Oxidative biotransformation of biotite and glauconite by alkaliphilic anaerobes: The effect of Fe oxidation on the weathering of phyllosilicates

Заварзина, Д. Г.; Chistyakova, N. I.; Shapkin, Alexey V.; Савенко, А. В.; Zhilina, T. N.; Kevbrin, V. V.; Alekseeva, Tatiana; Mardanov, Andrey V.; Гаврилов, С. Н.; Bychkov, A. Yu.

doi:10.1016/j.chemgeo.2016.06.015

Cited by 20 publications

(11 citation statements)

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“…Based on these observations, we hypothesize that this microorganism would be able to perform carbonate-dependent Fe(II)-oxidation. Thermodynamic calculations supported this suggestion 17 . Further investigations demonstrated the ability of alkaliphilic autotrophic acetogenic bacterium Fuchsiella ferrireducens , as well as a syntrophic culture of G. ferrihydriticus and Candidatus “Contubernalis alkalaceticum” to oxidise siderite anaerobically in the presence of ethanol 27 , 28 .…”

Section: Introductionmentioning

confidence: 69%

“…oxyhydroxides 19 , 20 , clay minerals 21 , 22 , and phylosilicates 23 . It is worth noting that magnetite and siderite are the main reduced minerals produced in microbial iron reduction 14 – 17 .…”

Section: Introductionmentioning

confidence: 99%

“…The third, recently demonstrated route of anaerobic microbial iron oxidation has only been shown for alkaliphilic bacteria. The autotrophic Fe(III)-reducing bacterium Geoalkalibacter ferrihydriticus was shown to be capable of transforming biotite and glauconite, Fe(II)/Fe(III)-containing phyllosilicates, to magnetite in the presence of acetate at pH 9.5 17 . During the experiment, the additional formation of acetate was observed instead of its expected oxidation, while Mӧssbauer spectral analysis revealed that magnetite was formed due to Fe(II)-oxidation rather than Fe(III)-reduction.…”

Section: Introductionmentioning

confidence: 99%

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Siderite-based anaerobic iron cycle driven by autotrophic thermophilic microbial consortium

Заварзина

Kochetkova

Chistyakova

et al. 2020

Sci Rep

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Using a sample from a terrestrial hot spring (pH 6.8, 60 °C), we enriched a thermophilic microbial consortium performing anaerobic autotrophic oxidation of hydrothermal siderite (FeCO3), with CO2/bicarbonate as the electron acceptor and the only carbon source, producing green rust and acetate. In order to reproduce Proterozoic environmental conditions during the deposition of banded iron formation (BIF), we incubated the microbial consortium in a bioreactor that contained an unmixed anoxic layer of siderite, perfectly mixed N2/CO2-saturated liquid medium and microoxic (2% O2) headspace. Long-term incubation (56 days) led to the formation of magnetite (Fe3O4) instead of green rust as the main product of Fe(II) oxidation, the precipitation of newly formed metabolically induced siderite in the anoxic zone, and the deposition of hematite (Fe2O3) on bioreactor walls over the oxycline boundary. Acetate was the only metabolic product of CO2/bicarbonate reduction. Thus, we have demonstrated the ability of autotrophic thermophilic microbial consortium to perform a short cycle of iron minerals transformation: siderite–magnetite–siderite, accompanied by magnetite and hematite accumulation. This cycle is believed to have driven the evolution of the early biosphere, leading to primary biomass production and deposition of the main iron mineral association of BIF.

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Section: Introductionmentioning

confidence: 69%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Siderite-based anaerobic iron cycle driven by autotrophic thermophilic microbial consortium

Заварзина

Kochetkova

Chistyakova

et al. 2020

Sci Rep

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“…This process has not been previously reported in Fe(III) reducers. In our recent report, we have demonstrated oxidation of structural Fe(II) but not the reduction of Fe(III) from glauconite by the alkaliphilic dissimilatory iron-reducer Geoalkalibacter ferrihydriticus during acetogenic growth ( Zavarzina et al, 2016 ). In contrast to that finding, C. thermautotrophica performed the reduction of structural Fe(III) from the same mineral, as clearly indicated by the formation of siderite ( Figure 5 ) and the increase of extractable Fe(II) concentration ( Figure 4 ) during strain 019 cultivation with glauconite.…”

