The local transcriptional regulators SacR1 and SacR2 act as repressors of fructooligosaccharides metabolism in Lactobacillus plantarum

Table 2 Relative transcript abundances of FOS-related genes in the wild-type and ΔsacR1 and ΔsacR2 strains grown in different sugars

Gene	Wild-type strain		ΔsacR1 strain		ΔsacR2 strain
Gene	FOS	GOS	FOS	GOS	FOS	GOS
sacPTS26^a,b	3.10 ± 0.32*	1.51 ± 0.17	3.14 ± 0.18*	1.22 ± 0.05	3.04 ± 0.31	3.27 ± 0.16
sacA^a,b	3.35 ± 0.29*	1.28 ± 0.23	3.18 ± 0.14	3.24 ± 0.24	3.42 ± 0.12*	1.11 ± 0.09
sacK^a,b	3.16 ± 0.36*	1.05 ± 0.19	3.02 ± 0.22	3.08 ± 0.27	2.95 ± 0.31*	0.87 ± 0.14

Data presented are mean values based on at least three replicates. Error bars indicate standard deviations
^aThe relative transcription abundances of each gene in different conditions were calculated by the 2^−ΔCt method and 16S rRNA was used as the internal standard
^bAsterisks indicate statistically significant differences (P < 0.05) of the corresponding values obtained from cells grown on FOS compared with those grown on GOS

ISSN: 1475-2859