TABLE 3.

Archaeal 16S rDNA sequences obtained from natural gas pipeline samples

Closest relative in GenBank (accession no.)Retrieved from sample:% Identity
A1A2S2L
Methanobacterium curvum (AF276958 )+99
Methanocalculus halotolerans (AF033672 )+99
Methanoculleus sp. clone A3 (AJ133793 )+90
Methanofollis liminatans (DSM4140) (Y16428 )+++95-98
Methanofollis sp. strain N2F9704 (AF262035 )+94
Methanohalophilus euhalobius (X98192 )++96
Methanolobus vulcani (U20155 )+97
Methanosarcina barkeri strain CM1 (AJ002476 )+++99
Methanosarcina siciliae (U89773 )++99
Methanospirillum hungatei (M60880 )++96
Uncultured archaeon Arc No. 5 (AF395423 )+++96-99
Uncultured archaeon clone GW70-10-2 (AY062229 )+98
Uncultured archaeon clone RS500-12 (AY063697 )+96
Uncultured archaeon SAGMA-J2 (AB050215 )+99
Uncultured Methanosarcinaceae archaeon Gap-A19 (AF399332 )+99
Unidentified archaeon clone vadinCA25 (U81777 )++99
Unidentified archaeon clone vadinDC06 (U81775 )+98
Unidentified methanogen ARC43 (AF029201 )+97
Unidentified methanogen ARC62 (AF029205 )+++97