ArticleScientific reports2020
The identification of sulfide oxidation as a potential metabolism driving primary production on late Noachian Mars.
Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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11 citing papers in PubMed, 36 citations in OpenAlex.
- Metagenomic insights into the taxonomic and metabolic diversity of the microbiome of Lake Karum in the Danakil Depression, Ethiopia.Environmental microbiome · 2026Article
- Multi-technique characterization of iron reduction by an AntarcticApplied and environmental microbiology · 2025Article
- Metal Mobilization from Thawing Permafrost Is an Emergent Risk to Water Resources.ACS ES&T water · 2025Review
- Sulfur-cycling chemolithoautotrophic microbial community dominates a cold, anoxic, hypersaline Arctic spring.Microbiome · 2023Article
- Cold Sulfur Springs-Neglected Niche for Autotrophic Sulfur-Oxidizing Bacteria.Microorganisms · 2023Review
- Water sources and composition of dissolved gases and bubbles in a saline high Arctic spring.PloS one · 2023Article
- Deep Subsurface Hypersaline Environment as a Source of Novel Species of Halophilic Sulfur-Oxidizing Bacteria.Microorganisms · 2022Article
- Sulfur Cycling as a Viable Metabolism under Simulated Noachian/Hesperian Chemistries.Life (Basel, Switzerland) · 2022Article
- Microbes from Brine Systems with Fluctuating Salinity Can Thrive under Simulated Martian Chemical Conditions.Life (Basel, Switzerland) · 2021Article
- Active microbial ecosystem in glacier basal ice fuelled by iron and silicate comminution-derived hydrogen.MicrobiologyOpen · 2021Article
- Intersection of Biotic and Abiotic Sulfur Chemistry Supporting Extreme Microbial Life in Hot Acid.The journal of physical chemistry. B · 2021Article
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Authors and funding
9 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The transition of the martian climate from the wet Noachian era to the dry Hesperian (4.1-3.0 Gya) likely resulted in saline surface waters that were rich in sulfur species. Terrestrial analogue environments that possess a similar chemistry to these proposed waters can be used to develop an understanding of the diversity of microorganisms that could have persisted on Mars under such conditions. Here, we report on the chemistry and microbial community of the highly reducing sediment of Colour Peak springs, a sulfidic and saline spring system located within the Canadian High Arctic. DNA and cDNA 16S rRNA gene profiling demonstrated that the microbial community was dominated by sulfur oxidising bacteria, suggesting that primary production in the sediment was driven by chemolithoautotrophic sulfur oxidation. It is possible that the sulfur oxidising bacteria also supported the persistence of the additional taxa. Gibbs energy values calculated for the brines, based on the chemistry of Gale crater, suggested that the oxidation of reduced sulfur species was an energetically viable metabolism for life on early Mars.
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