Effect of the heterotrophic bacterium Pseudomonas reactans on olivine dissolution kinetics and implications for CO2 storage in basalts

Shirokova, Liudmila S.; Bénézeth, Pascale; Pokrovsky, Oleg S.; Gérard, Emmanuelle; Ménez, Bénédicte; Alfreðsson, Helgi A.

doi:10.1016/j.gca.2011.11.046

Cited by 56 publications

(26 citation statements)

References 101 publications

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“…Because of the great variety, wide distribution and very active metabolisms of these organisms, microorganism-induced weathering of minerals and rocks has attracted a great deal of attention (Jacobson and Wu 2009;Lepleux et al 2012;Luttge and Conrad 2004;Shirokova et al 2012;Stockmann et al 2012;Uroz et al 2007). CA genes are present in almost all organisms (Venta et al 1983), so the study of the function of CA on mineral weathering appears to be very important.…”

Section: Introductionmentioning

confidence: 99%

The Up-regulation of Carbonic Anhydrase Genes ofBacillus mucilaginosusunder Soluble Ca²⁺Deficiency and the Heterologously Expressed Enzyme Promotes Calcite Dissolution

Xiao

Hao

Wang

et al. 2014

Geomicrobiology Journal

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Molecular mechanisms and gene regulation are of interest in the area of geomicrobiology in which the interaction between microbes and minerals is studied. This paper focuses on the regulation of the expression of carbonic anhydrase (CA) genes in Bacillus mucilaginosus and the effects of the expression product of the B. mucilaginosus CA gene in Escherichia coli on calcite weathering. Real-time fluorescent quantitative PCR (RT-qPCR) was used to explore the relationship between CA gene expression in B. mucilaginosus and promotion of calcite dissolution under condition of Ca 2C deficiency. The results showed that adding calcite to the medium, which lacks Ca 2C , can up-regulate the expression of the bacterial CA genes to accelerate calcite dissolution for bacterial growth. CA genes from B. mucilaginosus were transferred into E. coli by cloning. We then employed crude enzyme extract from the resultant E. coli strain in calcite dissolution experiments. The enzyme extract promoted calcite dissolution. These findings provide direct evidence for the role of microbial CA on mineral weathering and mineral nutrition release.

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Section: Introductionmentioning

confidence: 99%

The Up-regulation of Carbonic Anhydrase Genes ofBacillus mucilaginosusunder Soluble Ca²⁺Deficiency and the Heterologously Expressed Enzyme Promotes Calcite Dissolution

Xiao

Hao

Wang

et al. 2014

Geomicrobiology Journal

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“…ilicate weathering in terrestrial ecosystems plays an important role in the formation of soil and soil nutrients, in neutralization of acid rain, and in the long-term drawdown of atmospheric CO 2 (1)(2)(3)(4)(5). Many studies indicate that bacteria can significantly affect mineral dissolution by producing acids and metal-complexing ligands, changing redox conditions, or mediating the formation of secondary mineral phases (6)(7)(8)(9)(10).…”

mentioning

confidence: 99%

Distinct Mineral Weathering Behaviors of the Novel Mineral-Weathering Strains Rhizobium yantingense H66 and Rhizobium etli CFN42

Chen

Luo

et al. 2016

Appl Environ Microbiol

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Bacteria play important roles in mineral weathering, soil formation, and element cycling. However, little is known about the interaction between silicate minerals and rhizobia. In this study, Rhizobium yantingense H66 (a novel mineral-weathering rhizobium) and Rhizobium etli CFN42 were compared with respect to potash feldspar weathering, mineral surface adsorption, and metabolic activity during the mineral weathering process. Strain H66 showed significantly higher Si, Al, and K mobilization from the mineral and higher ratios of cell numbers on the mineral surface to total cell numbers than strain CFN42. Although the two strains produced gluconic acid, strain H66 also produced acetic, malic, and succinic acids during mineral weathering in lowand high-glucose media. Notably, higher Si, Al, and K releases, higher ratios of cell numbers on the mineral surface to total cell numbers, and a higher production of organic acids by strain H66 were observed in the low-glucose medium than in the highglucose medium. Scanning electron microscope analyses of the mineral surfaces and redundancy analysis showed stronger positive correlations between the mineral surface cell adsorption and mineral weathering, indicated by the dissolved Al and K concentrations. The results showed that the two rhizobia behaved differently with respect to mineral weathering. The results suggested that Rhizobium yantingense H66 promoted potash feldspar weathering through increased adsorption of cells to the mineral surface and through differences in glucose metabolism at low and high nutrient concentrations, especially at low nutrient concentrations. IMPORTANCEThis study reported the potash feldspar weathering, the cell adsorption capacity of the mineral surfaces, and the metabolic differences between the novel mineral-weathering Rhizobium yantingense H66 and Rhizobium etli CFN42 under different nutritional conditions. The results showed that Rhizobium yantingense H66 had a greater ability to weather the mineral in low-and high-glucose media, especially in the low-glucose medium. Furthermore, Rhizobium yantingense H66 promoted mineral weathering through the increased adsorption of cells to the mineral surface and through increased organic acid production. Our results allow us to better comprehend the roles of different rhizobia in silicate mineral weathering, element cycling, and soil formation in various soil environments, providing more insight into the geomicrobial contributions of rhizobia to these processes. Silicate weathering in terrestrial ecosystems plays an important role in the formation of soil and soil nutrients, in neutralization of acid rain, and in the long-term drawdown of atmospheric CO 2 (1-5). Many studies indicate that bacteria can significantly affect mineral dissolution by producing acids and metal-complexing ligands, changing redox conditions, or mediating the formation of secondary mineral phases (6-10). Furthermore, bacterial adhesion to minerals plays an important role in governing bacterial activities and mineral we...

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“…However, via selecting identical experimental conditions for live, dead, bacteria-free and soil-free experiments, one can evaluate the relative role of microbial activity on major and trace element release from soil particles. From recent kinetics studies of Ca-and Mg-bearing soil minerals in the presence of live bacteria, bacterial exo-metabolites and components of cell envelopes, the following conclusions can be made: i) concentrations of 1-10 g/L are necessary to appreciably modify the rates, and ii) the effect of live bacteria on the dissolution of basic silicates is virtually absent as a result of the weak impact of bacteria on Si-O-Ca(Mg) bonds Shirokova et al, 2012;Stockmann et al, 2012). Live bacteria are only likely to impact the dissolution rate of aluminosilicates via complexation of Al 3+ that has been released into solution, thereby decreasing the concentration of the main rate inhibitor (see Oelkers et al, 1994 andPokrovsky et al, 2010 for discussion).…”

Section: Application To Natural Environmentsmentioning

confidence: 99%

“…The present work aims to quantitatively assess the effects of microbial activity on the leaching of elements from contrasting soil horizons in aqueous solution. Several studies have attempted to quantify the effects of bacteria on rock dissolution (Fein et al, 1999;Wu et al, 2007Wu et al, , 2008 as well as on primary soil minerals (Lee and Fein, 2000;Pokrovsky et al, 2009;Shirokova et al, 2012;Stockmann et al, 2012). However, due to the complexities of whole soil systems, assessing the elementary mechanisms that control the release of elements in mineral-bacteria systems remain a challenge.…”

Section: Introductionmentioning

confidence: 99%

Impact of heterotrophic bacterium Pseudomonas aureofaciens on the release of major and trace elements from podzol soil into aqueous solution

et al. 2015

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Effect of the heterotrophic bacterium Pseudomonas reactans on olivine dissolution kinetics and implications for CO2 storage in basalts

Cited by 56 publications

References 101 publications

The Up-regulation of Carbonic Anhydrase Genes ofBacillus mucilaginosusunder Soluble Ca²⁺Deficiency and the Heterologously Expressed Enzyme Promotes Calcite Dissolution

The Up-regulation of Carbonic Anhydrase Genes ofBacillus mucilaginosusunder Soluble Ca²⁺Deficiency and the Heterologously Expressed Enzyme Promotes Calcite Dissolution

Distinct Mineral Weathering Behaviors of the Novel Mineral-Weathering Strains Rhizobium yantingense H66 and Rhizobium etli CFN42

Impact of heterotrophic bacterium Pseudomonas aureofaciens on the release of major and trace elements from podzol soil into aqueous solution

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Effect of the heterotrophic bacterium Pseudomonas reactans on olivine dissolution kinetics and implications for CO2 storage in basalts

Cited by 56 publications

References 101 publications

The Up-regulation of Carbonic Anhydrase Genes ofBacillus mucilaginosusunder Soluble Ca2+Deficiency and the Heterologously Expressed Enzyme Promotes Calcite Dissolution

The Up-regulation of Carbonic Anhydrase Genes ofBacillus mucilaginosusunder Soluble Ca2+Deficiency and the Heterologously Expressed Enzyme Promotes Calcite Dissolution

Distinct Mineral Weathering Behaviors of the Novel Mineral-Weathering Strains Rhizobium yantingense H66 and Rhizobium etli CFN42

Impact of heterotrophic bacterium Pseudomonas aureofaciens on the release of major and trace elements from podzol soil into aqueous solution

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The Up-regulation of Carbonic Anhydrase Genes ofBacillus mucilaginosusunder Soluble Ca²⁺Deficiency and the Heterologously Expressed Enzyme Promotes Calcite Dissolution

The Up-regulation of Carbonic Anhydrase Genes ofBacillus mucilaginosusunder Soluble Ca²⁺Deficiency and the Heterologously Expressed Enzyme Promotes Calcite Dissolution