Combined bioreduction and volatilization of SeVI by Stenotrophomonas bentonitica: Formation of trigonal selenium nanorods and methylated species

Ruiz-Fresneda, Miguel Angel; Fernández-Cantos, María V.; Gómez-Bolívar, Jaime; Eswayah, Abdurrahman S.; Gardiner, Philip H. E.; Pinel-Cabello, María; Solari, Pier Lorenzo; Merroun, Mohamed L.

doi:10.1016/j.scitotenv.2022.160030

Cited by 12 publications

(8 citation statements)

References 54 publications

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“…In addition to the thioredoxin system and thiol-containing proteins such as glutathione, other mechanisms involved in the reduction of these two oxyanions in Bacillus mycoides SeITE01 have been investigated [ 68 ]. Also, [ 69 ] and [ 70 ] suggested that thiol-containing peptides play a critical role in biosynthesis and stabilization of nanoparticles in Stenotrophomonas bentonitica .…”

Section: Resultsmentioning

confidence: 99%

Simultaneous bioreduction of tellurite and selenite by Yarrowia lipolytica, Trichosporon cutaneum, and their co-culture along with characterization of biosynthesized Te–Se nanoparticles

Hosseini,

Hadian,

Lashani

et al. 2023

Microb Cell Fact

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Background Natural and anthropogenic activities, such as weathering of rocks and industrial processes, result in the release of toxic oxyanions such as selenium (Se) and tellurium (Te) into the environment. Due to the high toxicity of these compounds, their removal from the environment is vital. Results In this study, two yeast strains, Yarrowia lipolytica and Trichosporon cutaneum, were selected as the superior strains for the bioremediation of tellurium and selenium. The reduction analyses showed that exposure to selenite induced more detrimental effects on the strains compared to tellurite. In addition, co-reduction of pollutants displayed almost the same results in selenite reduction and more than ~ 20% higher tellurite reduction in 50 h, which shows that selenite triggered higher tellurite reduction in both strains. The selenite and tellurite kinetics of removal were consistent with the first-order model because of their inhibitory behavior. The result of several characterization experiments, such as FE-SEM (Field emission scanning electron microscopy), dynamic light scattering (DLS), Fourier-transform infrared spectroscopy (FTIR), X-ray diffractometer (XRD), and dispersive X-ray (EDX) on Te–Se nanoparticles (NPs) revealed that the separated Te–Se NPs were needle-like, spherical, and amorphous, consisted of Te–Se NPs ranging from 25 to 171 nm in size, and their surface was covered with different biomolecules. Conclusions Remarkably, this work shows, for the first time, the simultaneous bioreduction of tellurite and selenite and the production of Te–Se NPs using yeast strains, indicating their potential in this area, which may be applied to the nanotechnology industry and environmental remediation. Graphical Abstract

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Section: Resultsmentioning

confidence: 99%

Simultaneous bioreduction of tellurite and selenite by Yarrowia lipolytica, Trichosporon cutaneum, and their co-culture along with characterization of biosynthesized Te–Se nanoparticles

Hosseini,

Hadian,

Lashani

et al. 2023

Microb Cell Fact

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“…There are many which are capable of transforming different species of Se by means of reduction-oxidation (redox) reactions, methylation, and demethylation processes (Eswayah et al, 2016). The microbial reduction of oxidized and soluble forms of Se (Se VI and Se IV ) to insoluble Se 0 has been previously described by bacteria of the genera Bacillus, Shewanella, Comamonas, Stenotrophomonas, Azospirillum, and Pseudomonas, among others (Figure 5; Kora, 2018;Vogel et al, 2018;Baggio et al, 2021;Staicu et al, 2022;Ruiz-Fresneda et al, 2023). Currently, the number of known Se VI reducing strains is lower than that of Se IV reducing ones.…”

Section: Microbial Interactions With Seleniummentioning

confidence: 92%

“…Microorganisms are known for their capacity to do so, largely due to their high tolerance to toxic elements and other stressful conditions including radiation, desiccation, and the presence of oxidative agents ( Brim et al, 2000 ). A wide variety of bacteria have been previously described to efficiently resist toxic elements such as uranium, nickel, copper, cadmium, selenium, cesium, strontium, etc., including those belonging to the genera Bacillus, Pseudomonas, or Stenotrophomonas ( Fakhar et al, 2022 ; Ruiz-Fresneda et al, 2023 ).…”

Section: Diversity and Influence Of Microorganisms In Dgr Systemsmentioning

confidence: 99%

“…On the basis of all the comments mentioned above, it is clear that indigenous microorganisms from natural and engineered barriers in a DGR or are introduced during the disposal construction and could play a direct effect on radionuclide mobilization. For example, the bacterial species S. bentonitica , isolated from bentonite clay, has been recently described to efficiently reduce Se VI and Se IV to Se 0 nanostructures and methylated Se ( Pinel-Cabello et al, 2021a ; Ruiz-Fresneda et al, 2023 ). The physico-chemical characterization of these Se reduction products suggests that this bacterium plays an important role in Se immobilization in the context of DGRs.…”

