Jan Kofod Schjørring

Jan Kofod Schjørring

Professor, emeritus


  1. Published

    Modification of storage proteins in the barley grain increases endosperm zinc and iron under both normal and elevated atmospheric CO2

    Gao, Y., Persson, Daniel Pergament, Vincze, E. & Schjoerring, Jan K., 2022, In: Physiologia Plantarum. 174, 1, 15 p., e13624.

    Research output: Contribution to journalJournal articleResearchpeer-review

  2. Published

    Interactions between uptake of amino acids and inorganic nitrogen in wheat plants

    Gioseffi, E., de Neergaard, Andreas & Schjoerring, Jan K., 2012, In: Biogeosciences. 9, p. 1509-1518 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. Published

    Inorganic nitrogen absorption by plant roots: physiology and molecular biology

    Glass, A. D. M., Erner, Y., Hunt, T., Kronzucker, H. J., Okamoto, M., Rawat, S., Silim, S., Schjoerring, Jan K., Siddiqi, M. Y., Vidmar, J. J., Wang, M. Y. & Zhuo, D., 1999, Ikke angivet. Gissel-Nielsen, G. & Jensen, A. (eds.). Humana Press, p. 1-16 16 p.

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

  4. Published

    Silicon affects seed development and leaf macrohair formation in Brachypodium distachyon

    Glazowska, S. E., Murozuka, E., Persson, Daniel Pergament, Castro, P. H. A. R. F. & Schjoerring, Jan K., 2018, In: Physiologia Plantarum. 163, 2, p. 231-246 16 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  5. Published

    The impact of silicon on cell wall composition and enzymatic saccharification of Brachypodium distachyon

    Glazowska, S. E., Baldwin, L. A., Mravec, Jozef, Bukh, C., Hansen, Thomas Hesselhøj, Jensen, M. M., Fangel, J. U., Willats, W. G. T., Glasius, M., Felby, C. & Schjoerring, Jan K., 20 Jun 2018, In: Biotechnology for Biofuels. 11, 18 p., 171.

    Research output: Contribution to journalJournal articleResearchpeer-review

  6. 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

  7. Published

    Peering into the separate roles of root and shoot cytosolic glutamine synthetase 1;2 by use of grafting experiments in Arabidopsis

    Guan, M. & Schjoerring, Jan K., 2016, In: Plant Signaling & Behavior. 11, 11, 3 p., e124525.

    Research output: Contribution to journalJournal articleResearchpeer-review

  8. Published

    Two cytosolic glutamine synthetase isoforms play specific roles for seed germination and seed yield structure in Arabidopsis

    Guan, M., Møller, I. S. & Schjoerring, Jan K., 2015, In: Journal of Experimental Botany. Flowering Newsletter. 66, 1, p. 203-212 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  9. 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

  10. Published

    The source of inorganic nitrogen has distinct effects on cell wall composition in Brachypodium distachyon

    Głazowska, S., Baldwin, L., Mravec, Jozef, Bukh, C., Fangel, J. U., Willats, W. G. & Schjoerring, Jan K., 1 Nov 2019, In: Journal of Experimental Botany. 70, 21, p. 6461-6473

    Research output: Contribution to journalJournal articleResearchpeer-review

  11. Published

    Structural and chemical analysis of process residue from biochemical conversion of wheat straw (Triticum aestivum L.) to ethanol

    Hansen, M. A. T., Jørgensen, H., Laursen, Kristian Holst, Schjoerring, Jan K. & Felby, C., 2013, In: Biomass & Bioenergy. 56, p. 572-581 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  12. Published

    Reflectance measurement of canopy biomass and nitrogen status in wheat crops using normalized difference vegetation indices and partial least squares regression

    Hansen, P. M. & Schjoerring, Jan K., 2003, In: Remote Sensing of Environment. 86, 4, p. 542-553 12 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  13. Published

    Plantevækstfaktorer og afgrødefysiologi: Teoretiske øvelser

    Hansen, S., Husted, Søren, Jensen, C. R., de Neergaard, Andreas, Petersen, Carsten & Schjoerring, Jan K., 2003, Frederiksberg: Samfundslitteratur. 156 p.

    Research output: Book/ReportBookEducation

  14. Published

    Losses of essential mineral nutrients by polishing of rice differ among genotypes due to contrasting grain hardness and mineral distribution

    Hansen, Thomas Hesselhøj, Lombi, E., Fitzgerald, M., Laursen, Kristian Holst, Frydenvang, Jens, Husted, Søren, Boualaphanh, C., Resurreccion, A., Howard, D. L., Jonge, M. D. D., Paterson, D. & Schjoerring, Jan K., 2012, In: Journal of Cereal Science. 56, 2, p. 307-315 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  15. Published
  16. Published

    Micro-scaled high-throughput digestion of plant tissue samples for multi-elemental analysis

    Hansen, Thomas Hesselhøj, Laursen, Kristian Holst, Persson, Daniel Pergament, Pedas, P., Husted, Søren & Schjoerring, Jan K., 2009, In: Plant Methods. 5, 12, 11 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  17. Published

    Multielement plant tissue analysis using ICP spectrometry

    Hansen, Thomas Hesselhøj, de Bang, T. C., Laursen, Kristian Holst, Pedas, P., Husted, Søren & Schjoerring, Jan K., 2013, Plant mineral nutrients: methods and protocols. Maathuis, F. J. M. (ed.). Humana Press, p. 121-141 21 p. (Methods in Molecular Biology, Vol. 953).

