Fig. 6: Overview of the wetland soil dynamics and biogeochemical cycling in Atabeyarchaeia and Freyarchaeia.
From: Asgard archaea modulate potential methanogenesis substrates in wetland soil
Complete genomes for Atabeyarchaeia and Freyarchaeia are shown with green and orange circles, respectively. The Atabeyarchaeia (Atabeya-1 and Atabeya-2) and Freyarchaeia (Freya) genomes were isolated and carefully curated and closed from wetland soil between 60-100 cm. These anaerobic lineages were shown in this study to encode the Wood-Ljungdahl Pathway for CO2 fixation (e.g., methylated compounds such as quaternary amines) and Embden-Meyerhof-Parnas (EMP) Pathway, components of chemolithotrophy and heterotrophy, producing acetate shown by the arrows (green and orange), corresponding to the taxonomic lineage colors. The metabolic versatility of these soil Asgardarchaeota like their marine counterparts may provide a competitive advantage in wetlands. A detailed description of the specific pathways is found in the main text, Fig. 2, and supplementary materials. Created using BioRender.com.
