IOCAS-IR  > 海洋生态与环境科学重点实验室
A comparative study on the allelopathy and toxicity of four strains of Karlodinium veneficum with different culturing histories
Yang, Huijiao1,2; Hu, Zhangxi1,3,4; Xu, Ning5; Tang, Ying Zhong1,3,4
2019
Source PublicationJOURNAL OF PLANKTON RESEARCH
ISSN0142-7873
Volume41Issue:1Pages:17-29
Corresponding AuthorTang, Ying Zhong(yingzhong.tang@qdio.ac.cn)
AbstractThe dinoflagellate Karlodinium veneficum blooms kill fish by the production of karlotoxins. We investigated the allelopathy (Akashiwo sanguinea as the target species) and toxicity (Oryzias melastigma, Artemia salina and Brachionus plicatilis as test animals) of four strains of K. veneficum isolated from coastal waters of China and the USA to explore the ecological implications of allelopathy and toxicity. In general, all four strains of K. veneficum at high cell densities (>100 000 cellsmL(-1)) significantly inhibited the growth of A. sanguinea to different extents, but they exhibited either positive or negative allelopathy at lower densities. The toxicity of the four strains showed a decreasing order coinciding with their culture histories in the laboratory, suggesting K. veneficum may have gradually lost toxicity during laboratory culturing. The allelopathic and toxic potencies among K. veneficum strains were not perfectly parallel, indicating that either the allelochemicals and toxins of K. veneficum may be different chemicals, or the same chemicals functioned in different modes. Moreover, we found A. salina avoided feeding on more toxic strains. These results together suggest that toxins provide an advantage for K. veneficum via avoiding predation, but allelopathy may not play an important role in initiating blooms of K. veneficum.
Keywordharmful algal blooms (HABs) Karlodinium veneficum allelopathy toxicity intraspecific variation
DOI10.1093/plankt/fby047
Indexed BySCI
Language英语
Funding ProjectNational Science Foundation of China[41 476 142] ; National Science Foundation of China[41 506 143] ; National Science Foundation of China[61 533 011] ; NSFC-Shandong Joint Fund for Marine Ecology and Environmental Sciences[U1606404] ; Scientific and Technological Innovation Project of the Qingdao National Laboratory for Marine Science[2016ASKJ02] ; National Key R&D Program of China[2017YFC1404300] ; Creative Team Project of the Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology[LMEES-CTSP-2018-1]
WOS Research AreaMarine & Freshwater Biology ; Oceanography
WOS SubjectMarine & Freshwater Biology ; Oceanography
WOS IDWOS:000460628700004
PublisherOXFORD UNIV PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/155337
Collection海洋生态与环境科学重点实验室
Corresponding AuthorTang, Ying Zhong
Affiliation1.Chinese Acad Sci, Inst Oceanol, Cas Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
3.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266237, Peoples R China
4.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China
5.Jinan Univ, Inst Hydrobiol, Guangzhou 510632, Guangdong, Peoples R China
First Author AffilicationKey Laboratory of Marine Ecology & Environmental Sciences, CAS
Corresponding Author AffilicationKey Laboratory of Marine Ecology & Environmental Sciences, CAS
Recommended Citation
GB/T 7714
Yang, Huijiao,Hu, Zhangxi,Xu, Ning,et al. A comparative study on the allelopathy and toxicity of four strains of Karlodinium veneficum with different culturing histories[J]. JOURNAL OF PLANKTON RESEARCH,2019,41(1):17-29.
APA Yang, Huijiao,Hu, Zhangxi,Xu, Ning,&Tang, Ying Zhong.(2019).A comparative study on the allelopathy and toxicity of four strains of Karlodinium veneficum with different culturing histories.JOURNAL OF PLANKTON RESEARCH,41(1),17-29.
MLA Yang, Huijiao,et al."A comparative study on the allelopathy and toxicity of four strains of Karlodinium veneficum with different culturing histories".JOURNAL OF PLANKTON RESEARCH 41.1(2019):17-29.
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