Jan Kofod Schjørring

Jan Kofod Schjørring

Professor, emeritus


  1. Published

    Biorefining in the prevailing energy and materials crisis: A review of sustainable pathways for biorefinery value chains and sustainability assessment methodologies

    Parajuli, R., Dalgaard, T., Jørgensen, U., Adamsen, A. P. S., Knudsen, M. T., Birkved, M., Gylling, M. & Schjoerring, Jan K., 2015, In: Renewable & Sustainable Energy Reviews. 43, p. 244-263 20 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  2. Published

    Biorefining of wheat straw: accounting for the distribution of mineral elements in pretreated biomass by an extended pretreatment–severity equation

    Le, D. M., Sørensen, H. R., Knudsen, N. O., Schjoerring, Jan K. & Meyer, A. S., 2014, In: Biotechnology for Biofuels. 7, 13 p., 141.

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. Published

    Biosphere-atmosphere interactions of ammonia with grasslands: experimental strategy and results from a new European initiative

    Sutton, M. A., Milford, C., Nemitz, E., Theobald, M. R., Hill, P. W., Fowler, D., Schjørring, J. K., Mattsson, M. E., Høier Nielsen, K., Husted, S., Erisman, J. W., Otjes, R., Hensen, A., Mosquera, J., Cellier, P., Loubet, B., David, M., Genermont, S., Neftel, A., Blatter, A. & 10 others, Herrmann, B., Jones, S. K., Horvath, L., Führer, E. C., Mantzanas, K., Koukoura, Z., Gallagher, M., Williams, P., Flynn, M. & Riedo, M., 2001, In: Plant and Soil. 228, p. 131-145 15 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  4. Published

    Breeding for dual-purpose wheat varieties using marker–trait associations for biomass yield and quality traits

    Malik, P. L., Janss, L., Nielsen, L. K., Borum, F., Jørgensen, H., Eriksen, B., Schjoerring, Jan K. & Rasmussen, S. K., 2019, In: Theoretical and Applied Genetics. 132, p. 3375-3398

    Research output: Contribution to journalJournal articleResearchpeer-review

  5. Published

    Can silicon in glacial rock flour enhance phosphorus availability in acidic tropical soil?

    Gunnarsen, Klara Cecilia, Schjoerring, Jan K., Gómez-Muñoz, B., de Neergaard, A. & Jensen, Lars Stoumann, 2022, In: Plant and Soil. 477, p. 241-258

    Research output: Contribution to journalJournal articleResearchpeer-review

  6. Published

    Carbon-nitrogen interactions in European forests and semi-natural vegetation - Part 1: Fluxes and budgets of carbon, nitrogen and greenhouse gases from ecosystem monitoring and modelling

    Flechard, C. R., Ibrom, A., Skiba, U. M., de Vries, W., van Oijen, M., Cameron, D. R., Dise, N. B., Korhonen, J. F. J., Buchmann, N., Legout, A., Simpson, D., Sanz, M. J., Aubinet, M., Loustau, D., Montagnani, L., Neirynck, J., Janssens, I. A., Pihlatie, M., Kiese, R., Siemens, J. & 52 others, Francez, A., Augustin, J., Varlagin, A., Olejnik, J., Juszczak, R., Aurela, M., Berveiller, D., Chojnicki, B. H., Dammgen, U., Delpierre, N., Djuricic, V., Drewer, J., Dufrene, E., Eugster, W., Fauvel, Y., Fowler, D., Frumau, A., Granier, A., Gross, P., Hamon, Y., Helfter, C., Hensen, A., Horvath, L., Kitzler, B., Kruijt, B., Kutsch, W. L., Lobo-do-Vale, R., Lohila, A., Longdoz, B., Marek, M., Matteucci, G., Mitosinkova, M., Moreaux, V., Neftel, A., Ourcival, J., Pilegaard, K., Pita, G., Sanz, F., Schjoerring, Jan K., Sebastia, M., Tang, Y. S., Uggerud, H., Urbaniak, M., van Dijk, N., Vesala, T., Vidic, S., Vincke, C., Weidinger, T., Zechmeister-Boltenstern, S., Butterbach-Bah, K., Nemitz, E. & Sutton, M. A., 2020, In: Biogeosciences. 17, 6, p. 1583-1620 38 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  7. Published

