Skip to main content
. 2015 Sep 25;10(9):e0139277. doi: 10.1371/journal.pone.0139277

Fig 3. Impact of pH on the short-term survival of Lp in Fraquil and intracellular multiplication (ICM) after exposure to different pH.

Fig 3

A) The JR32 strain of Lp was exposed to Fraquil at four different pH. Weekly CFU counts were performed to track survival. DL, detection limit. At pH 4 and pH 5, CFU counts from 2 days are statistically different (P≤0.05) than CFU counts at pH 7. At pH 6, CFU counts from 38 days are statistically different than CFU counts at pH 7. B) A. castellanii was infected with JR32 that had been exposed to the respective pH tested for either 1 day or 7 days at an MOI of 0.1. Daily CFU counts monitored the ICM inside amoeba and are presented as the ratio over CFU counts at day 0. JR32 from BCYE was used as the positive control and dotA - was used as the negative control. *** P≤ 0.005 versus control.