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Effects of scavengers for active oxygen species on photoresponse and photodynamic damages to a pigmented protozoan, Blepharisma
https://obihiro.repo.nii.ac.jp/records/1484
https://obihiro.repo.nii.ac.jp/records/14845cb6d36d-8eab-42e3-8ed1-2363b603d02f
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
v17-1-1.pdf (115.8 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2007-07-26 | |||||
| タイトル | ||||||
| タイトル | Effects of scavengers for active oxygen species on photoresponse and photodynamic damages to a pigmented protozoan, Blepharisma | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | Blepharisma | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | phototransduction | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | reactivated oxygen species | |||||
| 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 | |||||
| 著者 |
Yamamoto, Keisuke
× Yamamoto, Keisuke× Takada, Yuichi× Kida, Akemi× Akematsu, Takahiko× Kotsuki, Hiyoshizo× Matsuoka, Tatsuomi |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | In the absence of O2, the step-up photophobic response of Blepharisma japonicum is suppressed. To evaluate the possibility that reactivated oxygen species (ROS) produced by blepharismin photosensitization are involved in the primary transduction for the step-up photophobic response of B. japonicum, the effects of OH radical scavengers and the singlet oxygen quencher on the photophobic response were examined. The reagents used in the present assays hardly suppressed the step-up photophobic response, even though OH radical scavengers were rescued from the photodynamic killing of the cells. Alternatively, in the presence of an electron acceptor, the latency of the step-up photophobic response was prolonged. In addition, oxyblepharismin fluorescence was quenched slightly in the presence of free amino acids. These results support a hypothesis proposed by Lenci’s research group, that electron transfer from the first excited singlet state of blepharismin (or oxyblepharismin) to associated proteins may be involved in the primary phototransduction for the step-up photophobic response. | |||||
| 言語 | en | |||||
| 書誌情報 |
en : The journal of protozoology research 巻 17, 号 1, p. 1-8, 発行日 2007-06 |
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| 出版者 | ||||||
| 出版者 | National Research Center for Protozoan Diseases | |||||
| 言語 | en | |||||
| ISSN | ||||||
| 収録物識別子タイプ | PISSN | |||||
| 収録物識別子 | 09174427 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA10824856 | |||||
| 権利 | ||||||
| 言語 | en | |||||
| 権利情報 | National Research Center for Protozoan Diseases | |||||
| フォーマット | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | application/pdf | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
| 日本十進分類法 | ||||||
| 主題Scheme | NDC | |||||
| 主題 | 649 | |||||
