The dinoflagellate Alexandrium catenella producing only carbamate toxins may account for the seafood poisonings in Qinhuangdao, China
文献类型：期刊论文
| 作者 | Yu, Ren-Cheng1,2,3,4 ; Zhang, Qing-Chun1,2; Liu, Yang5; Chen, Zhen-Fan6; Geng, Hui-Xia7; Dai, Li1,3; Lin, Zhuo-Ru1,3; Tang, Wen-Jiao8; Kong, Fan-Zhou1,2; Yan, Tian1,2
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| 刊名 | HARMFUL ALGAE
 |
| 出版日期 | 2021-03-01 |
| 卷号 | 103页码:11 |
| 关键词 | Paralytic shellfish toxins (PSTs) Alexandrium catenella Bohai Sea HPLC High throughput sequencing Cyst |
| ISSN号 | 1568-9883 |
| DOI | 10.1016/j.hal.2021.101980 |
| 通讯作者 | Yu, Ren-Cheng(rcyu@qdio.ac.cn) |
| 英文摘要 | An outbreak of paralytic shellfish poisoning, recorded in April 2016 in Qinhuangdao China, was suspected to be caused by a toxic species in genus Alexandrium. Shortly after the poisoning outbreak, shellfish and netconcentrated phytoplankton samples were collected from the Bohai Sea, and analysed using high performance liquid chromatography coupled with fluorescence detection. Paralytic shellfish toxins (PSTs) were detected in both phytoplankton and shellfish samples, with similar toxin profiles dominated by carbamate toxins. High throughput sequencing data for phytoplankton samples collected previously in the coastal waters of Qinhuangdao were then analysed, and 8 operational taxonomic units (OTUs) were assigned to Alexandrium affine, A. andersonii/A. ostenfeldii, A. catenella, A. fraterculus, A. hiranoi/A. pseudogonyaulax, A. margalefii, A. pacificum and A. pohangense, among which A. catenella, A. pacificum and A. ostenfeldii could be potential producers of PSTs. During a cruise in 2019, three isolates of Alexandrium were established by cyst germination, and identified as A. catenella based on the sequences of the 28S ribosomal RNA gene (28S rDNA) D1-D2 region. Interestingly, all the three strains had the same toxin profile consisting of gonyautoxins 1, 3, 4 (GTX1, 3, 4) and neosaxitoxin (NEO). The toxin profile is similar to those of phytoplankton samples collected previously in the coastal waters of Qinhuangdao, but remarkably different from the general toxin profile of A. catenella dominated by N-sulfocarbamoyl toxins C1-2 in the Bohai Sea and the Yellow Sea. The results suggest that A. catenella is most likely to be the causative species of the poisoning outbreak in Qinhuangdao. As far as we know, this is the first report of A. catenella in the Bohai Sea producing PSTs dominated by high potent gonyautoxins GTX1-4. Occurrence of the highly toxic A. catenella will increase the risk of paralytic shellfish poisoning, which necessitates in-depth mechanism studies and increasing monitoring efforts. |
| 资助项目 | National Key RD Program[2019YFC1407901] ; Science & Technology Basic Resources Investigation Program[2018FY100206] ; Ministry of Science and Technology of China ; CAS-CSIRO BAU project[GJHZ201973] ; Chinese Academy of Sciences |
| WOS研究方向 | Marine & Freshwater Biology |
| 语种 | 英语 |
| WOS记录号 | WOS:000663075400011 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/176867]  |
| 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 | Yu, Ren-Cheng |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol Qingdao, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China 5.Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol, Guangdong Prov Key Lab Appl Marine Biol, Guangzhou 510301, Peoples R China 6.Shenzhen Univ, Coll Life Sci & Oceanog, Shenzhen 518060, Peoples R China 7.Chinese Acad Sci, Inst Oceanol, Changjiang River Estuary Ecosyst Res Stn, Qingdao 266071, Peoples R China 8.Ocean Univ China, Coll Marine Life Sci, Qingdao 266003, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Ren-Cheng,Zhang, Qing-Chun,Liu, Yang,et al. The dinoflagellate Alexandrium catenella producing only carbamate toxins may account for the seafood poisonings in Qinhuangdao, China[J]. HARMFUL ALGAE,2021,103:11. |
| APA | Yu, Ren-Cheng.,Zhang, Qing-Chun.,Liu, Yang.,Chen, Zhen-Fan.,Geng, Hui-Xia.,...&Zhou, Ming-Jiang.(2021).The dinoflagellate Alexandrium catenella producing only carbamate toxins may account for the seafood poisonings in Qinhuangdao, China.HARMFUL ALGAE,103,11. |
| MLA | Yu, Ren-Cheng,et al."The dinoflagellate Alexandrium catenella producing only carbamate toxins may account for the seafood poisonings in Qinhuangdao, China".HARMFUL ALGAE 103(2021):11. |
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来源：海洋研究所
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