Experimental and geochemical simulation of nickel carbonate mineral precipitation by carbonate-laden ureolytic fungal culture supernatants

Li, Qianwei; Liu, Daoqing; Chen, Chunmao; Shao, Zhihong; Wang, Huazhen; Liu, Jicheng; Zhang, Qiangbin; Gadd, Geoffrey Michael

doi:10.1039/c9en00385a

Cited by 22 publications

(24 citation statements)

References 56 publications

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“…Some metals can be intracellularly accumulated by active transport or diffusion through the cell membrane, and localized within vacuolar or other organellar compartments and/or be sequestered by sulfide, metal-binding proteins/peptides, and other macromolecules , 4-mM K + , 0.8-mM Mg 2+ , 1.7-mM Na + , 0.2-mM Ca 2+ , 0.02-mM Mn 2+ , and 9-μm Fe 3+ . The letter a on the y-axis represents the effective concentration of a given chemical species in the mixture (Li et al, unpublished data) in urea-containing medium hydrolyze urea producing ammonia and free carbonate which results in the precipitation of metals as carbonates, e.g., BaCO 3 , CdCO 3 , CoCO 3 , Cu 2 (OH) 2 CO 3 , La 2 (CO 3 ) 3 , and NiCO 3 (Li and Gadd 2017b;Li et al 2019;Liang and Gadd 2017;Liu et al 2019;Rautaray et al 2004). Fungi can produce a variety of metal oxalates on interacting with metals and metal-bearing minerals including those of Ca, Cd, Co, Cu, Mg, Mn, Sr, Zn, Ni, and Pb (Gadd et al 2014).…”

Section: Soil Characteristicsmentioning

confidence: 99%

“…Filamentous fungi, e.g., Aspergillus and Penicillium spp., have been investigated for the degradation of aliphatic hydrocarbons, chlorophenols, and polycyclic aromatic hydrocarbons, with the organic pollutants serving as carbon and energy sources (Harms et al 2011 ; Hofrichter et al 1994 ; Pinedo-Rivilla et al 2009 ) (Table 1 ). The ability of ureolytic fungi, such as Neurospora crassa , to immobilize metals has been investigated because, when incubated in urea-supplemented media, toxic metals are precipitated as carbonates and/or oxides (Li et al 2015 ; Li and Gadd 2017a ; Li and Gadd 2017b ; Li et al 2019 ; Li et al 2016 ; Li et al 2014 ). When grown in urea-containing media supplemented with heavy oil and Ca 2+ , such mineral precipitation tended to aggregate along the edge of the heavy oil which may provide an additional carbon or energy source during the biomineralization process (Fig.…”

Section: Fungi In Soil Co-contaminated With Petroleum Hydrocarbons Anmentioning

confidence: 99%

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Fungal bioremediation of soil co-contaminated with petroleum hydrocarbons and toxic metals

Liu

Gadd

2020

Appl Microbiol Biotechnol

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Much research has been carried out on the bacterial bioremediation of soil contaminated with petroleum hydrocarbons and toxic metals but much less is known about the potential of fungi in sites that are co-contaminated with both classes of pollutants. This article documents the roles of fungi in soil polluted with both petroleum hydrocarbons and toxic metals as well as the mechanisms involved in the biotransformation of such substances. Soil characteristics (e.g., structural components, pH, and temperature) and intracellular or excreted extracellular enzymes and metabolites are crucial factors which affect the efficiency of combined pollutant transformations. At present, bioremediation of soil co-contaminated with petroleum hydrocarbons and toxic metals is mostly focused on the removal, detoxification, or degradation efficiency of single or composite pollutants of each type. Little research has been carried out on the metabolism of fungi in response to complex pollutant stress. To overcome current bottlenecks in understanding fungal bioremediation, the potential of new approaches, e.g., gradient diffusion film technology (DGT) and metabolomics, is also discussed. Key points • Fungi play important roles in soil co-contaminated with TPH and toxic metals. • Soil characteristics, enzymes, and metabolites are major factors in bioremediation. • DGT and metabolomics can be applied to overcome current bottlenecks.

