Sulfate-reducing bacteria influence the nucleation and growth of mackinawite and greigite

Picard, Aude; Gartman, Amy; Clarke, David R.; Girguis, Peter R.

doi:10.1016/j.gca.2017.10.006

Cited by 117 publications

(133 citation statements)

References 92 publications

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“…[ 141 ] The molecules in the EPS or on the surface of the microbes contain negatively charged functional groups with which metallic ions can combine to induce extracellular mineralization. [ 142 ] Surface enzymes such as nitrate reductases that participate in ion reduction are important for nanoparticle formation. [ 143 ] Tryptophan, which possesses an indole group, is known to reduce gold ions to synthesize Ag nanoparticles.…”

Section: Mechanisms Of Microbe‐mediated Mineralizationmentioning

confidence: 99%

Microbe‐Mediated Extracellular and Intracellular Mineralization: Environmental, Industrial, and Biotechnological Applications

et al. 2020

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Bacteria play an important role in the calcification process of natural minerals and within organisms ( Table 1). It is Microbe-mediated mineralization is ubiquitous in nature, involving bacteria, fungi, viruses, and algae. These mineralization processes comprise calcification, silicification, and iron mineralization. The mechanisms for mineral formation include extracellular and intracellular biomineralization. The mineral precipitating capability of microbes is often harnessed for green synthesis of metal nanoparticles, which are relatively less toxic compared with those synthesized through physical or chemical methods. Microbe-mediated mineralization has important applications ranging from pollutant removal and nonreactive carriers, to other industrial and biomedical applications. Herein, the different types of microbe-mediated biomineralization that occur in nature, their mechanisms, as well as their applications are elucidated to create a backdrop for future research.

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Section: Mechanisms Of Microbe‐mediated Mineralizationmentioning

confidence: 99%

Microbe‐Mediated Extracellular and Intracellular Mineralization: Environmental, Industrial, and Biotechnological Applications

et al. 2020

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“…However, its formation in nature is far from understood, especially because its nucleation is kinetically hindered (1). The presence of sulfide-producing microorganisms as passive pyrite nucleation sites indicated support for abiotic pyrite formation (13-15), but could not be reproduced in every bacterial model system (6). We show that pyrite formation can be mediated by microorganisms to overcome the kinetic hurdle of nucleation, but as an essential part of their energy metabolism and not just as a mere abiotic side reaction on their cell surface.…”

Section: Resultsmentioning

confidence: 99%

Pyrite formation from FeS and H₂S is mediated by a novel type of microbial energy metabolism

Thiel

Byrne

Kappler

et al. 2018

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23The exergonic reaction of FeS with H 2 S to form FeS 2 (pyrite) and H 2 was postulated to have 24 operated as an early form of energy metabolism on primordial Earth. Since the Archean, 25 sedimentary pyrite formation played a major role in the global iron and sulfur cycles, with direct 26 impact on the redox chemistry of the atmosphere. To date, pyrite formation was considered a 27 purely geochemical reaction. Here, we present microbial enrichment cultures, which grew with 28FeS, H 2 S, and CO 2 as their sole substrates to produce FeS 2 and CH 4 . Cultures grew over 29 periods of three to eight months to cell densities of up to 2-9×10 6 cells mL −1 . Transformation of 30FeS with H 2 S to FeS 2 was followed by 57 Fe Mössbauer spectroscopy and showed a clear 31 biological temperature profile with maximum activity at 28°C and decreasing activities towards 32 4°C and 60°C. CH 4 was formed concomitantly with FeS 2 and exhibited the same temperature 33 dependence. Addition of either penicillin or 2-bromoethanesulfonate inhibited both FeS 2 and 34 CH 4 production, indicating a syntrophic coupling of pyrite formation to methanogenesis. This 35 hypothesis was supported by a 16S rRNA gene-based phylogenetic analysis, which identified 36 at least one archaeal and five bacterial species. The archaeon was closely related to the 37 hydrogenotrophic methanogen Methanospirillum stamsii while the bacteria were most closely 38 related to sulfate-reducing Deltaproteobacteria, as well as uncultured Firmicutes and 39Actinobacteria. We identified a novel type of microbial metabolism able to conserve energy 40 from FeS transformation to FeS 2 , which may serve as a model for a postulated primordial iron-41 sulfur world. 42 Microbial pyrite formation Thiel et al. 3 of 34 Significance statement 43Pyrite is the most abundant iron-sulfur mineral in sediments. Over geological times, its burial 44 controlled oxygen levels in the atmosphere and sulfate concentrations in seawater. Its 45 formation in sediments is so far considered a purely geochemical process that is at most 46 indirectly supported by microbial activity. We show that lithotrophic microorganisms can directly 47 transform FeS and H 2 S to FeS 2 and use this exergonic reaction as a novel form of energy 48 metabolism that is syntrophically coupled to methanogenesis. Our results provide insights into 49 a syntrophic relationship that could sustain part of the deep biosphere and lend support to the 50 iron-sulfur-world theory that postulated FeS transformation to FeS 2 as a key energy-delivering 51 reaction for life to emerge. 52 Microbial pyrite formation Thiel et al. 4 of 34

