Table 1. Primer sequences and their domain specific coverage rates.

Primera	Sequence (5′–>3′)	E. coli Position	Coverage (%)b				Reference
			Eukarya	Bacteria	Archaea	Total
338r	GCTGCCTCCCGTAGGAGT	355–338	-	88,4	-	75,6	Suzuki (1996) [44]
518r	ATTACCGCGGCTGCTGG	542–518	88,3	85,1	0,4	82,2	Muyzer (1993) [45]
799f	AACMGGATTAGATACCCKG	781–799	-	78,5	71,7	69,4	Chelius & Triplett (2001) [18]
926f	AACTCAAAGGAATTGACGG	908–926	-	77,4	-	65,7	Lane (1991) [46]
1062r	CTCACRRCACGAGCTGAC	1081–1064	-	89,5	2,4	77,1	Allen (2005) [47]

^a, Primer names according to first description; primer names indicate both position and direction.

^b, According to SILVA SSU Ref 113 NR database.