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Sulfur Cycling and the Intestinal Microbiome
Digestive Diseases and Sciences, 2017In this review, we focus on the activities transpiring in the anaerobic segment of the sulfur cycle occurring in the gut environment where hydrogen sulfide is produced. While sulfate-reducing bacteria are considered as the principal agents for hydrogen sulfide production, the enzymatic desulfhydration of cysteine by heterotrophic bacteria also ...
Barton, Larry +3 more
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2014
This chapter addresses both geochemical and biogenic sulfur cycling, including their tight interconnections. It presents the cycling of sulfur between the atmosphere and the marine hydrosphere. The cycling involves redox processes and both biogenic and abiotic methylation and demethylation of sulfur.
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This chapter addresses both geochemical and biogenic sulfur cycling, including their tight interconnections. It presents the cycling of sulfur between the atmosphere and the marine hydrosphere. The cycling involves redox processes and both biogenic and abiotic methylation and demethylation of sulfur.
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2008
Microbes, especially bacteria, play an important role in oxidative and reductive cycle of sulfur. The oxidative part of the cycle is mediated by photosynthetic bacteria in the presence of light energy and chemosynthetic forms in the absence of light energy.
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Microbes, especially bacteria, play an important role in oxidative and reductive cycle of sulfur. The oxidative part of the cycle is mediated by photosynthetic bacteria in the presence of light energy and chemosynthetic forms in the absence of light energy.
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Biogeochemistry, 1984
Sulfur is essential for the production of certain amino acids in plants. As amino acid sulfur is the major form of sulfur in trees, there is a strong relationship between organic S and organic N in tree tissue. Sulfur deficiencies occur in parts of southeastern Australia and northwestern North America, remote from pollutant inputs.
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Sulfur is essential for the production of certain amino acids in plants. As amino acid sulfur is the major form of sulfur in trees, there is a strong relationship between organic S and organic N in tree tissue. Sulfur deficiencies occur in parts of southeastern Australia and northwestern North America, remote from pollutant inputs.
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1992
Publisher Summary Sulfur, the 14th most abundant element in the Earth's crust, plays a variety of important roles in the chemical functioning of the Earth. In its reduced oxidation state, sulfur is a key nutrient to life providing—for example, structural integrity to protein-containing tissues.
R.J. Charlson +2 more
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Publisher Summary Sulfur, the 14th most abundant element in the Earth's crust, plays a variety of important roles in the chemical functioning of the Earth. In its reduced oxidation state, sulfur is a key nutrient to life providing—for example, structural integrity to protein-containing tissues.
R.J. Charlson +2 more
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BIOGEOCHEMICAL CYCLES | Sulfur Cycle
2003This article is reproduced from the previous edition, volume 1, pp 213–220, © 2003, Elsevier Ltd.
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1973
The chemistry of gaseous sulfur compounds in the atmosphere at concentrations less than 0.1 ppm depends upon nonuniform distributions of sources and sinks as well as the variable physical properties of the atmosphere itself. Because of natural variations in sunlight intensity, temperature, humidity, surface chemical characteristics, and atmospheric ...
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The chemistry of gaseous sulfur compounds in the atmosphere at concentrations less than 0.1 ppm depends upon nonuniform distributions of sources and sinks as well as the variable physical properties of the atmosphere itself. Because of natural variations in sunlight intensity, temperature, humidity, surface chemical characteristics, and atmospheric ...
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Microorganisms and the Sulfur Cycle
1984Abstract The biogeochemical sulfur cycle consists of an assimilatory and a dissimilatory side. On the assimilatory side inorganic sulfur in reduced or oxidized form is taken up into microbes, plants and animals (via plants) and transformed there into amino acids, proteins, and coenzymes that function there until they are excreted or the organisms die
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