Table 2.

Mating assays to test mobilization of the Ptw Dtr region.

Mobilizable plasmid	Recipient strain
	B. cenocepacia K56-2 (pSU1445)	B. cepacia 322 (pSU1445)	B. cepacia 4461 (pSU1445)	E. coli β2163 (pSU1445)
pEF022 (pBBR1:Ptw oriT+ ptwA +2/3 ptwB)	<2.8 × 10−8	<1.9 × 10−8	<2.4 × 0−8	<3.1 × 10−8
pEF031 (pBBR1:Ptw oriT + ptwABC)	<2.2 × 10−8	4.4 × 10−5	3.1 × 10−5	<2.7 × 10−8

B. cenocepacia K56-2 was used as donor strain. Conjugation frequencies (transconjugants/donor) represent the mean of at least three independent experiments. Positive mobilization frequencies are highlighted in bold.