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Radiation Effects on Non-human Biota and Ecosystems - Researches in National Institute of Radiological Sciences, Japan
https://repo.qst.go.jp/records/62794
https://repo.qst.go.jp/records/62794f62e636a-d016-45a7-94d1-b7733b30227b
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2008-10-21 | |||||
| タイトル | ||||||
| タイトル | Radiation Effects on Non-human Biota and Ecosystems - Researches in National Institute of Radiological Sciences, Japan | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_c94f | |||||
| 資源タイプ | conference object | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Yoshida, Satoshi
× Yoshida, Satoshi× Ishii, Nobuyoshi× Ishikawa, Yuuji× Kawaguchi, Isao× Kubota, Yoshihisa× Tagami, Keiko× Takeda, Hiroshi× Doi, Masahiro× Nakamori, Taizo× Ban-nai, Tadaaki× Fujimori, Akira× Fuma, Shoichi× Maruyama, Kouichi× Yasuda, Takako× Yanagisawa, Kei× Miyamoto, Kiriko× Watanabe, Yoshito× 吉田 聡× 石井 伸昌× 石川 裕二× 川口 勇生× 久保田 善久× 田上 恵子× 武田 洋× 土居 雅広× 中森 泰三× 坂内 忠明× 藤森 亮× 府馬 正一× 丸山 耕一× 保田 隆子× 柳澤 啓× 宮本 霧子× 渡辺 嘉人 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Recently, the importance of radiological protection of the environment is increasingly recognized internationally. However, the relevant scientific data are extremely limited, especially for Asian environment. This paper summarizes research activities in National Institute of Radiological Sciences (NIRS) for evaluation of the radiation effects on selected terrestrial and aquatic organisms as well as the ecosystems. Seven organisms, conifers, fungi, earthworms, collembolans, algae, daphnia and Medaka are presently selected to study. Most of them play important roles in Japanese ecosystems and are possibly useful for bio-indicator of the radiation effects. For the estimation of possible radiation dose, transfers of radionuclides and related elements from medium to organisms are evaluated. Dose-effect relationships of acute gamma radiation on the survival, growth, and reproduction of selected organisms have been studied. Studies on the effect of chronic gamma radiation at low dose rate were also started. In order to understand the mechanism of radiation effects and to find possible indicators of the effects, information of genome- and metagenome-wide gene expression obtained by the High Coverage Expression Profiling (HiCEP) has been collected. Evaluation of ecological effects of radiation is more challenging task. Study methods by using a microcosm, i.e. an experimental model ecosystem consisting of three microorganisms, were established, and an index for the holistic evaluation of effects on various ecological parameters, such as sizes of population or community was proposed. The microcosm has been simulated for its population dynamics, and mass and energy budgets as a computer simulation code. Developments of more complicated and practical model ecosystems have been started. The Denaturant Gradient Gel Electrophoresis (DGGE) has been applied on soil bacterial community in order to evaluate the radiation effects on soil ecosystems. | |||||
| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | The 16th Pacific Basin Nuclear Conference | |||||
| 発表年月日 | ||||||
| 日付 | 2008-10-18 | |||||
| 日付タイプ | Issued | |||||
