pISSN
- 2005-5625
- 수록기간
- 2009~2022
- 십진분류
- KDC 405 DDC 505
이 권호 내 다른 논문 / APEC Youth Scientist Journal Vol. 7 No.2
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