Partitioning of a mini-F plasmid into anucleate cells of the mukB null mutant

The partition-proficient mini-F plasmid pXX325 was stably maintained in the mukB null mutant, which is defective in chromosome partitioning into the two daughter cells. In the null mutant, the plasmid was partitioned into both nucleate and anucleate daughter cells, independently of host chromosomes.