M
Markus Greule
Researcher at Heidelberg University
Publications - 64
Citations - 1349
Markus Greule is an academic researcher from Heidelberg University. The author has contributed to research in topics: Stable isotope ratio & Methane. The author has an hindex of 18, co-authored 60 publications receiving 1048 citations. Previous affiliations of Markus Greule include Max Planck Society & Goethe University Frankfurt.
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Evidence for methane production by saprotrophic fungi
Katharina Lenhart,Michael Bunge,Stefan Ratering,Thomas R. Neu,Ina Schüttmann,Markus Greule,Claudia Kammann,Sylvia Schnell,Christoph Müller,Christoph Müller,Holger Zorn,Frank Keppler +11 more
TL;DR: It is demonstrated that saprotrophic fungi produce methane without the involvement of methanogenic archaea, suggesting a common methane formation pathway in fungal cells under aerobic conditions and identifying fungi as another source of methane in the environment.
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Exogenous addition of H2 for an in situ biogas upgrading through biological reduction of carbon dioxide into methane
Daniel Girma Mulat,Freya Mosbæk,Alastair James Ward,Daniela Polag,Markus Greule,Frank Keppler,Jeppe Lund Nielsen,Anders Feilberg +7 more
TL;DR: This inhibition mechanism underlines the importance of carefully regulating the H2 addition rate and gas retention time to the CO2 production rate, H2-uptake rate and growth of hydrogenotrophic methanogens in order to achieve higher CH4 content without the accumulation of acetate and other VFA.
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Carbon, hydrogen and oxygen stable isotope ratios of whole wood, cellulose and lignin methoxyl groups of Picea abies as climate proxies
TL;DR: This work considers eight different proxies in order to discover the most suitable wood component and stable isotope ratio to provide the strongest climate signal in Picea abies in a southeastern Alpine region (Trentino, Italy).
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The stable isotope signature of methane emitted from plant material under UV irradiation
I. Vigano,Thomas Röckmann,Rupert Holzinger,A. van Dijk,Frank Keppler,Markus Greule,Willi A. Brand,Heike Geilmann,H. van Weelden +8 more
TL;DR: In this article, the source isotope signatures of the methane emitted from a range of dry natural plant leaves and structural compounds were analyzed and shown that they also emit CH4 with different δ13C value.
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Improved rapid authentication of vanillin using δ13C and δ2H values
Markus Greule,Luisa Dana Tumino,Tatjana Kronewald,Uwe Hener,Jürgen Schleucher,Armin Mosandl,Frank Keppler +6 more
TL;DR: In this paper, stable isotope analysis of vanillin has been used for detecting fraudulent adulteration using stable carbon and hydrogen values of the vanillin molecule and vanillin methoxyl groups.