Back to Search
Start Over
Concentration and Transport of Nitrate by the Mat-Forming Sulfur Bacterium Thioploca Rid E-1821-2011
- Source :
- FOSSING, H, GALLARDO, VA, JØRGENSEN, BB, HUTTEL, M, NIELSEN, LP, SCHULZ, H, CANFIELD, DE, FORSTER, S, GLUD, RN, GUNDERSEN, JK, KUVER, J, RAMSING, NB, TESKE, A, THAMDRUP, B & ULLOA, O 1995, ' Concentration and Transport of Nitrate by the Mat-Forming Sulfur Bacterium Thioploca Rid E-1821-2011 ', Nature, vol. 374, no. 6524, pp. 713-715 ., Aarhus University
- Publication Year :
- 1995
-
Abstract
- MARINE species of Thioploca occur over 3,000 km along the continental shelf off Southern Peru and North and Central Chile(1-4). These filamentous bacteria live in bundles surrounded by a common sheath and form thick mats on the sea floor under the oxygen-minimum zone in the upwelling region, at between 40 and 280 m water depth. The metabolism of this marine bacterium(5,6) remained a mystery until long after its discovery(1,7). We report here that Thioploca cells are able to concentrate nitrate to up to 500 mM in a liquid vacuole that occupies >80% of the cell volume. Gliding filaments transport this nitrate 5-10 cm down into the sediment and reduce it, with concomitant oxidation of hydrogen sulphide, thereby coupling the nitrogen and sulphur cycles in the sediment.
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- FOSSING, H, GALLARDO, VA, JØRGENSEN, BB, HUTTEL, M, NIELSEN, LP, SCHULZ, H, CANFIELD, DE, FORSTER, S, GLUD, RN, GUNDERSEN, JK, KUVER, J, RAMSING, NB, TESKE, A, THAMDRUP, B & ULLOA, O 1995, ' Concentration and Transport of Nitrate by the Mat-Forming Sulfur Bacterium Thioploca Rid E-1821-2011 ', Nature, vol. 374, no. 6524, pp. 713-715 ., Aarhus University
- Accession number :
- edsair.dedup.wf.001..990e74e72b08032b1c8ca933c05ad347