1. Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, Liaoning 110016, China
2. University of Chinese Academy of Sciences, Beijing 100049, China
3. Center for Environmental Biotechnology, University of Tennessee, Knoxville, Tennessee 37996, United States
4. Department of Civil and Environmental Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
5. Research Group Anaerobic Microbiology, Friedrich Schiller University, Jena 07743, Germany
6. Department of Microbiology, University of Tennessee, Knoxville, Tennessee 37996, United States
7. Biosciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
8. Department of Biosystems Engineering & Soil Science, University of Tennessee, Knoxville, Tennessee 37996, United States