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タイトル: | Intake of Radionuclides in the tree of Fukushima Forests 2. Study of radiocesium flow to poplar seedlings as a model tree |
著者: | Aoki, Shoko Nonaka, Miki Yasukawa, Chisato Itakura, Masateru Tsubokura, Masaharu Baba, Kei’ichi Ohbayashi, Hiroya Seyama, Tomoko Uehara, Iwao Kaida, Rumi Taji, Teruaki Sakata, Yoichi Hayashi, Takahisa |
著者名の別形: | 馬場, 啓一 |
キーワード: | heartwood perforated xylem radiocesium infiltration radiocesium movement xyloglucan |
発行日: | Sep-2019 |
出版者: | MDPI AG |
誌名: | Forests |
巻: | 10 |
号: | 9 |
開始ページ: | 736 |
終了ページ: | 744 |
抄録: | After the nuclear power plant accident in Fukushima, radionuclides were deposited over a large area of local forest. However, almost nothing is known about radionuclide infiltration into trees. Here, we used poplar seedlings as a model to show that radiocesium can enter directly into leaves and bark, moving via ray cells through the symplastic pathways to the xylem and concentrating around the meristems, cork, and vascular cambium. During induced potassium incorporation and reduced seasonal growth, the radiocesium in the meristems of stems mainly passes into abscission tissues such as leaves and heartwood. There is no turnover of radiocesium after it enters the heartwood. |
著作権等: | © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
URI: | http://hdl.handle.net/2433/246199 |
DOI(出版社版): | 10.3390/f10090736 |
出現コレクション: | 学術雑誌掲載論文等 |
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