Physiological basis for atmospheric methane oxidation and methanotrophic growth on air

HIGHLIGHTS

• What: The authors assess the ability and strategies of seven methanotrophic species to grow with air as sole energy, carbon, and nitrogen source. The work shows that atmMOB grow on the trace concentrations of methane, carbon monoxide, and hydrogen present in air and outlines the metabolic strategies that enable atmMOB to mitigate greenhouse gases. The authors propose that to overcome energy limitations when exposed to air, all three strains upregulate the expression of enzymes for the oxidation of at least one trace gas to maximize uptake rates and energy yield, while investments in energy conservation and energyintensive . . .
  

   

  

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