Nitrite, an Electron Donor for Anoxygenic Photosynthesis
We report a previously unknown process in which anoxygenic phototrophic bacteria use nitrite as an electron donor for photosynthesis. We isolated a purple sulfur bacterium 98% identical to Thiocapsa species that stoichiometrically oxidizes nitrite to nitrate in the light. Growth and nitrate producti...
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| Veröffentlicht in: | Science (American Association for the Advancement of Science) 2007-06, Vol.316 (5833), p.1870-1870 |
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| container_end_page | 1870 |
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| container_issue | 5833 |
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| container_title | Science (American Association for the Advancement of Science) |
| container_volume | 316 |
| creator | Griffin, Benjamin M Schott, Joachim Schink, Bernhard |
| description | We report a previously unknown process in which anoxygenic phototrophic bacteria use nitrite as an electron donor for photosynthesis. We isolated a purple sulfur bacterium 98% identical to Thiocapsa species that stoichiometrically oxidizes nitrite to nitrate in the light. Growth and nitrate production strictly depended on both light and nitrite. This is the first known microbial mechanism for the stoichiometric oxidation of nitrite to nitrate in the absence of oxygen and the only known photosynthetic oxidation in the nitrogen cycle. This work demonstrates nitrite as the highest-potential electron donor for anoxygenic photosynthesis known so far. |
| doi_str_mv | 10.1126/science.1139478 |
| format | Article |
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We isolated a purple sulfur bacterium 98% identical to Thiocapsa species that stoichiometrically oxidizes nitrite to nitrate in the light. Growth and nitrate production strictly depended on both light and nitrite. This is the first known microbial mechanism for the stoichiometric oxidation of nitrite to nitrate in the absence of oxygen and the only known photosynthetic oxidation in the nitrogen cycle. This work demonstrates nitrite as the highest-potential electron donor for anoxygenic photosynthesis known so far.</description><identifier>ISSN: 0036-8075</identifier><identifier>EISSN: 1095-9203</identifier><identifier>DOI: 10.1126/science.1139478</identifier><identifier>PMID: 17600210</identifier><identifier>CODEN: SCIEAS</identifier><language>eng</language><publisher>Washington, DC: American Association for the Advancement of Science</publisher><subject>Bacteria ; Bacteriology ; Biochemistry ; Biological and medical sciences ; Brevia ; Chromatiaceae - cytology ; Chromatiaceae - growth & development ; Chromatiaceae - isolation & purification ; Chromatiaceae - metabolism ; Cultural enrichment ; Electron Transport ; Electrons ; Fundamental and applied biological sciences. Psychology ; Geologic Sediments - microbiology ; Light ; Metabolism. 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We isolated a purple sulfur bacterium 98% identical to Thiocapsa species that stoichiometrically oxidizes nitrite to nitrate in the light. Growth and nitrate production strictly depended on both light and nitrite. This is the first known microbial mechanism for the stoichiometric oxidation of nitrite to nitrate in the absence of oxygen and the only known photosynthetic oxidation in the nitrogen cycle. 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Enzymes</subject><subject>Microbiology</subject><subject>Nitrates</subject><subject>Nitrates - metabolism</subject><subject>Nitrites</subject><subject>Nitrites - metabolism</subject><subject>Oxidation</subject><subject>Oxidation-Reduction</subject><subject>Photosynthesis</subject><subject>Sewage - microbiology</subject><subject>Thiocapsa</subject><issn>0036-8075</issn><issn>1095-9203</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkc1LxDAQxYMoun6cPalF0JN1J0nbNEfxG0QF3XNJ0-lul26iSRfc_96ULQpePIRJeL95TOYRckjhklKWjb1u0GgMDy4TkW-QEQWZxpIB3yQjAJ7FOYh0h-x6PwcImuTbZIeKDIBRGJH8uelc0-FFpEx026LunDXRjTXWRXU4V8Z-raZoGh29zmxn_cp0M_SN3ydbtWo9Hgx1j0zubt-vH-Knl_vH66unWKcZ72LKknDRFZSSyZJzJVBhKmvUCUvKkldlhoB5Tau6lJXSkpUJigorxqSiNOV75Hzt--Hs5xJ9Vywar7FtlUG79AXPUiYl4_-CjNIscOJfkEoBuYQePP0Dzu3SmfDbYMZT2VMBGq8h7az3DuviwzUL5VYFhaLPqBgyKoaMQsfxYLssF1j98kMoATgbAOW1amunjG78L5eHVfK8n-9ozc19Z92PzvrYUyGDfrLWa2ULNXXBY_LGgHIAkWc8LPcb7jes5A</recordid><startdate>20070629</startdate><enddate>20070629</enddate><creator>Griffin, Benjamin M</creator><creator>Schott, Joachim</creator><creator>Schink, Bernhard</creator><general>American Association for the Advancement of Science</general><general>The American Association for the Advancement of Science</general><scope>FBQ</scope><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7QG</scope><scope>7QL</scope><scope>7QP</scope><scope>7QQ</scope><scope>7QR</scope><scope>7SC</scope><scope>7SE</scope><scope>7SN</scope><scope>7SP</scope><scope>7SR</scope><scope>7SS</scope><scope>7T7</scope><scope>7TA</scope><scope>7TB</scope><scope>7TK</scope><scope>7TM</scope><scope>7U5</scope><scope>7U9</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>F28</scope><scope>FR3</scope><scope>H8D</scope><scope>H8G</scope><scope>H94</scope><scope>JG9</scope><scope>JQ2</scope><scope>K9.</scope><scope>KR7</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope><scope>M7N</scope><scope>P64</scope><scope>RC3</scope><scope>F1W</scope><scope>H95</scope><scope>L.G</scope></search><sort><creationdate>20070629</creationdate><title>Nitrite, an Electron Donor for Anoxygenic Photosynthesis</title><author>Griffin, Benjamin M ; Schott, Joachim ; Schink, Bernhard</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c563t-124c56cd0b929b33a7eae59fec424bb3db6e0e8f1dfb9dac92b4e7ded229a1153</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Bacteria</topic><topic>Bacteriology</topic><topic>Biochemistry</topic><topic>Biological and medical sciences</topic><topic>Brevia</topic><topic>Chromatiaceae - cytology</topic><topic>Chromatiaceae - growth & development</topic><topic>Chromatiaceae - isolation & purification</topic><topic>Chromatiaceae - metabolism</topic><topic>Cultural enrichment</topic><topic>Electron Transport</topic><topic>Electrons</topic><topic>Fundamental and applied biological sciences. 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| ispartof | Science (American Association for the Advancement of Science), 2007-06, Vol.316 (5833), p.1870-1870 |
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| subjects | Bacteria Bacteriology Biochemistry Biological and medical sciences Brevia Chromatiaceae - cytology Chromatiaceae - growth & development Chromatiaceae - isolation & purification Chromatiaceae - metabolism Cultural enrichment Electron Transport Electrons Fundamental and applied biological sciences. Psychology Geologic Sediments - microbiology Light Metabolism. Enzymes Microbiology Nitrates Nitrates - metabolism Nitrites Nitrites - metabolism Oxidation Oxidation-Reduction Photosynthesis Sewage - microbiology Thiocapsa |
| title | Nitrite, an Electron Donor for Anoxygenic Photosynthesis |
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