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Responses of the bacterial community to chronic gamma radiation in a rice paddy ecosystem
https://repo.qst.go.jp/records/46065
https://repo.qst.go.jp/records/4606508967d33-a3ef-4065-916a-e21731f9961a
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2011-05-23 | |||||
| タイトル | ||||||
| タイトル | Responses of the bacterial community to chronic gamma radiation in a rice paddy ecosystem | |||||
| 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 |
Ishii, Nobuyoshi
× Ishii, Nobuyoshi× Fuma, Shoichi× Tagami, Keiko× Takeda, Shino× Shikano, Shuichi× 石井 伸昌× 府馬 正一× 田上 恵子× 武田 志乃 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Purpose: Public concern about radiation protection of the environment and non-human species is increasing. The potential impact of chronic gamma radiation on the bacterial community in a rice paddy ecosystem was investigated. Materials and methods: Paddy field microcosm samples were continuously exposed at a dose rate of 1 Gy day-1 for 5 days after which the bacterial community structures in them were compared with those of unirradiated control samples by denaturing gradient gel electrophoresis (DGGE) of the 16S ribosomal ribonucleic acid (rRNA) gene. Dissolved ions in ponding waters of the microcosm samples were determined by ion chromatography. Results: The DGGE band profiles were clearly different between the control and exposure samples. Sequencing of selected DGGE bands revealed that a specific species of the genus Clostridium and of the genus Massilia were grown under radiation exposure. Additionally, the concentrations of sulfate ion in the ponding water of the microcosm samples increased under radiation exposure. Concentrations of Na+, Ca2+, and F- inversely decreased. Conclusions: The data presented suggest that chronic gamma radiation affects the bacterial community structure and material cycles in the rice paddy ecosystem. |
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| 書誌情報 |
International Journal of Radiation Biology 巻 87, 号 7, p. 663-672, 発行日 2011-02 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0955-3002 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.3109/09553002.2010.549534 | |||||
