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- Research Groups + Molecular Biogeochemistry + Theoretical Ecosystem Ecology + Soil Biogeochemistry + Plant Allocation + Landscape Processes + Tall Tower Atmospheric Gas Measurements + Emeritus Group Prof. Dr. E.-D. Schulze
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Juliane Helm
PhD student
room: B1.003
Phone: +49 3641 576137
Email: jhelm@bgc-jena.mpg.de
Max Planck Institute for Biogeochemistry
Hans Knoell Str. 10, 07745 Jena
Research gate
| Since 01/2018 | PhD student Department of Biogeochemical Processes, MPI-BGC, Jena, Germany & external PhD student at the University of Basel (https://ppe.duw.unibas.ch/en/helm/). |
| Member of International Max Planck Research School for Global Biogeochemical Cycles (IMPRS-gBGC). | |
| 2017 | Eurofins Agraranalytik Deutschland GmbH, Jena, Germany. |
| 2013 - 2016 | M.Sc. Evolution, Ecology and Systematics, Friedrich-Schiller-University Jena, Germany. |
| 2014 | Research stay at the Groningen Institute for Evolutionary Life Science (Plant Physiology Group), Groningen, Netherlands. |
| 2010 - 2013 | B.Sc. Biology, Friedrich-Schiller-University Jena, Germany. |
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Publications |
Hilman, B., Muhr, J., Helm, J., Kuhlmann, I., Schulze, E.-D., Trumbore, S. (2021). The size and the age of the metabolically active carbon in tree roots. Plant, Cell and Environment. https://doi.org/10.1111/pce.14124
Helm, J., Hartmann, H., Göbel, M., Hilman, B., Herrera Ramirez, D., Muhr, J. (2021). Low-cost chamber design for simultaneous CO2 and O2 flux measurements between tree stems and the atmosphere. Tree Physiology. https://doi.org/10.1093/treephys/tpab022
Helm, J., Dutoit, T., Saatkamp, A., Bucher, S.F., Leiterer, M., Römermann, C. (2018). Recovery of Mediterranean steppe vegetation after cultivation: legacy effects on plant composition, soil properties and functional traits. Applied Vegetation Science, 22(1), 71-84. https://doi.org/10.1111/avsc.12415
Reich, M., Aghajanzadeh, T., Helm, J., Parmar, S., Hawkesford, M., and De Kok, L. (2017). Chloride and sulfate salinity differently affect biomass, mineral nutrient composition and expression of sulfate transport and assimilation genes in Brassica rapa. Plant and Soil, 411, 319-332.
Eisenhauer, N., Wirsch, D., Cesarz, S., Craven, D., Dietrich, P., Friese, J., Helm, J., Hines, J., Schellenberg, M., Scherreiks, P., Schwarz, B., Uhe, C., Wagner, K., Steinauer, K. (2014). Organic textile dye improves the visual assessment of the bait-lamina test. Applied Soil Ecology, 82, 78–81.
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Presentations |
Helm, J., Hartmann, H., Hilman, B., Schulze, E-D., Trumbore, S., Muhr, J. (2021) Shift in respiratory substrate use towards lipid metabolism induced by stem girdling? Talk. GFOe virtual meeting.
Helm, J., Hartmann, H., Muhr, J. (2019) Coupled CO2 and O2 measurements indicate xylem transport of CO2 in tree stems. Poster. GFOe meeting Münster, DE.
Helm, J., Muhr, J., Gessler, A., Grams, T., Hilman, B., Steppe, K., Wittmann, C., Hartmann, H. (2019) Post-respiratory fate of CO2 in tree stems. Poster. EGU meeting Vienna, AT.
Helm, J., Hartmann, H., Trumbore, S., Muhr, J. (2018) A new field-applicable method for measuring stem respiration by combining CO2 and O2 sensors. Talk. GFOe meeting Vienna, AT.