Examination of the toxicity of a new group of Karenia papilionacea isolated from the Yellow Sea, China, to multiple species of marine aquatic animals
文献类型：期刊论文
| 作者 | Chen, Qiantong3; Gao, Menghan3; Zhang, Ning3; Li, Lang2; Fan, Yingyi3; Zhao, Jiali3; Xu, Xintong3; Tao, Zhe1; Deng, Yunyan1; Zhang, Yulei3 |
| 刊名 | FRONTIERS IN MICROBIOLOGY
 |
| 出版日期 | 2025-11-06 |
| 卷号 | 16页码:11 |
| 关键词 | |
| DOI | 10.3389/fmicb.2025.1687096 |
| 通讯作者 | Hu, Zhangxi(huzx@gdou.edu.cn) |
| 英文摘要 | Introduction The dinoflagellate genus Karenia G. Hansen and Moestrup is notorious for forming harmful algal blooms (HABs), most of which can produce a variety of potent toxins (e.g., brevetoxins), killing fish and other aquatic animals above a certain cell density. Among the 11 currently accepted Karenia species, more than half of which are toxic, 8 species (K. bicuneiformis, K. brevis, K. brevisulcata, K. hui, K. longicanalis, K. mikimotoi, K. papilionacea, and K. selliformis) have been reported or described in Chinese coastal waters. Among these, K. papilionacea is globally distributed, with records in Asia, Europe, America, and Oceania. In China, it occurs in the East and South China Seas, though its morphological characterization and toxicology have not been well documented.Methods In this study, we established a clonal culture of Karenia papilionacea through single-cell isolation from the coast of Qingdao (belonging to the Yellow Sea), China, and characterized its morphology using light microscopy (LM) and scanning electron microscopy (SEM), as well as its phylogeny based on large subunit (LSU) rDNA sequences. More importantly, we characterized the impact of K. papilionacea culture on brine shrimp egg hatching, as well as its toxicity to marine animals (rotifers, brine shrimp, and finfish) using laboratory bioassays.Results We observed the typical diagnostic features of K. papilionacea. In phylogenetic trees inferred using Bayesian inference (BI) and maximum likelihood (ML) techniques, the Yellow Sea strain branched together with other entities of K. papilionacea, but formed a new group, which is different from other strains reported in the East and South China Seas. The genetic distances among our strain of K. papilionacea and other isolates ranged from 0.002 to 0.011, corresponding to 6-23 base differences. The Yellow Sea strain exhibited significant lethal effects on rotifer, brine shrimp, and finfish, but had a minor impact on the hatching success of brine shrimp eggs.Discussion This study reports K. papilionacea in northern China for the first time, expanding the known distribution range of this toxic HAB-forming species along the Chinese coast. Our findings establish a foundation for monitoring and risk assessment of K. papilionacea in Chinese coastal waters and advance fundamental ecological knowledge of this toxic species. Future studies are needed to characterize toxins produced by geographical strains of K. papilionacea. |
| WOS关键词 | PHYTOPLANKTON BLOOMS ; LSU RDNA ; DINOPHYCEAE ; ULTRASTRUCTURE ; CHOICE ; ACID |
| 资助项目 | Research on industrial innovation technology for Guangdong modern marine ranching[2024-MRI-001-12] ; Program for Scientific Research Start-up Funds of Guangdong Ocean University[060302022201] ; Undergraduate Innovation Team of Guangdong Ocean University[CXTD2023002] ; National Natural Science Foundation of China[42306231] ; Natural Science Foundation of Fujian Province[2023J05185] |
| WOS研究方向 | Microbiology |
| 语种 | 英语 |
| WOS记录号 | WOS:001618515000001 |
| 出版者 | FRONTIERS MEDIA SA |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/204202]  |
| 专题 | 海洋研究所_海洋地质与环境重点实验室 |
| 通讯作者 | Hu, Zhangxi |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China 2.Guangxi Acad Sci, Guangxi Acad Marine Sci, Guangxi Key Lab Marine Environm Sci, Nanning, Peoples R China 3.Guangdong Ocean Univ, Coll Fisheries, Guangdong Prov Key Lab Aquat Anim Dis Control & Hl, Lab Marine Ecol & Aquaculture Environm Zhanjiang, Zhanjiang, Peoples R China 4.Minnan Normal Univ, Dept Biol Sci & BioTechnol, Zhangzhou, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Qiantong,Gao, Menghan,Zhang, Ning,et al. Examination of the toxicity of a new group of Karenia papilionacea isolated from the Yellow Sea, China, to multiple species of marine aquatic animals[J]. FRONTIERS IN MICROBIOLOGY,2025,16:11. |
| APA | Chen, Qiantong.,Gao, Menghan.,Zhang, Ning.,Li, Lang.,Fan, Yingyi.,...&Hu, Zhangxi.(2025).Examination of the toxicity of a new group of Karenia papilionacea isolated from the Yellow Sea, China, to multiple species of marine aquatic animals.FRONTIERS IN MICROBIOLOGY,16,11. |
| MLA | Chen, Qiantong,et al."Examination of the toxicity of a new group of Karenia papilionacea isolated from the Yellow Sea, China, to multiple species of marine aquatic animals".FRONTIERS IN MICROBIOLOGY 16(2025):11. |
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来源：海洋研究所
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