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Section: Soil Characteristicsmentioning

confidence: 99%

Section: Fungi In Soil Co-contaminated With Petroleum Hydrocarbons Anmentioning

confidence: 99%

Fungal bioremediation of soil co-contaminated with petroleum hydrocarbons and toxic metals

Liu

Gadd

2020

Appl Microbiol Biotechnol

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“…Calcium recovery of more than 90% was achieved from a calcium-rich industrial wastewater using bacterial MICP (Hammes et al 2003). Supernatants obtained from ureolytic fungi are also very efficient in forming copper and other metal carbonate nanoparticles for biorecovery (Li et al , 2015(Li et al , 2019Li and Gadd, 2017a, b;Liu et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Biorecovery of cobalt and nickel using biomass-free culture supernatants from Aspergillus niger

Yang

Song

Ferrier

et al. 2019

Appl Microbiol Biotechnol

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In this research, the capabilities of culture supernatants generated by the oxalate-producing fungus Aspergillus niger for the bioprecipitation and biorecovery of cobalt and nickel were investigated, as was the influence of extracellular polymeric substances (EPS) on these processes. The removal of cobalt from solution was >90% for all tested Co concentrations: maximal nickel recovery was >80%. Energy-dispersive X-ray analysis (EDXA) and X-ray diffraction (XRD) confirmed the formation of cobalt and nickel oxalate. In a mixture of cobalt and nickel, cobalt oxalate appeared to predominate precipitation and was dependent on the mixture ratios of the two metals. The presence of EPS together with oxalate in solution decreased the recovery of nickel but did not influence the recovery of cobalt. Concentrations of extracellular protein showed a significant decrease after precipitation while no significant difference was found for extracellular polysaccharide concentrations before and after oxalate precipitation. These results showed that extracellular protein rather than extracellular polysaccharide played a more important role in influencing the biorecovery of metal oxalates from solution. Excitation-emission matrix (EEM) fluorescence spectroscopy showed that aromatic protein-like and hydrophobic acid-like substances from the EPS complexed with cobalt but did not for nickel. The humic acid-like substances from the EPS showed a higher affinity for cobalt than for nickel.

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“…Geochemical simulation is a useful method to investigate the transformation mechanisms for minerals and has been widely applied to different scenarios regarding fungal-mineral interactions (Ceci et al, 2015b;Li et al, 2019). Since the monazite contained a larger amount of Ce than La, our modelling systems were based on the solubility product of Ce-oxalate, which was measured under laboratory conditions.…”

Section: Discussionmentioning

confidence: 99%

Monazite transformation into Ce‐ and La‐containing oxalates by Aspergillus niger

Kang

Csetényi

Gadd

2020

Environmental Microbiology

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Summary Monazite is a naturally occurring lanthanide (Ln) phosphate mineral [Ln x(PO4) y] and is the main industrial source of the rare earth elements (REE), cerium and lanthanum. Endeavours to ensure the security of supply of elements critical to modern technologies view bioprocessing as a promising alternative or adjunct to new methods of element recovery. However, relatively little is known about microbial interactions with REE. Fungi are important geoactive agents in the terrestrial environment and well known for properties of mineral transformations, particularly phosphate solubilization. Accordingly, this research examined the capability of a ubiquitous geoactive soil fungus, Aspergillus niger, to affect the mobility of REE in monazite and identify possible mechanisms for biorecovery. It was found that A. niger could grow in the presence of monazite and mediated the formation of secondary Ce and La‐containing biominerals with distinct morphologies including thin sheets, orthorhombic tablets, acicular needles, and rosette aggregates which were identified as cerium oxalate decahydrate (Ce2(C2O4)3·10H2O) and lanthanum oxalate decahydrate (La2(C2O4)3·10H2O). In order to identify a means for biorecovery of REE via oxalate precipitation the bioleaching and bioprecipitation potential of biomass‐free spent culture supernatants was investigated. Although such indirect bioleaching of REE was low from the monazite with maximal lanthanide release reaching >40 mg L−1, leached REE were efficiently precipitated as Ce and La oxalates of high purity, and did not contain Nd, Pr and Ba, present in the original monazite. Geochemical modelling of the speciation of oxalates and phosphates in the reaction system confirmed that pure Ln oxalates can be formed under a wide range of chemical conditions. These findings provide fundamental knowledge about the interactions with and biotransformation of REE present in a natural mineral resource and indicate the potential of oxalate bioprecipitation as a means for efficient biorecovery of REE from solution.

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Experimental and geochemical simulation of nickel carbonate mineral precipitation by carbonate-laden ureolytic fungal culture supernatants

Abstract: In the biomineralization of NiCO3, the secondary structure of extracellular proteins changed from α-helices to β structures.

Cited by 22 publications

References 56 publications

Fungal bioremediation of soil co-contaminated with petroleum hydrocarbons and toxic metals

Fungal bioremediation of soil co-contaminated with petroleum hydrocarbons and toxic metals

Biorecovery of cobalt and nickel using biomass-free culture supernatants from Aspergillus niger

Monazite transformation into Ce‐ and La‐containing oxalates by Aspergillus niger

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