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  1. 010 学術雑誌論文
  2. 渡辺, 正勝 / WATANABE, Masakatsu

Phototactic responses of four marine dinoflagellates with different types of eyespot and chloroplast

https://ir.soken.ac.jp/records/3899
https://ir.soken.ac.jp/records/3899
ed056cfc-8986-4825-ad97-1237abe151ce
Item type 学術雑誌論文 / Journal Article(1)
公開日 2013-08-14
タイトル
タイトル Phototactic responses of four marine dinoflagellates with different types of eyespot and chloroplast
タイトル
タイトル Phototactic responses of four marine dinoflagellates with different types of eyespot and chloroplast
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 HORIGUCHI, Takeo

× HORIGUCHI, Takeo

HORIGUCHI, Takeo

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KAWAI, Hiroshi

× KAWAI, Hiroshi

KAWAI, Hiroshi

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KUBOTA, Mamoru

× KUBOTA, Mamoru

KUBOTA, Mamoru

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TAKAHASHI, Tetsuo

× TAKAHASHI, Tetsuo

TAKAHASHI, Tetsuo

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WATANABE, Masakatsu

× WATANABE, Masakatsu

WATANABE, Masakatsu

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著者別名 渡辺, 正勝

× 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 Great structural variety is seen in the eyespot of dinoflagellates, a structure involved in phototaxis. Although there are several works on the phototactic responses in some species of dinoflagellates, none of the dinoflagellates used in these studies possessed an eyespot and, therefore, we have no knowledge of the relationship between eyespot type and phototactic response. In this study, we determined wavelength dependency curves for phototaxis in four marine dinoflagellates that possess a different type of either eyespot or chloroplast. These include: (i) a dinoflagellate possessing a peridinin-containing chloroplast with an eyespot (Scrippsiella hexapraecingula Horiguchi et Chihara); (ii) a dinoflagellate containing a diatom endosymbiont and with the type B eyespot sensu Dodge (1984; (Peridinium foliaceum (Stein) Biecheler); (iii) a dinoflagellate with peridinin-containing chloroplasts, but lacking an eyespot (Alexandrium hiranoi Kita et Fukuyo); and (iv) a dinoflagellate with fucoxanthin, 19'-hexanoyloxyfucoxanthin and 19'-butanoyloxyfucoxanthin, but lacking an eyespot (Gymnodinium mikimotoi Miyabe et Kominami ex Oda). Regardless of the eyespot or the chloroplast type, all four dinoflagellates showed similar wavelength dependency curves for phototaxis, with sensitivity between 380 and 520 nm, the highest peak at approximately 440 or 460 nm and smaller peaks or shoulders at 400-420 nm and 480-500 nm. Substantial peaks have also been noted in the ultraviolet range (260-280 nm). The ultrastructural study of the eyespot of Scrippsiella hexapraecingula revealed that the eyespot consists of two layers of lipid globules and probably acts as a quarter-wave stack antenna.
書誌情報 Phycological Research
en : Phycological Research

巻 47, 号 2, p. 101-107, 発行日 1999-06
出版者
出版者 Wiley-Blackwell
ISSN
収録物識別子タイプ ISSN
収録物識別子 13220829
DOI
識別子タイプ DOI
関連識別子 https://doi.org/10.1046/j.1440-1835.1999.47220158.x
関連名称 10.1046/j.1440-1835.1999.47220158.x
権利
権利情報 © 1999–2013 John Wiley & Sons, Inc
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