| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2024-07-22 |
| タイトル |
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タイトル |
The toxigenic red-tide-forming dinoflagellates Alexandrium leei and Alexandrium catenella differ in terms of the sensitivity to strong light and low temperature of their photosynthetic machinery |
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言語 |
en |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
スカ, アツキ
紫加田, 知幸
湯浅, 光貴
外丸, 裕司
Napaumpaiporn, Pornpan
タナカ, リュウスケ
| en |
Tanaka, Ryusuke
University of Miyazaki
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| ja |
タナカ, リュウスケ
宮崎大学
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| ja-Kana |
タナカ, リュウスケ
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Search repository
ニシヤマ, ヨシタカ
| en |
Nishiyama, Yoshitaka
Saitama University
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| ja |
ニシヤマ, ヨシタカ
埼玉大学
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| ja-Kana |
ニシヤマ, ヨシタカ
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Search repository
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
Alexandrium leei and Alexandrium catenella are noxious dinoflagellates that form red tides but the two species differ substantially in optimal growth conditions. For formation of blooms in natural environments, A. leei favors moderate temperatures (around 20 °C) while A. catenella favors much lower temperatures (around 10 °C). We examined the effects of temperature and light on cell proliferation and photosynthesis in cell cultures of the two species. Under light at 100 μmol photons m−2 s−1, the growth rate of both species was highest at 20 °C. At 25 °C, A. leei continued to proliferate but A. catenella did not survive. Conversely, at lower temperatures, namely, 12 °C and 15 °C, the growth rate of A. leei was very low while that of A. catenella remained high. The net photosynthetic activity, as determined in terms of oxygen evolution, was highest at 20 °C in A. leei. By contrast, it was highest at 15 °C in A. catenella. Illumination of cells with strong light at 1000 μmol photons m−2 s−1 decreased the activity of photosystem II (PSII), as determined in terms of Fv/Fm, in both species. In A. leei, the activity of PSII declined more rapidly at 12 °C and 15 °C than at 20 °C and 25 °C under strong light. In A. catenella, the activity of PSII declined more rapidly at 20 °C than at 12 °C and 15 °C. Thus, A. catenella appeared to be more resistant to photoinhibition of PSII at low temperatures than A. leei. In addition, the ability to repair photodamaged PSII at 12 °C and 15 °C was greater in A. catenella than that in A. leei. Thus, the tolerance of PSII to strong light and low temperatures might determine the range of temperatures that supports the formation of blooms of the two Alexandrium species. |
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言語 |
en |
| 書誌情報 |
en : Journal of Photochemistry and Photobiology B. Biology
巻 79,
p. 103495
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| 出版者 |
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出版者 |
Elsevier |
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言語 |
en |
| ISSN |
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収録物識別子タイプ |
PISSN |
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収録物識別子 |
2211-9264 |
| DOI |
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関連タイプ |
isIdenticalTo |
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識別子タイプ |
DOI |
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関連識別子 |
10.1016/j.algal.2024.103495 |
| 情報源 |
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関連タイプ |
isIdenticalTo |
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識別子タイプ |
Local |
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関連識別子 |
23343076 |
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言語 |
ja |
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関連名称 |
水産技術研究所 環境・応用部門 環境保全部 （五島） |
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関連タイプ |
isIdenticalTo |
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識別子タイプ |
URI |
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関連識別子 |
https://www.sciencedirect.com/science/article/abs/pii/S2211926424001073 |
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言語 |
ja |
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関連名称 |
Elsevier:Science Direct |
| 著者版フラグ |
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出版タイプ |
SMUR |
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出版タイプResource |
http://purl.org/coar/version/c_71e4c1898caa6e32 |
Suka et al_The toxigenic red-tide-forming dinoflagellates Alexandrium leei.pdf (359 KB)
