TABLE 1.

Primers used for real-time PCR

Gene	Forward	Reverse
rhlA	5′-TCT GTT GGT ATC GGT TTG CAA GGG-3′	5′-ACA GCA CCA CGT TGA AAT GTT CGG-3′
pprA	5′-TGC TGT TGG GCA TGG ACA TCT-3′	5′-AGA CGC GAA AGG ATC AGC TT-3′
pprB	5′-TCA AGT ACG AGG TAC ACG GCA ACA-3′	5′-TAT CTG GTA GTT GGT CAG GCC CTT-3′
rpoD	5′-ACA TGC GTG AAA TGG GTA CCG T-3′	5′-ATG CGC TTG GCG ATT TCG ATC T-3′