ARSINE PRODUCTION BY
            <i>TRICHOPHYTON RUBRUM</i>

Zussman, R. A.; Vicher, E. E.; Lyon, I.

doi:10.1128/jb.81.1.157-157.1961

Cited by 11 publications

(2 citation statements)

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“…Gosio gas was generated by molds growing on wallpaper paste containing an As pigment. Various fungi, molds, and microorganisms can metabolize arsenate, arsenite, MSMA, and cacodylic acid to volatile arsenicals (10,30,31,(43)(44)(45)(46)(47). Usually DMA or TMA are the forms identified.…”

Section: Arsenic Transformationsmentioning

confidence: 99%

Fate of arsenicals in different environmental substrates.

Woolson¹

1977

Environ Health Perspect

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The current knowledge of arsenic (As) transformations in the environment, as well as some gaps in this knowledge, are reviewed. These transformations involve As chemical and biochemical transformations in air, waters, sediments, and soils. Arsenic moves in a dispersive manner through air and water and is in physical and chemical equilibrium in many substrates. It is oxidized, reduced, methylated, volatilized, incorporated into biotic tissues, excreted, adsorbed, and desorbed. Oceanic sediments become the eventual sink for As. The rates of As movement and transformation vary with environmental conditions. Besides inorganic As, various methylated arsenicals are found naturally at environmentally sensitive equilibrium concentrations, which are probably maintained biotically. An As-transformation model has been constructed from rate constants derived from field observations. The environmental factors affecting these rate constants are discussed.

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Section: Arsenic Transformationsmentioning

confidence: 99%

Fate of arsenicals in different environmental substrates.

Woolson¹

1977

Environ Health Perspect

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“…The characteristic garlic-like odor is also produced from cultures of Trichophyton (18), from two species of wood-rotting fungi (11), and from sewage isolates of Candida, Gliocladium, and Penicillium (7). On the basis of these pure culture studies, Alexander (1) proposed that the major pathway by which arsenic is lost from soil is through a series of methylation reactions which give rise to TMA as the final product.…”

mentioning

confidence: 99%

Production of arsine and methylarsines in soil and in culture

Cheng¹,

Focht²

1979

Appl Environ Microbiol

103

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Arsenate, arsenite, monomethylarsonate, and dimethylarsinate were added to three different soils, and the evolution of gaseous arsenical products was determined over 3 weeks. Arsine was produced in all three soils from all substrates, whereas methylarsine and dimethylarsine were produced only from methylarsonate and dimethylarsinate, respectively. At least three times more arsine than dimethylarsine was produced in soil incubated with dimethylarsinate. Resting cell suspensions of Pseudomonas and Alcaligenes produced arsine as the sole product when incubated anaerobically in the presence of arsenate or arsenite. In all instances, no trimethylarsine was observed, nor could any evidence be shown for the methylation of any arsenical substrate in soil or in culture. It was concluded that reduction to arsine, not methylation to trimethylarsine, was the primary mechanism for gaseous loss of arsenicals from soil.

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Mineral transformations by fungi in culture and in soils

Wainwright

1981

J Plant Nutrition & Soil

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Although micro‐organisms are regarded as the principal agents of mineral cycling in soils, the role of bacteria has generally been emphasized, while that of fungi has been neglected. Fungi are able to transform the majority of elements in vitro but whether they play an important role in soil is as yet unknown. There is sufficient circumstantial evidence from soil studies to suggest that fungi may under certain conditions nitrify and oxidize reduced forms of sulphur. Their role in denitrification and sulphate reduction process is more speculative. While they appear incapable of nitrogen fixation, fungi undoubtedly play a major role in the mineralization of organic N,P, and S in soils, in the solubilization of insoluble phosphates, and participate in oxidation of manganese. Perhaps one of their most important roles is in the dissolution of silica and rocks thus releasing ions into the soil solution during weathering. The ability of fungi to oxidize elements in vitro does not compare with that of the chemoautotrophic bacteria. On the other hand in vitro activity tells us little about the activity of an organism in the soil. At present our appreciation of the part played by fungi in mineral cycling in soils is limited by the techniques available, but there is little doubt that they have a major role to play in the cycling of elements other than carbon.

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ARSINE PRODUCTION BY TRICHOPHYTON RUBRUM

Cited by 11 publications

References 0 publications

Fate of arsenicals in different environmental substrates.

Fate of arsenicals in different environmental substrates.

Production of arsine and methylarsines in soil and in culture

Mineral transformations by fungi in culture and in soils

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