Fig. 5From: Comparison of the stability of eGFP displayed on the Bacillus subtilis spore surface using CotB and C-terminally truncated CotB proteins as an anchoring motif under extreme conditionsRelative mean fluorescence intensity (MFI) of eGFP-displaying spores after pH challenge. Spores were prepared from B. subtilis 168 harboring the plasmids pUB19-cotB-gfp and pUB19-ΔcotB-gfp. The MFI at pH 8 was normalized to 100. Statistical significance between the groups is indicated by asterisks (*p < 0.05, **p < 0.01, ***p < 0.001)Back to article page