1. Department of Microbiology and Immunology, Montana State University, Bozeman, USA;
2. Center for Biofilm Engineering, Montana State University, Bozeman, USA;
3. Image and Chemical Analysis Laboratory, Montana State University, Bozeman, USA;
4. Scripps Center for Metabolomics and Mass Spectrometry, The Scripps Research Institute, La Jolla, USA;
5. Environmental Genomics and Systems Biology Division, Biosciences Area, Lawrence Berkeley National Laboratory, Berkeley, USA