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Resting Cysts of the Toxic Dinoflagellate Gymnodinium catenatum (Dinophyceae) Ubiquitously Distribute along the Entire Coast of China, with Higher Abundance in Bloom-Prone Areas

文献类型：期刊论文

作者Liu, Xiaohan2,6; Tao, Zhe4,6; Liu, Yuyang1,6; Hu, Zhangxi5,6; Deng, Yunyan1,6,7; Shang, Lixia1,6,7; Lim, Po-Teen3; Chai, Zhaoyang1,6,7; Tang, Ying-Zhong1,6,7
刊名JOURNAL OF MARINE SCIENCE AND ENGINEERING
出版日期2024-09-01
卷号12期号:9页码:13
关键词harmful algal blooms (HABs) Gymnodinium catenatum resting cyst geographic distribution quantitative PCR
DOI10.3390/jmse12091651
通讯作者Chai, Zhaoyang(zhaoyangchai@qdio.ac.cn) ; Tang, Ying-Zhong(yingzhong.tang@qdio.ac.cn)
英文摘要Blooms of Gymnodinium catenatum have occurred occasionally in different areas of China and caused tremendous economic loss and even threatened human health. Not only is G. catenatum an important harmful-algal-bloom (HAB)-causing species, but also the only gymnodinioid dinoflagellate known to produce paralytic shellfish poisoning toxins (PSTs). Due to the germination of resting cysts, which often initiates blooms, the distribution and abundance of cysts in sediments and particularly the confirmation of cyst beds are important information for understanding and predicting dinoflagellate blooms. In this research, 199 sediment samples were collected from China's coastal seas, ranging from the Beidaihe in the Bohai Sea (BS) to the southernmost sample from the Nansha Islands of the South China Sea (SCS). TaqMan quantitative PCR (qPCR) assays with species-specific primers and probes were developed to specifically detect the distribution and abundance of cysts in the 199 samples. The detection revealed that G. catenatum cysts were widely present in the sediments (126 of the 199 samples), with 93.55%, 74.65%, 42.37%, and 50% of the samples detected positively from the BS, YS, ECS and SCS, respectively, and covering the vast sea area from Nansha Islands to the Beidaihe area. The single-cyst morpho-molecular identification in the samples from Beidaihe confirmed the existence of G. catenatum cysts in the BS, and the positive detections of G. catenatum cysts using the qPCR methods. While G. catenatum cysts were widely distributed in all four seas of China, the average abundance was relatively low (1.0 cyst per gram of wet sediment). Three samples from the East China Sea (ECS), however, contained G. catenatum cysts at a relatively higher level (23 cysts g(-1) wet sediment) than other sea areas, suggesting a pertinence of cyst abundance to the frequent occurrences of G. catenatum blooms in the area during recent years. Collectively, for G. catenatum being such an important toxic and HAB-causing species globally, the ubiquitous distribution of its cysts along the coastal waters of China and higher abundance in the bloom-prone areas warns us of a risk that cyst beds, although currently low in abundance, may seed HABs in any and many sea areas of China at any forthcoming year, and particularly those areas with records of frequent HABs outbreaks in the past.
WOS关键词HARMFUL ALGAL BLOOMS ; RED TIDE ; GONYAULAX-TAMARENSIS ; GRAHAM ; PROFILE ; PHYLOGENY ; HEALTH ; UNIQUE ; GULF
资助项目National Key Research and Development Program of China ; Science and Technology Innovation Project of Laoshan Laboratory[LSKJ202203700] ; Key Research Infrastructures in the CAS Field Stations of the Chinese Academy of Science[KFJ-SW-YW047] ; Science and Technology Basic Resources Investigation Program of China[2018FY100200] ; [2022YFC3105201]
WOS研究方向Engineering ; Oceanography
语种英语
WOS记录号WOS:001326288100001
出版者MDPI
源URL[http://ir.qdio.ac.cn/handle/337002/199267]  
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Chai, Zhaoyang; Tang, Ying-Zhong
作者单位1.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China
2.Natl Marine Environm Monitoring Ctr, Dalian 116023, Peoples R China
3.Univ Malaya, Inst Ocean & Earth Sci, Bachok 16310, Kelantan, Malaysia
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.Guangdong Ocean Univ, Coll Fisheries, Dept Aquaculture, Zhanjiang 524088, Peoples R China
6.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
7.Qingdao Marine Sci & Technol Ctr, Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Xiaohan,Tao, Zhe,Liu, Yuyang,et al. Resting Cysts of the Toxic Dinoflagellate Gymnodinium catenatum (Dinophyceae) Ubiquitously Distribute along the Entire Coast of China, with Higher Abundance in Bloom-Prone Areas[J]. JOURNAL OF MARINE SCIENCE AND ENGINEERING,2024,12(9):13.
APA Liu, Xiaohan.,Tao, Zhe.,Liu, Yuyang.,Hu, Zhangxi.,Deng, Yunyan.,...&Tang, Ying-Zhong.(2024).Resting Cysts of the Toxic Dinoflagellate Gymnodinium catenatum (Dinophyceae) Ubiquitously Distribute along the Entire Coast of China, with Higher Abundance in Bloom-Prone Areas.JOURNAL OF MARINE SCIENCE AND ENGINEERING,12(9),13.
MLA Liu, Xiaohan,et al."Resting Cysts of the Toxic Dinoflagellate Gymnodinium catenatum (Dinophyceae) Ubiquitously Distribute along the Entire Coast of China, with Higher Abundance in Bloom-Prone Areas".JOURNAL OF MARINE SCIENCE AND ENGINEERING 12.9(2024):13.

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来源：海洋研究所

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