Endosymbiotic sulfate-reducing and sulfideoxidizing bacteria in a gutless marine worm (Oligochaeta, Annelida).

Dubilier N, Mülders C, Ferdelman T, de Beer D, Hentschke A, Klein M, Wagner M, Erséus C, Thiermann F, Krieger J, Giere O, Amann R (2001); Nature, 411:298-302. doi: 10.1038/35077067