Effects of freshwater Synechococcus sp. cyanobacteria pH buffering on CaCO 3 precipitation: Implications for CO 2 sequestration

Martinez, Raul E.; Weber, Sebastian; Grimm, Christian

doi:10.1016/j.apgeochem.2016.10.017

Cited by 14 publications

(14 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The growth of a microbialite, incorporating geochemical as well as biologically induced (or influenced) precipitation, requires a continual influx of ambient water into the microenvironment to provide adequate ions for mineral growth (Webb and Kamber, 2011 ). The surface crypts allow the formation of micro-niches (with different oxygen, light and nutrient availability) favorable for the settlement and development of average size bacteria (~2 μm); it is in these micro-sites where diverse metabolic processes mediate or influence mineral precipitations (see physicochemical models in Riding, 1991 , 2000 ; Reid et al, 2000 ; Dupraz and Visscher, 2005 ; Dupraz et al, 2009 ; Martinez et al, 2016 ). Additionally, polymeric biogenic silica has been shown to act as a buffer for carbonic anhydrase in diatoms conducting the CO 2 system to carbonates in the surface of diatoms (Milligan and Morel, 2002 ).…”

Section: Discussionmentioning

confidence: 99%

Exploring Biogeochemistry and Microbial Diversity of Extant Microbialites in Mexico and Cuba

Valdespino-Castillo

Merino–Ibarra

et al. 2018

Front. Microbiol.

View full text Add to dashboard Cite

Microbialites are modern analogs of ancient microbial consortia that date as far back as the Archaean Eon. Microbialites have contributed to the geochemical history of our planet through their diverse metabolic capacities that mediate mineral precipitation. These mineral-forming microbial assemblages accumulate major ions, trace elements and biomass from their ambient aquatic environments; their role in the resulting chemical structure of these lithifications needs clarification. We studied the biogeochemistry and microbial structure of microbialites collected from diverse locations in Mexico and in a previously undescribed microbialite in Cuba. We examined their structure, chemistry and mineralogy at different scales using an array of nested methods including 16S rRNA gene high-throughput sequencing, elemental analysis, X-Ray fluorescence (XRF), X-Ray diffraction (XRD), Scanning Electron Microscopy-Energy Dispersive Spectroscopy (SEM-EDS), Fourier Transformed Infrared (FTIR) spectroscopy and Synchrotron Radiation-based Fourier Transformed Infrared (SR-FTIR) spectromicroscopy. The resulting data revealed high biological and chemical diversity among microbialites and specific microbe to chemical correlations. Regardless of the sampling site, Proteobacteria had the most significant correlations with biogeochemical parameters such as organic carbon (Corg), nitrogen and Corg:Ca ratio. Biogeochemically relevant bacterial groups (dominant phototrophs and heterotrophs) showed significant correlations with major ion composition, mineral type and transition element content, such as cadmium, cobalt, chromium, copper and nickel. Microbial-chemical relationships were discussed in reference to microbialite formation, microbial metabolic capacities and the role of transition elements as enzyme cofactors. This paper provides an analytical baseline to drive our understanding of the links between microbial diversity with the chemistry of their lithified precipitations.

show abstract

Section: Discussionmentioning

confidence: 99%

Exploring Biogeochemistry and Microbial Diversity of Extant Microbialites in Mexico and Cuba

Valdespino-Castillo

Merino–Ibarra

et al. 2018

Front. Microbiol.

View full text Add to dashboard Cite

show abstract

“…Carbon storage methods, or carbon concentration mechanisms (CCM), need to be developed urgently in order to reduce the CO2 impact on Earth's terrestrial and aquatic environments. The ability of cyanobacteria to induce the biomineralization of CO2 is an option which is still in its infancy and could possibly be used in the near-future to decrease atmospheric CO2 levels (Martinez et al, 2016). Previous studies have proven the link between cyanobacteria photosynthesis and the presence of metallic cations could lead to carbonate precipitation in the presence of atmospheric CO2 and under suitable solution conditions (Jansson and Northen, 2010;Martinez et al, 2016;Obst et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

“…Cyanobacteria are autophototrophic microorganisms. They are primary producers, which generate their own nutrients by carrying out the oxygenic photosynthesis (Martinez et al, 2016). This metabolism needs carbon as a source of inorganic carbon in the form of dissolved CO2, natural light as source of energy and water to provide electrons needed in the redox transformation of carbon (Schubert et al, 1997).…”

Section: Introductionmentioning

confidence: 99%

“…The presence of both metal cations (e.g. Ca 2+ /Mg 2+ ) and carbonate (CO3 2-) allows the nucleation of carbonates in the form of calcite (CaCO3) and magnesite (MgCO3) (Martinez et al, 2016;Riding, 2006). However, the amount of metal cations and carbonate must be high enough to reach supersaturation with respect to these carbonate minerals.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Does carbon dioxide storage by cyanobacteria induce biomineralization in presence of basaltic glass?

et al. 2021

Self Cite

View full text Add to dashboard Cite

“…Second, which part of intracellular pH regulation is achieved by the functioning of Ca 2+ /H + exchangers vs other H + transporters in calcifying cyanobacteria? Third, there is still some debate about the way cyanobacteria impact carbonatogenesis: do they induce carbonatogenesis through their metabolic activity as stressed on in the above lines [97,98], or do they influence it through inactive heterogeneous nucleation (e.g. biologically influenced mineralization, see above).…”

mentioning

confidence: 99%

The diversity of molecular mechanisms of carbonate biomineralization by bacteria

et al. 2020

View full text Add to dashboard Cite

Although biomineralization of CaCO3 is widespread in Bacteria and Archaea, the molecular mechanisms involved in this process remain less known than those used by Eukaryotes. A better understanding of these mechanisms is crucial for a broad diversity of studies including those (i) aiming at assessing the role of bacteria in the geochemical cycles of Ca and C, (ii) investigating the process of fossilization, and (iii) engineering applications using bacterially mediated CaCO3 mineralization. Different types of bacterially-mediated mineralization modes have been distinguished depending on whether they are influenced (by extracellular organic molecules), induced (by metabolic activity) or controlled (by specific genes). In the first two types, mineralization is usually extracellular, while it is intracellular for the two ascertained cases of controlled bacterial mineralization. In this review, we list a large number of cases illustrating the three different modes of bacterially-mediated CaCO3 mineralization. Overall, this shows the broad diversity of metabolic pathways, organic molecules and thereby microorganisms that can biomineralize CaCO3. Providing an improved understanding of the mechanisms involved and a good knowledge of the molecular drivers of carbonatogenesis, the increasing number of (meta)-omics studies may help in the future to estimate the significance of bacterially mediated CaCO3 mineralization.

show abstract

Effects of freshwater Synechococcus sp. cyanobacteria pH buffering on CaCO 3 precipitation: Implications for CO 2 sequestration

Cited by 14 publications

References 54 publications

Exploring Biogeochemistry and Microbial Diversity of Extant Microbialites in Mexico and Cuba

Exploring Biogeochemistry and Microbial Diversity of Extant Microbialites in Mexico and Cuba

Does carbon dioxide storage by cyanobacteria induce biomineralization in presence of basaltic glass?

The diversity of molecular mechanisms of carbonate biomineralization by bacteria

Contact Info

Product

Resources

About