title: Algicidal and denitrification characterization of Acinetobacter sp. J25 against Microcystis aeruginosa and microbial community in eutrophic landscape water.
abstract: Acinetobacter sp. J25 exhibited good denitrification and high algicidal activity against toxic Microcystis aeruginosa. Response surface methodology (RSM) experiments showed that the maximum algicidal ratio occurred under the following conditions: temperature, 30.46°C; M. aeruginosa density, 960,000cellsmL(-1); and inoculum, 23.75% (v/v). Of these, inoculum produced the maximum effect. In the eutrophic landscape water experiment, 10% bacterial culture was infected with M. aeruginosa cells in the landscape water. After 24days, the removal ratios of nitrate and chlorophyll-a were high, 100% and 87.86%, respectively. The denitrification rate was approximately 0.118mgNO3(-)-N·L(-1)·h(-1). Moreover, the high-throughput sequencing result showed that Acinetobacter sp. J25 was obviously beneficial for chlorophyll-a and nitrate removal performance in the eutrophic landscape water treatment. Therefore, strain J25 is promising for the simultaneous removal of chlorophyll-a and nitrate in the eutrophic landscape water treatment.
authors.affiliation: School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, People's Republic of China; State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, People's Republic of China. Electronic address: sjf1977518@sina.com.
authors.forename: Jun Feng
authors.initials: JF
authors.lastname: Su
authors.affiliation: School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, People's Republic of China.
authors.forename: Min
authors.initials: M
authors.lastname: Ma
authors.affiliation: State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, People's Republic of China. Electronic address: weilihit@126.com.
authors.forename: Li
authors.initials: L
authors.lastname: Wei
authors.affiliation: State Key Laboratory of Urban Water Resource and Environment, School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, People's Republic of China.
authors.forename: Fang
authors.initials: F
authors.lastname: Ma
authors.affiliation: School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, People's Republic of China.
authors.forename: Jin Suo
authors.initials: JS
authors.lastname: Lu
authors.affiliation: School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, People's Republic of China.
authors.forename: Si Cheng
authors.initials: SC
authors.lastname: Shao
mesh_terms: D000150:Acinetobacter / Q000502:physiology*; D002734:Chlorophyll; D000077194:Chlorophyll A; D058440:Denitrification; D005068:Eutrophication; D046931:Microcystis / Q000502:physiology*; D009566:Nitrates; D014871:Water Microbiology; D018508:Water Purification
chemical_list: D009566:Nitrates; D002734:Chlorophyll; D000077194:Chlorophyll A
keywords: Algae-lysing characteristics; Algicidal bacteria; Denitrification; High-throughput sequencing; Response surface methodology (RSM)