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Gamma irradiation effect Variation of photosynthetic activity of Euglena.
https://repo.qst.go.jp/records/43167
https://repo.qst.go.jp/records/43167c315effd-306c-4450-9f4c-dddf7f0ad166
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2003-10-17 | |||||
| タイトル | ||||||
| タイトル | Gamma irradiation effect Variation of photosynthetic activity of Euglena. | |||||
| 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× Takeda, Hiroshi× Fuma, Shoichi× Nakamura, Yuuji× P., Haeder Donat× 坂下 哲哉× 土居 雅広× 保田 浩志× 武田 洋× 府馬 正一× 中村 裕二 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Objective To study the effects of gamma-ray irradiation on carbon fixation (Specific production rate: SPR), CO2 utilization efficiency (CUE) and electron transfer rate (ETR) in the photosynthetic flagellate Euglena gracilis strain Z in a dose-response dependent manner. Methods Euglena cells were cultured in an inorganic nutrient medium containing ammoniium chloride or proteose peptone. Cells were exposed to gamma-ray at 5 doses (0, 100, 250, 350, 500 Gy for water). Five days after irradiation, three photosynthetic activities were measured. SPR, which is a carbon uptake rate per unit carbon mass, was determined by C13 tracer methodology. CUE was evaluated using a relation of carbon isotope fractionation in Calvin cycle. ETR in photosystem II (PS II) was measured by a chlorophyll fluorescence analysis. Results Even at a dose of 500 Gy, 80% of in the non-irradiated control at 500 Gy. Furthermore, the dose response of ETR was considerably different from the others. Conclution Our findings suggest that not only PS II but also the Calvin cycle in the photosynthetic system is affected by gamma ray irradiation. |
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| 書誌情報 |
Biomedical and Environmental Sciences 巻 15, p. 261-267, 発行日 2002 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0895-3988 | |||||
