ArticleScientific reports2021
Transition from unclassified Ktedonobacterales to Actinobacteria during amorphous silica precipitation in a quartzite cave environment.
Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed, 27 citations in OpenAlex.
- Genomic evidence for aerotrophy as a defining trait of Ktedonobacteria inhabiting silica-rich oligotrophic caves.ISME communications · 2026Article
- Microbial and Geochemical Variability in Sediments and Biofilms from Italian Gypsum Caves.Microbial ecology · 2025Article
- Metabolism of CO and H2 by pioneer bacteria in volcanic soils and the phyllosphere.The ISME journal · 2025Review
- Novel diversity of Anaerolineae and Tepidiformia recovered from metagenomes of thermal microbial mats in Costa Rica.Frontiers in microbiology · 2025Article
- Article
- The microbiota characterizing huge carbonatic moonmilk structures and its correlation with preserved organic matter.Environmental microbiome · 2024Article
- Prevalence of trace gas-oxidizing soil bacteria increases with radial distance from Polloquere hot spring within a high-elevation Andean cold desert.The ISME journal · 2024Article
- Lithic bacterial communities: ecological aspects focusing onFrontiers in microbiology · 2024Article
- 16S and 18S rDNA Amplicon Sequencing Analysis of Aesthetically Problematic Microbial Mats on the Walls of the Petralona Cave: The Use of Essential Oils as a Cleaning Method.Microorganisms · 2023Article
- Article
- Archaea and their interactions with bacteria in a karst ecosystem.Frontiers in microbiology · 2023Article
- Fundamental Science and Engineering Questions in Planetary Cave Exploration.Journal of geophysical research. Planets · 2022Review
- Insights into the microbial life in silica-rich subterranean environments: microbial communities and ecological interactions in an orthoquartzite cave (Imawarì Yeuta, Auyan Tepui, Venezuela).Frontiers in microbiology · 2022Article
- Sasso Pisano Geothermal Field Environment Harbours DiverseMicroorganisms · 2021Article
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Authors and funding
8 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The orthoquartzite Imawarì Yeuta cave hosts exceptional silica speleothems and represents a unique model system to study the geomicrobiology associated to silica amorphization processes under aphotic and stable physical-chemical conditions. In this study, three consecutive evolution steps in the formation of a peculiar blackish coralloid silica speleothem were studied using a combination of morphological, mineralogical/elemental and microbiological analyses. Microbial communities were characterized using Illumina sequencing of 16S rRNA gene and clone library analysis of carbon monoxide dehydrogenase (coxL) and hydrogenase (hypD) genes involved in atmospheric trace gases utilization. The first stage of the silica amorphization process was dominated by members of a still undescribed microbial lineage belonging to the Ktedonobacterales order, probably involved in the pioneering colonization of quartzitic environments. Actinobacteria of the Pseudonocardiaceae and Acidothermaceae families dominated the intermediate amorphous silica speleothem and the final coralloid silica speleothem, respectively. The atmospheric trace gases oxidizers mostly corresponded to the main bacterial taxa present in each speleothem stage. These results provide novel understanding of the microbial community structure accompanying amorphization processes and of coxL and hypD gene expression possibly driving atmospheric trace gases metabolism in dark oligotrophic caves.
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