High salinity facilitates dolomite precipitation mediated by Haloferax volcanii DS52

Qiu, Xuan; Wang, Hongmei; Yao, Yanchen; Duan, Yonggang

doi:10.1016/j.epsl.2017.05.018

Cited by 85 publications

(104 citation statements)

References 44 publications

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“…This difference indicates that lattice defects and/or lattice distortion may have developed. The density of struvite induced by the ZW123 bacterium is 1.752 g/cm 3 , higher than that of chemical struvite (1.701 g/cm 3 ), suggesting that the biotic struvite has a denser crystal structure.…”

Section: Xrd Analyses and Rietveld Refinementmentioning

confidence: 86%

“…Many researchers have demonstrated that microorganisms, especially bacteria, can provide a favorable environment for the biomineralization of carbonate and phosphate minerals [3,4,21,28,32]. Carbonate and phosphate minerals are usually formed when supersaturation is reached in an alkaline environment [22,71].…”

Section: Physiological and Biochemical Parameters And The Favourable mentioning

confidence: 99%

“…For example, Deng et al [4] used halophilic bacteria as experimental strains to successfully induce the precipitation of dolomite, and their results showed that EPS could provide the nucleation sites for the dolomite. Besides, dolomite was also obtained with the participation of the halophilic bacterium Haloferax volcanii DS52 in the study of Qiu et al [3], and their results indicated that acidic amino acids (aspartic acid and glutamic acid) could promote the dehydration of the Mg 2+ ions in the presence of free carboxyl groups. Cyanobacteria have also been widely used as experimental strains to induce mineral precipitation.…”

Section: Introductionmentioning

confidence: 99%

“…Microorganisms, especially bacteria, as an important part of the Earth's biosphere, can facilitate many geochemical processes. Extensive research has been undertaken on the biomineralization processes of carbonate and phosphate minerals in the past decades, and the significant roles that microorganisms play in these processes have been widely reported [1][2][3][4][5][6][7][8][9][10][11]. Many species of microorganisms have been used to induce the precipitation of carbonate and phosphate minerals, including cyanobacteria, halophiles, methanogens and sulfate-reducing bacteria [8,[11][12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

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Bio-Precipitation of Carbonate and Phosphate Minerals Induced by the Bacterium Citrobacter freundii ZW123 in an Anaerobic Environment

Sun

Zhao

et al. 2020

Minerals

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In this study, a facultative anaerobic strain isolated from marine sediments and identified as Citrobacter freundii, was used to induce the precipitation of carbonate and phosphate minerals in the laboratory under anaerobic conditions. This is the first time that the ability of C. freundii ZW123 to precipitate carbonate and phosphate minerals has been demonstrated. During the experiments, carbonic anhydrase, alkaline phosphatase and ammonium released by the bacteria not only promoted an increase in pH, but also drove the supersaturation and precipitation of carbonate and phosphate minerals. The predominant bio-mediated minerals precipitated at various Mg/Ca molar ratios were calcite, vaterite, Mg-rich calcite, monohydrocalcite and struvite. A preferred orientation towards struvite was observed. Scanning transmission electron microscopy (STEM) and elemental mapping showed the distribution of magnesium and calcium elements within Mg-rich calcite. Many organic functional groups, including C=O, C–O–C and C–O, were detected within the biominerals, and these functional groups were also identified in the associated extracellular polymeric substances (EPS). Fifteen kinds of amino acid were detected in the biotic minerals, almost identical to those of the EPS, indicating a close relationship between EPS and biominerals. Most amino acids are negatively charged and able to adsorb cations, providing an oversaturated microenvironment to facilitate mineral nucleation. The X-ray photoelectron spectroscopy (XPS) spectrum of struvite shows the presence of organic functional groups on the mineral surface, suggesting a role of the microorganism in struvite precipitation. The ZW123 bacteria provided carbon and nitrogen for the formation of the biotic minerals through their metabolism, which further emphasizes the close relationship between biominerals and the microorganisms. Thermal studies showed the enhanced thermal stability of biotic minerals, perhaps due to the participation of the bacteria ZW123. The presence of amino acids such as Asp and Glu may explain the high magnesium content of some calcites. Molecular dynamics simulations demonstrated that the morphological change and preferred orientation were likely caused by selective adsorption of EPS onto the various struvite crystal surfaces. Thus, this study shows the significant role played by C. freundii ZW123 in the bioprecipitation of carbonate and phosphate minerals and provides some insights into the processes involved.

