Strain designation 5’→3’ primer  sequences1 Reference Acinetobactercalcoaceticus 3462 TAC GCA GGG TAA TGA ATC AA Chang et al., 2005 TCC GTG TCT CAG TAC CAG TG Alcaligenesfaecalis subsp. faecalis ATCC 87503 CAT CCC GCG GTG TAT GAT GAA Phung et al., 2012 TCT GAC ATA CTC TAG CTC GG Arthrobacterglobiformis 6072 GTC GCG TCT GCT GTG AAA GC Crocker et al., 2000 TTT AGC CTT GCG GCC GTA CT Bacillus cereus ATCC145793 AGA GTT TGA TCC TGG CTC AG Bavykin et al., 2004 TAC GGC TAC CTT GTT ACG ACT T Flavobacteriumcapsulatum 3152 TAC TCG CAG AAT AAG CAC CG GenBank Accession M59296 GTA TCT AAG TTC CCG AAG GC Pseudomonas fluorescens13525 GGTCTGAGAGGATGATCAGT Widmer et al., 1998 TTAGCTCCACCTCGCGGC 1Top sequence given for each species = forward primer; bottom sequence = reverse 2Reference strain obtained from Presque Isle Cultures, Erie, PA 3Reference strain obtained from American Type Culture Collection, Manassas, VA

Table 3: ATCC reference strains and PCR primers used in the rDNA-based quantification aspect of this study.