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- Sulfur_cycle abstract "The sulfur cycle is the collection of processes by which sulfur moves to and from minerals (including the waterways) and living systems. Such biogeochemical cycles are important in geology because they affect many minerals. Biogeochemical cycles are also important for life because sulfur is an essential element, being a constituent of many proteins and cofactors.Steps of the sulfur cycle are: Mineralization of organic sulfur into inorganic forms, such as hydrogen sulfide (H2S), elemental sulfur, as well as sulfide minerals. Oxidation of hydrogen sulfide, sulfide, and elemental sulfur (S) to sulfate (SO42–). Reduction of sulfate to sulfide. Incorporation of sulfide into organic compounds (including metal-containing derivatives).These are often termed as follows:Assimilative sulfate reduction (see also sulfur assimilation) in which sulfate (SO42–) is reduced by plants, fungi and various prokaryotes. The oxidation states of sulfur are +6 in sulfate and –2 in R–SH.Desulfurization in which organic molecules containing sulfur can be desulfurized, producing hydrogen sulfide gas (H2S, oxidation state = –2). An analogous process for organic nitrogen compounds is deamination.Oxidation of hydrogen sulfide produces elemental sulfur (S8), oxidation state = 0. This reaction occurs in the photosynthetic green and purple sulfur bacteria and some chemolithotrophs. Often the elemental sulfur is stored as polysulfides.Oxidation of elemental sulfur by sulfur oxidizers produces sulfate.Dissimilative sulfur reduction in which elemental sulfur can be reduced to hydrogen sulfide.Dissimilative sulfate reduction in which sulfate reducers generate hydrogen sulfide from sulfate.↑".
- Sulfur_cycle thumbnail Sulfur_cycle_-_English.jpg?width=300.
- Sulfur_cycle wikiPageExternalLink Soxidat.html.
- Sulfur_cycle wikiPageExternalLink cycleSulfur.shtml.
- Sulfur_cycle wikiPageExternalLink www.epa.gov.
- Sulfur_cycle wikiPageExternalLink sulphur-cycle.htm.
- Sulfur_cycle wikiPageID "2465352".
- Sulfur_cycle wikiPageRevisionID "592714782".
- Sulfur_cycle e "22".
- Sulfur_cycle hasPhotoCollection Sulfur_cycle.
- Sulfur_cycle u "g".
- Sulfur_cycle subject Category:Biogeochemical_cycle.
- Sulfur_cycle subject Category:Metabolism.
- Sulfur_cycle subject Category:Soil_biology.
- Sulfur_cycle subject Category:Soil_chemistry.
- Sulfur_cycle subject Category:Sulfur.
- Sulfur_cycle comment "The sulfur cycle is the collection of processes by which sulfur moves to and from minerals (including the waterways) and living systems. Such biogeochemical cycles are important in geology because they affect many minerals.".
- Sulfur_cycle label "Ciclo del azufre".
- Sulfur_cycle label "Ciclo dello zolfo".
- Sulfur_cycle label "Ciclo do enxofre".
- Sulfur_cycle label "Cycle du soufre".
- Sulfur_cycle label "Obieg siarki w przyrodzie".
- Sulfur_cycle label "Schwefelkreislauf".
- Sulfur_cycle label "Sulfur cycle".
- Sulfur_cycle label "دورة الكبريت".
- Sulfur_cycle label "硫循环".
- Sulfur_cycle label "硫黄循環".
- Sulfur_cycle sameAs Koloběh_síry.
- Sulfur_cycle sameAs Schwefelkreislauf.
- Sulfur_cycle sameAs Κύκλος_θείου.
- Sulfur_cycle sameAs Ciclo_del_azufre.
- Sulfur_cycle sameAs Cycle_du_soufre.
- Sulfur_cycle sameAs Ciclo_dello_zolfo.
- Sulfur_cycle sameAs 硫黄循環.
- Sulfur_cycle sameAs 황의_순환.
- Sulfur_cycle sameAs Obieg_siarki_w_przyrodzie.
- Sulfur_cycle sameAs Ciclo_do_enxofre.
- Sulfur_cycle sameAs m.07fzpd.
- Sulfur_cycle sameAs Q1361502.
- Sulfur_cycle sameAs Q1361502.
- Sulfur_cycle wasDerivedFrom Sulfur_cycle?oldid=592714782.
- Sulfur_cycle depiction Sulfur_cycle_-_English.jpg.
- Sulfur_cycle isPrimaryTopicOf Sulfur_cycle.
