Table 2. Differently expressed genes in C. difficile cultivated in absence and presence of L-lactate.

	gene name	Log2 fold change exp	adj. p-value exp	Log2 fold change stat	adj. p-value stat	Annotation (according to [28])
CDIF630erm_01318	larA	1.52	5.94E-05	1.42	6.16E-07	lactate racemase
CDIF630erm_01319	etfB4	1.21	2.60E-05	1.35	1.90E-06	lactate dehydrogenase (electron bi-/ confurcating), electron transfer flavoprotein beta subunit
CDIF360erm_01320	etfA4	2.77	8.14E-07	2.88	9.05E-08	lactate dehydrogenase (electron bi-/ confurcating), electron transfer flavoprotein alpha subunit
CDIF630erm_01321		2.52	5.29E-07	2.59	8.83E-07	lactate dehydrogenase (electron bi-/ confurcating), catalytic subunit

The log2 fold changes of regulated genes (log2 fold change > 1, p-value < 0.01) measured by DNA array in the exponential and at the beginning of the stationary phase from cells cultivated in absence (CAM) and presence of 500 mg/L L-lactate (CAM+L) based on 4 independent cultivations are shown.