WEKO3
アイテム
Effects of gamma-ray and high energy carbon ion irradiation on swimming velocity of Euglena gracilis.
https://repo.qst.go.jp/records/43207
https://repo.qst.go.jp/records/432072bc23225-2af3-4a6c-9e90-595ec3264207
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2003-10-20 | |||||
| タイトル | ||||||
| タイトル | Effects of gamma-ray and high energy carbon ion irradiation on swimming velocity of Euglena gracilis. | |||||
| 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_6501 | |||||
| 資源タイプ | journal article | |||||
| 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 |
Sakashita, Tetsuya
× Sakashita, Tetsuya× Doi, Masahiro× Yasuda, Hiroshi× Fuma, Shoichi× P., Haeder Donat× 坂下 哲哉× 土居 雅広× 保田 浩志× 府馬 正一 |
|||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The effects of gamma-ray and high energy carbon ion irradiation on the swimming velocity of the photosynthetic flagellate Euglena gracilis strain Z were studied, focusing on a dose-effect relationship. Cells were exposed to Co60 gamma-rays at 6 doses of 10, 15, 20, 40, 100 and 200 Gy for water, and also to 290 MeV/amu carbon ions from the Heavy Ion Medical Accelerator in Chiba at 7 doses (5, 10, 15, 20, 50, 100 and 200 Gy for water). The swimming velocity was measured by a biomonitoring system, called ECOTOX. The swimming velocities of Euglena gracilis cells were significantly decreased by >40 Gy gamma-rays and >5 Gy carbon ions, respectively. The 50% effective doses for inhibitaion, 34+-4 Gy (gamma-rays) and 13+-1 Gy (290 MeV/amu carbon ions), were estimated from the best fit to data of the logistic model. The relative biological effectiveness (2.6+-0.4) was calculated by the ratio of 50% effective doses. The inhibitation of the swimming velocity of the cells irradiated with gamma-rays was still present after 3 days, while recovery of the cells irradiated with shown in the cells exposed to 290 MeV/amu carbon ions. It is suggested that ionizing radiation inhibits ATP production and/or increases frictional drag on beating of the flagellum, thus decreasing swimming velocity. | |||||
| 書誌情報 |
Advances in Space Research 巻 30, 号 4, p. 1023-1030, 発行日 2002 |
|||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0273-1177 | |||||