    Challenges in quantifying biosphere-atmosphere exchange of nitrogen species

    Sutton, M. A., Nemitz, E., Erisman, J. W., Beier, C., Bahl, K. B., Cellier, P., Vries, W. D., Cotrufo, F., Skiba, U., Marco, C. D., Jones, S., Laville, P., Soussana, J. F., Loubet, B., Twigg, M., Famulari, D., Whitehead, J., Gallagher, N. W., Neftel, A., Flechard, C. R. & 27 others, Herrmann, B., Calanca, P. L., Schjoerring, Jan K., Daemmgen, U., Horvath, L., Tang, Y. S., Emmett, B. A., Tietema, A., Peñuelas, J., Kesik, D., Brueggemann, N., Pilegaard, K., Vesala, T., Campbell, C. L., Olesen, J. E., Dragosits, U., Theobald, M. R., Levy, P., Mobbs, D. C., Milne, R., Viovy, N., Vuichard, N., Smith, J. U., Smith, P., Bergamaschi, P., Fowler, D. & Reis, S., 2007, In: Environmental Pollution. 150, 1, p. 125-139 15 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  8. Published

    Characteristics of ammonia emission from barley plants

    Mattsson, M. & Schjoerring, Jan K., 1996, In: Plant Physiology and Biochemistry. 34, p. 691-695 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  9. Published

    Cisgenic barley for animal feed

    Holme, I., Dionisio, G., Brinch-Pedersen, H., Vincze, E., Borg, S., Lange, M., Holm, P. B., Schjoerring, Jan K., Kichey, T. M. R., Jahn, T. P., Sandøe, Peter, Lassen, J., Gylling, M., Madsen, K. H., Haastrup, M., Eriksen, L. & Hjortsholm, K., 2009.

    Research output: Contribution to conferenceConference abstract for conferenceResearch

  10. Published

    Cisgenic overexpression of cytosolic glutamine synthetase improves nitrogen utilization efficiency in barley and prevents grain protein decline under elevated CO2

    Gao, Y., de Bang, T. C. & Schjoerring, Jan K., Jul 2019, In: Plant Biotechnology Journal. 17, 7, p. 1209-1221

    Research output: Contribution to journalJournal articleResearchpeer-review

  11. Published

    Cloning, characterization and expression analysis of tonoplast intrinsic proteins and glutamine synthetase in ryegrass(Lolium perenne L.)

    Nord-Larsen, P. H., Kichey, T. M. R., Jahn, T. P., Jensen, C. S., Nielsen, K. K., Hegelund, J. N. & Schjoerring, Jan K., 2009, In: Plant Cell Reports. 28, 10, p. 1549-1562 14 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  12. Published

    Comparative Metabolomics and Molecular Phylogenetics of Melon (Cucumis melo, Cucurbitaceae) Biodiversity

    Moing, A., Allwood, J. W., Aharoni, A., Baker, J., Beale, M. H., Ben-Dor, S., Biais, B., Brigante, F., Burger, Y., Deborde, C., Erban, A., Faigenboim, A., Gur, A., Goodacre, R., Hansen, T. H., Jacob, D., Katzir, N., Kopka, J., Lewinsohn, E., Maucourt, M. & 16 others, Meir, S., Miller, S., Mumm, R., Oren, E., Paris, H. S., Rogachev, I., Rolin, D., Saar, U., Schjoerring, Jan K., Tadmor, Y., Tzuri, G., de Vos, R. C. H., Ward, J. L., Yeselson, E., Hall, R. D. & Schaffer, A. A., 2020, In: Metabolites. 10, 3, 26 p., 121.

    Research output: Contribution to journalJournal articleResearchpeer-review

  13. Published

    Competition between uptake of ammonium and potassium in barley and Arabidopsis roots: molecular mechanisms and physiological consequences

    Hoopen, F. T., Cuin, T. A., Pedas, P., Hegelund, J. N., Shabala, S., Schjoerring, Jan K. & Jahn, T. P., 2010, In: Journal of Experimental Botany. 61, 9, p. 2303-2315 13 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  14. Published

    Competition for inorganic N in mixtures of white clover and ryegrass

    Høgh-Jensen, H. & Schjoerring, Jan K., 1996.

