Comparisons of microbial abundance and community among different plant species in constructed wetlands in summer

Zhang, Jian; Wang, Qian; Fan, Jiangwen; Xie, Huijun; Liu, Cui; Liang, Shuang; Hu, Zhen; Yang, Zhongchen; Zhao, Chao

doi:10.1016/j.ecoleng.2015.05.026

Cited by 22 publications

(7 citation statements)

References 28 publications

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“…Firstly, the results indicated that Proteobacteria was the dominant phyla followed by Bacteroidetes in the three systems. This finding was consistent with a plenty of studies that reported Proteobacteria as the dominant phylum in various microorganism samples from the substrate or rhizosphere in wetlands 22 38 40 41 . Proteobacteria , which displayed a remarkably high level of bacterial metabolic diversity involved in global carbon, nitrogen and sulfur cycling, played an important role in pollutants removal 40 42 .…”

Section: Discussionsupporting

confidence: 92%

A Hardy Plant Facilitates Nitrogen Removal via Microbial Communities in Subsurface Flow Constructed Wetlands in Winter

Wang

Zhang

Zuo

et al. 2016

Sci Rep

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The plants effect in subsurface flow constructed wetlands (SSF-CWs) is controversial, especially at low temperatures. Consequently, several SSF-CWs planted with Iris pseudacorus (CWI) or Typha orientalis Presl. (CWT) and several unplanted ones (CWC) were set up and fed with secondary effluent of sewage treatment plant during the winter in Eastern China. The 16S rDNA Illumina Miseq sequencing analysis indicated the positive effects of I. pseudacorus on the bacterial community richness and diversity in the substrate. Moreover, the community compositions of the bacteria involved with denitrification presented a significant difference in the three systems. Additionally, higher relative abundances of nitrifying bacteria (0.4140%, 0.2402% and 0.4318% for Nitrosomonas, Nitrosospira and Nitrospira, respectively) were recorded in CWI compared with CWT (0.2074%, 0.0648% and 0.0181%, respectively) and CWC (0.3013%, 0.1107% and 0.1185%, respectively). Meanwhile, the average removal rates of NH4+-N and TN in CWI showed a prominent advantage compared to CWC, but no distinct advantage was found in CWT. The hardy plant I. pseudacorus, which still had active root oxygen release in cold temperatures, positively affected the abundance of nitrifying bacteria in the substrate, and accordingly was supposed to contribute to a comparatively high nitrogen removal efficiency of the system during the winter.

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Section: Discussionsupporting

confidence: 92%

A Hardy Plant Facilitates Nitrogen Removal via Microbial Communities in Subsurface Flow Constructed Wetlands in Winter

Wang

Zhang

Zuo

et al. 2016

Sci Rep

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“…Proteobacteria has been widely considered an active participant in nitrogen removal in the CWs for its high diversity of metabolism which involves global carbon, nitrogen, and sulfur cycling [62]. The results of this study were consistent with several previous studies that indicated Proteobacteria as the dominant bacterial community in a variety of wetland substrates [48,49,62,63]. Further comparison of Proteobacteria by order also indicated a difference in the relative abundances of many orders, such as Burkholderiales, Oceanospirillales, Pseudomonadales, and Rhodocyclales, between samples from the substrate of planted systems and those from the unplanted ones.…”

Section: Discussionsupporting

confidence: 91%

Effects of Oenanthe javanica on Nitrogen Removal in Free-Water Surface Constructed Wetlands under Low-Temperature Conditions

Song

Wang

Liu

et al. 2019

IJERPH

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To investigate the role and microorganism-related mechanisms of macrophytes and assess the feasibility of Oenanthe javanica (Blume) DC. in promoting nitrogen removal in free-water surface constructed wetlands (FWS-CWS) under low temperatures (<10 °C), pilot-scale FWS-CWS, planted with O. javanica, were set up and run for batch wastewater treatment in eastern China during winter. The presence of macrophytes observably improved the removal rates of ammonia nitrogen (65%–71%) and total nitrogen (41%–48%) (p < 0.05), with a sharp increase in chemical oxygen demand concentrations (about 3–4 times). Compared to the unplanted systems, the planted systems not only exhibited higher richness and diversity of microorganisms, but also significantly higher abundances of bacteria, ammonia monooxygenase gene (amoA), nitrous oxide reductase gene (nosZ), dissimilatory cd1-containing nitrite reductase gene (nirS), and dissimilatory copper-containing nitrite reductase gene (nirK) in the substrate. Meanwhile, the analysis of the microbial community composition further revealed significant differences. The results indicate that enhanced abundances of microorganisms, and the key functional genes involved with nitrogen metabolism in the planted systems played critical roles in nitrogen removal from wastewater in FWS-CWS. Furthermore, abundant carbon release from the wetland macrophytes could potentially aid nitrogen removal in FWS-CWS during winter.

