Table 3.

Sequence similarities of DSR α- and β-subunit gene fragments in sulfate-reducing prokaryotesa

Frag- mentPercent similarity (α subunit/β subunit) with fragment
AfulDvulDPT2DP1BDlatDsapDlimDmulDrum
Aful
Dvul62/57
DPT258/5683/89
Doxy60/5679/7275/72
Dlat59/5570/6567/7167/68
Dsap57/6072/7071/7273/7170/77
Dlim58/5966/6565/6468/6470/7171/73
Dmul57/5865/7367/7467/6963/6772/7771/75
Drum61/6161/6259/6258/5960/5960/6457/6351/61
Tyel56/6250/5451/5349/5352/5553/5758/5953/5353/61
  • a Only alignment positions represented in all aligned sequences for which nucleotides were determined unambiguously were included for the pairwise calculations. Fragments (GenBank accession numbers for each DSR sequence [α/β] are given in parentheses.): Aful,Archaeoglobus fulgidus: Dvul,Desulfovibrio vulgaris; DPT2,Desulfovibrio sp. strain PT-2 (U58114/U58115); DP1B, Desulfovibrio oxyclinae P1B2 (U58116/U58117); Dlat, Desulfobacter latus (U58124/U58125), Dsap, Desulfobotulus sapovorans (U58120/U58121); Dlim,Desulfonema limicola (U58128/U58129); Dmul,Desulfococcus multivorans (U58126/ U58127); Drum,Desulfotomaculum ruminis (U58118/U58119); Tyel,Thermodesulfovibrio yellowstonii(U58122/U58123).