Articles | Volume 9, issue 7
https://doi.org/10.5194/bg-9-2407-2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/bg-9-2407-2012
© Author(s) 2012. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
04 Jul 2012
Research article |
| 04 Jul 2012
Occurrence and distribution of ladderane oxidation products in different oceanic regimes
D. Rush
NIOZ Royal Netherlands Institute for Sea Research, Department of Marine Organic Biogeochemistry, P.O. Box 59, 1790 AB Den Burg, Texel, The Netherlands
E. C. Hopmans
NIOZ Royal Netherlands Institute for Sea Research, Department of Marine Organic Biogeochemistry, P.O. Box 59, 1790 AB Den Burg, Texel, The Netherlands
S. G. Wakeham
Skidaway Institute of Oceanography, 20 Ocean Science Circle, Savannah, GA 31411, USA
now at: Department of Oceanography, University of Washington, Seattle, WA 98195-7940, USA
S. Schouten
NIOZ Royal Netherlands Institute for Sea Research, Department of Marine Organic Biogeochemistry, P.O. Box 59, 1790 AB Den Burg, Texel, The Netherlands
J. S. Sinninghe Damsté
NIOZ Royal Netherlands Institute for Sea Research, Department of Marine Organic Biogeochemistry, P.O. Box 59, 1790 AB Den Burg, Texel, The Netherlands
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T. Larsen, L. T. Bach, R. Salvatteci, Y. V. Wang, N. Andersen, M. Ventura, and M. D. McCarthy
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S. Ding, Y. Xu, Y. Wang, Y. He, J. Hou, L. Chen, and J.-S. He
Biogeosciences, 12, 3141–3151, https://doi.org/10.5194/bg-12-3141-2015, https://doi.org/10.5194/bg-12-3141-2015, 2015
P. Sepúlveda, J. P. Le Roux, L. E. Lara, G. Orozco, and V. Astudillo
Biogeosciences, 12, 1993–2001, https://doi.org/10.5194/bg-12-1993-2015, https://doi.org/10.5194/bg-12-1993-2015, 2015
F. Peterse, C. M. Moy, and T. I. Eglinton
Biogeosciences, 12, 933–943, https://doi.org/10.5194/bg-12-933-2015, https://doi.org/10.5194/bg-12-933-2015, 2015
C. Zell, J.-H. Kim, M. Balsinha, D. Dorhout, C. Fernandes, M. Baas, and J. S. Sinninghe Damsté
Biogeosciences, 11, 5637–5655, https://doi.org/10.5194/bg-11-5637-2014, https://doi.org/10.5194/bg-11-5637-2014, 2014
M. Blumenberg, C. Berndmeyer, M. Moros, M. Muschalla, O. Schmale, and V. Thiel
Biogeosciences, 10, 2725–2735, https://doi.org/10.5194/bg-10-2725-2013, https://doi.org/10.5194/bg-10-2725-2013, 2013
Y. Lu, Y. Hautevelle, and R. Michels
Biogeosciences, 10, 1943–1962, https://doi.org/10.5194/bg-10-1943-2013, https://doi.org/10.5194/bg-10-1943-2013, 2013
M. Blumenberg and F. Wiese
Biogeosciences, 9, 4139–4153, https://doi.org/10.5194/bg-9-4139-2012, https://doi.org/10.5194/bg-9-4139-2012, 2012
M. D. Wolhowe, F. G. Prahl, I. Probert, and M. Maldonado
Biogeosciences, 6, 1681–1694, https://doi.org/10.5194/bg-6-1681-2009, https://doi.org/10.5194/bg-6-1681-2009, 2009
Cited articles
Beam, H. W. and Perry, J. J.: Microbial degradation and assimilation of alkyl-substituted cycloparaffins, J. Bacteriol., 118, 394–399, 1974.
Bligh, E. G. and Dyer, W. J.: A rapid method of total lipid extraction and purification., Can. J. Biochem. Phys., 37, 911–917, 1959.
Brandsma, J., van de Vossenberg, J., Risgaard-Petersen, N., Schmid, M. C., Engstrom, P., Eurenius, K., Hulth, S., Jaeschke, A., Abbas, B., Hopmans, E. C., Strous, M., Schouten, S., Jetten, M. S. M., and Sinninghe Damsté, J. S.: A multi-proxy study of anaerobic ammonium oxidation in marine sediments of the Gullmar Fjord, Sweden, Environmental Microbiology Reports, 3, 360–366, 2011.
