Bacterial extracellular polymeric substances (EPS) mediate CaCO3 morphology and polymorphism

Tourney, Janette; Ngwenya, Bryne T.

doi:10.1016/j.chemgeo.2009.01.006

Cited by 130 publications

(98 citation statements)

References 49 publications

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“…The crystals more frequently obtained are calcite and vaterite (Dhami et al, 2013b;JimenezLopez et al, 2008), being the latter a meta-stable and transitional phase crystal during calcite formation (Tourney & Ngwenya, 2009), which is the most thermodynamically stable phase and the main MICP product (Okwadha & Li, 2010;Stocks-Fischer et al, 1999b).…”

Section: Calcium Carbonate Crystalsmentioning

confidence: 99%

Soil bacteria that precipitate calcium carbonate: mechanism and applications of the process

Acuña¹,

Becerra²,

Martínez³

et al. 2018

Acta Agron.

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Bacteria with ureasic activity are microorganisms found in soil that in presence of urea and calcium, they can produce calcium carbonate, a process known as microbiologically induced calcium carbonate precipitation (MICP). This article discusses this process and its mechanism, as well as bacterial urease, calcium carbonate crystals formed, and factors that affect the efficiency of MICP, as type of bacteria, bacterial cell concentrations, pH, temperature and calcium and urea concentrations. In addition, applications as removal of heavy metals in water, bioconsolidation, biocement and CO 2 sequestration are also discussed.Keywords: Biomineralization; Bacillus; urease; carbonates; heavy metals; bioconsolidation; biocementation. ResumenLas bacterias con actividad ureásica son microorganismos que se encuentran en el suelo, y que en presencia de urea y calcio, pueden producir carbonato de calcio, proceso conocido como precipitación de calcio inducida microbiológicamente (PCIM). Este artículo trata este proceso y su mecanismo, además de las ureasas de origen bacteriano, los cristales de carbonato de calcio formado, los factores que afectan la eficiencia la PCIM, como el tipo de bacteria, las concentraciones de células bacterianas, el pH, la temperatura y las concentraciones de calcio y urea. Además, se incluye las aplicaciones como la remoción de metales pesados en aguas, la bioconsolidación, biocemento y secuestro de CO 2 .

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Section: Calcium Carbonate Crystalsmentioning

confidence: 99%

Soil bacteria that precipitate calcium carbonate: mechanism and applications of the process

Acuña¹,

Becerra²,

Martínez³

et al. 2018

Acta Agron.

View full text Add to dashboard Cite

show abstract

“…However, Ercole et al (23) showed that EPS isolated from Bacillus firmus and Bacillus sphaericus induce the precipitation of calcite. Tourney and Ngwenya (85) indicated that dissolved organic carbon (DOC) released from EPS produced by Bacillus licheniformis complexes Ca ions, reducing the calcium carbonate saturation and favoring the precipitation of calcite over that of vaterite. Chen et al (11) suggested that differences in the composition of proteins secreted by B. subtilis, Aerobacter aerogenes, and Proteus mirabilis could explain differences in morphology and polymorphs (calcite versus vaterite) in carbonates produced by these bacteria.…”

mentioning

confidence: 99%

Influence of Substrate Mineralogy on Bacterial Mineralization of Calcium Carbonate: Implications for Stone Conservation

Rodríguez-Navarro

Jroundi

Schiro

et al. 2012

Appl Environ Microbiol

186

101

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ABSTRACTThe influence of mineral substrate composition and structure on bacterial calcium carbonate productivity and polymorph selection was studied. Bacterial calcium carbonate precipitation occurred on calcitic (Iceland spar single crystals, marble, and porous limestone) and silicate (glass coverslips, porous sintered glass, and quartz sandstone) substrates following culturing in liquid medium (M-3P) inoculated with different types of bacteria (Myxococcus xanthus,Brevundimonas diminuta, and a carbonatogenic bacterial community isolated from porous calcarenite stone in a historical building) and direct application of sterile M-3P medium to limestone and sandstone with their own bacterial communities. Field emission scanning electron microscopy (FESEM), atomic force microscopy (AFM), powder X-ray diffraction (XRD), and 2-dimensional XRD (2D-XRD) analyses revealed that abundant highly oriented calcite crystals formed homoepitaxially on the calcitic substrates, irrespective of the bacterial type. Conversely, scattered spheroidal vaterite entombing bacterial cells formed on the silicate substrates. These results show that carbonate phase selection is not strain specific and that under equal culture conditions, the substrate type is the overruling factor for calcium carbonate polymorph selection. Furthermore, carbonate productivity is strongly dependent on the mineralogy of the substrate. Calcitic substrates offer a higher affinity for bacterial attachment than silicate substrates, thereby fostering bacterial growth and metabolic activity, resulting in higher production of calcium carbonate cement. Bacterial calcite grows coherently over the calcitic substrate and is therefore more chemically and mechanically stable than metastable vaterite, which formed incoherently on the silicate substrates. The implications of these results for technological applications of bacterial carbonatogenesis, including building stone conservation, are discussed.

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“…Biomineralization is a universal process, occurring in both prokaryotes and eukaryotes, including mammals. Biomineralization research is also a diverse and multidisciplinary field, encompassing microscopic analyses of biominerals and tissues (21,23), mineralogy (25), organic chemistry (30), paleontology (3), and cellular biochemistry (19).…”

mentioning

confidence: 99%

Catalytic Biomineralization of Fluorescent Calcite by the Thermophilic Bacterium Geobacillus thermoglucosidasius

Yoshida

Higashimura

Saeki

2010

Appl Environ Microbiol

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Bacterial extracellular polymeric substances (EPS) mediate CaCO3 morphology and polymorphism

Cited by 130 publications

References 49 publications

Soil bacteria that precipitate calcium carbonate: mechanism and applications of the process

Soil bacteria that precipitate calcium carbonate: mechanism and applications of the process

Influence of Substrate Mineralogy on Bacterial Mineralization of Calcium Carbonate: Implications for Stone Conservation

Catalytic Biomineralization of Fluorescent Calcite by the Thermophilic Bacterium Geobacillus thermoglucosidasius

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