TABLE 1.

Oligonucleotide probes used in this study

Probe	Specificity	Sequence (5′-3′)	% FAa	Reference(s)
ARCH915	Archaea	GTGCTCCCCCGCCAATTCCT	40	36
			50	14
			55	36
EUB338	Bacteria	GCTGCCTCCCGTAGGAGT	55	28, 33

^aFormamide (FA) concentration in the hybridization buffer.