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塩分低下をともなう珪酸塩の供給に対するSi制限Skeletonema costatumの生理的応答
https://hiroshima.repo.nii.ac.jp/records/2010868
https://hiroshima.repo.nii.ac.jp/records/2010868ca48c72b-88ee-4eec-be4d-cee6847fdb86
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
BullPlanktonSocJapan_42-1_1.pdf (947.2 KB)
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| Item type | デフォルトアイテムタイプ_（フル）(1) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2023-03-18 | |||||||||
| タイトル | ||||||||||
| タイトル | Physiological responses of Si-limited Skeletonema costatum to silicate supply with salinity decrease | |||||||||
| 言語 | en | |||||||||
| タイトル | ||||||||||
| タイトル | 塩分低下をともなう珪酸塩の供給に対するSi制限Skeletonema costatumの生理的応答 | |||||||||
| 言語 | ja | |||||||||
| 作成者 |
Yamamoto, Tamiji
× Yamamoto, Tamiji
× Tsuchiya, Haruhiko
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| アクセス権 | ||||||||||
| アクセス権 | open access | |||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||
| 権利情報 | ||||||||||
| 権利情報 | Copyright (c) 1995 The Plankton Society of Japan | |||||||||
| 主題 | ||||||||||
| 主題Scheme | Other | |||||||||
| 主題 | Skeletonema costatum | |||||||||
| 主題 | ||||||||||
| 主題Scheme | Other | |||||||||
| 主題 | silicate | |||||||||
| 主題 | ||||||||||
| 主題Scheme | Other | |||||||||
| 主題 | salinity | |||||||||
| 主題 | ||||||||||
| 主題Scheme | Other | |||||||||
| 主題 | continuous culture | |||||||||
| 主題 | ||||||||||
| 主題Scheme | Other | |||||||||
| 主題 | physiology | |||||||||
| 主題 | ||||||||||
| 主題Scheme | NDC | |||||||||
| 主題 | 480 | |||||||||
| 内容記述 | ||||||||||
| 内容記述 | Unsteady continuous culture of the diatom Skeletonema costatum, which is a dominant species forming red tides during the warm season in Mikawa Bay, was carried out. From the reported field observations, silicate concentration was considered to be the most plausible factor governing the biomass of S. costatum in the surface layer of the stratified water column. The two possible major processes involved in Si supply, i.e. from the bottom layer by wind mixing and by fresh water runoff, occurring in situ during this season were established by reciprocal replacement with a Si-sufficient media, with or without an accompanying salinity decrease of 5 ‰ to the Si-limited culture of S. costatum. The uptake rate of nitrate and phosphate per cell increased with Si limitation. Silicate limitation also caused several noticeable changes in the morphology of S. costatum. One of these morphological changes, cell elongation, made the cell quota of N and P larger than that of Si. On the other hand, silicate uptake rate per cell showed a sharp increase with increased Si supply and this elevated Si uptake rate was 5-9 fold that under Si-limited conditions. The degree of elevation of Si uptake was higher without an accompanying salinity decrease than with a salinity decrease, indicating that osmotic pressure may not be responsible for the uptake mechanism. Furthermore, Si-limited S. costatum showed higher growth rates when supplied Si with an accompanying salinity decrease than without a salinity decrease. Judging from these results, it is supposed that Si-depleted S. costatum grows faster in situ with Si supplied through river discharge, if the salinity is optimum for S. costatum, than through overturning of the water column due to wind mixing. | |||||||||
| 言語 | en | |||||||||
| 出版者 | ||||||||||
| 出版者 | 日本プランクトン学会 | |||||||||
| 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 | |||||||||
| 出版タイプ | ||||||||||
| 出版タイプ | VoR | |||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||
| 収録物識別子 | ||||||||||
| 収録物識別子タイプ | ISSN | |||||||||
| 収録物識別子 | 0387-8961 | |||||||||
| 収録物識別子 | ||||||||||
| 収録物識別子タイプ | NCID | |||||||||
| 収録物識別子 | AN00197015 | |||||||||
| 開始ページ | ||||||||||
| 開始ページ | 1 | |||||||||
| 書誌情報 |
日本プランクトン学会報 日本プランクトン学会報 巻 42, 号 1, p. 1-17, 発行日 1995-07-15 |
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| 旧ID | 28909 | |||||||||
