TABLE 2.

MPN counts for anaerobic guilds from Soap Lake samples obtained in July and October

SampleMPN counts (105 cells ml−1 or 105 cells g−1)
SRPFermentative bacteriaIRBMethanogens
LactateFormateButyrateGlycerolGlycerolBetaineLactateLactate + molybdateAcetateTMAH2 + CO2
July
    Mixolimnion00000000000
    Chemocline0.0120.240.0460.0242.4000.046000
    Monimolimnion110.240.0460.114.60.464600.240.280.0240.0093
    Mixolimnion sediment2.40.460.460.11112.4244.60.460.0240.0093
    Monimolimnion sediment110.240.240.112.41.146150.0460.0240.0023
October
    Mixolimnion00000000000
    Chemocline00.240.0460.02400.2400.046000
    Monimolimnion240.0930.110.24114.6152401.10.0240.0093
    Mixolimnion sediment2.40.460.0462.4241146240.0240.0240.0093
    Monimolimnion sediment0.240.241.11.14.60.241501100460.0240.0023