“…In laboratory-enriched cultures, anaerobic benzene degradation can be sustained under different electronaccepting conditions, for example, under iron-reducing (Lovley et al, 1996;Nales et al, 1998;Weiner and Lovley, 1998;Zhang et al, 2012), nitrate-reducing (Burland and Edwards, 1999;Coates et al, 2002;Ulrich and Edwards, 2003;Kasai et al, 2006;van der Zaan et al, 2012), sulfate-reducing (Edwards and Grbić-Galić, 1992;Nales et al, 1998;Caldwell and Suflita, 2000;Kleinsteuber et al, 2008;Abu Laban et al, 2009) and methanogenic conditions (Grbić-Galić and Vogel, 1987;Kazumi et al, 1997;Ulrich and Edwards, 2003;Sakai et al, 2009;Noguchi et al, 2014). In petroleum contaminated aquifers, regions close to the contaminated source are typically predominantly methanogenic (Lovley, 1997).…”