2009 Fiscal Year Final Research Report
Which of andosol's components can adsorb DNA molecules
| Project/Area Number |
19380044
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Plant nutrition/Soil science
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| Research Institution | Kyushu University |
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Principal Investigator |
SAEKI Kazutoshi Kyushu University, 生物環境調節センター, 准教授 (30284780)
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| Co-Investigator(Kenkyū-buntansha) |
WADA Shin-ichiro 九州大学, 農学研究院, 教授 (60108678)
SAKAI Masao 鹿児島大学, 農学部, 教授 (20225775)
KUNITO Takashi 信州大学, 理学部, 准教授 (90304659)
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| Project Period (FY) |
2007 – 2009
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| Keywords | DNA / 吸着 / 黒ボク土 / アロフェン / 土壌化学 |
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| Research Abstract |
This study investigated the adsorptions of DNA molecules by real soils and variable-charged soil constituents such as goethite, allophane, and humic acids for understanding risk assessment for release of the genetically modified organisms and for development of DNA extraction efficiency from soils in the analysis of soil microbial communities using culture-independent methods. The DNA adsorption on an andosol used in this study was much larger than those on a fluvisol and an acrisol. The changes in DNA adsorptions by the decrease in organic matter and oxide minerals implied that these oxide minerals among soil constituents are one of the main media to adsorb DNA molecules in soil environments. The adsorptions of DNA by andosols and allophane were investigated as function of solution pH, ionic strength in solution and some solutes. These results suggested that there are several DNA adsorption mechanisms in soil.
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Research Products
(18 results)
