[Oxidative phosphorylation in Propionibacterium]
Related Experiment Video
Updated: Oct 21, 2026

Measurement of Mitochondrial Oxygen Consumption in Permeabilized Fibers of Drosophila Using Minimal Amounts of Tissue
Published on: April 7, 2018
Abstract:
Oxidative phosphorylation during electron transport in the respiratory chain was found in two propionic bacteria, P. shermanii and P. petersonii. Its effectiveness, with oxygen as the terminal acceptor of electrons, was higher in P. petersonii, a more aerobic culture, than in P. shermanii. Oxidative phosphorylation with the participation of the electron transport chain was not found in P. petersonii in the absence of oxygen. Oxidative phosphorylation can take place together with the reactions of propionic fermentation in P. shermanii upon a small rearrangement of the respiration chain (if fumarate reductase is substituted for cytochrome oxidase).
Related Concept Videos
Peroxisomes
Pyruvate Oxidation
First, the enzyme pyruvate dehydrogenase removes the carboxyl group from pyruvate and releases it as carbon dioxide. The stripped molecule is then oxidized and releases electrons, which are then picked up by NAD+...
Chemiosmosis
Electron Transport Chain
The electron transport chain involves a series of protein complexes on the inner mitochondrial membrane that undergo a series of redox reactions. At the end of this chain, the electrons reduce...
Electron Transport Chain: Complex III and IV
Electron Transport Chain Components
Anoxygenic Photosynthesis

