Establish a new model of P compounds and analysis of P cycle when phytoplankton is decomposed in lake water.
Project/Area Number |
25871086
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Multi-year Fund |
Research Field |
Hydraulic engineering
Civil and environmental engineering
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Research Institution | National Institute for Environmental Studies |
Principal Investigator |
SHINOHARA Ryuichiro 独立行政法人国立環境研究所, 地域環境研究センター, 研究員 (00610817)
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Project Period (FY) |
2013-04-01 – 2015-03-31
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Project Status |
Completed (Fiscal Year 2014)
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Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2013: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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Keywords | 核磁気共鳴装置 / リン化合物 / 核酸 / RNA-P / DNA-P / 核磁気共鳴装置(31P NMR) / 植物プランクトン / 懸濁物 / RNA、リン脂質 |
Outline of Final Research Achievements |
In the current study we analyzed phosphorus (P) compound composition in phytoplankton and established a model with the decay. I did the following experiments: (1) I analyzed P compound composition in Microcystis aeruginosa to analyze the compounds included. (2) I monitored P compounds composition in suspended particles and compared it with the biomass of M. aeruginosa. I attained the following results: (1)RNA-P accounted for the largest proportion in organic P compounds, but DNA-P was not included in M. aeruginosa. (2) P compounds composition in suspended particles shows that RNA-P exhibited largest P compound in suspended particles. When M. aeruginosa was the predominant phytoplankton species, DNA-P did not show large proportion. This fluctuation was consistent with the results of (1). Because RNA-P exhibited the largest P compound, changes in abundance of RNA-P are the most important component for P cycle in the water column.
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Report
(3 results)
Research Products
(8 results)
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[Presentation] 霞ヶ浦の懸濁物に含まれるリン化合物の動態について2014
Author(s)
篠原隆一郎, 今井章雄, 冨岡典子, 高津文人, 小松一弘, 佐藤貴之, 佐野友春, 三浦真吾, 霜鳥孝一
Organizer
応用生態工学会第18回大会
Place of Presentation
首都大学東京(東京都八王子市)
Year and Date
2014-09-18 – 2014-09-21
Related Report
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[Presentation] Temporal and Vertical Changes in Sediment P Compounds in Lake Kasumigaura, Japan2014
Author(s)
Shinohara R., Imai A., Kawasaki N., Komatsu K., Kohzu A., Miura S., Sano T., Satou T., Tomioka N., Shimotori K.
Organizer
Joint Aquatic Sciences Meeting
Place of Presentation
Oregon Convention Center, Portland, Oregon, USA.
Year and Date
2014-05-18 – 2014-05-23
Related Report
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