Table 1: Microbial cooperation in organic matter degradation [7].

MicroorganismsElectron donorElectron acceptorProductReaction type

Fermentative bacteriaOrganic carbonOrganic carbonCO2Fermentation
Syntrophic bacteriaOrganic carbonOrganic carbonH2Acidogenesis
Acetogenic bacteriaOrganic carbon/H2CO2CH3COOHAcetogenesis
Methogenic bacteriaOrganic carbon/H2CO2CH4Methanogenesis