The Biological Methylation of Metals and Metalloids

Thayer, John S.; Brinckman, F. E.

doi:10.1016/s0065-3055(08)60524-9

Cited by 61 publications

(31 citation statements)

References 196 publications

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“…Moreover, the new evidence for microbial methylation of inorganic tin(IV), tin(II), and common intermediate organotins suggests--just as was shown earlier fur the sedimentary cycle for methylmercury [26,30,311--that a counter mechanism for sustaining methyltin(IV) [331, but must be fortuitous since many other abiotic transmethylation pathways for forming and decomposing methyltins are known. We shall consider several of these possibilities in the following section, both in the context of biomethylation and abiotic transmethylation.…”

Section: (13]mentioning

confidence: 91%

“…Consequently, the effectiveness with which this exocellular metabolite methylates a broad range of metal ions in solution [14,251 suggests an important new line of investigation for metal release from sewage outfalls. Moreover, Thayer reports [26] that CH 3 -B 1 2 is also capable of dissolving many refractory metal oxides, including highly insoluble SnO to possibly form methylmetal species in aqueous solution.…”

Section: Bioavailability Of Tin In Relation To Other Bioactive Elementsmentioning

confidence: 99%

“…Figure 1 illustrates a combination of in vitro and environmental experience for three heavy elements of great technological importance that undergo microbial methylation in marine sediments [26].…”

Section: Chemical and Biological Interactions Of Mthytins With Elementsmentioning

confidence: 99%

“…or less [5], but like the related transmethylation reaction illustrated in equation (3) probably can kinetically compete with microbial methylation and demethylation reactions [26].…”

Section: Chemical and Biological Interactions Of Mthytins With Elementsmentioning

confidence: 99%

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Ultratrace Speciation and Biogenesis of Methyltin Transport Species in Estuarine Waters

Brinckman

Jackson

Blair

et al. 1983

Trace Metals in Sea Water

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Environmental tin, widely dispersed at low concentrations in waters, sediments, and biota, is now perceived to be a bioactive element susceptible to methylation and even hydridization by marine bacteria. Nonetheless, the redox cycle of tin in natural waters is poorly understood and recent advances in tin-specific molecular characterization fail to speciate Sn(II) and Sn(IV) reliably. On the other hand, such rapid developments in speciation methodology now permit growing numbers of studies of organotin distributions in aquatic systems, raising the question of the Lnatural? biogeochemical flux of methylstannanes in relation to increased anthropogenic organotin influx from industry and shipping. New methods for direct speciation of aquated or involatile organotins by liquid chromatography are compared with advances in purge-and-trap sampling of volatile or hydrophobic organotins speciated by gas chromatography. The work in our laboratory indicates that effective models for estuarine formation and transport may ultimately be developed, but that basic roadblocks to progress stem from inadequate descriptive aqueous organometallic chemistry and knowledge of critical kinetic parameters for the lifetimes of key organotin species in sea water.

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Section: (13]mentioning

confidence: 91%

Section: Bioavailability Of Tin In Relation To Other Bioactive Elementsmentioning

confidence: 99%

Section: Chemical and Biological Interactions Of Mthytins With Elementsmentioning

confidence: 99%

“…or less [5], but like the related transmethylation reaction illustrated in equation (3) probably can kinetically compete with microbial methylation and demethylation reactions [26].…”

Section: Chemical and Biological Interactions Of Mthytins With Elementsmentioning

confidence: 99%

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Ultratrace Speciation and Biogenesis of Methyltin Transport Species in Estuarine Waters

Brinckman

Jackson

Blair

et al. 1983

Trace Metals in Sea Water

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“…Understanding these processes requires measurements with a high degree of element-and speciesspecificity and extremely low detection liurits charactenstlc of living cells. These general requirements for ultratrace analysis of chemical speciation of heavy elements undergoing con- [44], but several basic points merit emphasis in addition to common features of preconcentration, molecular separation, and selective detection within meaningful time frames. Chemical speciation of important bioprocess products may be required in solution, gas phase, on surfaces, or intracellularly.…”

Section: Element·specific Detection Imaging and Quantitationmentioning

confidence: 99%

Inorganic Materials Biotechnology: A New Industrial Measurement Challenge

Olson¹,

Brinckman²

1986

J. RES. NAT. BUR. STAN.

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Biotechnological processing of inorganic, heavy elements has only begun to emerge as we start to understand microbial strategies and mechanisms of heavy element transformations. Chemical speciation of key, diagnostic intermediates and products of bioprocessing in gas, liquid. and cellular phases, and on surfaces, is required to understand and optimize important reactions. Recent discoveries of microorganisms in metalenriched thermal environments, and further investigations into production of exocellular metal transforming metabolites, offer exciting prospects for development of new technologies for strategic and precious materials recovery and processing.

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B₁₂and Related Organocobalt Chemistry: Formation and Cleavage of Cobalt Carbon Bonds

Toscano¹,

Marzillï²

1984

Progress in Inorganic Chemistry

144

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The Biological Methylation of Metals and Metalloids

Cited by 61 publications

References 196 publications

Ultratrace Speciation and Biogenesis of Methyltin Transport Species in Estuarine Waters

Ultratrace Speciation and Biogenesis of Methyltin Transport Species in Estuarine Waters

Inorganic Materials Biotechnology: A New Industrial Measurement Challenge

B₁₂and Related Organocobalt Chemistry: Formation and Cleavage of Cobalt Carbon Bonds

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The Biological Methylation of Metals and Metalloids

Cited by 61 publications

References 196 publications

Ultratrace Speciation and Biogenesis of Methyltin Transport Species in Estuarine Waters

Ultratrace Speciation and Biogenesis of Methyltin Transport Species in Estuarine Waters

Inorganic Materials Biotechnology: A New Industrial Measurement Challenge

B12and Related Organocobalt Chemistry: Formation and Cleavage of Cobalt Carbon Bonds

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B₁₂and Related Organocobalt Chemistry: Formation and Cleavage of Cobalt Carbon Bonds