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Section: Xrd Analyses and Rietveld Refinementmentioning

confidence: 86%

Section: Physiological and Biochemical Parameters And The Favourable mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Bio-Precipitation of Carbonate and Phosphate Minerals Induced by the Bacterium Citrobacter freundii ZW123 in an Anaerobic Environment

Sun

Zhao

et al. 2020

Minerals

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“…The components of microbial cell walls can also be involved in Ca-Mg carbonates precipitation. For example, the archaeal protein S layers can also provide nucleation sites for the formation of disordered dolomite (Qiu et al 2017). Thus, in the environment where the microbial metabolic influence on the physicochemical conditions may be insignificant, EPS are considered to play the key role in the precipitation of Ca-Mg carbonates, including dolomite.…”

Section: Discussionmentioning

confidence: 99%

Characterization of modern dolomite stromatolites from hypersaline Petukhovskoe Soda Lake, Russia

Samylina

Zaytseva

2019

LET

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Microbialites occur in a number of modern soda lakes, but the formation of dolomite stromatolites in these environments is rare. Microbial metabolic activities are considered to influence precipitation of carbonate minerals (including dolomite) in marine, hypersaline and slightly alkaline environments due to their capacity to buffer pH of the local environmental settings. Hydrochemical features of hypersaline alkaline Petukhovskoe Soda Lake are already favourable for the precipitation of carbonate minerals, and the metabolic activities of microorganisms may not be significant in this type of environment. Stromatolites from this lake provide an excellent opportunity for the study of recent natural dolomite formation in the highly saturated soda environment. To understand the genesis of these stromatolites and to provide insight into environmental aspects of its formation, we have made a detailed structural and mineralogical description with the use of light and scanning electron microscopy, infrared spectroscopy and X‐ray analysis. Due to the special fluctuating conditions of sedimentation in the lake, stromatolites contain both layers with chemogenic precipitation of minerals and layers with fossilized algal, cyanobacterial and coccoid bacterial forms. The presence of dolomite, calcite and Mg calcites with different content of magnesium is detected. The primary independent binding of Mg and Si with the following binding of Ca in the pericellular and released exopolysaccharides is shown. Extracellular polymeric substances (EPS) and fluctuating hydrological regimen of the Petukhovskoe Soda Lake are considered to play the key role in the precipitation of Ca–Mg carbonates including dolomite.

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Effect of amino acids on biomineralization of lead ions by Aspergillus niger

Zhang,

Hao,

Shan

et al. 2023

Water Environment Research

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This study investigates the biomineralization of lead ions by Aspergillus niger from aqueous environments, focusing on the dynamic effects of fungal metabolism and biological components. Three biomolecules (glutamate, methionine, and lysine) were used to induce lead oxalate mineralization under lead stress. Comparative experiments were conducted to analyze the growth characteristics and Pb (II) removal ability of A. niger, as well as the morphological and structural properties of the resulting lead oxalate minerals using ICP‐MS, XRD and SEM‐EDS techniques. The findings reveal that A. niger plays a crucial role in controlling the mineralization process of Pb (II), with biomineralization experiments demonstrating the specific morphogenesis of lead oxalate over time. Additionally, the inclusion of the three biomolecules in the system indirectly influenced the rate of Pb (II) removal and mineral morphology. These results contribute to a better understanding of A. niger‐mediated biomineralization process of lead oxalate and suggest its potential application in the removal of Pb (II) from aqueous environments, particularly in combination with amino acids for enhanced immobilization and mineral recovery.

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High salinity facilitates dolomite precipitation mediated by Haloferax volcanii DS52

Cited by 85 publications

References 44 publications

Bio-Precipitation of Carbonate and Phosphate Minerals Induced by the Bacterium Citrobacter freundii ZW123 in an Anaerobic Environment

Bio-Precipitation of Carbonate and Phosphate Minerals Induced by the Bacterium Citrobacter freundii ZW123 in an Anaerobic Environment

Characterization of modern dolomite stromatolites from hypersaline Petukhovskoe Soda Lake, Russia

Effect of amino acids on biomineralization of lead ions by Aspergillus niger

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