ArticleFrontiers in microbiology2013
Metagenome sequence analysis of filamentous microbial communities obtained from geochemically distinct geothermal channels reveals specialization of three aquificales lineages.
Article in Frontiers in microbiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.
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Who cites it
45 citing papers in PubMed, 85 citations in OpenAlex.
- Exploring the biotechnological potential of terrestrial hot spring microbiomes for COEnvironmental microbiome · 2026Article
- Cross-Feeding of Carbon and Nitrogen Between Aquificales and Thermus in Hot Springs.Environmental microbiology · 2026Article
- Microbial diversity and metabolic predictions of high-temperature streamer biofilms using metagenome-assembled genomes.Scientific reports · 2025Article
- Simultaneous aerobic and anaerobic respiration in hot spring chemolithotrophic bacteria.Nature communications · 2025Article
- Respiratory processes of early-evolved hyperthermophiles in sulfidic and low-oxygen geothermal microbial communities.Nature communications · 2025Article
- Covariation of hot spring geochemistry with microbial genomic diversity, function, and evolution.Nature communications · 2024Article
- A genus in the bacterial phylum Aquificota appears to be endemic to Aotearoa-New Zealand.Nature communications · 2024Article
- An active microbiome in Old Faithful geyser.PNAS nexus · 2023Article
- Insights on Microbial Communities Inhabiting Non-Volcanic Hot Springs.International journal of molecular sciences · 2022Article
- Sulfur cycling and host-virus interactions in Aquificales-dominated biofilms from Yellowstone's hottest ecosystems.The ISME journal · 2022Article
- Unique Geothermal Chemistry Shapes Microbial Communities on Mt. Erebus, Antarctica.Frontiers in microbiology · 2022Article
- Late Ediacaran life on land: desiccated microbial mats and large biofilm streamers.Proceedings. Biological sciences · 2021Article
- Ecological Dichotomies Arise in Microbial Communities Due to Mixing of Deep Hydrothermal Waters and Atmospheric Gas in a Circumneutral Hot Spring.Applied and environmental microbiology · 2021Article
- High Potential for Biomass-Degrading Enzymes Revealed by Hot Spring Metagenomics.Frontiers in microbiology · 2021Article
- Comparative Metagenomic Analysis of Two Hot Springs From Ourense (Northwestern Spain) and Others Worldwide.Frontiers in microbiology · 2021Article
- Relationship between Microorganisms Inhabiting Alkaline Siliceous Hot Spring Mat Communities and Overflowing Water.Applied and environmental microbiology · 2020Article
- Microbes involved in arsenic mobilization and respiration: a review on isolation, identification, isolates and implications.Environmental geochemistry and health · 2020Review
- Meta-Analysis of Microbial Communities in Hot Springs: Recurrent Taxa and Complex Shaping Factors beyond pH and Temperature.Microorganisms · 2020Article
- Diversity and Distribution of a Novel Genus of HyperthermophilicFrontiers in microbiology · 2020Article
- Physiology, Metabolism, and Fossilization of Hot-Spring Filamentous Microbial Mats.Astrobiology · 2019Article
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Authors and funding
15 authors at 9 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The Aquificales are thermophilic microorganisms that inhabit hydrothermal systems worldwide and are considered one of the earliest lineages of the domain Bacteria. We analyzed metagenome sequence obtained from six thermal "filamentous streamer" communities (∼40 Mbp per site), which targeted three different groups of Aquificales found in Yellowstone National Park (YNP). Unassembled metagenome sequence and PCR-amplified 16S rRNA gene libraries revealed that acidic, sulfidic sites were dominated by Hydrogenobaculum (Aquificaceae) populations, whereas the circum-neutral pH (6.5-7.8) sites containing dissolved sulfide were dominated by Sulfurihydrogenibium spp. (Hydrogenothermaceae). Thermocrinis (Aquificaceae) populations were found primarily in the circum-neutral sites with undetectable sulfide, and to a lesser extent in one sulfidic system at pH 8. Phylogenetic analysis of assembled sequence containing 16S rRNA genes as well as conserved protein-encoding genes revealed that the composition and function of these communities varied across geochemical conditions. Each Aquificales lineage contained genes for CO2 fixation by the reverse-TCA cycle, but only the Sulfurihydrogenibium populations perform citrate cleavage using ATP citrate lyase (Acl). The Aquificaceae populations use an alternative pathway catalyzed by two separate enzymes, citryl-CoA synthetase (Ccs), and citryl-CoA lyase (Ccl). All three Aquificales lineages contained evidence of aerobic respiration, albeit due to completely different types of heme Cu oxidases (subunit I) involved in oxygen reduction. The distribution of Aquificales populations and differences among functional genes involved in energy generation and electron transport is consistent with the hypothesis that geochemical parameters (e.g., pH, sulfide, H2, O2) have resulted in niche specialization among members of the Aquificales.
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