1. Biology Department, University of Maryland—College Park, 4094 Campus Drive, College Park, Maryland 20742, United States
2. Department of Microbial Pathogenesis, University of Maryland—Baltimore, Baltimore, Maryland 21201, United States
3. Institute for Bioscience and Biotechnology Research, Rockville, Maryland 20850, United States
4. Department of Applied Science, College of William and Mary, Williamsburg, Virginia 23185, United States