Jan Kofod Schjørring, D.Sc., Ph.D.

Research output

Research output per year 1995 2008 2009 2019

• 170 Journal article
• 40 Article in proceedings
• 19 Conference abstract for conference
• 17 Book chapter
• 47 More
  • 9 Conference abstract in proceedings
  • 8 Poster
  • 7 Book
  • 6 Paper
  • 6 Conference abstract in journal
  • 4 Compendium/lecture notes
  • 4 Editorial
  • 1 Ph.D. thesis
  • 1 Comment/debate
  • 1 Review

Research output per year

Research output per year

Search results

• 2008

  Gene expression, cellular localisation and function of glutamine synthetase isozymes in wheat (Triticum aestivum L.)

  Bernard, S. M., Møller, A. L. B., Dionisio, G., Kichey, T., Jahn, T. P., Dubois, F., Baudo, M., Lopes, M. S., Tercé-Laforgue, T., Foyer, C. H., Parry, M. A. J., Forde, B. G., Araus, J. L., Hirel, B., Schjørring, J. K. & Habash, D. Z., 2008, In: Plant Molecular Biology. 67, 1-2, p. 89-105 17 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  126 Citations (Scopus)

• Glutamine synthetase isoforms in wheat and barley: targets for improving nitrogen use efficiency

  Kichey, T., Jahn, T. P., Hirel, B., Habash, D. Z. & Schjørring, J. K., 2008, In: Physiologia Plantarium. 3, p. 189 1 p.

  Research output: Contribution to journal › Conference abstract in journal › Research

• HvlRT1,a Mn₂₊transport protein contributing to Mn efficiency

  Pedas, P., Fuglsang, A. T., Jahn, T. P., Schjørring, J. K., Ytting, C. K. & Husted, S., 2008, In: Physiologia Plantarium. 3, p. 219 1 p.

  Research output: Contribution to journal › Conference abstract in journal › Research

• Improved Quality and Disease Resistance in Cereal Crops (iKORN) - A Strategic Research Initiative

  Rasmussen, S., Andersen, S. B., Backes, G. M., Brinch-Pedersen, H., Eriksen, L., Haldrup, H., Hjortholm, K., Holm, P. B., Jahn, T. P., Jahoor, A., Justesen, A. F., Jørgensen, L. N., Schjørring, J. K., Spliid, N. H., Thordal-Christensen, H. & Torp, A. M., 2008. 1 p.

  Research output: Contribution to conference › Conference abstract for conference › Research

• Improved Quality and Disease Resistance in Cereal Crops (iKORN) - A Strategic Research Initiative

  Rasmussen, S., Andersen, S. B., Backes, G. M., Brinch-Pedersen, H., Eriksen, L., Haldrup, H., Hjortholm, K., Holm, P. B., Jahn, T. P., Jahoor, A., Justesen, A. F., Jørgensen, L. N., Schjørring, J. K., Spliid, N. H., Thordal-Christensen, H. & Torp, A. M., 2008, Triticeae genomics for the advancement of essential European crops. p. 134 1 p.

  Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research

• Jord, vand og planter: kursus 250021

  Borggaard, O. K., Hansen, S., Holm, P. E., Husted, S., Jensen, C. R., Petersen, J. C. T. & Schjørring, J. K., 2008, Department of Basic Sciences and Environment, University of Copenhagen. 279 p.

  Research output: Book/Report › Compendium/lecture notes

• Manganese efficiency in barley: identification and characterization of the metal ion transporter HvIRT1

  Pedas, P., Ytting, C. K., Fuglsang, A. T., Jahn, T. P., Schjørring, J. K. & Husted, S., 2008, In: Plant Physiology. 148, 1, p. 455-466 12 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  136 Citations (Scopus)

• Metallothioneins - What Are Their Physiological Functions in Barley?

  Hegelund, J. N., Schiller, M., Husted, S. & Schjørring, J. K., 2008.

  Research output: Contribution to conference › Poster › Research

• Metallothioneins - what are their physiological roles in barley?

  Schiller, M., Hegelund, J. N., Husted, S. & Schjørring, J. K., 2008, In: Physiologia Plantarium. 3, p. 216 1 p.

  Research output: Contribution to journal › Conference abstract in journal › Research

• Multi-elemental fingerprinting by semi-quantitative ICP-MS and chemometrics

  Laursen, K. H., Hansen, T. H., Persson, D. O., Schjørring, J. K. & Husted, S., 2008. 1 p.

  Research output: Contribution to conference › Conference abstract for conference › Research

• Root carbon enrichment alleviates ammonium toxicity in cucumber plants

  Roosta, H. & Schjørring, J. K., 2008, In: Journal of Plant Nutrition. 31, 5, p. 941-958 18 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  38 Citations (Scopus)

• Special topics in potassium and magnesium research

  Cakmak, I. & Schjørring, J. K., 2008, In: Physiologia Plantarum : An International Journal for Plant Biology. 133, 4, p. 623 1 p.

  Research output: Contribution to journal › Editorial

  5 Citations (Scopus)

• The effects of the loss of TIP1;1 and TIP1;2 aquaporins in Arabidopsis thaliana

  Schüssler, M. D., Alexandersson, E., Bienert, G. P., Kichey, T. M. R., Laursen, K. H., Johanson, U., Kjellbom, P., Schjørring, J. K. & Jahn, T. P., 2008, In: Plant Journal. 56, 5, p. 756-767 12 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  53 Citations (Scopus)

• Zinc, iron, sulphur and phosphorous interrelationships in the barley grain analyzed by SEC-ICP-MS and LC-ESI-MS

  Persson, D. O., Hansen, T. H., Laursen, K. H., Schjørring, J. K. & Husted, S., 2008. 1 p.

  Research output: Contribution to conference › Conference abstract for conference › Research

• Zinc and iron distribution and speciation in the cereal grain

  Schjørring, J. K., Persson, D. O., Lombi, E., Hansen, T. H., Laursen, K., Schiller, M., Hegelund, J. N. & Husted, S., 2008, In: Physiologia Plantarium. 3, p. 217 1 p.

  Research output: Contribution to journal › Conference abstract in journal › Research

• Zinc biofortification of cereals: problems and solutions

  Palmgren, M., Clemens, S., Williams, L. E., Krämer, U., Borg, S., Schjørring, J. K. & Sanders, D., 2008, In: Trends in Plant Science. 13, 9, p. 464-473 10 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  299 Citations (Scopus)
• 2007

  A semiquantitative ICP-MS based method for high-throughput analysis of soil and plant samples

  Laursen, K., Hansen, T. H., Persson, D. O., Schjørring, J. K. & