I have a question about the electron donor and acceptor of methanogens
for Hydrogenotrophic methanogens i think the donor is hydrogen and acceptor is carbon dioxide
For hydrogenotrophic methanogens:
Donor: H2
Acceptor: CO2
For Acetoclastic methanogens
Donor: Acetate
Acceptor CO2
For Methylotrophic methanogens
Donor: methylamines/methanol
Acceptor CO2
Biwen Annie An Stepec thank for your answer
but i'm still confused
for Acetoclastic methanogens
the methane production reaction is like CH3COOH- + H2O ---> CH4 + HCO3-
and it is a dismutation reaction
in this reaction how to tell the donor is acetate and acceptor
best
Hi Chao-Jui Chang
To clarify the acetoclastic methanogens, they first activate the acetate and convert it to acetyl-CoA. The acetyl-coA is then split by CODH/acetyl-CoA synthase complex, which transfers the methyl group to form the eventual CH4. The carbonyl group is then oxidized to CO2, which is used as the electron acceptor.
This is a very simplified version, i think this publication is more helpful: Article Methanogens: biochemical background and biotechnological applications