1. a School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China
2. b Center for Biosafety Research and Strategy, Tianjin University, Tianjin 300072, China
3. c Laboratory of Synthetic Microbiology, School of Chemical Engineering & Technology, Tianjin University, Tianjin 300072, China
4. d College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
5. e School of Ecology and Environment, Tibet University, Lhasa 850000, China