The deletion of klp2+ and/or pkl1+ has no effect on cell growth, as seen by plating serial dilutions of each strain. At 32°C, klp2Δ is slightly more resistant than wild type to 10 μg/ml TBZ, whereas pkl1Δ and pkl1Δ,klp2Δ are more sensitive. (See Figures 3 and 6 for growth of these strains at 36, 25, and 29°C.)