2013 Fiscal Year Final Research Report
Dynamics of selenium in agricultural ecosysytem
| Project/Area Number |
23580093
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Plant nutrition/Soil science
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| Research Institution | Miyagi University |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2013
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| Keywords | セレン / 農耕地 / セレノシステイン / セレノメチオニン / セレン酸 / 亜セレン酸 |
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| Research Abstract |
Dynamics of selenium in agricultural ecosystem were investigated. As organic selenium, seleno-methionine and seleno-cysteine cotaining yeast were used. As inorganic selenium, selenite were used. These selenium compounds were applied to soil and Komatuna were grown.
Selenite applied Komatsuna contained seleno-methionine, selenite and selenate, and selenium in soil was mostly selenite. This shows selenite do not change in soil and after absoption by plant, selenate and seleno-methionine was formed.
On the other hand, selenium in yeast applied soil was mostly selenite, and no seleno-methionine and seleno-systeine were found after harvest. Komatsuna contained the same selenium compound as selenite applied Komatsuna. These facts may show seleno-cysteine and seleno-methionine were disappeared due to mineralization and existed as selenite.
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