Biogeochemical characteristics of oligosaccharides in seawater as model compounds of low-molecular weight dissolved organic matter
Project/Area Number |
24510013
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Environmental dynamic analysis
|
Research Institution | Shizuoka University |
Principal Investigator |
Sohrin Rumi 静岡大学, 理学部, 准教授 (00343195)
|
Project Period (FY) |
2012-04-01 – 2016-03-31
|
Project Status |
Completed (Fiscal Year 2015)
|
Budget Amount *help |
¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2015: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
|
Keywords | オリゴ糖 / 海洋生態系 / 生元素循環 |
Outline of Final Research Achievements |
For better understanding of the dynamics of low-molecular weight dissolved organic matter in marine environments, we developed a novel technique to determine oligosaccharides concentrations in seawater. Seawater samples were desalted by solid phase extraction using with a graphite carbon column and evaporated to concentrate oligosaccharides, then analyzed by high performance anion exchange chromatography-pulsed amperometric detection. We determined the concentrations of sucrose, maltose, trehalose and lactulose in the epipelagic layer of the Suruga Bay, and detected other six unknown-oligosaccharides. MPN survey indicated high abundance of prokaryotes in the Suruga Bay that were grown on sucrose, maltose and trehalose. Our findings demonstrated, for the first time, bottom-up controls of prokaryotes by dissolved organic matter on a molecular level in seawater.
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Report
(5 results)
Research Products
(3 results)
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[Presentation] 駿河湾における繊毛虫の分布2016
Author(s)
宗林留美, 鬼頭信幸, 吉川 尚, 西川 淳, 松浦弘行
Organizer
2016年度日本海洋学会春季大会
Place of Presentation
東京大学本郷キャンパス(東京都文京区)
Year and Date
2016-03-14 – 2016-03-18
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[Presentation] 海水中での二糖の分解特性
Author(s)
宗林留美, 永翁一代, 加藤憲二, 森 愛理, 鈴木 款
Organizer
2012年度日本海洋学会秋季大会
Place of Presentation
東海大学清水キャンパス(静岡県)
Related Report