Researcher Portfolio

 
   

Muhr, Jan

Tree Reserve Carbon Pools, Dr. J. Muhr, Department Biogeochemical Processes, Prof. S. E. Trumbore, Max Planck Institute for Biogeochemistry, Max Planck Society  

 

Researcher Profile

 
Position: Tree Reserve Carbon Pools, Dr. J. Muhr, Department Biogeochemical Processes, Prof. S. E. Trumbore, Max Planck Institute for Biogeochemistry, Max Planck Society
Researcher ID: https://pure.mpg.de/cone/persons/resource/persons62494

External references

 
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Publications

 
  (1 - 25 of 27)
 : Helm, J., Muhr, J., Hilman, B., Kahmen, A., Schulze, E. D., Trumbore, S. E., Herrera-Ramirez, D., & Hartmann, H. (2023). Carbon dynamics in long-term starving poplar trees—the importance of older carbohydrates and a shift to lipids during survival. Tree Physiology, tpad135. doi:10.1093/treephys/tpad135. [PubMan] : Herrera-Ramirez, D., Hartmann, H., Römermann, C., Trumbore, S. E., Muhr, J., Maracahipes-Santos, L., Brando, P., Silvério, D., Huang, J., Kuhlmann, I., & Sierra, C. A. (2023). Anatomical distribution of starch in the stemwood influences carbon dynamics and suggests storage-growth trade-offs in some tropical trees. Journal of Ecology, 111(11), 2532-2548. doi:10.1111/1365-2745.14209. [PubMan] : Helm, J., Salomón, R. L., Hilman, B., Muhr, J., Knohl, A., Steppe, K., Gibon, Y., Cassan, C., & Hartmann, H. (2023). Differences between tree stem CO2 efflux and O2 influx rates cannot be explained by internal CO2 transport or storage in large beech trees. Plant, Cell and Environment, 46(9), 2680-2693. doi:10.1111/pce.14614. [PubMan] : Helm, J., Hartmann, H., Göbel, M., Hilman, B., Herrera, D. A., & Muhr, J. (2021). Low-cost chamber design for simultaneous CO2 and O2 flux measurements between tree stems and the atmosphere. Tree Physiology, 41(9), 1767-1780. doi:10.1093/treephys/tpab022. [PubMan] : Hilman, B., Muhr, J., Helm, J., Kuhlmann, I., Schulze, E. D., & Trumbore, S. E. (2021). The size and the age of the metabolically active carbon in tree roots. Plant, Cell and Environment, 44(8), 2522-2535. doi:10.1111/pce.14124. [PubMan] : Herrera-Ramirez, D., Sierra, C., Römermann, C., Muhr, J., Trumbore, S. E., Silvério, D., Brando, P. M., & Hartmann, H. (2021). Starch and lipid storage strategies in tropical trees relate to growth and mortality. New Phytologist, 230(1), 139-154. doi:10.1111/nph.17239. [PubMan] : D’Andrea, E., Rezaie, N., Prislan, P., Gričar, J., Muhr, J., Collalti, A., & Matteucci, G. (2020). Frost and drought: Effects of extreme weather events on stem carbon dynamics in a Mediterranean beech forest. Plant, Cell and Environment, 43(10), 2365-2379. doi:10.1111/pce.13858. [PubMan] : Herrera-Ramirez, D., Muhr, J., Hartmann, H., Roemermann, C., Trumbore, S. E., & Sierra, C. (2020). Probability distributions of nonstructural carbon ages and transit times provide insights into carbon allocation dynamics of mature trees. New Phytologist, 26(5), 1299-1311. doi:10.1111/nph.16461. [PubMan] : Schwab, V. F., Nowak, M., Elder, C. D., Trumbore, S. E., Xu, X., Gleixner, G., Lehmann, R., Pohnert, G., Muhr, J., Kuesel, K., & Totsche, K. U. (2019). 14C-free carbon is a major contributor to cellular biomass in geochemically distinct groundwater of shallow sedimentary bedrock aquifers. Water Resources Research, 55(3), 2104-2121. doi:10.1029/2017WR022067. [PubMan] : Schwab, V. F., Nowak, M., Trumbore, S. E., Xu, X., Gleixner, G., Muhr, J., Kuesel, K., & Totsche, K. U. (2019). Isolation of individual saturated fatty acid methyl esters derived from groundwater phospholipids by preparative high-pressure liquid chromatography for compound-specific radiocarbon analyses. Water Resources Research, 55(3), 2521-2531. doi:10.1029/2018WR024076. [PubMan] : Schwab, V. F., Nowak, M., Elder, C. D., Trumbore, S. E., Xu, X., Gleixner, G., Lehmann, R., Pohnert, G., Muhr, J., Kuesel, K., & Totsche, K. U. (2019). 