Dr. Kevin W. Becker

Research Scientist

 

Research Division: Marine Biogeochemistry
Research Unit: Biological Oceanography

 CV

Office:
Room: DW-026
Phone: +49 431 600-4122
Email: kbecker(at)geomar.de

Address:
Düsternbrooker Weg 20
D-24105 Kiel

Research Interest

As an organic geochemist, I work at the interface of biology, chemistry and geology and my overarching research interests revolve around the role of microorganisms in the regulation of global biogeochemical cycles. I am particularly interested in studying the ecophysiology of microbial communities in energy- and nutrient-limited environments, such as the open oligotrophic ocean and marine sediments. To this end, I investigate molecular-level responses of marine organisms to their changing environment, i.e. the information encoded in the molecular and isotopic composition of particulate and dissolved complex biomolecules. With my research, I aim to contribute to our understanding of how and why organisms leave their particular chemical signals and to provide new insights on the microbial processes that drive biogeochemical processes in the modern ocean and the geological past.

Experience

  • Since March 2019 Research Scientist, GEOMAR - Helmholtz Centre for Ocean Research Kiel, Germany
  • Since March 2019 Guest Investigator, Woods Hole Oceanographic Insitution, USA
  • 2017- 2019 Postdoctoral Investigator, Woods Hole Oceanographic Instituton, USA
  • 2015-2017 Postdoctoral Scholar, Woods Hole Oceanographic Instituton & United States Geological Surey, USA

Education

  • 2015 Dr. rer. nat. Geosciences, University of Bremen, Bremen, Germany
  • 2011 M.Sc. Geosciences (with honors), University of Bremen, Bremen, Germany
  • 2009 B.Sc. Geosciences, University of Bremen, Bremen, Germany

Expeditions

[6] 07-08/2019 RV Meteor cruise M156, Eddy study to understand bentho-pelagic coupling and the biological carbon pump as a function of eddy type off West Africa (MOSES Eddy Study I).

[5] 03-04/2018 RV Falkor cruise FK180310 “Eddy Exploration and Ecosystem Dynamics”.

[4] 06-07/2017 RV Kilo Moana cruise KM1709 “MESO-SCOPE (Microbial Ecology of the Surface Ocean – Simons Collaboration on Ocean Processes and Ecology)”

[3] 04-05/2017 RV Atlantis cruise AT37/12 “Dark Life II – Expedition to study subseafloor life at deep-sea vents". Participitation in descent in DSV2 Alvin on dive #4898 to a depth of 2523 m.

[2] 02/2011 RV Meteor cruise M84/1 "DARCSEAS I - Deep subseafloor Archaea in the eastern Mediterranean, Marmara and Black seas: carbon cycle, life strategies, and role in sedimentary ecosystems".

[1] 04/2010 Alaska North Slope - "Source characterization and temporal variation of methane seepage from thermokarst lakes on the Alaska North Slope in response to arctic climate change", invited by the U.S. Geological Survey.

Publications

[16] Evans, T.W., Coffinet, S., Könneke, M., Lipp, J.S., Becker, K.W., Elvert, M., Heuer, V., Hinrichs, K.-U. (2019). Assessing the carbon assimilation and production of benthic archaeal biomarkers using lipid-RIP. Geochimica et Cosmochimica Acta 265, 431-442. doi: 10.1016/j.gca.2019.08.030

[15] Becker, K.W., Collins, J.R., Durham, B.P., Groussman, R.D., White, A.E., Fredricks, H.F., Ossolinski, J.E., Repeta, D.J., Carini, P., Armbrust, E.V., Van Mooy, B.A.S (2018). Daily changes in phytoplankton lipidomes reveal mechanisms of energy storage in the open ocean. Nature Communications 9(1), 5179. doi: 10.1038/s41467-018-07346-z

[14] Becker, K.W., Elling, F.J., Schröder, J.M., Lipp, J.S., Goldhammer, T., Zabel, M., Elvert, M., Overmann, J., Hinrichs, K.-U. (2018). Isoprenoid quinones resolve the stratification of redox processes in a biogeochemical continuum from the photic zone to deep anoxic sediments of the Black Sea. Applied and Environmental Microbiology 84 (10) e02736-17. doi: 10.1128/AEM.02736-17<cite></cite>

[13] Götz, F., Longnecker, K., Kido Soule, M.C., Becker, K.W., McNichol, J., Kujawinski, E.B., Sievert, S.M. (2018). Targeted metabolomics reveals proline as a major osmolyte in the chemolithoautotrophic epsilonproteobacterium Sulfurimonas denitrificans. Microbiology Open; e586. doi: 10.1002/mbo3.586

