ArticleGeobiology2020
Micro- and nano-scale mineralogical characterization of Fe(II)-oxidizing bacterial stalks.
Article in Geobiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
What it found
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Who cites it
4 citing papers in PubMed, 10 citations in OpenAlex.
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- Microbial respiration - a biomineral perspective.FEMS microbiology ecology · 2025Review
- Phosphorus Interactions with Iron in Undisturbed and Disturbed Arctic Tundra Ecosystems.Environmental science & technology · 2024Article
- Nanoscale transformations of amphiboles within human alveolar epithelial cells.Scientific reports · 2022Article
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Authors and funding
6 authors at 4 institutions in 3 countries.
Funding
Abstract
Neutrophilic, microaerobic Fe(II)-oxidizing bacteria (FeOB) from marine and freshwater environments are known to generate twisted ribbon-like organo-mineral stalks. These structures, which are extracellularly precipitated, are susceptible to chemical influences in the environment once synthesized. In this paper, we characterize the minerals associated with freshwater FeOB stalks in order to evaluate key organo-mineral mechanisms involved in biomineral formation. Micro-Raman spectroscopy and Field Emission Scanning Electron Microscopy revealed that FeOB isolated from drinking water wells in Sweden produced stalks with ferrihydrite, lepidocrocite and goethite as main mineral components. Based on our observations made by micro-Raman Spectroscopy, field emission scanning electron microscopy and scanning transmission electron microscope combined with electron energy-loss spectroscopy, we propose a model that describes the crystal-growth mechanism, the Fe-oxidation state, and the mineralogical state of the stalks, as well as the biogenic contribution to these features. Our study suggests that the main crystal-growth mechanism in stalks includes nanoparticle aggregation and dissolution/re-precipitation reactions, which are dominant near the organic exopolymeric material produced by the microorganism and in the peripheral region of the stalk, respectively.
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Registered trials
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