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Strain, cell density, and nutrient condition affect patterns of diurnal vertical migration and superoxide production in a red-tide alga
https://fra.repo.nii.ac.jp/records/2010381
https://fra.repo.nii.ac.jp/records/20103811a12d092-7df1-461a-b045-0d8a4e275d09
| 名前 / ファイル | ライセンス | アクション |
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Shikata et al. Strain, cell density, and nutrient condition affect patterns.pdf (1.8 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2024-07-22 | |||||
| タイトル | ||||||
| タイトル | Strain, cell density, and nutrient condition affect patterns of diurnal vertical migration and superoxide production in a red-tide alga | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 言語 | en | |||||
| 主題Scheme | Other | |||||
| 主題 | circadian rhythm; diversity; flagellate; harmful algal bloom; interstrain difference; marine phytoplankton; raphidophyte; swimming | |||||
| 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 | |||||
| 著者 |
紫加田, 知幸
× 紫加田, 知幸× 北辻, さほ× 湯浅, 光貴 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | A red tide occurs when cell densities of autotrophic microalgae and some heterotrophic protists increase dramatically and thereby change the color of the sea. Red tides sometimes have negative impacts on human activities, such as fisheries and tourism. Most red-tide flagellates display diurnal vertical migration (DVM) in which cells normally migrate upward during the day and downward at night. This behavior promotes active growth, due to the effective acquisition of nutrients and light, as well as population density increase and cell aggregation. However, the factors and their interactions influencing DVM remain to be clarified, such that no algorithm exists that can precisely simulate the DVM pattern and the development of a red tide in the field. Chattonella marina complex (hereafter Chattonella) is a representative microalga of harmful red tides and some previous studies has suggested that Chattonella’s DVM plays important roles in development of a red tide. Chattonella can produce a large amount of superoxide (•O2−), which is responsible for the regulation of various physiological processes as well as its toxicity against microorganisms and animals. In the present study, we examined the effects of strain, growth phase, cell density, and nutrient deficiency on the pattern of DVM. In addition, we also measured the •O2− level in most experiments to assess the relationship between DVM and •O2− production. Some strains displayed clear DVM, whereas others aggregated at the surface all day in a fixed condition. Strains’ DVM patterns did not show a relationship with •O2− production. Moreover, the DVM became less clear at high cell density and in nitrogen- or phosphorus-depleted conditions. Although a previous study reported that the •O2− production rate increased during the light period and decreased during the dark period, regardless of cell density, the diurnal pattern of •O2− became less clear at a higher cell density in a Chattonella strain used in the present study. Our findings indicate that DVM and •O2− production by a Chattonella population composed of various strains can change across developmental phases and environmental conditions. This characteristic may produce adaptability in species and increase the chances of a massive population increase. | |||||
| 言語 | en | |||||
| 書誌情報 |
en : Frontiers in Cell and Developmental Biology 発行日 2023-04-13 |
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| 出版者 | ||||||
| 出版者 | Frontiers Media | |||||
| 言語 | en | |||||
| ISSN | ||||||
| 収録物識別子タイプ | EISSN | |||||
| 収録物識別子 | 2296-634X | |||||
| PubMed番号 | ||||||
| 関連タイプ | isIdenticalTo | |||||
| 識別子タイプ | PMID | |||||
| 関連識別子 | 37123416 | |||||
| DOI | ||||||
| 関連タイプ | isIdenticalTo | |||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.3389/fcell.2023.1134227 | |||||
| 情報源 | ||||||
| 関連タイプ | isIdenticalTo | |||||
| 識別子タイプ | Local | |||||
| 関連識別子 | 23343097 | |||||
| 言語 | ja | |||||
| 関連名称 | 水産技術研究所 環境・応用部門 環境保全部 | |||||
| 関連サイト | ||||||
| 関連タイプ | isIdenticalTo | |||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://www.frontiersin.org/journals/cell-and-developmental-biology/articles/10.3389/fcell.2023.1134227/full | |||||
| 言語 | en | |||||
| 関連名称 | frontiers | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
