title: Vegetation type and layer depth influence nitrite-dependent methane-oxidizing bacteria in constructed wetland.
abstract: Nitrite-dependent anaerobic methane oxidation (n-damo) process might be an important methane sink in wetland system. However, information on n-damo microorganisms in constructed wetland (CW) system for water treatment is still lacking. The present study investigated the n-damo communities in five full-scale vertical-flow CW systems with different plants. N-damo bacterial abundance did not show a considerable shift in CW planted with Cyperus papyrus, but varied greatly in other CW systems. However, the evident vertical change of n-damo community diversity occurred in each CW system. These CW systems displayed the different vertical change trends for either n-damo community abundance or diversity. In addition, CW n-damo community structure could change with wetland layer depth. At a given wetland layer depth, the evident difference of n-damo community abundance, diversity and structure could be observed in the five different CW systems. Both wetland layer depth and vegetation type could contribute to the shift of n-damo bacterial abundance and community structure in CWs.
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: Mengxi
authors.initials: M
authors.lastname: Yang
authors.affiliation: South China Institute of Environmental Sciences (SCIES), Ministry of Environment Protection (MEP), Guangzhou, 510655, China.
authors.forename: Qingwei
authors.initials: Q
authors.lastname: Guo
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: Tianli
authors.initials: T
authors.lastname: Tong
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: Ningning
authors.initials: N
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: Key Laboratory of Water/Soil Toxic Pollutants Control and Bioremediation of Guangdong Higher Education Institutes, School of Environment, Jinan University, Guangzhou, 510632, China. tlongyan@jnu.edu.cn.
authors.forename: Yan
authors.initials: Y
authors.lastname: Long
mesh_terms: D000693:Anaerobiosis; D044822:Biodiversity; D019605:Euryarchaeota / Q000145:classification / Q000235:genetics / Q000502:physiology*; D005798:Genes, Bacterial / Q000235:genetics; D009573:Nitrites / Q000378:metabolism; D010084:Oxidation-Reduction; D010802:Phylogeny; D018521:Plant Physiological Phenomena; D011156:Population Density; D012988:Soil Microbiology; D018508:Water Purification; D053833:Wetlands
chemical_list: D009573:Nitrites
keywords: Constructed wetland; Methane oxidation; Microbial community; Surface water; Vegetation