1. College of Life Sciences Henan Agricultural University 95 Wenhua Road Zhengzhou 450002 China
2. College of Biological Engineering Henan University of Technology 100 Lianhua Street Zhengzhou 450001 China
3. CAS Key Laboratory of Environmental and Applied Microbiology & Environmental Microbiology Key Laboratory of Sichuan Province Chengdu Institute of Biology Chinese Academy of Sciences Chengdu 610041 China
4. College of Sciences Henan Agricultural University 95 Wenhua Road Zhengzhou 450002 China
5. Department of Biochemistry Molecular Biology and Biophysics and the BioTechnology Institute University of Minnesota St Paul MN 55108 USA