Predator-induced defense reduces growth rate and carrying capacity in a toxic diatom, Pseudo-nitzschia seriata
文献类型：期刊论文
| 作者 | Jia, Junjie2,4; Kiorboe, Thomas4; Selander, Erik1; Ryderheim, Fredrik3,4 |
| 刊名 | HARMFUL ALGAE
 |
| 出版日期 | 2025-09-01 |
| 卷号 | 148页码:102920 |
| 关键词 | Inducible defense Trade-off Domoic acid Toxic algae |
| ISSN号 | 1568-9883 |
| DOI | 10.1016/j.hal.2025.102920 |
| 产权排序 | 1 |
| 文献子类 | Article |
| 英文摘要 | Phytoplankton employ a wide variety of defenses to reduce mortality from zooplankton grazing. Many such defenses are inducible, that is, they are upregulated in the event of increased predation. Thus, theory predicts that they should come at a cost to the organism. When exposed to predatory cues from a copepod predator, the diatom Pseudo-nitzschia seriata upregulates the production of the neurotoxin domoic acid (DA). DA has recently been found to have grazer deterrent effects, but whether its production comes with trade-offs is still unclear. Here, we expose a strain of P. seriata to cues from copepods to induce increased DA production through the population growth phases. We find that not only do the induced cells grow slower, but because they take up more nitrogen per cell from the media, they produce less cells overall. <1 % of cellular nitrogen went into DA production, suggesting that the lower growth rate does not reflect a direct allocation cost, but rather that cells manipulate growth rate to reach higher toxin content per cell, or other costs associated with a higher toxin load. Such a mechanistic understanding of phytoplankton trade-offs is essential to accurately describe and model ocean plankton dynamics. |
| URL标识 | 查看原文 |
| WOS关键词 | DOMOIC ACID PRODUCTION ; TRADE-OFFS ; BACILLARIOPHYCEAE ; MULTISERIES ; COMPETITION ; NEUROTOXIN ; INDUCTION ; ECOLOGY ; TRAITS |
| WOS研究方向 | Marine & Freshwater Biology |
| 语种 | 英语 |
| WOS记录号 | WOS:001533886500001 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/215364]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_外文论文 |
| 通讯作者 | Jia, Junjie; Ryderheim, Fredrik |
| 作者单位 | 1.Lund Univ, Dept Biol, Funct Ecol Sect, Kontaktvagen 10, S-22362 Lund, Sweden; 2.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China; 3.Univ Copenhagen, Marine Biol Sect, Strandpromenaden 5, DK-3000 Helsingor, Denmark 4.Tech Univ Denmark, Ctr Ocean Life, DTU Aqua, DK-2800 Kongens Lyngby, Denmark; |
| 推荐引用方式 GB/T 7714 | Jia, Junjie,Kiorboe, Thomas,Selander, Erik,et al. Predator-induced defense reduces growth rate and carrying capacity in a toxic diatom, Pseudo-nitzschia seriata[J]. HARMFUL ALGAE,2025,148:102920. |
| APA | Jia, Junjie,Kiorboe, Thomas,Selander, Erik,&Ryderheim, Fredrik.(2025).Predator-induced defense reduces growth rate and carrying capacity in a toxic diatom, Pseudo-nitzschia seriata.HARMFUL ALGAE,148,102920. |
| MLA | Jia, Junjie,et al."Predator-induced defense reduces growth rate and carrying capacity in a toxic diatom, Pseudo-nitzschia seriata".HARMFUL ALGAE 148(2025):102920. |
入库方式： OAI收割
来源：地理科学与资源研究所
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