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Tolerance to freezing stress in cyanobacteria, Nostoc commune and some cyanobacteria with various tolerances to drying stress
https://doi.org/10.15094/00006210
https://doi.org/10.15094/00006210a40e012b-87a7-4150-88a0-2ee05dd454ec
名前 / ファイル | ライセンス | アクション |
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KJ00000673336 (1.1 MB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 2004-02-01 | |||||
タイトル | ||||||
タイトル | Tolerance to freezing stress in cyanobacteria, Nostoc commune and some cyanobacteria with various tolerances to drying stress | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | energy transfer | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | freezing stress | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Nostoc commune | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | photosynthetic activity | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | photosystems I and II | |||||
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 | departmental bulletin paper | |||||
ID登録 | ||||||
ID登録 | 10.15094/00006210 | |||||
ID登録タイプ | JaLC | |||||
ページ属性 | ||||||
内容記述タイプ | Other | |||||
内容記述 | P(論文) | |||||
論文名よみ | ||||||
その他のタイトル | Tolerance to freezing stress in cyanobacteria, Nostoc commune and some cyanobacteria with various tolerances to drying stress | |||||
著者名(英) |
Lin, Yufang
× Lin, Yufang× Hirai, Manabu× Kashino, Yasuhiro× Koike, Hiroyuki× Tuzi, Satoru× Satoh, Kazuhiko |
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著者所属(英) | ||||||
en | ||||||
Graduate School of Science, Himeji Institute of Technology/Graduate School of Science, Himeji Institute of Technology/Graduate School of Science, Himeji Institute of Technology/Graduate School of Science, Himeji Institute of Technology/Graduate School of Science, Himeji Institute of Technology/Graduate School of Science, Himeji Institute of Technology | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Tolerance to and effects of the freezing stress in a desiccation-tolerant, terrestrial cyanobacterium, Nostoc commune, in cultivated strains of N. commune, and in desiccation-sensitive species, Synechocystis sp. PCC6803 and Fischerella muscicola, were studied by measuring their photosynthetic activities and fluorescence emission spectra. The results showed that a strain or species with higher desiccation tolerance was more tolerant to freezing stress than one with lower desiccation tolerance, which is consistent with the idea that tolerance to freezing stress is related to resistance to drying stress. Under freezing conditions, light energy absorbed by photosystem (PS) II complexes was dissipated to heat energy in N. commune, which may protect the cells from photoinactivation. N. commune encountered cellular dehydration due to ice formation outside the cell under freezing conditions. But NMR data showed that relatively high amounts of water still remained in a liquid state inside the cells at -36_C when N. commune colonies were fully wetted before freezing. High PSI activities measured by P700 photooxidation also support the result that non-freezing water remains within the cells. Besides, 5% methanol enhanced the resistance to freezing stress in the sensitive species. This effect seems to be related to maintenance of the PSI activity and pigment-protein complexes in their functional forms by methanol. | |||||
雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11327019 | |||||
書誌情報 |
Polar bioscience 巻 17, p. 56-68, 発行日 2004-02-01 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |