ArticleScientific reports2015
Microbial mediation of complex subterranean mineral structures.
Article in Scientific reports, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- The microbiota characterizing huge carbonatic moonmilk structures and its correlation with preserved organic matter.Environmental microbiome · 2024Article
- Microbial roles in cave biogeochemical cycling.Frontiers in microbiology · 2022Review
- Microbial Community Characterizing Vermiculations from Karst Caves and Its Role in Their Formation.Microbial ecology · 2021Article
- Shotgun metagenomic sequencing from Manao-Pee cave, Thailand, reveals insight into the microbial community structure and its metabolic potential.BMC microbiology · 2019Article
- Article
- Variation of preserving organic matter bound in interlayer of montmorillonite induced by microbial metabolic process.Environmental science and pollution research international · 2018Article
- Article
- Assessment of the Potential Role ofFrontiers in microbiology · 2017Article
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Authors and funding
11 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Helictites--an enigmatic type of mineral structure occurring in some caves--differ from classical speleothems as they develop with orientations that defy gravity. While theories for helictite formation have been forwarded, their genesis remains equivocal. Here, we show that a remarkable suite of helictites occurring in Asperge Cave (France) are formed by biologically-mediated processes, rather than abiotic processes as had hitherto been proposed. Morphological and petro-physical properties are inconsistent with mineral precipitation under purely physico-chemical control. Instead, microanalysis and molecular-biological investigation reveals the presence of a prokaryotic biofilm intimately associated with the mineral structures. We propose that microbially-influenced mineralization proceeds within a gliding biofilm which serves as a nucleation site for CaCO3, and where chemotaxis influences the trajectory of mineral growth, determining the macroscopic morphology of the speleothems. The influence of biofilms may explain the occurrence of similar speleothems in other caves worldwide, and sheds light on novel biomineralization processes.
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Registered trials
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