title: Metagenomic analysis of microbiota structure evolution in phytoremediation of a swine lagoon wastewater.
abstract: Pytoremediation was studied in this project to treat swine manure lagoon wastewater characteristic of high concentrations of organic carbon, ammonium (N) and phosphorus (P). The impacts of introducing exogenous microalgae Chlorella into the lagoon wastewater on the removal of major nutrients and the transformation of the native wastewater microbiota structure were explored under two phytoremediation modes (shake flask and CO2-air bubbling). The results showed that the inoculation of microalgae could significantly enhance N and P removal. Metagenomic analysis of the native microbiota composition in the wastewater affected by algae inoculation revealed that a substantial population of algicidal bacteria was developed in the shake flask system, while in the CO2-air bubbling system, a niche for more mutualistic bacteria was created, which benefited the maximal algal growth with the simultaneous optimal N and P removal. To our knowledge, this study presents, the first reported case of applying metagenomic approach to a phytoremediation system treating real swine lagoon wastewater.
authors: School of Forestry & Environmental Studies, Yale University, New Haven, CT 06511, United States.
authors: Jianfeng
authors: J
authors: Ye
authors: Shanghai Academy of Environmental Sciences, Shanghai 200233, China.
authors: Zhaofeng
authors: Z
authors: Song
authors: CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China. Electronic address: wangliang@sari.ac.cn.
authors: Liang
authors: L
authors: Wang
authors: Biological and Agricultural Engineering Department, University of Arkansas, Fayetteville, AR 72701, United States.
authors: Jun
authors: J
authors: Zhu
mesh_terms: D000818:Animals; D001419:Bacteria / Q000235:genetics / Q000378:metabolism; D001673:Biodegradation, Environmental; D002708:Chlorella; D008372:Manure / Q000382:microbiology*; D054892:Metagenome; D058086:Microalgae; D064307:Microbiota / Q000235:genetics*; D012722:Sewage / Q000737:chemistry / Q000382:microbiology; D013552:Swine; D018508:Water Purification / Q000379:methods*
chemical_list: D008372:Manure; D012722:Sewage
keywords: Chlorella; Metagenomics; Microbiota structure; Nutrient removal; Swine wastewater