IOCAS-IR  > 海洋生态与环境科学重点实验室
Toxic effects and mechanisms of Prymnesium parvum (Haptophyta) isolated from the Pearl River Estuary, China
Qin, Junlian1,2; Hu, Zhangxi3; Zhang, Qun1; Xu, Ning1; Yang, Yufeng1,2
2020-06-01
Source PublicationHARMFUL ALGAE
ISSN1568-9883
Volume96Pages:9
Corresponding AuthorXu, Ning(txuning@163.com) ; Yang, Yufeng(tyyf@jnu.edu.cn)
AbstractPrymnesium (Haptophyta) species form toxic blooms throughout the world resulting in large fish-kills and economic losses. A culture of Prymnesium parvum JX12 was isolated and established from the Pearl River Estuary of China. The toxic characteristics of JX12 to aquatic animals were investigated, considering the effects of temperature, salinity, and nutrients. Cultures of JX12 exhibited significant lethal toxicity to the fish, Mugil sp., M. soiuy, M. cephalus, Ctenogobius sp. and Chrysiptera parasema, and the brine shrimp, Anemia sahna, but no significant effects on the shellfish Ruditapes variegatus and the shrimp Penacus orientalis. The toxicity of JX12 to A. salina increased with growth of the culture. The decline phase displayed the strongest potency, followed by the stationary phase, exponential phase and lag phase. Also, there was a significant difference in toxicity among culture fractions of JX12 compared to whole-cell culture. For example, the toxicity of a cell-free culture filtrate on brine shrimp was reduced by 50% by the end of the experiment, while the sonicated and re-suspended cultures caused near 100% mortality. The toxicity of JX12 was also regulated by environmental factors such as temperature, salinity and nutrients. The strongest toxicities were at moderate water temperature (20-25 degrees C) and salinity (35 psu). The toxicity was reduced significantly at higher or lower temperatures and salinities. Furthermore, the toxicity of JX12 was greatly enhanced when ambient nutrients were deficient. Due to the potent toxicity of JX12 to multiple aquatic animals, especially fish and zooplankton, this species threatens the food web and trophic dynamics of coastal ecosystems. This study suggested that the ability to produce and release toxin(s) is an effective competition strategy for P. parvum to suppress predators and sympatric competitors and thus form blooms.
KeywordPrymnesium parvum Aquatic animals Toxic effects Mechanisms Pearl River Estuary
DOI10.1016/j.hal.2020.101844
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China (NSFC)[41576159] ; National Natural Science Foundation of China (NSFC)[41977268] ; National Natural Science Foundation of China (NSFC)[61533011] ; Pilot National Laboratory for Marine Science and Technology (Qingdao)[LMEES-YTSP-2018-01-04]
WOS Research AreaMarine & Freshwater Biology
WOS SubjectMarine & Freshwater Biology
WOS IDWOS:000541912700011
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/167793
Collection海洋生态与环境科学重点实验室
Corresponding AuthorXu, Ning; Yang, Yufeng
Affiliation1.Jinan Univ, Key Lab Eutrophicat & Red Tide Prevent Guangdong, Dept Ecol, Guangzhou 510632, Peoples R China
2.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai 519000, Peoples R China
3.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
Recommended Citation
GB/T 7714
Qin, Junlian,Hu, Zhangxi,Zhang, Qun,et al. Toxic effects and mechanisms of Prymnesium parvum (Haptophyta) isolated from the Pearl River Estuary, China[J]. HARMFUL ALGAE,2020,96:9.
APA Qin, Junlian,Hu, Zhangxi,Zhang, Qun,Xu, Ning,&Yang, Yufeng.(2020).Toxic effects and mechanisms of Prymnesium parvum (Haptophyta) isolated from the Pearl River Estuary, China.HARMFUL ALGAE,96,9.
MLA Qin, Junlian,et al."Toxic effects and mechanisms of Prymnesium parvum (Haptophyta) isolated from the Pearl River Estuary, China".HARMFUL ALGAE 96(2020):9.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Qin, Junlian]'s Articles
[Hu, Zhangxi]'s Articles
[Zhang, Qun]'s Articles
Baidu academic
Similar articles in Baidu academic
[Qin, Junlian]'s Articles
[Hu, Zhangxi]'s Articles
[Zhang, Qun]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Qin, Junlian]'s Articles
[Hu, Zhangxi]'s Articles
[Zhang, Qun]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.