Electron transport in acetate-grown Methanosarcina acetivorans
2011
Electron Transport in Methanosarcina acetivorans
publication
Evidence: moderate
Author Information
Author(s): Wang Mingyu, Tomb Jean-Francois, Ferry James G
Primary Institution: The Pennsylvania State University
Hypothesis
The study investigates the electron transport pathways in the non-H2-utilizing methanogen Methanosarcina acetivorans.
Conclusion
The results indicate that ferredoxin, cytochrome c, and methanophenazine play significant roles in the electron transport pathway of Methanosarcina acetivorans.
Supporting Evidence
- The study provides the first report of cytochrome c involvement in acetotrophic methanogenesis.
- Mass spectrometry identified the ferredoxin involved in the electron transport chain.
- The results suggest diverse electron transport pathways have evolved in acetotrophic Methanosarcina species.
Takeaway
This study shows how a tiny organism called Methanosarcina acetivorans makes energy without using hydrogen, using different parts to move electrons around.
Methodology
The study involved biochemical assays to purify and analyze components of the electron transport chain in Methanosarcina acetivorans.
Digital Object Identifier (DOI)
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