
Microorganisms living in anoxic rice soils contribute 10 to 25% of global methane emissions. The most important carbon source for CH 4 production is plant-derived carbon that enters soil as root exudates and debris. Pulse labeling of rice plants with 13 CO 2 resulted in incorporation of 13 C into the ribosomal RNA of Rice Cluster I Archaea in the soil, indicating that this archaeal group plays a key role in CH 4 production from plant-derived carbon. This group of microorganisms has not yet been isolated but appears to be of global environmental importance.
Carbon Isotopes, Molecular Sequence Data, Oryza, RNA, Archaeal, Carbon Dioxide, Archaea, Plant Roots, RNA, Ribosomal, 16S, Cloning, Molecular, Photosynthesis, Methane, Ecosystem, Phylogeny, Polymorphism, Restriction Fragment Length, Soil Microbiology, Hydrogen
Carbon Isotopes, Molecular Sequence Data, Oryza, RNA, Archaeal, Carbon Dioxide, Archaea, Plant Roots, RNA, Ribosomal, 16S, Cloning, Molecular, Photosynthesis, Methane, Ecosystem, Phylogeny, Polymorphism, Restriction Fragment Length, Soil Microbiology, Hydrogen
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