Section: Interaction Mechanisms Between Microorganisms and Relevant R...mentioning

confidence: 99%

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Impact of microbial processes on the safety of deep geological repositories for radioactive waste

et al. 2023

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To date, the increasing production of radioactive waste due to the extensive use of nuclear power is becoming a global environmental concern for society. For this reason, many countries have been considering the use of deep geological repositories (DGRs) for the safe disposal of this waste in the near future. Several DGR designs have been chemically, physically, and geologically well characterized. However, less is known about the influence of microbial processes for the safety of these disposal systems. The existence of microorganisms in many materials selected for their use as barriers for DGRs, including clay, cementitious materials, or crystalline rocks (e.g., granites), has previously been reported. The role that microbial processes could play in the metal corrosion of canisters containing radioactive waste, the transformation of clay minerals, gas production, and the mobility of the radionuclides characteristic of such residues is well known. Among the radionuclides present in radioactive waste, selenium (Se), uranium (U), and curium (Cm) are of great interest. Se and Cm are common components of the spent nuclear fuel residues, mainly as 79Se isotope (half-life 3.27 × 105 years), 247Cm (half-life: 1.6 × 107 years) and 248Cm (half-life: 3.5 × 106 years) isotopes, respectively. This review presents an up-to-date overview about how microbes occurring in the surroundings of a DGR may influence their safety, with a particular focus on the radionuclide-microbial interactions. Consequently, this paper will provide an exhaustive understanding about the influence of microorganisms in the safety of planned radioactive waste repositories, which in turn might improve their implementation and efficiency.

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“…For instance, a broad spectrum of bacterial species belonging to genera such as Bacillus subtilis, Bacillus cereus, Stenotrophomonas maltophilia, Stenotrophomonas bentonitica, Thauera selenatis, Ralstonia metallidurans or Geobacter sulfurreducens , have been reported to produce amorphous nanospheres ranging from 50 to 200 nm (Butler et al, 2012 ; Jia et al, 2022 ; Kora, 2018 ; Lampis et al, 2017 ; Pearce et al, 2009 ; Roux et al, 2001 ; Ruiz‐Fresneda et al, 2023 ). Less frequently, some bacteria have been reported to form crystalline NPs (monoclinic, trigonal allotropes) with different shapes (polygonal, nanorods, nanowires, hexagons, etc.).…”

Section: Biological Synthesis Of Sementioning

confidence: 99%

Allotropy of selenium nanoparticles: Colourful transition, synthesis, and biotechnological applications

Ruiz-Fresneda

Staicu

Lazuén-López

et al. 2023

Microbial Biotechnology

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Elemental selenium (Se 0 ) nanomaterials undergo allotropic transition from thermodynamically-unstable to more stable phases. This process is significantly different when Se 0 nanoparticles (NPs) are produced via physico-chemical and biological pathways. While the allotropic transition of physico-chemically synthesized Se 0 is fast (minutes to hours), the biogenic Se 0 takes months to complete. The biopolymer layer covering biogenic Se 0 NPs might be the main factor controlling this retardation, but this still remains an open question. Phylogenetically-diverse bacteria reduce selenium oxyanions to red amorphous Se 0 allotrope, which has low market value. Then, red Se 0 undergoes allotropic transition to trigonal (metallic grey) allotrope, the end product having important industrial applications (e.g. semiconductors, alloys). Is it not yet clear whether biogenic Se 0 presents any biological function, or it is mainly a detoxification and respiratory by-product. The better understanding of this transition would benefit the recovery of Se 0 NPs from secondary resources and its targeted utilization with respect to each allotropic stage. This review article presents and critically discusses the main physico-chemical methods and biosynthetic pathways of Se 0 (bio)mineralization. In addition, the article proposes a conceptual model for the resource recovery potential of trigonal selenium nanomaterials in the context of circular economy.

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Combined bioreduction and volatilization of SeVI by Stenotrophomonas bentonitica: Formation of trigonal selenium nanorods and methylated species

Cited by 12 publications

References 54 publications

Simultaneous bioreduction of tellurite and selenite by Yarrowia lipolytica, Trichosporon cutaneum, and their co-culture along with characterization of biosynthesized Te–Se nanoparticles

Simultaneous bioreduction of tellurite and selenite by Yarrowia lipolytica, Trichosporon cutaneum, and their co-culture along with characterization of biosynthesized Te–Se nanoparticles

Impact of microbial processes on the safety of deep geological repositories for radioactive waste

Allotropy of selenium nanoparticles: Colourful transition, synthesis, and biotechnological applications

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