Abstract
Bacterial FtsZ assembles and constricts after chromosomal segregation in the course of cell division. Here we examined the localization of FtsZ in multinucleated swarmer cells of Proteus mirabilis by immunostaining. FtsZ was found to localize to the point of karyomitosis in swarmer cells of P. mirabilis, which is equivalent to filamentous mutants of Escherichia coli defective in the ftsI or ftsQ genes that are involved in later steps of cell division. Thus our findings suggest that the appearance of swarmer cells results from cellular functions immediately after FtsZ assembly.
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