Cyanobacteria as Biocatalysts for Carbonate Mineralization

Kamennaya, Nina A.; Ajo‐Franklin, Caroline M.; Northen, Trent; Jansson, Christer

doi:10.3390/min2040338

Cited by 145 publications

(102 citation statements)

References 162 publications

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“…If a suitable habitat and favorable geochemical conditions were provided, microbial carbonate precipitation could operate in a TSF for the purpose of carbon sequestration. Relevant reviews of microbially induced carbonate precipitation are provided by Riding [102], Dupraz et al [101], Jansson and Northen [103], and Kamennaya et al [104].…”

Section: Bioreactors For Carbon Mineralizationmentioning

confidence: 99%

Strategizing Carbon-Neutral Mines: A Case for Pilot Projects

et al. 2014

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Ultramafic and mafic mine tailings are a valuable feedstock for carbon mineralization that should be used to offset carbon emissions generated by the mining industry. Although passive carbonation is occurring at the abandoned Clinton Creek asbestos mine, and the active Diavik diamond and Mount Keith nickel mines, there remains untapped potential for sequestering CO 2 within these mine wastes. There is the potential to accelerate carbonation to create economically viable, large-scale CO 2 fixation technologies that can operate at near-surface temperature and atmospheric pressure. We review several relevant acceleration strategies including: bioleaching of magnesium silicates; increasing the supply of CO 2 via heterotrophic oxidation of waste organics; and biologically induced carbonate precipitation, as well as enhancing passive carbonation through tailings management practices and use of CO 2 point sources. Scenarios for pilot scale projects are proposed with the aim of moving towards carbon-neutral mines. A financial incentive is necessary to encourage the development of these strategies. We recommend the use of a dynamic real options pricing approach, instead of traditional discounted cash-flow approaches, because it reflects the inherent value in managerial OPEN ACCESS Minerals 2014, 4 400 flexibility to adapt and capitalize on favorable future opportunities in the highly volatile carbon market.

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Section: Bioreactors For Carbon Mineralizationmentioning

confidence: 99%

Strategizing Carbon-Neutral Mines: A Case for Pilot Projects

et al. 2014

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“…Therefore, they have been considered as major contributors to the formation of carbonates rocks such as stromatolites, which are found abundantly in the geological record up to~3.5 Ga ago [10] and whitings, which are ephemeral square kilometer-sized milk-white patches in lakes or shallow tropical seas [11]. Finally, it has been suggested repeatedly that cyanobacterial calcification might be used for carbon capture and sequestration [12,13].…”

Section: Introductionmentioning

confidence: 99%

Biomineralization Patterns of Intracellular Carbonatogenesis in Cyanobacteria: Molecular Hypotheses

Margaret-Oliver

Cam

et al. 2016

Minerals

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Abstract:The recent discovery of intracellular carbonatogenesis in several cyanobacteria species has challenged the traditional view that this process was extracellular and not controlled. However, a detailed analysis of the size distribution, chemical composition and 3-D-arrangement of carbonates in these cyanobacteria is lacking. Here, we characterized these features in Candidatus Gloeomargarita lithophora C7 and Candidatus Synechococcus calcipolaris G9 by conventional transmission electron microscopy, tomography, ultramicrotomy, and scanning transmission X-ray microscopy (STXM). Both Ca. G. lithophora C7 and Ca. S. calcipolaris G9 formed numerous polyphosphate granules adjacent or engulfing Ca-carbonate inclusions when grown in phosphate-rich solutions. Ca-carbonates were scattered within Ca. G. lithophora C7 cells under these conditions, but sometimes arranged in one or several chains. In contrast, Ca-carbonates formed at cell septa in Ca. S. calcipolaris G9 and were segregated equally between daughter cells after cell division, arranging as distorted disks at cell poles. The size distribution of carbonates evolved from a positively to a negatively skewed distribution as particles grew. Conventional ultramicrotomy did not preserve Ca-carbonates explaining partly why intracellular calcification has been overlooked in the past. All these new observations allow discussing with unprecedented insight some nucleation and growth processes occurring in intracellularly calcifying cyanobacteria with a particular emphasis on the possible involvement of intracellular compartments and cytoskeleton.

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“…Cyanobacterial trichomes may produce large amounts of exopolymer substances (EPS) generating exopolymer sheaths [25] with structural roles [26]. The microenvironments created by the polymeric sheaths can support certain mineral transformations [27]. Mineral precipitates, identified as CaCO 3 , are common to different cyanobacteria-based systems [26].…”

Section: Introductionmentioning

confidence: 99%

Cyanobacterial Contribution to Travertine Deposition in the Hoyoux River System, Belgium

et al. 2017

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Travertine deposition is a landscape-forming process, usually building a series of calcareous barriers differentiating the river flow into a series of cascades and ponds. The process of carbonate precipitation is a complex relationship between biogenic and abiotic causative agents, involving adapted microbial assemblages but also requiring high levels of carbonate saturation, spontaneous degassing of carbon dioxide and slightly alkaline pH. We have analysed calcareous crusts and water chemistry from four sampling sites along the Hoyoux River and its Triffoy tributary (Belgium) in winter, spring, summer and autumn 2014. Different surface textures of travertine deposits correlated with particular microenvironments and were influenced by the local water flow. In all microenvironments, we have identified the cyanobacterium Phormidium incrustatum (Nägeli) Gomont as the organism primarily responsible for carbonate precipitation and travertine fabric by combining morphological analysis with molecular sequencing (16S rRNA gene and ITS, the Internal Transcribed Spacer fragments), targeting both field populations and cultures to exclude opportunistic microorganisms responding favourably to culture conditions. Several closely related cyanobacterial strains were cultured; however, only one proved identical with the sequences obtained from the field population by direct PCR. This strain was the dominant primary producer in the calcareous deposits under study and in similar streams in Europe. The dominance of one organism that had a demonstrated association with carbonate precipitation presented a valuable opportunity to study its function in construction, preservation and fossilisation potential of ambient temperature travertine deposits. These relationships were examined using scanning electron microscopy and Raman microspectroscopy.Electronic supplementary material The online version of this article

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Cyanobacteria as Biocatalysts for Carbonate Mineralization

Cited by 145 publications

References 162 publications

Strategizing Carbon-Neutral Mines: A Case for Pilot Projects

Strategizing Carbon-Neutral Mines: A Case for Pilot Projects

Biomineralization Patterns of Intracellular Carbonatogenesis in Cyanobacteria: Molecular Hypotheses

Cyanobacterial Contribution to Travertine Deposition in the Hoyoux River System, Belgium

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