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The“harmful algae and algal toxins in coastal waters of china:investigation and database”project

Journal of Oceanology and Limnology 2022年第6期40卷 2081-2093页

作者： Tian YAN CAS Key Laboratory of Marine Ecology and Environmental Sciences Institute of OceanologyChinese Academy of SciencesQingdao 266071China Laboratory for Marine Ecology and Environmental Science Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China Center for Ocean Mega-Science Chinese Academy of SciencesQingdao 266071China

The“harmful algae and algal toxins in coastal waters of china:investigation and database”project(HAATC)is funded(US$2.3 million)by the Ministry of Science and Technology of china for 60 months starting on the 1st Jan 2019.Since the 1990s,national projects and other related work have greatly improved harmful algal bloom(HAB)research in china.However,the existing research on HABs is often limited to specific sea areas or specific algal bloom disasters,which is insufficient for understanding the long-term evolution of HAB occurrence under the influence of intensified human activity and global change.The HAATC project intends to determine the overall distribution of marine harmful microalgae and macroalgae,and marine algal toxins(in phytoplankton and shellfish)through a large-scale investigation in the coastal waters of china and continuous investigation in key sea areas.It also aims to observe biotic and abiotic processes during harmful red tides and green tides,and establish an open database and query platform of HABs in china.The research consortium,led by chief scientist Prof.Tian YAN,includes approximately 100 scientists and students.More than 2 years of work have shown the increased distribution of HAB species(including cysts)and algal toxins in china’s coastal waters,the increased occurrence of macroalgae blooms(mainly by Ulva prolifera and Sargassum horneri)in the Southern Yellow Sea,increased amount of causative species being identified due to the use of molecular technologies in taxonomy,and new records of algal toxins such as azaspiracid,cycloimines and neurotoxinsβ-N-methylamino-l-alanine have been detected,which complicates the research in algal toxins and toxicology.Eventually,the project will provide systematic basic data and techniques for the rapid and accurate identification of harmful algae species to support the research,monitoring,and control of harmful algal blooms,as well as seafood safety management in china.

关键词： harmful algae algal toxins coastal waters of china database

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Morphological and genetic comparison of two strains of a Prorocentrum species isolated from Zhejiang coastal water of china and Masan Bay of Korea

Morphological and genetic comparison of two strains of a Pro...

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中国藻类学会第八次会员大会暨第十六次学术讨论会

作者： GOEBEL Jeanette JEONG Hae Jin Landesamt für Landwirtschaft Umwelt und lndliche RumeHamburger Chaussee 2524220 FlintbekGermany School of Earth and Environmental Science College of Natural SciencesSeoul National UniversityKorea

＜正＞In this paper,we examined the detailed morphology of two strains of Prorocentrum isolated from the coastal waters of Zhejiang（Wenling area）,china and Masan Bay of Korea.A taxonomic comparison was made among strains on the basis of morphological and molecular data.The cellular dimensions of the Chinese Wenling strain （LAMB090508） and Korean strain（PDKS0206） were similar and the cells of both strains were of asymmetric and elongated shape.The posterior end of most cells was rounded. Megacytic zones of senescent cells were broader with dense tiny knobs.The roundish nucleus was positioned in the posterior part of the cell.A few irregular shaped chloroplasts were distributed within the cell.The nucleotide similarity of the two strains,determined from the ITS rDNA sequences,was 99.83%.The comparative results suggested that both strains isolated from china and Korea were the identical species, Prorocentrum donghaiense Lu.

关键词： Prorocentrum morphology nrDNA ITS coastal waters of china Korea

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