Table 3.

Threshold acetate concentrations for methanogenesis by pure cultures of methanogenic archaea and steady-state concentrations of acetate in anoxic rice paddy soil systems

Strain or systemAcetate concn (μM)Reference or source
Strains
Methanosarcina barkeriFusaro24425
Methanosarcina barkeri2271,18069
Methanosarcina barkeri MST 850This study
Methanosarcina mazeiS-639769
Methanosarcina thermophila CALS-119037
Methanosarcina sp. strain VeA23310This study
Methanosaeta conciliiOpfikon725
Methanosaeta concilii VeAc9<10This study
Methanosaetasp. Los Angeles River strain6969
Methanosaeta thermoacetophilaCALS-11237
Systems
 Pore water from Italian rice paddy soil16–9751
 Pore water from rice paddy soil microcosms10.6 ± 0.2a This study
 Methanogenic slurries of Italian rice paddy soil20–401
  • a Mean ± SD.