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Tracer experiment using 42K+ and 137Cs+ revealed the different transport rates of potassium and caesium within rice roots
http://hdl.handle.net/2261/59076
http://hdl.handle.net/2261/5907670609d09-f68f-4341-8c11-14c30e4507b3
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
FP15245.pdf (1.5 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2016-01-13 | |||||
| タイトル | ||||||
| タイトル | Tracer experiment using 42K+ and 137Cs+ revealed the different transport rates of potassium and caesium within rice roots | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | cesium | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | channel blocker | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | deficiency | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | ion uptake | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | live-imaging | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | selectivity | |||||
| 資源タイプ | ||||||
| 資源 | http://purl.org/coar/resource_type/c_6501 | |||||
| タイプ | journal article | |||||
| 著者 |
Kobayashi, Natsuko I.
× Kobayashi, Natsuko I.× Sugita, Ryohei× Nobori, Tatsuya× Tanoi, Keitaro× Nakanishi, Tomoko M. |
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| 著者所属 | ||||||
| 著者所属 | Graduate School of Agricultural and Life Sciences, The University of Tokyo | |||||
| 著者所属 | ||||||
| 著者所属 | Department of Plant Microbe Interactions, Max Planck Institute for Plant Breeding Research | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The differences in the transport characteristics in planta between potassium (K+) and caesium (Cs+) was investigated using their radionuclides, 42K+ and 137Cs+. A tracer experiment using nutrient solutions supplemented with 42K and 137Cs revealed that the ratio of the root’s K+ uptake rate to its Cs+ uptake rate was 7–11 times higher than the K+ : Cs+ concentration ratio in the solution, and the number was varied depending on the K concentration in the solution and also on the growth condition. After entering through the root tissues, the 42K+ : 137Cs+ ratio in the shoots was 4.28 times higher than the value in the roots. However, the 42K+ : 137Cs+ ratio in each leaf did not differ significantly, indicating that the primary transport of K+ and Cs+ in the shoots are similarly regulated. In contrast, among the radionuclides stored in the roots over 4 h, 30% of the 42K+ was exported from the roots over the following hour, whereas only 8% of 137Cs+ was exported. In addition, within the xylem, K+ was shown to travel slowly, whereas Cs+ passed quickly through the roots into the shoots. In conclusion, our study demonstrated very different transport patterns for the two ions in the root tissues. | |||||
| 書誌情報 |
Functional Plant Biology 発行日 2015-12-15 |
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| 著者版フラグ | ||||||
| 値 | author | |||||
| 出版者 | ||||||
| 出版者 | CSIRO Publishing | |||||
