The fungicide azoxystrobin promotes freshwater cyanobacterial dominance through altering competition

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	The fungicide azoxystrobin promotes freshwater cyanobacterial dominance through altering competition
	Lu, Tao ; Zhang, Qi ; Lavoie, Michel ; Zhu, Youchao ; Ye, Yizhi ; Yang, Jun ; Paerl, Hans W.; Qian, Haifeng ; Zhu, Yong-Guan
刊名	MICROBIOME
	2019-09-04
卷号	7 期号:1 页码:-
关键词	Fungicide Eutrophication Algal bloom Meta-transcriptomics Indirect effects
ISSN号	2049-2618
英文摘要	Background Sharp increases in food production worldwide are attributable to agricultural intensification aided by heavy use of agrochemicals. This massive use of pesticides and fertilizers in combination with global climate change has led to collateral damage in freshwater systems, notably an increase in the frequency of harmful cyanobacterial blooms (HCBs). The precise mechanisms and magnitude of effects that pesticides exert on HCBs formation and proliferation have received little research attention and are poorly constrained. Results We found that azoxystrobin (AZ), a common strobilurin fungicide, can favor cyanobacterial growth through growth inhibition of eukaryotic competitors (Chlorophyta) and possibly by inhibiting cyanobacterial parasites (fungi) as well as pathogenic bacteria and viruses. Meta-transcriptomic analyses identified AZ-responsive genes and biochemical pathways in eukaryotic plankton and bacteria, potentially explaining the microbial effects of AZ. Conclusions Our study provides novel mechanistic insights into the intertwined effects of a fungicide and eutrophication on microbial planktonic communities and cyanobacterial blooms in a eutrophic freshwater ecosystem. This knowledge may prove useful in mitigating cyanobacteria blooms resulting from agricultural intensification.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/43317]
专题	生态环境研究中心_土壤环境科学实验室
作者单位	1.Zhejiang Univ Technol, Coll Environm, Hangzhou 310032, Zhejiang, Peoples R China 2.Chinese Acad Sci, Inst Urban Environm, Key Lab Urban Environm & Hlth, Xiamen 361021, Fujian, Peoples R China 3.Univ Laval, Quebec Ocean & Takuvik Joint Int Res Unit, Quebec City, PQ G1V 0A6, Canada
推荐引用方式 GB/T 7714	Lu, Tao,Zhang, Qi,Lavoie, Michel,et al. The fungicide azoxystrobin promotes freshwater cyanobacterial dominance through altering competition[J]. MICROBIOME,2019,7(1):-.
APA	Lu, Tao.,Zhang, Qi.,Lavoie, Michel.,Zhu, Youchao.,Ye, Yizhi.,...&Zhu, Yong-Guan.(2019).The fungicide azoxystrobin promotes freshwater cyanobacterial dominance through altering competition.MICROBIOME,7(1),-.
MLA	Lu, Tao,et al."The fungicide azoxystrobin promotes freshwater cyanobacterial dominance through altering competition".MICROBIOME 7.1(2019):-.