Dynamics of selenium in agricultural ecosysytem

农业生态系统中硒的动态

• 批准号: 23580093
• 负责人: KIMURA Kazuhiko
• 金额: $ 3.58万
• 依托单位: Miyagi University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23580093/
• 关键词: 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; 形態別分析; 野菜; たい肥; 有機態セレン; 無機態セレン; 堆肥; 有機セレン

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.

研究了农业生态系统中硒的动态变化。有机硒采用含硒蛋氨酸和含硒半胱氨酸酵母。亚硒酸盐作为无机硒。将这些硒化合物施用于土壤中，种植小松。亚硒酸盐中含有蛋氨酸硒、亚硒酸盐和硒酸盐，土壤中的硒以亚硒酸盐为主。这说明亚硒酸盐在土壤中不发生变化，被植物吸收后形成硒酸盐和硒-蛋氨酸。另一方面，施用酵母的土壤中硒以亚硒酸盐为主，收获后未发现硒-蛋氨酸和硒-系统氨酸。小松含有的硒化合物与应用小松的亚硒酸盐相同。这些事实可能说明硒半胱氨酸和硒蛋氨酸因矿化而消失，以亚硒酸盐的形式存在。

项目成果

土壌肥料学研究室研究紹介

土壤肥料实验室研究简介

無機セレンとセレン含有アミノ酸の形態別分析

无机硒及含硒氨基酸的形态分析

• 发表时间: 2013
• 作者: Tomokazu Kurita;Yoichi Noda;Tomoko Takagi;Masako Osumi;and Koji Yoda.;藤井聖也,野田陽一,依田幸司;林田光弘,野田陽一,依田幸司;野田陽一,藤井聖也,依田幸司;藤井聖也,野田陽一,依田幸司;林田光弘,野田陽一,依田幸司;藤井聖也,野田陽一,依田幸司;Yoichi Noda and Koji Yoda;野田陽一;林田光弘,野田陽一,依田幸司;木村和彦;小西俊彦,野田陽一,依田幸司;木村和彦
• 通讯作者: 木村和彦

無機セレンのセレン含有アミノ酸の形態別分析

无机硒中含硒氨基酸的形态分析

• 发表时间: 2013
• 作者: Tomokazu Kurita;Yoichi Noda;Tomoko Takagi;Masako Osumi;and Koji Yoda.;藤井聖也,野田陽一,依田幸司;林田光弘,野田陽一,依田幸司;野田陽一,藤井聖也,依田幸司;藤井聖也,野田陽一,依田幸司;林田光弘,野田陽一,依田幸司;藤井聖也,野田陽一,依田幸司;Yoichi Noda and Koji Yoda;野田陽一;林田光弘,野田陽一,依田幸司;木村和彦
• 通讯作者: 木村和彦