title: Influences of plant type on bacterial and archaeal communities in constructed wetland treating polluted river water.
abstract: Both bacteria and archaeal communities can play important roles in biogeochemical processes in constructed wetland (CW) system. However, the influence of plant type on microbial community in surface water CW remains unclear. The present study investigated bacterial and archaeal communities in five surface water CW systems with different plant species. The abundance, richness, and diversity of both bacterial and archaeal communities considerably differed in these five CW systems. Compared with the other three CW systems, the CW systems planted with Vetiveria zizanioides or Juncus effusus L. showed much higher bacterial abundance but lower archaeal abundance. Bacteria outnumbered archaea in each CW system. Moreover, the CW systems planted with V. zizanioides or J. effusus L. had relatively lower archaeal but higher bacterial richness and diversity. In each CW system, bacterial community displayed much higher richness and diversity than archaeal community. In addition, a remarkable difference of both bacterial and archaeal community structures was observed in the five studied CW systems. Proteobacteria was the most abundant bacterial group (accounting for 33-60 %). Thaumarchaeota organisms (57 %) predominated in archaeal communities in CW systems planted with V. zizanioides or J. effusus L., while Woesearchaeota (23 or 24 %) and Euryarchaeota (23 or 15 %) were the major archaeal groups in CW systems planted with Cyperus papyrus or Canna indica L. Archaeal community in CW planted with Typha orientalis Presl was mainly composed of unclassified archaea. Therefore, plant type exerted a considerable influence on microbial community in surface water CW system.
authors.affiliation: Key Laboratory of Water/Soil Toxic Pollutants Control and Bioremediation of Guangdong Higher Education Institutes, School of Environment, Jinan University, Guangzhou, 510632, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Long
authors.affiliation: South China Institute of Environmental Sciences (SCIES), Ministry of Environment Protection (MEP), Guangzhou, 510655, China.
authors.forename: Hao
authors.initials: H
authors.lastname: Yi
authors.affiliation: South China Institute of Environmental Sciences (SCIES), Ministry of Environment Protection (MEP), Guangzhou, 510655, China.
authors.forename: Sili
authors.initials: S
authors.lastname: Chen
authors.affiliation: South China Institute of Environmental Sciences (SCIES), Ministry of Environment Protection (MEP), Guangzhou, 510655, China.
authors.forename: Zhengke
authors.initials: Z
authors.lastname: Zhang
authors.affiliation: South China Institute of Environmental Sciences (SCIES), Ministry of Environment Protection (MEP), Guangzhou, 510655, China.
authors.forename: Kai
authors.initials: K
authors.lastname: Cui
authors.affiliation: South China Institute of Environmental Sciences (SCIES), Ministry of Environment Protection (MEP), Guangzhou, 510655, China.
authors.forename: Yongxin
authors.initials: Y
authors.lastname: Bing
authors.affiliation: South China Institute of Environmental Sciences (SCIES), Ministry of Environment Protection (MEP), Guangzhou, 510655, China.
authors.forename: Qiongfang
authors.initials: Q
authors.lastname: Zhuo
authors.affiliation: State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, China.
authors.forename: Bingxin
authors.initials: B
authors.lastname: Li
authors.affiliation: State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing, 100871, China. xiesg@pku.edu.cn.
authors.forename: Shuguang
authors.initials: S
authors.lastname: Xie
authors.affiliation: South China Institute of Environmental Sciences (SCIES), Ministry of Environment Protection (MEP), Guangzhou, 510655, China. guoqingwei@scies.org.
authors.forename: Qingwei
authors.initials: Q
authors.lastname: Guo
mesh_terms: D001105:Archaea / Q000145:classification* / Q000235:genetics; D001419:Bacteria / Q000145:classification* / Q000235:genetics; D010944:Plants / Q000145:classification*; D019642:RNA, Archaeal / Q000235:genetics; D012329:RNA, Bacterial / Q000235:genetics; D012336:RNA, Ribosomal, 16S; D045483:Rivers; D014876:Water Pollution; D018508:Water Purification / Q000379:methods*; D053833:Wetlands
chemical_list: D019642:RNA, Archaeal; D012329:RNA, Bacterial; D012336:RNA, Ribosomal, 16S
keywords: Archaea; Bacteria; Constructed wetland; Microbial community; River water; Vegetation