Table 2.

Taxonomy based on 16S rRNA genes and sources of Fe(III)-reducing bacteria isolates.

Isolate	Related species	Accession numbera	Identity	Family	Source
1	Clostridium sporogenes Clostridium botulinum	CP009225 CP000726	99% 99%	Clostridiaceae	IM, HB, HN, JS, JX, FJ, GX
2	Clostridium bifermentans	JX267051	99%		IM, HB, HN, JS, JX
3	Clostridium glycolicum	KJ722507	99%		HB, FJ, GX
4	Clostridium irregulare	EU887817	99%		HN, FJ
5	Clostridium sp.	FJ384387	99%		HB, HN
6	Clostridium amylolyticum, Clostridium mesophilum	NR044386 JN650296	99% 99%		HB
7	Clostridium beijerinckii	CP006777	99%		HN
8	Clostridium venationis	EU089966	99%		JS
9	Clostridium celerecrescens	JN650298	99%		JS
10	Clostridium subterminale, Clostridium thiosulfatireducens	NR113027 NR042718	99% 99%		FJ
11	Clostridium sphenoides, Clostridium celerecrescens	LC053840 JN650298	99% 99%		JS, JX, GX
12	Robinsoniella peoriensis	AF445283	99%	Lachnospiraceae	JS
13	Hydrogenoanaerobacterium saccharovorans	NR044425	99%	Ruminococcaceae	FJ
14	Eubacterium contortum	EU980608	99%	Eubacteriaceae	FJ
15	Oscillibacter ruminantium	NR118156	99%	Ocillospiraceae	FJ

^aNucleotide sequence accession number of the related species in the GenBank database.