Reaction El. Donor El. Acceptor Process M. Category Examples
Nitrogen cycle
1 N2/NH4+ (Oxic) Nitrate reduction Unknown O2 Aerobic respiration Chemolitrotroph Cianobacteria
1 N2/NH4+ (Anoxic) N2 Fixation Reducing power NAD(P N2 Anaerobic respiration Chemo and photo/ Auto and hetero Nitrobacter
2 NH4+/NO2-(Oxic) Ammonia oxydation Ammonia NO2- Aerobic respiration Chemolitrotroph(auto and hetero)
3 3.NO2-/ NO3- (Oxic) Nitrite oxydation Nitrite Oxygen Aerobic respiration Chemolitrotroph(auto and hetero) Chlostridium
4 and 5 NO3-/ NO2 =NO2-/N2 = NH4+/N2 (Anoxic Reduction and denitrification Unknown Organic or In NO3-= NO2-= NH4+ Anaerobic respiration Chemo and photo/ Auto and heter Pseudomonas
Carbon Cycle
1 C.org/CO2 (Oxic) Oxidation Organic carbon Oxygen (O2) Aerobic respiration Chemoorganoheterotroph E.Coli
1 C.org/CO2 (Anoxic) Oxidation in anaerobic conditions Organic carbon Unknown Anaerobic respiration Chemoorganoheterotroph E.Coli
2 CO2/C.org Reduction H2O CO2 Carbon fixation Litoautotroph/Photoautotroph Cianobacteria
3 C.Org/C.org oxidized Oxidation Organic carbon C. Organic oxidized Fermentation Chemoorganoheterotroph Steptococcus
4 CO/CO2 Oxidation unknown CO2 Aerobic
5 CH4/CO2 (Oxic) Oxidation CH4 O2 Aerobic respiration Chemolitoheterotroph Methanotrophagus
6 CH4/CO2 (Anoxic) Oxidation in anaerobic conditions CH4 Unknown Anaerobic respiration Chemolitoheterotroph Methanotrophagus
7 CO2/CH4 Reduction H2 C Methanogenesis Chemolitho Archaea
7C.Org/CH4 Oxidation unknown C Methanogenesis Chemoorgano h.org/CO2 (Oxic)
Sulfur cycle
1 H2S/Sº oxic sulfur oxidation H2S O2 aerobic respiration chemolitothroph Purple sulfur bacteria
1 H2S/Sº anoxic sultur oxidation H2S NO2 anaerobic respiration chemolitothroph Ectothiorhodospiraceae
2 Sº/SO4-2 oxic sulfur oxidation Sº O2 aerobic respiration chemolitothroph Halothiobacillus
2 Sº/SO4-2 anoxic Sulfur oxidation Sº SO2-1 anaerobic respiration chemolitothroph SOB: Chromatiaceae
3 SO4-2/Sº anoxic Sulfur reduction SO4-2 Sº anaerobic respiration chemolitothroph SRB:Desulfovibrio vulgaris
3 Sº/H2S anoxic Sulfur reduction Sº H2S anaerobic respiration chemolitothroph Desulfovibrio vulgaris
Planctomicetes, nitrosomas and thaumarchaeota