In Situ Stable Isotope Probing of Methanogenic Archaea in the Rice Rhizosphere
- 12 August 2005
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 309 (5737) , 1088-1090
- https://doi.org/10.1126/science.1113435
Abstract
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.Keywords
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