External terminal electron acceptors other than oxygen may include:
- nitrate
- nitrite
- sulfate
- sulfur
- ferric iron
- manganese compounds
- carbon dioxide
- fumarate
- chlorinated compounds
- other oxidized substrates
Operational definition
Metabolic mode.
Respiration in which an externally available terminal electron acceptor other than molecular oxygen receives electrons from the respiratory system.
Possible acceptors include:
- nitrate;
- nitrite;
- sulfate;
- sulfur;
- ferric iron;
- manganese compounds;
- carbon dioxide;
- fumarate;
- other oxidized compounds.
It differs from fermentation because the terminal acceptor is supplied from outside the substrate-derived internal redox sequence.