Table 3. Differential expression of acid resistance genes.

Differential expression of the genes associated with acid resistance, and their categories as part of the acid resistance system 2 (AR2) (from ref. [49]), characterized to be partly RpoS-dependent (from ref. [51]), or up-regulated by acetate (from ref. [36]), as applicable. The last three columns are graphical indicators of non-differential expression (white cells), over- (black cells) and under-expression (light gray cells). S13 Table provides a Gene set analysis of these genes in pathways and with statistical significance.

Gene Name	AR2	Partly RpoS-dependent	Up-regulated by acetate	25 μg/mL	50 μg/mL	75 μg/mL	25	50	75
arnB				-2.00	9.28	5.58
arnC				-1.30	8.05	2.95
asr				-1.70	9.75	1.78
cbpA				3.69	3.70	1.81
cfa			x	1.87	1.79	1.65
dctR				6.78	6.29	2.36
dps			x	7.23	3.60	1.66
gadA	x	x	x	14.07	17.49	1.18
gadB	x	x	x	12.22	25.60	1.90
gadC	x	x	x	14.18	11.11	1.74
gadE	x	x		23.47	23.04	1.71
gadW	x	x	x	8.33	5.69	2.25
gadX	x	x	x	13.73	5.82	2.05
hdeA		x	x	6.24	28.09	2.66
hdeB		x	x	6.10	29.08	2.68
hdeD		x	x	3.04	14.86	2.98
hpf			x	-2.57	2.74	1.77
mdtE		x		5.97	1.66	1.16
ompC			x	-1.05	2.80	1.33
osmC			x	-1.48	1.75	1.24
osmY			x	1.93	3.23	1.53
slp		x	x	14.78	9.52	1.78
wrbA				24.76	7.66	1.76
yahO				#N/A	#N/A	#N/A
ybaS				8.39	2.62	1.33
ybaT				4.80	1.54	1.44
ycaC				6.97	5.92	2.42
yccJ			x	28.70	7.22	2.13
ydiZ				3.12	4.58	3.85
yeaQ			x	9.95	6.26	3.80
yebV				1.96	3.71	1.75
ygfQ				1.25	1.49	1.67
yhiM				6.91	6.94	2.10
yiaG				14.22	8.45	4.36
yjfC				-2.96	1.75	1.27