Canuel, E. A. and Martens, C. S.: Reactivity of recently deposited organic matter: Degradation of lipid compounds near the sediment-water interface, Geochim. Cosmochim. Ac., 60, 1793–1806, 1996.
Cowie, G. L., Hedges, J. I., and Calvert, S. E.: Sources and relative reactivities of amino acids, neutral sugars, and lignin in an intermittently anoxic marine environment, Geochim. Cosmochim. Ac., 56, 1963–1978, 1992.
D'Hondt, S., Jorgensen, B. B., Miller, J., and ODP Leg 201 Shipboard Scientific Party: Controls on microbial communities in deeply buried sediments, Eastern Equatorial Pacific and Peru Margin, Sites 1225–1231, Proc. ODP Init. Repts., 201, 1–32, 2003.
Ding, X. L. and Henrichs, S. M.: Adsorption and desorption of proteins and polyamino acids by clay minerals and marine sediments, Mar. Chem., 77, 225–237, 2002.
Dutta, T. K. and Harayama, S.: Biodegradation of n-alkylcycloalkanes and n-alkylbenzenes via new pathways in Alcanivorax sp. strain MBIC 4326, Appl. Environ. Microb., 67, 1970–1974, 2001.
Hamersley, M. R., Lavik, G., Woebken, D., Rattray, J. E., Lam, P., Hopmans, E. C., Sinninghe Damsté, J. S., Krüger, S., Graco, M., Gutiérrez, D., and Kuypers, M. M. M.: Anaerobic ammonium oxidation in the Peruvian oxygen minimum zone, Limnol. Oceanogr., 52, 923–933, 2007.
Hart, D. and Miller, D. J.: Analysis and correlation of volcanic ash in marine sediments from the Peru margin, Ocean Drilling Program Leg 201: explosive volcanic cycles of the north-central Andes, Proc. ODP Sci. Results, 201, 1–43, 2006.
Hedges, J. I. and Keil, R. G.: Sedimentary organic matter preservation: an assessment and speculative synthesis, Mar. Chem., 49, 81–115, 1995.
Hedges, J. I., Baldock, J. A., Gélinas, Y., Lee, C., Peterson, M., and Wakeham, S. G.: Evidence for non-selective preservation of organic matter in sinking marine particles, Nature, 409, 801–804, 2001.
Ho, T.-Y., Taylor, G. T., Astor, Y., Varela, R., Müller-Karger, F., and Scranton, M. I.: Vertical and temporal variability of redox zonation in the water column of the Cariaco Basin: implications for organic carbon oxidation pathways, Mar. Chem., 86, 89–104, 2004.
Hoefs, M. J. L., Rijpstra, W. I. C., and Sinninghe Damsté, J. S.: The influence of oxic degradation on the sedimentary biomarker record I: Evidence from Madeira Abyssal Plain turbidites, Geochim. Cosmochim. Ac., 66, 2719–2735, 2002.
Hopmans, E. C., Kienhuis, M. V. M., Rattray, J. E., Jaeschke, A., Schouten, S., and Sinninghe Damsté, J. S.: Improved analysis of ladderane lipids in biomass and sediments using high-performance liquid chromatography/atmospheric pressure chemical ionization tandem mass spectrometry, Rapid. Commun. Mass Sp., 20, 2099–2103, 2006.
Jaeschke, A., Hopmans, E. C., Wakeham, S. G., Schouten, S., and Sinninghe Damsté, J. S.: The presence of ladderane lipids in the oxygen minimum zone of the Arabian Sea indicates nitrogen loss through anammox, Limnol. Oceanogr., 52, 780–786, 2007.
Jaeschke, A., Lewan, M. D., Hopmans, E. C., Schouten, S., and Sinninghe Damsté, J. S.: Thermal stability of ladderane lipids as determined by hydrous pyrolysis, Org. Geochem., 39, 1735–1741, 2008.
