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Transcriptional regulation of genes encoding subunits of photosystem I during acclimation to high-light conditions in Synechocystis sp PCC 6803
https://sucra.repo.nii.ac.jp/records/12492
https://sucra.repo.nii.ac.jp/records/12492ac389fae-e835-4430-bfdd-31dbc74ec81f
名前 / ファイル | ライセンス | アクション |
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A1001147.pdf (508.5 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2007-03-08 | |||||
タイトル | ||||||
タイトル | Transcriptional regulation of genes encoding subunits of photosystem I during acclimation to high-light conditions in Synechocystis sp PCC 6803 | |||||
言語 | ||||||
言語 | jpn | |||||
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 |
Muramatsu, Masayuki
× Muramatsu, Masayuki× 日原, 由香子 |
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著者 ローマ字 | ||||||
Muramatsu, Masayuki | ||||||
著者 ローマ字 | ||||||
Hihara, Yukako | ||||||
著者 所属 | ||||||
埼玉大学理学部 | ||||||
著者 所属 | ||||||
埼玉大学大学院理工学研究科分子生物学領域 | ||||||
著者 所属(別言語) | ||||||
Department of Biochemistry and Molecular Biology, Faculty of Science, Saitama University | ||||||
著者 所属(別言語) | ||||||
Department of Biochemistry and Molecular Biology, Faculty of Science, Saitama University | ||||||
書誌情報 |
Planta 巻 216, 号 3, 発行日 2003 |
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年月次 | ||||||
2003 | ||||||
出版者名 | ||||||
出版者 | Springer | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1007/s00425-002-0859-5 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Cyanobacteria, algae and plants reduce photosystem contents and modulate photosystem stoichiometry upon acclimation to high-light (HL) conditions to avoid the damage due to excess light energy. In order to elucidate the molecular mechanism of HL acclimation, mRNA levels of genes encoding subunits of photosystems were examined upon the change of photon flux density in the wild-type strain of Synechocystis sp. PCC 6803. Transcript levels and promoter activities of photosystem I (PSI) genes rapidly decreased upon the shift to HL to less than 10% of the initial level within 1 h, whereas responses of photosystem II (PSII) transcript levels were not coordinated. The prompt change of promoter activities of PSI genes, but not PSII genes, seems important for Synechocystis cells to regulate their photosystem contents in response to changes in photon flux density. mRNA stabilities of PSI genes also decreased during HL incubation. The down-regulation of PSI transcripts under HL did not depend on de novo protein synthesis, contrasting with the requirement of newly synthesized protein factor(s) for the accumulation of PSI transcripts under low light. When gene expression profiles were compared between wild-type cells and a pmgA-disrupted mutant that cannot modulate photosystem stoichiometry under HL, a large increase in the psaAB and psaA transcript levels was observed in the mutant under prolonged exposure to HL for 6 h. Repression of the promoter activity of the psaA gene by a pmgA-dependent mechanism was shown to be essential for the adjustment of photosystem stoichiometry under HL conditions. | |||||
注記 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Copyright notice. c2003 Springer. All rights reserved. Publisher's version: http://www.springerlink.com/content/xuml42ertpu1945l/?p=7a361f357fc54d9aa1edc9acceef90f1&pi=10 | |||||
版 | ||||||
[著者版] | ||||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
資源タイプ | ||||||
内容記述タイプ | Other | |||||
内容記述 | text | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
作成日 | ||||||
日付 | 2007-03-05 | |||||
日付タイプ | Created | |||||
アイテムID | ||||||
A1001147 |