ArticleEnvironmental microbiome2024
Metagenomic insights into Heimdallarchaeia clades from the deep-sea cold seep and hydrothermal vent.
Article in Environmental microbiome, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Structural insights into light harvesting by antenna-containing rhodopsins in marine Asgard archaea.Nature microbiology · 2025Article
- Unveiling the life of archaea in sediments: Diversity, metabolic potentials, and ecological roles.iMetaOmics · 2025Review
- The Asgard archaeal origins of Arf family GTPases involved in eukaryotic organelle dynamics.Nature microbiology · 2025Article
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7 authors.
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Abstract
Heimdallarchaeia is a class of the Asgardarchaeota, are the most probable candidates for the archaeal protoeukaryote ancestor that have been identified to date. However, little is known about their life habits regardless of their ubiquitous distribution in diverse habitats, which is especially true for Heimdallarchaeia from deep-sea environments. In this study, we obtained 13 metagenome-assembled genomes (MAGs) of Heimdallarchaeia from the deep-sea cold seep and hydrothermal vent. These MAGs belonged to orders o_Heimdallarchaeales and o_JABLTI01, and most of them (9 MAGs) come from the family f_Heimdallarchaeaceae according to genome taxonomy database (GTDB). These are enriched for common eukaryote-specific signatures. Our results show that these Heimdallarchaeia have the metabolic potential to reduce sulfate (assimilatory) and nitrate (dissimilatory) to sulfide and ammonia, respectively, suggesting a previously unappreciated role in biogeochemical cycling. Furthermore, we find that they could perform both TCA and rTCA pathways coupled with pyruvate metabolism for energy conservation, fix CO
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