14C-free carbon is a major contributor to cellular biomass in geochemically distinct groundwater of shallow sedimentary bedrock aquifers. Water Resources Research, 55(3), 2104-2121. doi:10.1029/2017WR022067. [PubMan] : D'Andrea, E., Rezaie, N., Battistelli, A., Gavrichkova, O., Kuhlmann, I., Matteucci, G., Moscatello, S., Proietti, S., Scartazza, A., Trumbore, S. E., & Muhr, J. (2019). Winter's bite: beech trees survive complete defoliation due to spring late-frost damage by mobilizing old C reserves. New Phytologist, 224(2), 625-631. doi:10.1111/nph.16047. [PubMan] : Muhr, J., Trumbore, S. E., Higuchi, N., & Kunert, N. (2018). Living on borrowed time – Amazonian trees use decade‐old storage carbon to survive for months after complete stem girdling. New Phytologist, 220(1), 111-120. doi:10.1111/nph.15302. [PubMan] : Hilman, B., Muhr, J., Trumbore, S. E., Kunert, N., Carbone, M. S., Yuval, P., Wright, S. J., Moreno, G., Pérez‑Priego, O., Migliavacca, M., Carrara, A., Grünzweig, J. M., Osem, Y., Weiner, T., & Angert, A. (2017). Comparison of CO2 and O2 fluxes demonstrate retention of respired CO2 in tree stems from a range of tree species. Biogeosciences, 16(1), 177-191. doi:10.5194/bg-16-177-2019. [PubMan] : Muhr, J., Messier, C., Delagrange, S., Trumbore, S. E., Xu, X., & Hartmann, H. (2016). How fresh is maple syrup? Sugar maple trees mobilize carbon stored several years previously during early springtime sap-ascent. New Phytologist, 209(4), 1410-1416. doi:10.1111/nph.13782. [PubMan] : Nowak, M., Beulig, F., von Fischer, J., Muhr, J., Küsel, K., & Trumbore, S. E. (2015). Autotrophic fixation of geogenic CO2 by microorganisms contributes to soil organic matter formation and alters isotope signatures in a wetland mofette. Biogeosciences, 12(3), 7169-7183. doi:10.5194/bg-12-7169-2015. [PubMan] : Trumbore, S. E., Czimczik, C. I., Sierra, C., Muhr, J., & Xu, X. (2015). Non-structural carbon dynamics and allocation relate to growth rate and leaf habit in California oaks. Tree Physiology, 35(11), 1206-1222. doi:10.1093/treephys/tpv097. [PubMan] : Vicca, S., Bahn, M., Estiarte, M., van Loon, E. E., Vargas, R., Alberti, G., Ambus, P., Arain, M. A., Beier, C., Bentley, L. P., Borken, W., Buchmann, N., Collins, S. L., de Dato, G., Dukes, J. S., Escolar, C., Fay, P., Guidolotti, G., Hanson, P. J., Kahmen, A., Kröel-Dulay, G., Ladreiter-Knauss, T., Larsen, K. S., Lellei-Kovacs, E., Lebrija-Trejos, E., Maestre, F. T., Marhan, S., Marshall, M., Meir, P., Miao, Y., Muhr, J., Niklaus, P. A., Ogaya, R., Peñuelas, J., Poll, C., Rustad, L. E., Savage, K., Schindlbacher, A., Schmidt, I. K., Smith, A. R., Sotta, E. D., Suseela, V., Tietema, A., van Gestel, N., van Straaten, O., Wan, S., Weber, U., & Janssens, I. A. (2014). Can current moisture responses predict soil CO2 efflux under altered precipitation regimes? A synthesis of manipulation experiments. Biogeosciences, 11(11), 2991-3013. doi:10.5194/bg-11-2991-2014. [PubMan] : Ahrens, B., Reichstein, M., Borken, W., Muhr, J., Trumbore, S. E., & Wutzler, T. (2014). Bayesian calibration of a soil organic carbon model using delta14C measurements of soil organic carbon and heterotrophic respiration as joint constraints. Biogeosciences, 11(8), 2147-2168. doi:10.5194/bg-11-2147-2014. [PubMan] : Krüger, I., Muhr, J., Hartl-Meier, C., Schulz, C., & Borken, W. (2014). Age determination of coarse woody debris with radiocarbon analysis and dendrochronological cross-dating. European Journal of Forest Research, 133, 931-939. doi:10.1007/s10342-014-0810-x. [PubMan] : Muhr, J., Angert, A., Negrón-Juárez, R. I., Muñoz, W. A., Kraemer, G., Chambers, J. Q., & Trumbore, S. E. (2013). Carbon dioxide emitted from live stems of tropical trees is several years old. Tree Physiology, 33, 743-752. doi:10.1093/treephys/tpt049. [PubMan] : Hanke, A.., Cerli, C., Muhr, J., Borken, W., & Kalbitz, K. (2013). Redox control on carbon mineralization and dissolved organic matter along a chronosequence of paddy soils. European Journal of Soil Science, 64, 476-487. doi:10.1111/ejss.12042. [PubMan] : Trumbore, S. E., Angert, A., Kunert, N., Muhr, J., & Chambers, J. Q. (2013). What's the flux? Unraveling how CO2 fluxes from trees reflect underlying physiological processes. New Phytologist, 197(2), 353-355. doi:10.1111/nph.12065. [PubMan] : Angert, A., Muhr, J., Juarez, R. N., Alegria Munoz, W., Kraemer, G., Ramirez Santillan, J., Barkan, E., Mazeh, S., Chambers, J. Q., & Trumbore, S. E. (2012). Internal respiration of Amazon tree stems greatly exceeds external CO2 efflux. Biogeosciences, 9, 4979-4991. doi:10.5194/bg-9-4979-2012. [PubMan] : Angert, A., Muhr, J., Juarez, R., Munoz, W., Kraemer, G., Santillan, J., Chambers, J., & Trumbore, S. E. (2012). The contribution of respiration in tree stems to the Dole effect. Biogeosciences, 9, 4037-4044. doi:10.5194/bg-9-4037-2012. [PubMan]