Greenhouse gases are atmospheric compounds like carbon dioxide, methane, and nitrous oxide that trap heat and drive global climate change. In plant science, this topic is critical because plants both respond to rising CO2 levels through altered growth and photosynthesis, and certain crops—particularly flooded systems—are significant sources of methane emissions. Understanding these dynamics helps researchers develop crop varieties and farming practices that reduce agricultural greenhouse gas output while maintaining yields.
Scientists sequenced the genome of a newly identified soil bacterium, Oscillospiraceae strain ZGZL, that breaks down chloromethane without oxygen. Found in rice paddy soil, this microbe offers a biological clue to how waterlogged farmland soils may help neutralize a gas that plants naturally emit and that depletes the ozone layer.
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Strain ZGZL degrades chloromethane under fully anaerobic conditions, the oxygen-free environment characteristic of flooded rice paddy soil
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The bacterium has a compact genome of 2.04 Mb with a G+C content of 52.56%, assembled from metagenomic sequencing rather than lab culture
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This is the first genomic characterization of an anaerobic chloromethane-degrading member of the family Oscillospiraceae
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