Table 2. Oligonucleotide probes used for fluorescence in situ hybridization.

Name	Target group	Sequence (5′–3′)	Ref.
ARCH915	Most of Archaea	GTGCTCCCCCGCCAATTCCT	Amann et al. (1990)
EUB338	Most of Bacteria	GCTGCCTCCCGTAGGAGT	Amann et al. (1990)
ANME-1-350	ANME-1	AGTTTTCGCGCCTGATGC	Boetius et al. (2000)
ANME-2-712	ANME-2	TTCGCCACAGATGGTCCC	Knittel and Boetius (2009)
ANME-3-1249	ANME-3	TCGGAGTAGGGACCCATT	Losekann et al. (2007)
ANME-3-1249H3	ANME-3 helper	GTCCCAATCATTGTAGCCGGC	Losekann et al. (2007)
ANME-3-1249H5	ANME-3 helper	TTATGAGATTACCATCTCCTT	Losekann et al. (2007)

Abbreviation: ANME, archaeal anaerobic methanotroph.