Interactions between populations of rhizobium, methanotrophs and archaea in two different lowland tropical forest soil communities
Bacteria in the genus Rhizobium, methanogenic bacteria and Archaea are important in the terrestrial carbon (C) and nitrogen (N) cycle dynamics and the sequestration of C and N into the soil biomass. A better understanding of the functions of these microbial groups could provide some clarity on the impact of different land development practices and a changing climate on soil ecosystems. The community structure of these three groups of soil microbes was compared between a secondary forest and a forest dominated by the leguminous tree Pentaclethra macroloba within a Costa Rican rainforest. The secondary forest soils had a greater total microbial biomass and efficiency of C utilization, greater relative abundance of methanotrophs and Archaea 16s rDNA, and greater overall microbial diversity, whereas the relative abundance of Rhizobium was greater in the Pentaclethra macroloba-dominant forest soil. The data suggest that rhizobia, methanotrophs and Archaea are involved in a complex interplay that affects the C and N cycle dynamics. © International Society for Tropical Ecology.
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Lowe, H.; Hauge, J. B.; Barry, D.; and Eaton, W. D., "Interactions between populations of rhizobium, methanotrophs and archaea in two different lowland tropical forest soil communities" (2012). Kean Publications. 2172.