CO2 enrichment and excess nitrogen supply synergistically increase toxicity of marine dinoflagellate<i> Alexandrium</i><i> minutum</i>

doi:10.1016/j.jhazmat.2023.132869

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋生态与环境科学重点实验室

	CO2 enrichment and excess nitrogen supply synergistically increase toxicity of marine dinoflagellate Alexandrium minutum
	Li, Fang 3,4; Guo, Lin 4; Chen, Junhui 3; Lian, Ziru 4; Yu, Ren-Cheng 1,2
刊名	JOURNAL OF HAZARDOUS MATERIALS
	2024-02-05
卷号	463 页码:8
关键词	Alexandrium minutum Paralytic shellfish toxins Ocean acidification Eutrophication Harmful algal blooms
ISSN号	0304-3894
DOI	10.1016/j.jhazmat.2023.132869
通讯作者	Lian, Ziru(yoyo-lzr@hotmail.com)
英文摘要	Discharges of CO2 and nutrients by anthropogenic activities have notable contributions to CO2 enrichment and eutrophication in coastal systems. Following our previous study that toxic dinoflagellate Alexandrium minutum will increase their growth rate and cellular toxicity under elevated levels of CO2, we further examined the joint effects of CO2 enrichment and excess nitrogen supply through a 29-day experiment under three CO2 levels (400, 800 and 1200 ppm) with a high N/P ratio of 80. It was found that the two factors have synergistical effects in promoting the increase of cellular toxicity. There were remarkable increases in toxin biosynthesis of paralytic shellfish toxins when both intracellular and extracellular toxins were considered. Under the joint impacts of CO2 enrichment and excess nitrogen supply, the apparent transformation from gonyautoxins2/3 to gonyautoxins1/4, with much higher toxicity and lower rate of release, is likely to be another major factor accounting for the increasing toxicity. The increasing growth rate and cellular toxicity of A. minutum under the scenarios with elevated concentrations of both CO2 and nitrogen in coastal systems in the future will increase the risks associated with such toxic algal blooms.
资助项目	National Natural Science Foundation of China[U22A20583] ; National Natural Science Foundation of China[U2106205] ; Taishan Scholars Program
WOS关键词	TOXIN PRODUCTION ; COASTAL WATERS ; ELEVATED CO2 ; ALGAL BLOOMS ; GROWTH ; EUTROPHICATION ; ACIDIFICATION ; SAXITOXIN ; TAMARENSE ; CULTURES
WOS研究方向	Engineering ; Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:001109498100001
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/183992]
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	Lian, Ziru
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 3.Minist Nat Resources, Inst Oceanog 1, Marine Bioresource & Environm Res Ctr, Key Lab Marine Ecoenvironm Sci & Technol, Qingdao 266061, Peoples R China 4.Shandong Univ, Marine Coll, Weihai 264209, Peoples R China
推荐引用方式 GB/T 7714	Li, Fang,Guo, Lin,Chen, Junhui,et al. CO2 enrichment and excess nitrogen supply synergistically increase toxicity of marine dinoflagellate Alexandrium minutum[J]. JOURNAL OF HAZARDOUS MATERIALS,2024,463:8.
APA	Li, Fang,Guo, Lin,Chen, Junhui,Lian, Ziru,&Yu, Ren-Cheng.(2024).CO2 enrichment and excess nitrogen supply synergistically increase toxicity of marine dinoflagellate Alexandrium minutum.JOURNAL OF HAZARDOUS MATERIALS,463,8.
MLA	Li, Fang,et al."CO2 enrichment and excess nitrogen supply synergistically increase toxicity of marine dinoflagellate Alexandrium minutum".JOURNAL OF HAZARDOUS MATERIALS 463(2024):8.