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“…These results suggested that plant type might influence bacterial abundance in the FWSF-CW. The potential influence of plant type on bacterial abundance has also been reported in natural wetlands (Lee and Kang 2016) and CWs treating industrial wastewater (Calheiros et al 2010) or synthetic wastewater (Zhang et al 2015b;Liu et al 2016). In addition, Long et al (2016a) also suggested that plant type might be a key determinant to bacterial abundance in a VF-CW used for river water treatment.…”

Section: Temporal and Spatial Variations Of Wetland Bacterial Abundancementioning

confidence: 84%

“…These results further suggested the potential influence of vegetation type on bacterial richness and diversity in the FWSF-CW. Several previous studies also suggested important roles of vegetation type in determining bacterial richness and diversity in natural wetlands (Yu et al 2012;Lee et al 2015;Lee and Kang 2016), and CWs treating industrial wastewater (Calheiros et al 2010) or synthetic wastewater (Liu et al 2016;Zhang et al 2015b), and a VF-CW used for river water treatment (Long et al 2016a). There has been no report Fig.…”

Section: Temporal and Spatial Variations Of Wetland Bacterial Richnesmentioning

confidence: 91%

“…Two previous studies have indicated an obvious site-related change of sediment/soil bacterial community structure in FWSF-CWs used for surface water treatment (Ligi et al 2014;Cao et al 2017), yet no direct information existed on the temporal change of bacterial community structure in FWSF-CW used for surface water treatment. Moreover, the associations of bacterial community structure with plant type in FWSF-CW used for surface water treatment remain unknown, although previous studies suggested that plant type might play an important role in shaping bacterial community structure in natural wetlands (Yu et al 2012;Lee et al 2015;Lee and Kang 2016;Rietl et al 2016), wastewater treatment CWs (Calheiros et al 2010;Arroyo et al 2013;Zhang et al 2015b;Liu et al 2016), a CW fed with groundwater (Menon et al 2013), and a VF-CW used for river water treatment (Long et al 2016a). In this study, the results of both clustering analysis and phylogenetic analysis indicated noticeable seasonal and spatial shifts in bacterial community structure in the studied FWSF-CW, and its season-related change was sitespecific.…”

Section: Temporal and Spatial Variations Of Wetland Bacterial Communimentioning

confidence: 99%

See 1 more Smart Citation

Dynamics of bacterial communities in a river water treatment wetland

Liu

Tong

et al. 2019

Ann Microbiol

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Bacteria play important roles in the removal of inorganic and organic pollutants in constructed wetlands (CWs) used for surface water treatment, however, the environmental variables driving the change of bacterial community remain poorly understood. The present work explored seasonal and spatial dynamics of bacterial communities in a large CW used for river water treatment and the associated environmental variables. Quantitative PCR assay and high-throughput sequencing analysis were used to determine the abundance, richness, diversity, and structure of wetland bacterial community. Bacterial abundance was correlated to nitrite and temperature, while bacterial diversity could be influenced by pH as well as carbon, nitrogen, and phosphorus. Bacterial community structure might be shaped by nitrogen and phosphorus. A considerable difference in bacterial community composition existed between wetland soils and sediments. Proteobacteria (accounting for 33-60%) was the largest bacterial phylum, and Chloroflexi (5-24%) was also abundant. The abundance, richness, diversity, and composition of the bacterial community were influenced by wetland plant type and wetland trophic status.

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Comparisons of microbial abundance and community among different plant species in constructed wetlands in summer

Cited by 22 publications

References 28 publications

A Hardy Plant Facilitates Nitrogen Removal via Microbial Communities in Subsurface Flow Constructed Wetlands in Winter

A Hardy Plant Facilitates Nitrogen Removal via Microbial Communities in Subsurface Flow Constructed Wetlands in Winter

Effects of Oenanthe javanica on Nitrogen Removal in Free-Water Surface Constructed Wetlands under Low-Temperature Conditions

Dynamics of bacterial communities in a river water treatment wetland

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