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The latest Nature published by Chinese scholars: A new way of carbon metabolism by methanogenic archaea

 Last Update: 2022-01-10
 Source: Internet
 Author: User

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On December 23, Beijing time, "Nature" published online the latest research results of the Energy Microbiology Innovation Team of the Biogas Science Institute of the Ministry of Agriculture and Rural Affairs
.

The team cooperated with Shenzhen University, Germany's Max Planck Institute of Marine Microbiology, and Sinopec Microbial Oil Recovery Key Laboratory and other units to discover a new type of methanogenic archaea, and confirmed that it can directly oxidize long-chain alkyl hydrocarbons to produce methane.

Methanogenic archaea are the earliest type of prokaryotic microorganisms from the origin of life on earth.

They are the main contributor to global atmospheric methane emissions and are also the key functional microorganisms for the degradation of organic matter in anoxic environment to produce methane (commonly known as biogas fermentation)

The study confirmed that a new type of methanogenic archaea (Ca.
Methanoliparum) can directly oxidize long-chain alkyl hydrocarbons through β-oxidation through stable carbon isotope labeling culture, metagenomic and macrotranscriptome sequencing, and high-resolution mass spectrometry.
, Wood-Ljungdahl (Wood-Ljungdahl) pathway enters the methanogenesis metabolism, without the need for mutual metabolism to complete, thus proposing the fifth methane production pathway
.

This research has perfected the biogeochemical process of the carbon cycle and laid a scientific foundation for the biogasification of residual crude oil in depleted oil reservoirs ("underground biogas project")

The project was funded by the National Natural Science Foundation of China, the Science and Technology Innovation Project of the Chinese Academy of Agricultural Sciences, and the special fund for basic scientific research operations of central public welfare scientific research institutes

Link to the paper: https://

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