Investigation of the mating system ofPseudomonas aeruginosastrain 1: III. Kinetic studies on the transfer of the sex factor (FP)

FP transfer to recombinant and non-recombinant recipients ofPseudomonas aeruginosastrain I has been investigated under controlled conditions. When transferred to recombinants, the sex factor appeared to enter first and did not seem to be linked to the early chromosome markers. Five to twenty percent of the recipient population were found to be FP+, depending on the time allowed for pairing. Only 40% of the recombinants were FP+at 90 min. A possible relationship between FP and chromosome has been discussed.