Section: Discussionmentioning

confidence: 99%

Genomic Insights Into Energy Metabolism of Carboxydocella thermautotrophica Coupling Hydrogenogenic CO Oxidation With the Reduction of Fe(III) Minerals

et al. 2018

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The genus Carboxydocella forms a deeply branching family in the class Clostridia and is currently represented by three physiologically diverse species of thermophilic prokaryotes. The type strain of the type species, Carboxydocella thermautotrophica 41T, is an obligate chemolithoautotroph growing exclusively by hydrogenogenic CO oxidation. Another strain, isolated from a hot spring at Uzon caldera, Kamchatka in the course of this work, is capable of coupling carboxydotrophy and dissimilatory reduction of Fe(III) from oxic and phyllosilicate minerals. The processes of carboxydotrophy and Fe(III) reduction appeared to be interdependent in this strain. The genomes of both isolates were sequenced, assembled into single chromosome sequences (for strain 41T a plasmid sequence was also assembled) and analyzed. Genome analysis revealed that each of the two strains possessed six genes encoding diverse Ni,Fe-containing CO dehydrogenases (maximum reported in complete prokaryotic genomes), indicating crucial role of carbon monoxide in C. thermautotrophica metabolism. Both strains possessed a set of 30 multiheme c-type cytochromes, but only the newly isolated Fe-reducing strain 019 had one extra gene of a 17-heme cytochrome, which is proposed to represent a novel determinant of dissimilatory iron reduction in prokaryotes. Mössbauer studies revealed that strain 019 induced reductive transformation of the abundant ferric/ferrous-mica mineral glauconite to siderite during carboxydotrophic growth. Reconstruction of the C. thermautotrophica strains energy metabolism is the first comprehensive genome analysis of a representative of the deep phylogenetic branch Clostridia Incertae Sedis, family V. Our data provide insights into energy metabolism of C. thermautotrophica with an emphasis on its ecological implications.

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“…Mineral weathering in terrestrial ecosystems plays crucial roles in soil formation and in the long‐term drawdown of atmospheric CO 2 . Bacteria have been reported to significantly promote the dissolution of minerals through the production of acids and metal‐complexing ligands or by changing redox conditions and mediating the formation of secondary mineral phases . Specifically, organic acids produced by bacteria play key roles in mineral dissolution .…”

Section: Introductionmentioning

confidence: 99%

Distinct biotite‐weathering activities of Arthrobacter pascens F74 under different contact conditions

Sun

Wang

et al. 2019

J Basic Microbiol

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Bacteria play important roles in mineral weathering and soil formation. However, little is known regarding the interactions between biotite and Arthrobacter strains. In this study, the mineral–mineral activities of the Arthrobacter pascens F74 isolated from a weathered rock surface were evaluated for its weathering behavior under direct contact and no contact with biotite. No contact was obtained by using dialysis bags. When directly in contact with biotite, Al and Fe concentrations increased by 9‐ to 47‐fold compared with the controls in the presence of strain F74. Furthermore, strain F74 increased mobilized Al by 106% to 175% and Fe by 29% to 123% under direct contact than under no contact conditions. During biotite dissolution, significantly higher cell numbers and lower pH in the culture medium were observed in the presence of strain F74 under direct contact conditions than under no contact conditions. Significantly higher gluconic acid concentration and glucose dehydrogenase activity were found under direct contact conditions than under no contact and no biotite conditions. Scanning electron microscopy analysis showed cell adhesion on the biotite surface. These results demonstrated that strain F74 behaved differently with respect to biotite‐weathering effectiveness and mechanisms under different contact conditions. The results also suggested that direct contact between biotite and strain F74 was important for the production of gluconic acid, cell adhesion on the mineral surface, and the mineral dissolution of the strain.

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Oxidative biotransformation of biotite and glauconite by alkaliphilic anaerobes: The effect of Fe oxidation on the weathering of phyllosilicates

Cited by 20 publications

References 78 publications

Siderite-based anaerobic iron cycle driven by autotrophic thermophilic microbial consortium

Siderite-based anaerobic iron cycle driven by autotrophic thermophilic microbial consortium

Genomic Insights Into Energy Metabolism of Carboxydocella thermautotrophica Coupling Hydrogenogenic CO Oxidation With the Reduction of Fe(III) Minerals

Distinct biotite‐weathering activities of Arthrobacter pascens F74 under different contact conditions

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