Publications of F. Keppler

Anhäuser, T., Greule, M., Polag, D., Bowen, G. J. and Keppler, F.: Mean annual temperatures of mid-latitude regions derived from δ² H values of wood lignin methoxyl groups and its implications for paleoclimate studies, Science of the Total Environment, 574, 1276–1282, doi:10.1016/j.scitotenv.2016.07.189, 2017.

Riechelmann, D. F. C., Greule, M., Siegwolf, R. T. W., Anhäuser, T., Esper, J. and Keppler, F.: Warm season precipitation signal in δ2H values of wood lignin methoxyl groups from high elevation larch trees in Switzerland, Rapid Communications in Mass Spectrometry, 31(19), 1589–1598, doi:10.1002/rcm.7938, 2017.

Lenhart, K., Klintzsch, T., Langer, G., Nehrke, G., Bunge, M., Schnell, S. and Keppler, F.: Evidence for methane production by marine algae (Emiliana huxleyi) and its implication for the methane paradox in oxic waters, Biogeosciences, 13, 3163–3174, doi:10.5194/bg-13-3163-2016, 2016.

Riechelmann, D. F. C., Greule, M., Treydte, K., Esper , J. and Keppler, F.: Climate signals in δ¹³ of wood lignin methoxyl groups from high-elevation larch trees, Palaeogeography, Palaeoclimatology, Palaeoecology, 445, 60–71, doi:10.1016/j.palaeo.2016.01.001, 2016.

Greule, M., Mosandl, A., Hamilton, J. T. G. and Keppler, F.: Comment on Authenticity and Traceability of Vanilla Flavors by Analysis of Stable Isotopes of Carbon and Hydrogen, Journal of Agricultural and Food Chemistry, 63(21), 5305–5306, doi:10.1021/jf506172q, 2015.

Greule, M., Rossmann, A., Schmidt, H.-L., Mosandl, A. and Keppler, F.: A Stable Isotope Approach to Assessing Water Loss in Fruits and Vegetables during Storage, Journal of Agricultural and Food Chemistry, 63(7), 1974–1981, doi:10.1021/jf505192p, 2015.

Lenhart, K., Althoff, F., Greule, M. and Keppler, F.: Technical Note: Methionine, a precursor of methane in living plants, Biogeosciences, 12(6), 1907–1914, doi:10.5194/bg-12-1907-2015, 2015.

Lenhart, K., Weber, B., Elbert, W., Steinkamp, J., Clough, T., Crutzen, P., Pöschl, U. and Keppler, F.: Nitrous oxide and methane emissions from cryptogamic covers, Global Change Biology, 21(10), 3889–3900, doi:10.1111/gcb.12995, 2015.

Althoff, F., Benzing, K., Comba, P., McRoberts, C., Boyd, D. R., Greiner, S. and Keppler, F.: Abiotic methanogenesis from organosulphur compounds under ambient conditions, Nature Communications, 5, doi:10.1038/ncomms5205, 2014.

Polag, D., Krapf, L. C., Heuwinkel, H., Laukenmann, S., Lelieveld, J. and Keppler, F.: Stable carbon isotopes of methane for real- time process monitoring in anaerobic digesters, Engineering in Life Sciences, 14(2), 153–160, doi:10.1002/elsc.201200201, 2014.

Anhäuser, T., Sirocko, F., Greule, M., Esper, J. and Keppler, F.: D/H ratios of methoxyl groups of the sedimentary organic matter of Lake Holzmaar (Eifel, Germany): A potential palaeoclimate/-hydrology proxy, Geochimica et Cosmochimica Acta, 142, 39–52, doi:10.1016/j.gca.2014.08.001, 2014.

Horst, A., Holmstrand, H., Andersson, P., Thornton, B. F., Wishkerman, A., Keppler, F. and Gustafsson, O.: Stable bromine isotopic composition of methyl bromide released from plant matter, Geochimica et Cosmochimica Acta, 125, 186–195, doi:10.1016/j.gca.2013.10.016, 2014.

Keppler, F., Harper, D. B., Greule, M., Ott, U., Sattler, T., Schöler, H. F. and Hamilton, J. T. G.: Chloromethane release from carbonaceous meteorite affords new insight into Mars lander findings, Scientific Reports, 4, doi:10.1038/srep07010, 2014.

Nadalig, T., Greule, M., Bringel, F., Keppler, F. and Vuilleumier, S.: Probing the diversity of chloromethane-degrading bacteria by comparative genomics and isotopic fractionation, Frontiers in Microbiology, 5, doi:10.3389/fmicb.2014.00523, 2014.

Polag, D., Leiß, O. and Keppler, F.: Age dependent breath methane in the German population, Science of the Total Environment, 481, 582–587, doi:10.1016/j.scitotenv.2014.02.086, 2014.

Polag, D., Krapf, L. C., Heuwinkel, H., Laukenmann, S., Lelieveld, J. and Keppler, F.: Stable carbon isotopes of methane for real-time process monitoring in anaerobic digesters, Engineering in Life Sciences [online] Available from: http://hdl.handle.net/11858/00-001M-0000-0015-89FF-0, 2013.

Nadalig, T., Greule, M., Bringel, F., Vuilleumier, S. and Keppler, F.: Hydrogen and carbon isotope fractionation during degradation of chloromethane by methylotrophic bacteria, MicrobiologyOpen, 2(6), 893–900 [online] Available from: http://hdl.handle.net/11858/00-001M-0000-0015-8A01-F, 2013.

Polag, D., Heuwinkel, H., Laukenmann, S., Greule, M. and Keppler, F.: Evidence of anaerobic syntrophic acetate oxidation in biogas batch reactors by analysis of ¹³C carbon isotopes, Isotopes in Environmental and Health Studies, 49(3), 365–377 [online] Available from: http://hdl.handle.net/11858/00-001M-0000-0015-89A7-5, 2013.

Wuerfel, O., Greule, M., Keppler, F., Jochmann, M. A. and Schmidt, T. C.: Position-specific isotope analysis of the methyl group carbon in methylcobalamin for the investigation of biomethylation processes, Analytical and Bioanalytical Chemistry, 405(9), 2833–2841 [online] Available from: http://hdl.handle.net/11858/00-001M-0000-0014-C3B4-8, 2013.

Gori, Y., Wehrens, R., Greule, M., Keppler, F., Ziller, L., La Porta, N. and Camin, F.: Carbon, hydrogen and oxygen stable isotope ratios of whole wood, cellulose and lignin methoxyl groups of Picea abies as climate proxies, Rapid Communications in Mass Spectrometry, 27(1), 265–275 [online] Available from: http://hdl.handle.net/11858/00-001M-0000-0014-C3D2-4, 2013.