Figure 6. Temperature-dependent epiphytic survival.

Epiphytic population size of wild type Pseudomonas syringae B728a (A) or a ΔflgK mutant (B) incubated at 20°C (open diamond) or 30°C (black square) for 6.5 hours at 100% RH prior to being exposed to desiccation at 26–28°C and 60–65% RH. Log-transformed population size decline was measured during the desiccation period that occurred between 6.5 and 12 hours after inoculation (C). This experiment was repeated several times with similar results. Treatments noted with the same letter do not differ significantly at a p-value ≤0.05 as determined by least significant difference test (LSD). The vertical bars represent the standard deviation of the mean. Error bars are present in panel B, but in some cases are small and obscured by the treatment symbol.