Figure 1.

liz1⁻ mutants show aberrant mitoses in hydroxyurea. Asynchronous cultures of wild-type (TE271) (A) and liz1Δ (TE879) (B) cells were incubated in 10 mM hydroxyurea for 6 h, heat fixed, and stained with DAPI. Arrows indicate cells displaying the cut phenotype, and arrowheads indicate cells that have completed nuclear division and arrested with condensed chromosomes and a septum.