[12] Brankovits, D., Pohlman, J.W., Niemann, H., Leigh, M.B., Leewis, M.-C., Becker, K.W., Iliffe, T.M., Alvarez, F., Lehmann, M.F., Phillips, B. (2018). Methane- and dissolved organic carbon-fueled microbial loop supports a tropical subterranean estuary ecosystem. Nature Communications 8, 1835. doi: 10.1038/s41467-017-01776-x

[11] Elling, F., Könneke, M., Nicol, G.W., Stieglmeier, M., Bayer, B., Spieck, E., de la Torre, J.R., Becker, K.W., Thomm, M., Prosser, J.I., Herndl, G.J., Schleper, C., and Hinrichs, K.-U. (2017). Chemo­taxo­nomic char­ac­ter­iz­a­tion of the thau­marchaeal lip­idome. Environmental Microbiology. doi: 10.1111/1462-2920.13759

[10] Elvert, M., Pohlman, J.W., Becker, K.W., Gaglioti, B., Hinrichs, K.-U. and Wooller, M.J. (2016). Methane turnover and environmental change from Holocene lipid biomarker records in a thermokarst lake in Arctic Alaska. The Holocene 26(11), 1766-1777. doi: 10.1177/0959683616645942

[9] Becker, K.W., Elling, F.J., Yoshinaga, M.Y., Söllinger, A., Urich, T. and Hinrichs, K.-U. (2016). Unusual butane- and pentanetriol-based tetraether lipids in Methanomassiliicoccus luminyensis, a representative of the seventh order of methanogens. Applied and Environmental Microbiology 82(15), 4505-4516. doi: 10.1128/AEM.00772-16

[8] Braun, S., Y Morono, Y., Becker, K.W., Hinrichs, K.-U., Kjeldsen, K.U., Jørgensen, B.B., Lomstein, A.A. (2016). Cellular content of biomolecules in sub-seafloor microbial communities. Geochimica et Cosmochimica Acta 188, 330-351. doi: 10.1016/j.gca.2016.06.019

[7] Hamann, E., Gruber-Vodicka, H., Kleiner, M., Tegetmeyer, H.E., Riedel, D., Littmann, S., Chen, J., Milucka, J., Viehweger, B., Becker, K.W., Dong, X., Stairs, C.W., Hinrichs, K.-U., Brown, M.W., Roger, A.J. and Strous, M. (2016). Environmental Breviatea harbour mutualistic Arcobacter epibionts. Nature 534, 254-258. doi: 10.1038/nature18297

[6] Elling, F.J.*, Becker, K.W.*, Könneke, M., Schröder, J.M., Kellermann, M.Y., Thomm, M. and Hinrichs, K.U. (2016).Respiratory quinones in Archaea: phylogenetic implications and application as biomarkers in the marine environment. Environmental Microbiology 18(2), 692-707.

*These authors contributed equally to this work. doi: 10.1111/1462-2920.13086

[5] Becker, K.W., Lipp, J.S., Wörmer, L., Versteegh, G.J.M. and Hinrichs, K.-U. (2015). Rapid and simultaneous analysis of three molecular sea surface temperature proxies and application to sediments of the Sea of Marmara. Organic Geochemistry 85, 42-43. doi: 10.1016/j.orggeochem.2015.04.008

[4] Elling, F.J., Könneke, M., Lipp, J.S., Becker, K.W., Gagen, E.J., Hinrichs, K.-U. (2014). Effects of growth phase on the membrane lipid composition of the thaumarchaeon Nitrosopumilus maritimus and their implications for archaeal lipid distributions in the marine environment. Geochimica et Cosmochimica Acta 141, 579-597. doi: 10.1016/j.gca.2014.07.005

[3] Becker, K.W., Lipp, J.S., Zhu, C., Liu, X. and Hinrichs, K.-U. (2013). An improved analytical method for the analysis of archaeal and bacterial ether lipids. Organic Geochemistry 61, 34-44. doi: 10.1016/j.orggeochem.2013.05.007

[2] Zhu, C., Lipp, J.S., Wörmer, L., Becker, K.W., Schröder, J., Hinrichs, K.-U. (2013). Comprehensive glycerol ether lipid fingerprints through a novel reversed phase liquid chromatography-mass spectrometry protocol. Organic Geochemistry 65, 53-62. doi:  10.1016/j.orggeochem.2013.09.012

[1] Wooller, M.J., Pohlman, J.W., Gaglioti, B., Langdon, P., Jones, M.C., Walter-Anthony, K.M., Elvert, M., Becker, K.W., Hinrichs, K.-U. (2012). Reconstruction of past methane availability in an Arctic Alaska wetland indicates climate influenced methane release during the past ~12,000. Journal of Paleolimnology 48, 27-42. doi: 10.1007/s10933-012-9591-8

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