Metagenomics and network analysis elucidating the coordination between fermentative bacteria and microalgae in a novel bacterial-algal coupling reactor (BACR) for mariculture wastewater treatment

doi:10.1016/j.watres.2022.118256

IOCAS-IR

	Metagenomics and network analysis elucidating the coordination between fermentative bacteria and microalgae in a novel bacterial-algal coupling reactor (BACR) for mariculture wastewater treatment
	Gao, Yedong 1,3; Guo, Liang 1,2; Jin, Chunji 1; Zhao, Yangguo 1; Gao, Mengchun 1; She, Zonglian 1; Wang, Guangce 4
	2022-05-15
发表期刊	WATER RESEARCH
ISSN	0043-1354
卷号	215 页码:10
通讯作者	Guo, Liang(geletu@ouc.edu.cn)
摘要	To achieve the goal of treating mariculture wastewater economically and efficiently, a novel bacterial-algal coupling reactor (BACR) integrating acidogenic fermentation and microalgae cultivation was firstly investigated for mariculture wastewater treatment. Volatile fatty acids (VFAs) generated in the dark chamber migrated into the photo chamber for microalgal utilization, which alleviated the pH drop and feedback inhibition of the acidogenic fermentation. The maximum dry cell weight (DCW) of microalgae was 1.46 g/L, and pollutants such as chemical oxygen demand (COD), ammonium (NH4+-N) and total phosphorus (TP) in the BACR were effectively removed under the mixotrophic culture condition. Furthermore, bacterial community profiles and functional genes in the BACR and single acidogenic fermentation reactor were identified. Compared with the single acidogenic fermentation reactor, most of the fermentative bacteria (e.g., Ruminococcus, Christensenellaceae R-7 group, Exiguobacterium, Pseudomonas and Levilinea) were enriched by the BACR. From the genetic perspective, the abundances of dominant genes (ackA, acs and atoD) associated with acetic, propionic and butyric acid production were greatly enhanced in the BACR. In the fatty acid biosynthesis pathway (ko00061), three kinds of highabundance acetyl-CoA carboxylase genes and eight kinds of downstream functional genes were up-regulated in the BACR. Finally, based on co-occurrence network analysis, the coordination between fermentative bacteria and microalgae in the BACR was revealed. This study provided a deep insight into the advantage and potential of the BACR in mariculture wastewater treatment.
关键词	Mariculture wastewater Bacterial-algal coupling reactor Pollutant removal Microbial community Functional genes Co-occurrence networks
DOI	10.1016/j.watres.2022.118256
收录类别	SCI
语种	英语
资助项目	National Natural Science Founda-tion of China[52070173] ; Fundamental Research Funds for the Central Universities[201964005]
WOS研究方向	Engineering ; Environmental Sciences & Ecology ; Water Resources
WOS类目	Engineering, Environmental ; Environmental Sciences ; Water Resources
WOS记录号	WOS:000793195800002
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：40[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/179183
专题	中国科学院海洋研究所
通讯作者	Guo, Liang
作者单位	1.Ocean Univ China, Coll Environm Sci & Engn, Qingdao 266100, Peoples R China 2.Ocean Univ China, Key Lab Marine Environm & Ecol, Minist Educ, Qingdao 266100, Peoples R China 3.Harbin Inst Technol, State Key Lab Urban Water Resource & Environm SKL, Sch Environm, Harbin 150090, Peoples R China 4.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Gao, Yedong,Guo, Liang,Jin, Chunji,et al. Metagenomics and network analysis elucidating the coordination between fermentative bacteria and microalgae in a novel bacterial-algal coupling reactor (BACR) for mariculture wastewater treatment[J]. WATER RESEARCH,2022,215:10.
APA	Gao, Yedong.,Guo, Liang.,Jin, Chunji.,Zhao, Yangguo.,Gao, Mengchun.,...&Wang, Guangce.(2022).Metagenomics and network analysis elucidating the coordination between fermentative bacteria and microalgae in a novel bacterial-algal coupling reactor (BACR) for mariculture wastewater treatment.WATER RESEARCH,215,10.
MLA	Gao, Yedong,et al."Metagenomics and network analysis elucidating the coordination between fermentative bacteria and microalgae in a novel bacterial-algal coupling reactor (BACR) for mariculture wastewater treatment".WATER RESEARCH 215(2022):10.

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