    Research output: Contribution to conferencePaperResearch

  15. Published

    Components of the nitrate transport and assimilatory systems of barley are both nitrogen responsive and diurnally regulated

    Plett, D. C., Thomsen, H. C., Schjoerring, Jan K. & Garnett, T. P., 2017, Proceedings Book: XVIII International Plant Nutrition Colloquium with Boron and Manganese Satellite Meetings. Carstensen, A., Laursen, K. H. & Schjoerring, J. K. (eds.). University of Copenhagen, p. 550-551 2 p.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

  16. Published

    Concentration of mineral elements in wheat (Triticum aestivum L.) straw: genotypic differences and consequences for enzymatic saccharification

    Murozuka, E., de Bang, T. C., Frydenvang, Jens, Lindedam, J., Laursen, Kristian Holst, Bruun, Sander, Magid, Jakob & Schjoerring, Jan K., 2015, In: Biomass & Bioenergy. 75, p. 134-141 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  17. Published

    Contrasting effects of nicotianamine synthase knockdown on zinc and nickel tolerance and accumulation in the zinc/cadmium hyperaccumulator Arabidopsis halleri

    Cornu, J., Deinlein, U., Hoereth, S., Braun, M., Schmidt, H., Weber, M., Persson, Daniel Pergament, Husted, Søren, Schjoerring, Jan K. & Clemens, S., 2015, In: New Phytologist. 206, 2, p. 738-750 13 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  18. Published

    Contribution of different grass species to plant-atmosphere ammonia exchange in intensively managed grassland

    Mattsson, M. E., Herrmann, B., Jones, S., Neftel, A., Sutton, M. A. & Schjoerring, Jan K., 2009, In: Biogeosciences. 6, 1, p. 59-66 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  19. Published

    Cytosolic glutamine synthetase: a target for improvement of crop nitrogen use efficiency?

    Thomsen, H. C., Eriksson, U. D., Møller, I. S. & Schjoerring, Jan K., 2014, In: Trends in Plant Science. 19, 10, p. 656-663 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  20. Published

    Cytosolic glutamine synthetase (GS1): posttranslational regulation and role in nitorgen remobilization from leaves of non-transgenic and GS1-overexpressing oilseed rape plants

    Schjoerring, Jan K., Möllers, C. & Finnemann, J., 2001, Ikke angivet. Horst, W. J., Schenk, M. K., Bürkert, A., Claassen, N., Flessa, H., Frommmer, W. B., Goldbach, H., Olfs. H. -W., Römheld, V., Sattelmacher, B., Schmidhalter, U., Schubert, S., Wirén, N. V. & Wittenmayer, L. (eds.). Kluwer Academic Publishers, p. 120-121 2 p.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

  21. Published

    Cytosolic glutamine synthetase Gln1;2 is the main isozyme contributing to GS1 activity and can be up-regulated to relieve ammonium toxicity

    Guan, M., de Bang, T. C., Pedersen, Carsten & Schjoerring, Jan K., 2016, In: Plant Physiology. 171, 3, p. 1921-1933 13 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  22. Published

    DNMARK: Danish Nitrogen Mitigation Assessment: Research and Know-how for a Sustainable, Low-Nitrogen Food Production

    Dalgaard, T., Brock, S., Hansen, B., Hasler, B., Hertel, O., Hutchings, N. J., Jacobsen, Brian H., Jensen, Lars Stoumann, Kjeldsen, C., Kronvang, B., Olesen, J. E., Schjoerring, Jan K., Sigsgaard, T., Graversgaard, M., Hashemi, F., Turner, K., Vejre, Henrik, de Vries, W. & Wiborg, I. A., 2020, Just Enough Nitrogen: Perspectives on how to get there for regions with too much and too little nitrogen. Sutton, M. A., Mason, K. E., Bleeker, A., Hicks, W. K., Masso, C., Raghuram, N., Reis, S. & Bekunda, M. (eds.). Springer, p. 363-376 14 p.

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

  23. Published
  24. Published

    Diagnosing latent manganese deficiency: Photosystem II instability during manganese deficiency

    Pedas, P., Schmidt, S. B., Laursen, Kristian Holst, Jensen, Poul Erik, Hebbern, C. A., Haldrup, Anna, Schjoerring, Jan K. & Husted, Søren, 2008. 1 p.

    Research output: Contribution to conferenceConference abstract for conferenceResearch

  25. Published

    Differential Mn efficiency in barley genotypes is related to differences in Mn uptake capacity in the low Mn concentration range

    Pedas, P., Jahn, T. P., Schjoerring, Jan K., Holm, Peter Engelund & Husted, Søren, 2005, Plant nutrition for food security, human health and environmental protection. Li, C. J. & al., E. (eds.). Tsinghua University Press, p. 296-297 2 p.

    Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearch

  26. Published

    Differential capacity for high-affinity manganese uptake contributes to differences between barley genotypes in tolerance to low manganese availability

    Pedas, P., Hebbern, C. A., Schjoerring, Jan K., Holm, Peter Engelund & Husted, Søren, 2005, In: Plant Physiology. 139, 3, p. 1411-1420 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  27. Published

    Dinitrogen fixation in white clover grown in pure stand and mixture with ryegrass estimated by the immobilized 15N isotope dilution method

    Vanman Jørgensen, F., Jensen, E. S. & Schjoerring, Jan K., 1999, In: Plant and Soil. 208, p. 293-305 13 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  28. Published

    Dynamic and steady-state responses of inorganic nitrogen pools and NH3 exchange in leaves of Lolium perenne and Bromus erectus to changes in root nitrogen supply

    Mattsson, M. & Schjoerring, Jan K., 2002, In: Plant Physiology. 128, 2, p. 742-750 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  29. Published

    Dynamic interactions between root NH4+ influx and long-distance N translocation in rice: insights into feedback processes

    Kronzucker, H. J., Schjoerring, Jan K., Erner, Y., Kirk, G. J. D., Siddiqi, M. Y. & Glass, A. D. M., 1998, In: Plant and Cell Physiology. 39, 12, p. 1287-1293 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  30. Published

    Dynamics of ammonia exchange with cut grassland: strategy and implementation of the GRAMINAE integrated experiment

    Sutton, M. A., Nemitz, E., Theobald, M. R., Milford, C., Dorsey, J. R., Gallagher, M. W., Hensen, A., Jongejean, P. A. C., Erisman, J. W., Mattsson, M. E., Schjørring, J. K., Cellier, P., Loubet, B., Roche, R., Neftel, A., Herrmann, B., Jones, S. K., Lehman, B. E., Horvath, L., Weidinger, T. & 4 others, Rajkai, K., Burkhardt, J., Löpmeier, F. J. & Daemmgen, U., 2009, In: Biogeosciences. 6, 3, p. 309-331 23 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  31. Published

    Dynamics of ammonia exchange with cut grassland: synthesis of results and conclusions of the GRAMINAE Integrated Experiment

    Sutton, M. A., Nemitz, E., Milford, C., Campbell, C., Erisman, J. W., Hensen, E., Cellier, P., David, M., Loubet, B., Personne, E., Schjørring, J. K., Mattsson, M. E., Dorsey, J. R., Gallagher, M. W., Horvath, L., Weidinger, T., Meszaros, R., Dämmgen, U., Neftel, A., Herrmann, B. & 3 others, Lehman, B. E., Flechard, C. & Burkhardt, J., 2009, In: Biogeosciences. 6, 12, p. 2907-2934 28 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  32. Published

    Effect of NO3- supply on N metabolism of potato plants (Solanum tuberosum L.) with special focus on the tubers

    Mäck, G. & Schjoerring, Jan K., 2002, In: Plant, Cell and Environment. 25, 8, p. 999-1009 11 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  33. Published

    Effective strategies to diagnose and correct manganese deficiency in cereals

    Husted, Søren, Schmidt, Sidsel Birkelund, Pedas, P. R., Jensen, Poul Erik, Laursen, Kristian Holst & Schjoerring, Jan K., 2017, Proceedings Book: XVIII International Plant Nutrition Colloquium with Boron and Manganese Satellite Meetings. Carstensen, A., Laursen, K. H. & Schjoerring, J. K. (eds.). University of Copenhagen, p. 939-940 2 p.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

  34. Published

    Effects of ammonium toxicity on nitrogen metabolism and elemental profile of cucumber plants

    Roosta, H. & Schjoerring, Jan K., 2007, In: Journal of Plant Nutrition. 30, 10-12, p. 1933-1951 19 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  35. Published

    Effects of elevated atmospheric CO2 on physiology and yield of wheat (Triticum aestivum L.): a meta-analytic test of current hypotheses

    Wang, L., Feng, Z. & Schjoerring, Jan K., 2013, In: Agriculture, Ecosystems & Environment. 178, p. 57-63 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  36. Published

    Effects of nitrate and potassium on ammonium toxicity in cucumber plants

    Roosta, H. & Schjoerring, Jan K., 2008, In: Journal of Plant Nutrition. 31, 7, p. 1270-1283 14 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  37. Published

    Effects of silicon on the activities of defense-related enzymes in cucumber inoculated with Pseudoperonospora cubensis

    Yu, Y., Schjoerring, Jan K. & Du, X., 2011, In: Journal of Plant Nutrition. 34, 2, p. 243-257 15 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  38. Published

    Elevated atmospheric CO2 decreases the ammonia compensation point of barley plants

    Wang, L., Pedas, P., Eriksson, U. D. & Schjoerring, Jan K., 2013, In: Journal of Experimental Botany. 64, 10, p. 2713-2724 12 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  39. Published

    Elevated nicotianamine levels in Arabidopsis halleri roots play a key role in zinc hyperaccumulation

