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Discovery of signaling effect of UV-B/C light in the extended UV-A/blue-type action spectra for step-down and step-up photophobic responses in the unicellular flagellate alga Euglena gracilis
https://ir.soken.ac.jp/records/3932
https://ir.soken.ac.jp/records/3932ad959fae-b0dd-47dc-867d-19d018ebca2d
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2013-08-27 | |||||
タイトル | ||||||
タイトル | Discovery of signaling effect of UV-B/C light in the extended UV-A/blue-type action spectra for step-down and step-up photophobic responses in the unicellular flagellate alga Euglena gracilis | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Discovery of signaling effect of UV-B/C light in the extended UV-A/blue-type action spectra for step-down and step-up photophobic responses in the unicellular flagellate alga Euglena gracilis | |||||
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 |
MATSUNAGA, Shigeru
× MATSUNAGA, Shigeru× HORI, Terumitsu× TAKAHASHI, Tetsuo× MAMORU, Kubota× WATANABE, Masakatsu× OKAMOTO, Kazuhisa× MASUDA, Ketsutada× SUGAI, Michizo |
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著者別名 |
渡辺, 正勝
× 渡辺, 正勝 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Cultures of unicellular algal flagellate Euglena gracilis grown in different conditions were subjected to action spectroscopy for step-down and step-up photophobic responses, respectively. The spectral region was extended into the UV-B/C as well as in the UV-A and visible regions with the Okazaki Large Spectrograph as the monochromatic light source. The photophobic responses of the cells were measured with an individual-cell assay method with the aid of a computerized video motion analyzer. In the UV-A and visible regions, the shapes of the action spectra were the so-called UV-A/blue type. In the newly studied UV-B/C region, new action peaks were found at 270 nm for the step-down response and at 280 nm for the step-up one. The absorption spectrum of flavin adenine dinucleotide (FAD) appeared to fit the action spectrum for the step-up response, whereas the shape of the step-down action spectrum, which has a UV-A peak (at 370 nm) higher than the blue peak (at 450 nm), appeared to he mimicked by the absorption spectrum of a mixed solution of 6-biopterin and FAD. These observations might also account for the fact that the UV-B/C peak wavelength at 270 nm of the action spectrum for the step-down response is shorter by 10 nm than the action spectrum for the step-up response at 280 nm. | |||||
書誌情報 |
Protoplasma en : Protoplasma 巻 201, 号 1-2, p. 45-52, 発行日 1998 |
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出版者 | ||||||
出版者 | SpringerLink | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0033183X | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1007/BF01280710 | |||||
関連名称 | 10.1007/BF01280710 | |||||
権利 | ||||||
権利情報 | SpringerLink(The original publication is available at www.springerlink.com) |