Role of bacteria in marine barite precipitation: A case study using Mediterranean seawater

Torres-Crespo, N.; Martı́nez-Ruiz, Francisca; González‐Muñoz, María Teresa; Bedmar, Eulogio J.; Lange, Gert J. de; Jroundi, Fadwa

doi:10.1016/j.scitotenv.2015.01.044

Cited by 26 publications

(21 citation statements)

References 82 publications

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“…Previous work has shown the important role that biologically-mediated precipitation in complex microenvironments play in controlling sulfate precipitation, whereby the surfaces of microorganisms allow for heterogeneous nucleation and growth (Torres-Crespo et al, 2015;Widanagamage et al, 2015). Similar results have been observed in carbonate systems.…”

Section: Biologically Induced Celestine Precipitation and Micro-envirsupporting

confidence: 74%

“…Examples of biologically associated processes that induce barite mineralization include organic matter decomposition in marine settings (e.g., (Dehairs et al, 1980;Dymond et al, 1992)) with marine bacteria possibly providing appropriate microenvironments for barite precipitation (Torres-Crespo et al, 2015), sulfide oxidization by bacteria in sulfidic springs and cold seeps adding sulfate to barium-rich waters (Senko et al, 2004;Stevens et al, 2015), and barium accumulation in diatom extracellular polymeric substances within the continental interior (Bonny and Jones, 2007b). In low barite saturation state environments typical of most aqueous systems, the microenvironments created by microbial biomass or sediment surfaces appear to be essential for heterogeneous precipitation of barite (e.g., (Stevens et al, 2015;Torres-Crespo et al, 2015;Widanagamage et al, 2015). As such, microbiological activities can potentially play two roles in barite deposition: (1) give rise to barite supersaturated microenvironments in otherwise undersaturated fluids, and (2) produce sulfate in the absence of O2 (e.g., phototrophic sulfide oxidation) and/or at rates exceeding those of the abiotic oxidation of sulfide by O2 (e.g., chemolithotrophic sulfide oxidation).…”

Section: Introductionmentioning

confidence: 99%

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Celestine in a sulfidic spring barite deposit - A potential biomarker?

et al. 2016

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We have documented the presence of celestine (SrSO4) within sediment accumulating at an artesian sulfidic spring (Zodletone Spring, Oklahoma) dominated by barite (BaSO4) precipitation associated with microbiological activity. The distribution and speciation of Sr in solid phases was determined by synchrotron-based micro-X-ray fluorescence spectroscopy and micro-X-ray diffraction, and particle morphology and texture was determined using electron microscopy. In all the natural sulphidic spring samples and lithified tufa sample, celestine was detected in finegrained micron-scale Sr-rich phases but not in euhedral, Sr-poor grains. In parallel laboratorybased precipitation experiments, celestine was not observed even when solutions contained high Sr/Ba. Thermodynamic predictions alone do not account for the presence of micron-scale celestine in the sulfidic spring, and they do not account for the differences in Sr presence and distribution in naturally-occurring versus synthetic grains. While the mechanism is unclear, based on this evidence we hypothesize that the combination of bacterial surfaces and microenvironments within the crusts and microbial mats creates a synergistic effect where Sr is preferentially exchanged over Ba between the overlying stream water and the pore water within the mats allowing celestine to precipitate. Ultimately, our results point to an important role of biological activity for preferential Sr uptake. The presence of micron-scale celestine in ancient barite deposits can therefore potentially be used as a biomarker for conditions similar to modern sulphidic springs.

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Section: Biologically Induced Celestine Precipitation and Micro-envirsupporting

confidence: 74%

Section: Introductionmentioning

confidence: 99%

Celestine in a sulfidic spring barite deposit - A potential biomarker?

et al. 2016

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“…Indeed, in natural environments, Ba enrichment associated with microbial biomass has been described in diverse settings, including thermal springs 15 , 16 , 20 , biofilms in the Roman Catacombs 21 , bacterial EPS at fumaroles in Solfatara Crater, Italy 22 , and in filaments of sulfide-oxidizing bacteria in marine cold seep 17 . Likewise, culture experiments demonstrated the capability of bacteria to promote barite precipitation under laboratory conditions 10 , 11 , 23 . In such experiments, bacterial metabolism supplied the necessary sulfate for barite formation.…”

Section: Discussionmentioning

confidence: 97%

“…It has been suggested that bacteria may play a role, since observations in the ocean water column support a close relation between bacterial activity and particulate non-lithogenic Ba in the water column 7 – 9 . It has also been demonstrated that under experimental conditions diverse marine bacteria from different habitats and of phylogenetically diverse species can promote barite precipitation 10 , 11 . Seawater Ba isotopic composition likewise points to a biological role in barite precipitation.…”

Section: Introductionmentioning

confidence: 99%

Barium bioaccumulation by bacterial biofilms and implications for Ba cycling and use of Ba proxies

et al. 2018

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Ba proxies have been broadly used to reconstruct past oceanic export production. However, the precise mechanisms underlying barite precipitation in undersaturated seawater are not known. The link between bacterial production and particulate Ba in the ocean suggests that bacteria may play a role. Here we show that under experimental conditions marine bacterial biofilms, particularly extracellular polymeric substances (EPS), are capable of bioaccumulating Ba, providing adequate conditions for barite precipitation. An amorphous P-rich phase is formed at the initial stages of Ba bioaccumulation, which evolves into barite crystals. This supports that in high productivity regions where large amounts of organic matter are subjected to bacterial degradation, the abundant EPS would serve to bind the necessary Ba and form nucleation sites leading to barite precipitation. This also provides new insights into barite precipitation and opens an exciting field to explore the role of EPS in mineral precipitation in the ocean.

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“…The free CO 3 2− is more likely to react with the free Sr 2+ to form stable SrCO 3 precipitates. The results proved the role of Bacillus pasteurii in the process of SrCO 3 crystallization, [ 21–25 ] and it is still unclear whether the bacterial somatic or bacterial secretion affected the mineralization of SrCO 3 crystals.…”

Section: Resultsmentioning

confidence: 82%

Mineralization Mechanism of Mineralization Bacteria on Strontium Crystallization of Simulated Radionuclides

Tian

Zhang

et al. 2020

Crystal Research and Technology

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Microbial‐induced carbonate crystallization is a natural biological process in which microbes produce inorganic materials as part of their basic metabolic activities. Herein, the influence of the bacterial somatic solution and secretion solution on the crystal growth behavior of strontium carbonate (SrCO3) is studied. The mineralization mechanism of carbonate mineralizing bacteria on simulated radionuclides (Sr2+) is also demonstrated. The results reveal that the morphology of SrCO3 crystal formed by involvement of microbes is greatly different with chemical method, which means that microbes play a critical role during the SrCO3 crystallization process. Briefly, bacterial somatic provides nucleation sites for SrCO3 during both the nucleation and growth processes. In addition, bacterial secretions play a vital role in regulating the morphology of mineralized products. This work unveils the mineralization process of strontium nuclides, providing reference for the control of crystal morphologies and structural properties of the SrCO3.

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Role of bacteria in marine barite precipitation: A case study using Mediterranean seawater

Cited by 26 publications

References 82 publications

Celestine in a sulfidic spring barite deposit - A potential biomarker?

Celestine in a sulfidic spring barite deposit - A potential biomarker?

Barium bioaccumulation by bacterial biofilms and implications for Ba cycling and use of Ba proxies

Mineralization Mechanism of Mineralization Bacteria on Strontium Crystallization of Simulated Radionuclides

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