TABLE 1.

Selected genes that impact biofilm formation by sulfate-reducing bacteria (SRB).

Gene Id	SRB	Annotation	Role in Biofilm formation	References
DVU1017	DVH	ABC transporter of a type I secretion system	Localization of adhesion proteins on the cell surface	De León et al., 2017
DVU1012	DVH	Hemolysin-type calcium-binding repeat-containing protein	Cell communication and adhesion via plasma membrane adhesion moleculesa	De León et al., 2017
DVU0281	DVH	Exopolysaccharide biosynthesis protein	Biofilm formation and metabolism	Ren et al., 2004; Qi et al., 2016
Dde_2358b	DAG	Pilus assembly protein	Cell adhesiona	Krumholz et al., 2015
DVU1340	DVH	Ferric uptake repressor protein	Maintaining normal metabolism in DVH biofilm under high concentration of iron	Qi et al., 2016
Dde_0430b	DAG	Cell wall biogenesis glycosyltransferase-like protein	Modulates dynamic interactions between glucan and extracellular DNA (biofilm matrix components)	Krumholz et al., 2015; Rainey et al., 2019
Dde_3584b	DAG	Flagellar biosynthesis protein	Powers swimming through liquid and swarming over solid surfaces	Kearns, 2010; Krumholz et al., 2015
DVU1817	DVH	Cytochrome c553	Electron transfer partner for the formate dehydrogenase in DVH biofilms	Clark et al., 2012
DVU0752	DVH	ABC transporter	Translocation of a wide variety of molecules into or out of biofilm cells	Shemesh et al., 2007; Clark et al., 2012
DVU0330	DVH	Response regulator containing a metal-dependent phosphohydrolase	Metal stress tolerance in biofilm cells	Rajeev et al., 2014

DVH, Desulfovibrio vulgaris Hildenborough; DAG, Desulfovibrio alaskensis G20.

^aFunction was verified from UniProt protein database.

^bGene Id obtained from STRING database.