Preference for particular lanthanide species and thermal stability of XoxFs in Methylorubrum extorquens strain AM1

Wang, Lun; Hibino, Ayumi; Suganuma, Souya; Ebihara, Akio; Iwamoto, Satoshi; Mitsui, Ryoji; Tani, Akio; Shimada, Morimi; Hayakawa, T.; Nakagawa, Tomoyuki

doi:10.1016/j.enzmictec.2020.109518

Cited by 13 publications

(9 citation statements)

References 46 publications

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“…Furthermore, biological processes within the WWTPs may fractionate La and, thus, modify the REE patterns of the sewage sludge. For example, LREE-dependent enzymes required for the methanol metabolism have been discovered in methylotrophic bacteria about a decade ago ( Cotruvo, 2019 ; Hibi et al., 2011 ; Nakagawa et al., 2012 ; L. L. Wang et al., 2020 ). More recently, X. Wang et al.…”

Section: Resultsmentioning

confidence: 99%

Quantification of individual Rare Earth Elements from industrial sources in sewage sludge

et al. 2021

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Rare Earth Elements (REEs) are used in increasing amounts in technical applications and consumer products. However, to date, the contribution of industrial sources to the loads of individual REEs in wastewater streams have not been quantified. Here, we determine the REE contents in sludge collected from 63 wastewater treatment plants (WWTPs) across Switzerland. To quantify the industrial fraction of individual REEs in the sewage sludge, we develop two complementary approaches, based on REE ratios and REE pattern fitting. Unspecific (background) inputs, with REE patterns similar to the averaged REE pattern of soils collected across Switzerland, dominate the REE budget of most WWTPs. A few WWTPs receive significant REE inputs from specific industrial sources. Based on population equivalents of Switzerland, we estimate a total annual load of 4200 kg Cerium (Ce, 0.5 g Ce year -1 capita -1 ), with an industrial contribution of 2000 kg year -1 . The latter agrees with estimates of probabilistic mass flow models for engineered nanoscale CeO 2 particles discharged to the sewer network. About 7 kg year -1 of Samarium (Sm,total for Switzerland: 184 kg year -1 or 0.02 g Sm year -1 capita -1 ) and 3 kg year -1 of Europium (Eu,total for Switzerland: 44 kg year -1 or 0.005 g Eu year -1 capita -1 ) are assigned to industrial inputs from single WWTPs. Gadolinium (Gd) is used in the form of a stable complex as contrast agent in magnetic resonance imaging. Assuming 10% removal of Gd during wastewater treatment, we calculate an annual discharge of 90 kg of Gd from one individual WWTP to surface waters. WWTPs with exceptionally high industrial inputs of specific REEs warrant detailed investigations to identify the respective sources and to assess whether REE concentrations in effluents are elevated to the same degree.

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Section: Resultsmentioning

confidence: 99%

Quantification of individual Rare Earth Elements from industrial sources in sewage sludge

et al. 2021

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“…This could explain why M. fumariolicum SolV has a higher growth rate on lanthanum and praseodymium compared to that on europium. In addition, a higher binding affinity between XoxF and XoxG in Methylorubrum extorquens AM1 is observed when XoxF has the lightest lanthanide lanthanum incorporated in comparison to those with heavier lanthanides such as neodymium ( 38 , 66 ). Washing cycles of Nd-XoxF1 revealed PQQ dissociation, which could also lead to wash-out of the lanthanide.…”

Section: Discussionmentioning

confidence: 99%

Neodymium as Metal Cofactor for Biological Methanol Oxidation: Structure and Kinetics of an XoxF1-Type Methanol Dehydrogenase

Schmitz

Picone

Singer

et al. 2021

mBio

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Lanthanides comprise a group of 15 elements with atomic numbers 57 to 71 that are essential in a variety of high-tech devices, such as mobile phones, but were considered biologically inert for a long time. The biological relevance of lanthanides became evident when the acidophilic methanotroph Methylacidiphilum fumariolicum SolV, isolated from a volcanic mud pot, could only grow when lanthanides were supplied to the growth medium.

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“…The role of REE has been interpreted as a cofactor for MDH, which derives energy from a variety of C 1 -C 2 substrates in both methylotrophic and non-methylotrophic bacteria (Chistoserdova & Kalyuzhnaya, 2018;. So far, the role of lanthanoids as possible cofactors has been demonstrated in XoxFs, where micromolar quantities of La 3+ and Cs 3+ (Fitriyanto et al, 2011b;Hibi et al, 2011;Nakagawa et al, 2012) and La 3+ -Gd 3+ (Pol et al, 2014;Wang et al, 2020) were detected. Similarly, REE have been detected in ExaF and PedH, where they facilitate the metabolism of multi-carbon substrates, such as aliphatic, aromatic, primary and secondary alcohols as well as aldehydes (Good et al, 2016;Wehrmann et al, 2017) and in lanmodulin, where they stimulate its maturation and structural reorientation to a functional protein (Cotruvo et al, 2018).…”

Section: The Role Of Ree In Microbial Metabolismmentioning

confidence: 99%

Environmental Technologies to Treat Rare Earth Element Pollution: Principles and Engineering

2022

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Rare earth elements (REE) have applications in various modern technologies, e.g., semiconductors, mobile phones, magnets. They are categorized as critical raw materials due to their strategic importance in economies and high risks associated with their supply chain. Therefore, more sustainable practices for efficient extraction and recovery of REE from secondary sources are being developed. This book, Environmental Technologies to Treat Rare Earth Elements Pollution: Principles and Engineering: presents the fundamentals of the (bio)geochemical cycles of rare earth elements and which imbalances in these cycles result in pollution.overviews physical, chemical and biological technologies for successful treatment of water, air, soils and sediments contaminated with different rare earth elements.explores the recovery of value-added products from waste streams laden with rare earth elements, including nanoparticles and quantum dots. This book is suited for teaching and research purposes as well as professional reference for those working on rare earth elements. In addition, the information provided in this book is helpful to scientists, researchers and practitioners in related fields, such as those working on metal/metalloid microbe interaction and sustainable green approaches for resource recovery from wastes. ISBN: 9781789062229 (Paperback) ISBN: 9781789062236 (eBook) ISBN: 9781789062243 (ePUB)

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Preference for particular lanthanide species and thermal stability of XoxFs in Methylorubrum extorquens strain AM1

Cited by 13 publications

References 46 publications

Quantification of individual Rare Earth Elements from industrial sources in sewage sludge

Quantification of individual Rare Earth Elements from industrial sources in sewage sludge

Neodymium as Metal Cofactor for Biological Methanol Oxidation: Structure and Kinetics of an XoxF1-Type Methanol Dehydrogenase

Environmental Technologies to Treat Rare Earth Element Pollution: Principles and Engineering

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