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

  18. Published

    Uptake and utilization of atmospheric ammonia in three native Poaceae species: leaf conductances, composition of apoplastic solution and interactions with root nitrogen supply

    Hanstein, S., Mattsson, M., Jaeger, H. & Schjoerring, Jan K., 1999, In: New Phytologist. 141, p. 71-83 13 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  19. 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

  20. Published

    Genotypic differences in manganese efficiency: field experiments with winter barley (Hordeum vulgare L.)

    Hebbern, C. A., Pedas, P., Schjoerring, Jan K., Knudsen, L. & Husted, Søren, 2005, In: Plant and Soil. 272, 1-2, p. 233-244 12 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  21. Published

    Latent manganese deficiency increases transpiration in barley (Hordeum vulgare)

    Hebbern, C. A., Laursen, Kristian Holst, Ladegaard, A. H., Schmidt, Sidsel Birkelund, Pedas, P. R., Bruhn, D., Schjoerring, Jan K., Wulfsohn, D. & Husted, Søren, 2009, In: Physiologia Plantarum : An International Journal for Plant Biology. 135, 3, p. 307-316 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  22. Published

    An assessment of the biotechnological use of hemoglobin modulation in cereals

    Hebelstrup, K., Shah, J. K., Simpson, C., Schjoerring, Jan K., Mandon, J., Cristescu, S. M., Harren, F. J. M., Wagner, M., Mur, L. A. J. & Igamberdiev, A. U., 2014, In: Physiologia Plantarum. 150, 4, p. 593-603 11 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  23. Published

    Zinc fluxes into developing barley grains: use of stable Zn isotopes to separate root uptake from remobilization in plants with contrasting Zn status

    Hegelund, J. N., Pedas, P., Husted, Søren, Schiller, M. & Schjoerring, Jan K., 2012, In: Plant and Soil. 361, 1-2, p. 241-250 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  24. Published

    Barley metallothioneins: MT3 and MT4 are localized in the grain aleurone layer and show differential zinc binding

    Hegelund, J. N., Schiller, M., Kichey, T., Hansen, Thomas Hesselhøj, Pedas, P., Husted, Søren & Schjoerring, Jan K., 2012, In: Plant Physiology. 159, 3, p. 1125-1137 13 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  25. Published

    Metallothioneins - What Are Their Physiological Functions in Barley?

    Hegelund, J. N., Schiller, M., Husted, Søren & Schjoerring, Jan K., 2008.

    Research output: Contribution to conferencePosterResearch

  26. Published

    Transmembrane nine proteins in yeast and Arabidopsis affect cellular metal contents without changing vacuolar morphology

    Hegelund, J. N., Jahn, T. P., Bækgaard, L., Palmgren, Michael & Schjoerring, Jan K., 2010, In: Physiologia Plantarum : An International Journal for Plant Biology. 140, 4, p. 355-367 13 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  27. Published

    Leaf-atmosphere NH3 exchange of white clover (Trifolium repens L. ) in relation to mineral N nutrition and symbiotic N2 fixation

    Herrmann, B., Mattsson, M., Fuhrer, J. & Schjoerring, Jan K., 2002, In: Journal of Experimental Botany. 53, 366, p. 139-146 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  28. Published

    Vertical structure and diurnal variability of ammonia exchange potential within an intensively managed grass canopy

    Herrmann, B., Mattsson, M. E., Jones, S. K., Cellier, P., Milford, C., Sutton, M. A., Schjoerring, Jan K. & Neftel, A., 2009, In: Biogeosciences. 6, 1, p. 15-23 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  29. Published

    NH3 and NH4+ permeability in aquaporin-expressing Xenopus oocytes

    Holm, L. M., Jahn, T. P., Møller, A. L. B., Schjoerring, Jan K., Ferri, D., Klærke, Dan Arne & Zeuthen, Thomas, 2005, In: Pflügers Archiv: European Journal of Physiology. 450, 6, p. 415-428 14 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  30. 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

  31. 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

  32. 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

  33. Published

    On-line measurement of essential plant nutrient dynamics in the root medium using ICP-MS with an octopole research system

    Husted, Søren, Holm, Peter Engelund, Hansen, Hans Chr. Bruun & Schjoerring, Jan K., 2003, Ikke angivet. Gesellschaft deutscher chemiker, p. 167 1 p.

