1. Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, Tianjin, China
2. TEDA School of Biological Sciences and Biotechnology, Nankai University, 23 Hongda Street, TEDA, Tianjin 300457, China
3. Tianjin Key Laboratory of Microbial Functional Genomics, Tianjin 300457, China
4. College of Life Sciences, Nankai University, 94 Weijin Road, Tianjin 300071, China