Jaeschke, A., Rooks, C., Trimmer, M., Nicholls, J. C., Hopmans, E. C., Schouten, S., and Sinninghe Damsté, J. S.: Comparison of ladderane phospholipid and core lipids as indicators for anaerobic ammonium oxidation (anammox) in marine sediments, Geochim. Cosmochim. Ac., 73, 2077–2088, 2009a.
Jaeschke, A., Ziegler, M., Hopmans, E. C., Reichart, G.-J., Lourens, L. J., Schouten, S., and Sinninghe Damsté, J. S.: Molecular fossil evidence for anaerobic ammonium oxidation in the Arabian Sea over the last glacial cycle, Paleoceanography, 24, 1–11, 2009b.
Jaeschke, A., Abbas, B., Zabel, M., Hopmans, E. C., Schouten, S., and Sinninghe Damsté, J. S.: Molecular evidence for anaerobic ammonium-oxidizing (anammox) bacteria in continental shelf and slope sediments off northwest Africa, Limnol. Oceanogr., 55, 365–376, 2010.
Janssen, B. H.: A simple method for calculating decomposition and accumulation of "young" soil organic matter, Plant Soil, 76, 297–304, 1984.
Jensen, M. M., Lam, P., Revsbech, N. P., Nagel, B., Gaye, B., Jetten, M. S. M., and Kuypers, M. M. M.: Intensive nitrogen loss over the Omani Shelf due to anammox coupled with dissimilatory nitrite reduction to ammonium, ISME J., 5, 1660–1670, 2011.
Keil, R. G., Montlucon, D. B., Prahl, F. G., and Hedges, J. I.: Sorptive Preservation of Labile Organic-Matter in Marine-Sediments, Nature, 370, 549–552, 1994.
Koma, D., Hasumi, F., Chung, S. Y., and Kubo, M.: Biodegradation of n-alkylcyclohexanes by Co-oxidation via multiple pathways in Acinetobacter sp. ODDK71, J. Biosci. Bioeng., 95, 641–644, 2003.
Kuypers, M. M. M., Sliekers, A. O., Lavik, G., Schmid, M., Jørgensen, B. B., Kuenen, J. G., Sinninghe Damsté, J. S., Strous, M., and Jetten, M. S. M.: Anaerobic ammonium oxidation by anammox bacteria in the Black Sea, Nature, 422, 608–611, 2003.
Kuypers, M. M. M., Lavik, G., Woebken, D., Schmid, M., Fuchs, B. M., Amann, R., Jørgensen, B. B., and Jetten, M. S. M.: Massive nitrogen loss from the Benguela upwelling system through anaerobic ammonium oxidation, P. Natl. Acad. Sci. USA, 102, 6478–6483, 2005.
Lam, P., Jensen, M. M., Kock, A., Lettmann, K. A., Plancherel, Y., Lavik, G., Bange, H. W., and Kuypers, M. M. M.: Origin and fate of the secondary nitrite maximum in the Arabian Sea, Biogeosciences, 8, 1565–1577, https://doi.org/10.5194/bg-8-1565-2011, 2011.
Lengger, S. K., Hopmans, E. C., Reichart, G.-J., Nierop, K. G. J., Sinninghe Damsté, J. S., and Schouten, S.: Intact and core glycerol dibiphytanyl glycerol tetraether lipids in and below the Arabian Sea oxygen minimum zone: selective preservation and degradation in sediments and consequences for the TEX86, Geochim. Cosmochim. Ac., online first: https://doi.org/10.1016/j.gca.2012.05.003, 2012.
Middelburg, J. J.: A simple rate model for organic-matter decomposition in marine-sediments, Geochim. Cosmochim. Ac., 53, 1577–1581, 1989.
Mulder, A., Van de Graaf, A. A., Robertson, L. A., and Kuenen, J. G.: Anaerobic ammonium oxidation discovered in a denitrifying fluidized-bed reactor, FEMS Microbiol. Ecol., 16, 177–183, 1995.
Muller-Karger, F., Varela, R., Thunell, R., Scranton, M., Bohrer, R., Taylor, G., Capelo, J., Astor, Y., Tappa, E., Ho, T. Y., and Walsh, J. J.: Annual cycle of primary production in the Cariaco Basin: Response to upwelling and implications for vertical export, J. Geophys. Res., 106, 4527–4542, 2001.