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

  34. Published

    A ¤critical experimental evaluation of methods for determination of NH4+ in plant tissue, xylem sap and apoplastic fluid

    Husted, Søren, Hebbern, C. A., Mattsson, M. & Schjoerring, Jan K., 2000, In: Physiologia Plantarum : An International Journal for Plant Biology. 109, p. 167-179 13 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  35. 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

  36. Published

    Ammonia flux between oilseed rape plants and the atmosphere in response to changes in leaf temperature, light intensity, and air humidity

    Husted, Søren & Schjoerring, Jan K., 1996, In: Plant Physiology. 112, p. 67-74 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  37. Published

    Teoretiske øvelser i Planternes Ernæring på kurset: Plantevækstfaktorer og afgrødefysiologi A & B

    Husted, Søren, Høgh-Jensen, H., Jensen, Lars Stoumann, Magid, Jakob, Mattsson, M., Mueller, T., Nielsen, N. E., Schjoerring, Jan K. & Wollenweber, B., 1996

    Research output: Book/ReportCompendium/lecture notesEducation

  38. Published

    Plantevækstfaktorer og afgrødefysiologi: teoretiske øvelser i planternes ernæring

    Husted, Søren, Høgh-Jensen, H., Jensen, Lars Stoumann, Magid, Jakob, Mattsson, M., Mueller, T., Nielsen, N. E. & Schjoerring, Jan K., 1997, København: Jordbrugsforlaget. 134 p.

    Research output: Book/ReportBookEducation

  39. Published

    Apoplastic pH and ammonium concentration in leaves of Brassica napus L.

    Husted, Søren & Schjoerring, Jan K., 1995, In: Plant Physiology. 109, p. 1453-1460 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  40. Published

    The analysis of ammonium in plant tissues

    Husted, Søren, Hebbern, C. A., Mattsson, M. & Schjoerring, Jan K., 2000, Nitrogen in a sustainable ecosystem from the cell to the plant. Martins-Loucão, M. A. & Lips, S. H. (eds.). Leiden: Backhuys Publishers, p. 287-290 4 p.

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  41. Published

    Influence of nitrogen and sulphur form on manganese acquisition by barley (Hordeum vulgare)

    Husted, Søren, Thomsen, M. U., Mattsson, M. & Schjoerring, Jan K., 2005, In: Plant and Soil. 268, 1-2, p. 309-317 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  42. Published

    Stomatal compensation points for ammonia in oilseed rape plants under field conditions

    Husted, Søren, Schjoerring, Jan K., Høier Nielsen, K., Nemitz, E. & Sutton, M. A., 2000, In: Agricultural and Forest Meteorology. 105, p. 371-383 13 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  43. Published

    Photorespiratory NH4+ production in leaves of wild-type and glutamine synthetase 2 antisense oilseed rape

    Husted, Søren, Mattsson, M., Möllers, C., Wallbraun, M. & Schjoerring, Jan K., 2002, In: Plant Physiology. 130, 2, p. 989-998 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  44. Published

    Ammonia compensation points in two cultivars of Hordeum vulgare L. during vegetative and generative growth

    Husted, Søren, Mattsson, M. & Schjoerring, Jan K., 1996, In: Plant, Cell and Environment. 19, p. 1299-1306 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  45. 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

  46. Published

    Bedre bestemmelse af plantetilgængeligt fosfor og mikronæringsstoffer i jord

    Husted, Søren & Schjoerring, Jan K., 2010, Plantekongres 2010: sammendrag af indlæg: 12-14 januar i Herning Kongrescenter. Dansk Landbrugsrådgivning, p. 75 1 p.

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

  47. Published

    The role of atomic spectrometry in plant science

    Husted, Søren, Persson, Daniel Pergament, Laursen, Kristian Holst, Hansen, Thomas Hesselhøj, Pedas, P., Schiller, M., Hegelund, J. N. & Schjoerring, Jan K., 2011, In: Journal of Analytical Atomic Spectrometry. 26, p. 52-79 28 p.

    Research output: Contribution to journalReviewResearchpeer-review

  48. Published

    The speciation of Zn, Fe, S and P in cereal grain tissue using LC-ICPMS and LC-ESIMS

    Husted, Søren, Persson, Daniel Pergament, Hansen, Thomas Hesselhøj & Schjoerring, Jan K., 2009. 1 p.

    Research output: Contribution to conferenceConference abstract for conferenceResearch

  49. Published

    Mikronæringsstoffernes fordeling og bindingsformer i kornkernen

    Husted, Søren, Persson, Daniel Pergament, Hansen, Thomas Hesselhøj & Schjoerring, Jan K., 2011, Plantekongres 2011: sammendrag af indlæg; 11-13 januar i Herning Kongrescenter. Videncentret for Landbrug, p. 68 1 p.

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

  50. Published

    The plant nutriome: High-throughput profiling of inorganic elements in plants

    Husted, Søren & Schjoerring, Jan K., 2005, Plant Biotech Denmark. The Royal Veterinary and Agricultural University, Department of Plant Biology, p. 10 1 p.

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

ID: 4226215