    Deinlein, U., Weber, M., Schmidt, H., Rensch, S., Trampczynska, A., Hansen, Thomas Hesselhøj, Husted, Søren, Schjoerring, Jan K., Talke, I. N., Krämer, U. & Clemens, S., 2012, In: Plant Cell. 24, 2, p. 708-723 16 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  40. Published

    Elevated phosphorus impedes manganese acquisition by barley plants

    Pedas, P., Husted, Søren, Skytte, K. & Schjoerring, Jan K., 2011, In: Frontiers in Plant Science. 2, 37, 12 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  41. Published

    Emission af ammoniak fra planter

    Husted, Søren & Schjoerring, Jan K., 1997, In: Tidsskrift for Landoekonomi. 184, p. 233-240 8 p.

    Research output: Contribution to journalJournal articleResearch

  42. Published

    Enhancing Protein Recovery in Green Biorefineries by Lignosulfonate-Assisted Precipitation

    la Cour, R., Schjoerring, Jan K. & Jørgensen, H., Dec 2019, In: Frontiers in Sustainable Food Systems. 3, p. 1-9 112.

    Research output: Contribution to journalJournal articleResearchpeer-review

  43. Published

    Et dansk planteforskningsnetværk for afhjælpning af mikronæringsstofmangel i human ernæring

    Holm, P. B., Schjoerring, Jan K., Rasmussen, S. K. & Cvitanich, C., 2009, In: Biozoom. 1, p. 9-11 3 p.

    Research output: Contribution to journalJournal articleResearch

  44. Published

    Extensive metabolic cross-talk in melon fruit revealed by spatial and developmental combinatorial metabolomics

    Moing, A., Aharoni, A., Biais, B., Rogachev, I., Meir, S., Brodsky, L., Allwood, J. W., Erban, A., Dunn, W. B., Kay, L., Koning, S. D., Vos, R. C. H. D., Jonker, H., Mumm, R., Deborde, C., Maucourt, M., Bernillon, S., Gibon, Y., Hansen, T. H., Husted, S. & 5 others, Goodacre, R., Kopka, J., Schjoerring, Jan K., Rolin, D. & Hall, R. D., 2011, In: New Phytologist. 190, 3, p. 683-696 14 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  45. Published

    External nitrogen input affects pre- and post-harvest cell wall composition but not the enzymatic saccharification of wheat straw

    Baldwin, L. A., Glazowska, S. E., Mravec, Jozef, Fangel, J. U., Zhang, H., Felby, C., Willats, W. G. T. & Schjoerring, Jan K., 2017, In: Biomass & Bioenergy. 98, p. 70-79 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  46. Published

    Foliar application of zinc sulphate and zinc EDTA to wheat leaves: differences in mobility, distribution, and speciation

    Doolette, C. L., Read, T., Li, C., Scheckel, K. G., Donner, E., Kopittke, P. M., Schjoerring, Jan K. & Lombi, E., 2018, In: Journal of Experimental Botany. 69, 18, p. 4469-4481 13 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  47. Published

    Foliar nitrogen application in wheat: the effects on grain N content, recovery of fertilizer and the response of cytosolic glutamine synthetase

    Møller, I. S., Kichey, T. M. R., Ingvordsen, C. H. & Schjoerring, Jan K., 2009, The proceedings of the International Plant Nutrition Colloquium XVI. Department of Plant Sciences, University of California, Davis, 5 p.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

  48. Published

    Foliar nitrogen application in wheat: Response of cytosolic glutamine synthetase and effects on grain N content

    Møller, I. S., Kichey, T. M. R., Ingvordsen, C. H. & Schjoerring, Jan K., 2009.

    Research output: Contribution to conferencePosterResearch

  49. Published

    Foliar-applied manganese and phosphorus in deficient barley: Linking absorption pathways and leaf nutrient status

    Arsic, M., Persson, D. P., Schjoerring, Jan K., Thygesen, Lisbeth Garbrecht, Lombi, E., Doolette, C. L. & Husted, Søren, 2022, In: Physiologia Plantarum. 174, 4, 15 p., e13761.

    Research output: Contribution to journalJournal articleResearchpeer-review

  50. Published

    Functions of macronutrients

    Hawkesford, M., Horst, W., Kichey, T. M. R., Lambers, H., Schjoerring, Jan K., Møller, I. S. & White, P., 2012, Marschers's mineral nutrition of higher plants. Marschner, P. (ed.). 3 ed. Elsevier, p. 135-189 55 p.

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearchpeer-review

ID: 4226215