The authors would like to gratefully thank Dr. Michael J. Hladik, Dept. of Biological Engineering, Inha University, and Dr. AlNaeeli Mawadda, Lab of Microbiology and Immunology, University of Rochester, NY, for their kindly reviewing the manuscript. This work was supported by the 21C Frontier Microbial Genomics and Applications Center Program, Ministry of Education, Science & Technology, Republic of Korea.