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Ultrastructure and phototactic action spectra of two genera of cryptophyte flagellate algae, Cryotomonas and Chroomonas
https://ir.soken.ac.jp/records/4516
https://ir.soken.ac.jp/records/4516749294a2-5026-4b8a-bbf4-bbfcba3f79af
| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2014-05-15 | |||||||||||
| タイトル | ||||||||||||
| タイトル | Ultrastructure and phototactic action spectra of two genera of cryptophyte flagellate algae, Cryotomonas and Chroomonas | |||||||||||
| タイトル | ||||||||||||
| タイトル | Ultrastructure and phototactic action spectra of two genera of cryptophyte flagellate algae, Cryotomonas and Chroomonas | |||||||||||
| 言語 | en | |||||||||||
| 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 |
Erata, M
× Erata, M
× WATANABE, Masakatsu
× et, al.
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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 | A comparative action spectroscopical study was made on phototaxis in two genera of cryptomonads (cryptophyte flagellate algae), namely,Cryptomonas (rostratiformis) andChroomonas (nordstedtii andcoeruled). The two genera differ in their characteristic phycobilin pigmentation and, among three species, onlyChroomonas coerulea possesses an eyespot. The two species with no eyespot,Cryptomonas rostratiformis andChroomonas nordstedtii, exhibited positive phototaxis, showing very similar action spectra characterized by a broad band in the region from 450 nm to 650 nm, with an action maximum at about 560 nm; these features are essentially the same as those observed previously forCryptomonas strain CR-1. InCryptomonas rostratiformis, a small peak was also found at 280 nm in the UV-B/C region.Chroomonas coerulea, with eyespot, did not exhibit distinct positive phototaxis in a wide spectral region at any given, even very low, light intensity, but exhibited negative phototaxis of spectral sensitivity maximal at 400–450 nm. These results indicate that the positive phototaxis ofCryptomonas (rostratiformis and CR-1) andChroomonas nordstedtii is mediated by the same, yet unidentified photoreceptor(s).Chroomonas nordstedtii, possessing no phycoerythrin absorbing at 545 nm, also exhibits positive phototaxis at ca. 560 nm, and this result disfavors the so far proposed possibility that the positive phototaxis of the cryptophytes may be mediated by phycobilin pigments. On the other hand, the spectral characteristics of negative phototaxis ofChroomonas coerulea can possibly be ascribed to the presence of an eyespot. | |||||||||||
| 書誌情報 |
Protoplasma en : Protoplasma 巻 188, 号 3-4, p. 258-266, 発行日 1995-09 |
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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 | 0033-183X | |||||||||||
| DOI | ||||||||||||
| 識別子タイプ | DOI | |||||||||||
| 関連識別子 | https://doi.org/10.1007/BF01280378 | |||||||||||
| 関連名称 | 10.1007/BF01280378 | |||||||||||
| 権利 | ||||||||||||
| 権利情報 | SpringerLink(The original publication is available at www.springerlink.com) | |||||||||||