Muller-Karger, F., Varela, R., Thunell, R., Astor, Y., Zhang, H., Luerssen, R., and Hu, C.: Processes of coastal upwelling and carbon flux in the Cariaco Basin, Deep-Sea Res. Pt. II, 51, 927–943, 2004.
Pitcher, A., Villanueva, L., Hopmans, E. C., Schouten, S., and Sinninghe Damsté, J. S.: Niche segregation of ammonia-oxidizing archaea and anammox bacteria in the Arabian Sea oxygen minimum zone, ISME J., 5, 1896–1904, 2011.
Rattray, J. E., van de Vossenberg, J., Hopmans, E. C., Kartal, B., van Niftrik, L., Rijpstra, W. I. C., Strous, M., Jetten, M. S. M., Schouten, S., and Sinninghe Damsté, J. S.: Ladderane lipid distribution in four genera of anammox bacteria, Arch. Microbiol., 190, 51–66, 2008.
Rattray, J. E., van de Vossenberg, J., Jaeschke, A., Hopmans, E. C., Wakeham, S. G., Lavik, G., Kuypers, M. M. M., Strous, M., Jetten, M. S. M., Schouten, S., and Sinninghe Damsté, J. S.: Impact of temperature on ladderane lipid distribution in anammox bacteria, Appl. Environ. Microb., 76, 1596–1603, 2010.
Rush, D., Jaeschke, A., Hopmans, E. C., Geenevasen, J. A. J., Schouten, S., and Sinninghe Damsté, J. S.: Short chain ladderanes: Oxic biodegradation products of anammox lipids, Geochim. Cosmochim. Ac., 75, 1662–1671, 2011.
Rush, D., Wakeham, S. G., Hopmans, E. C., Schouten, S., and Sinninghe Damsté, J. S.: Biomarker evidence for anammox in the oxygen minimum zone of the Eastern Tropical North Pacific, Org. Geochem., online first: https://doi.org/10.1016/j.orggeochem.2012.02.005, 2012.
Sinninghe Damsté, J. S., Strous, M., Rijpstra, W. I. C., Hopmans, E. C., Geenevasen, J. A. J., Van Duin, A. C. T., Van Niftrik, L. A., and Jetten, M. S. M.: Linearly concatenated cyclobutane lipids form a dense bacterial membrane, Nature, 419, 708–712, 2002.
Suess, E., Von Huene, R., and ODP Leg 112 Scientific Party: Peru continental margin, Proc. ODP Init. Repts., 112, 5–23, 1988.
Thamdrup, B. and Dalsgaard, T.: Production of N2 through anaerobic ammonium oxidation coupled to nitrate reduction in marine sediments, Appl. Environ. Microb., 68, 1312–1318, 2002.
Thamdrup, B., Dalsgaard, T., Jensen, M. M., Ulloa, O., Farias, L., and Escribano, R.: Anaerobic ammonium oxidation in the oxygen-deficient waters off northern Chile, Limnol. Oceanogr., 51, 2145–2156, 2006.
Trimmer, M., Nicholls, J. C., and Deflandre, B.: Anaerobic ammonium oxidation measured in sediments along the Thames estuary, United Kingdom, Appl. Environ. Microb., 69, 6447–6454, 2003.
Wakeham, S. G., Hedges, J. I., Lee, C., Peterson, M. L., and Hernes, P. J.: Compositions and transport of lipid biomarkers through the water column and surficial sediments of the equatorial Pacific Ocean, Deep-Sea Res. Pt. II, 44, 2131–2162, 1997.
Wakeham, S. G., Turich, C., Schubotz, F., Podlaska, A., Li, X. N., Valera, R., Astor, Y., Saenz, J. P., Rush, D., Sinninghe Damsté, J. S., Summons, R. E., Scranton, M. I., Taylor, G. T., and Hinrichs, K.-U.: Biomarkers, chemistry and microbiology show chemoautotrophy in a multilayer chemocline in the Cariaco Basin, Deep-Sea Res. Pt. I, 63, 133–156, 2012.
Ward, B. B., Devol, A. H., Rich, J. J., Chang, B. X., Bulow, S. E., Naik, H., Pratihary, A., and Jayakumar, A.: Denitrification as the dominant nitrogen loss process in the Arabian Sea, Nature, 461, 78–81, 2009.