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“…The presence of Fe(II) during copper precipitation for example has been shown to modify the mineralogy and increase the crystallinity of copper-sulfides (Mansor et al, 2019). The presence of SRB also modifies the formation mechanism, size, shape, phase, and aggregation state of various metal sulfides (Gramp et al, 2006;Moreau et al, 2007;Xu et al, 2016;Picard et al, 2018). Specific to Ni, Sitte et al (2013) found that crystalline α-NiS formation was favored in cultures of SRB compared to abiotic controls in which only amorphous NiS was precipitated.…”

mentioning

confidence: 99%

Nanoparticulate Nickel-Hosting Phases in Sulfidic Environments: Effects of Ferrous Iron and Bacterial Presence on Mineral Formation Mechanism and Solid-Phase Nickel Distribution

et al. 2019

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Biogenic and Abiogenic Fe-Ni-Sulfide Nanoparticles Fe-S phases is primarily determined by the precipitation kinetics, and our experiments at [Ni] aq /[Fe] aq = 1:1 suggest that Ni-sulfide precipitation kinetics is comparable or higher than Fe-sulfides at this condition. Overall, our study allows for prediction on the phases and biogeochemical factors controlling Ni removal and availability in sulfidic environments.

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Sulfate-reducing bacteria influence the nucleation and growth of mackinawite and greigite

Cited by 117 publications

References 92 publications

Microbe‐Mediated Extracellular and Intracellular Mineralization: Environmental, Industrial, and Biotechnological Applications

Microbe‐Mediated Extracellular and Intracellular Mineralization: Environmental, Industrial, and Biotechnological Applications

Pyrite formation from FeS and H₂S is mediated by a novel type of microbial energy metabolism

Nanoparticulate Nickel-Hosting Phases in Sulfidic Environments: Effects of Ferrous Iron and Bacterial Presence on Mineral Formation Mechanism and Solid-Phase Nickel Distribution

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Sulfate-reducing bacteria influence the nucleation and growth of mackinawite and greigite

Cited by 117 publications

References 92 publications

Microbe‐Mediated Extracellular and Intracellular Mineralization: Environmental, Industrial, and Biotechnological Applications

Microbe‐Mediated Extracellular and Intracellular Mineralization: Environmental, Industrial, and Biotechnological Applications

Pyrite formation from FeS and H2S is mediated by a novel type of microbial energy metabolism

Nanoparticulate Nickel-Hosting Phases in Sulfidic Environments: Effects of Ferrous Iron and Bacterial Presence on Mineral Formation Mechanism and Solid-Phase Nickel Distribution

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Pyrite formation from FeS and H₂S is mediated by a novel type of microbial energy metabolism