Physiological and transcriptomic response of dinoflagellate Gymnodinium catenatum to nitrate deficiency
文献类型：期刊论文
| 作者 | Shi, Jingyuan1,3; Liu, Yun1,3; Song, Shuqun1,3; Gu, Haifeng2; Li, Caiwen1,3
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| 刊名 | MARINE POLLUTION BULLETIN
 |
| 出版日期 | 2024-11-01 |
| 卷号 | 208页码:11 |
| 关键词 | Gymnodinium catenatum Nitrogen Transcriptome Paralytic shellfish toxins Harmful algal bloom |
| ISSN号 | 0025-326X |
| DOI | 10.1016/j.marpolbul.2024.117009 |
| 通讯作者 | Liu, Yun(liuyunqd@qdio.ac.cn) ; Li, Caiwen(cwli@qdio.ac.cn) |
| 英文摘要 | The paralytic shellfish toxin producing dinoflagellate Gymnodinium catenatum is a globally distributed species and often forms massive blooms. However, the physiological and molecular responses of G. catenatum to nitrate starvation have not been thoroughly investigated. Our results showed that multiple forms of N could be utilized by G. catenatum under nitrate-deficient conditions. Nitrate deficiency adversely affected the growth, cellular Chlorophyll a (Chl a) content, and toxin production of G. catenatum. Transcriptomic analysis revealed significant down-regulation of gene expressions involved in the light reaction of photosynthesis, while genes related to fatty acids synthesis and antioxidation were significantly upregulated in the N-depleted cultures. Our results suggested that excess carbon was channeled into lipid synthesis for energy storage, and antioxidant reactions were upregulated to eliminate toxic peroxides caused by nitrate limitation. These findings highlight the adaptative strategy of G. catenatum in low-nitrate environments, which are crucial factors driving its bloom formation. |
| WOS关键词 | CHEMOENZYMATIC SYNTHESIS ; NITROGEN ASSIMILATION ; LIPID-METABOLISM ; GROWTH ; TOXIN ; OVEREXPRESSION ; CYANOBACTERIA ; DINOPHYCEAE ; REINHARDTII ; MECHANISMS |
| 资助项目 | National Natural Science Foundation of China (NSFC)[41976136] ; Marine S & T Fund of Shandong Province for Pilot National Laboratory for Marine Science and Technology (Qingdao)[2021QNLM040001-2] ; Post-doctoral Funding Program of Qingdao[QDBSH20240102100] |
| WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology |
| 语种 | 英语 |
| WOS记录号 | WOS:001321082600001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/199240]  |
| 专题 | 海洋研究所_海洋生态与环境科学重点实验室 |
| 通讯作者 | Liu, Yun; Li, Caiwen |
| 作者单位 | 1.Qingdao Marine Sci & Technol Ctr, Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China 2.Minist Nat Resources, Inst Oceanog 3, Xiamen 361005, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, CAS, Qingdao 266071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shi, Jingyuan,Liu, Yun,Song, Shuqun,et al. Physiological and transcriptomic response of dinoflagellate Gymnodinium catenatum to nitrate deficiency[J]. MARINE POLLUTION BULLETIN,2024,208:11. |
| APA | Shi, Jingyuan,Liu, Yun,Song, Shuqun,Gu, Haifeng,&Li, Caiwen.(2024).Physiological and transcriptomic response of dinoflagellate Gymnodinium catenatum to nitrate deficiency.MARINE POLLUTION BULLETIN,208,11. |
| MLA | Shi, Jingyuan,et al."Physiological and transcriptomic response of dinoflagellate Gymnodinium catenatum to nitrate deficiency".MARINE POLLUTION BULLETIN 208(2024):11. |
入库方式： OAI收割
来源：海洋研究所
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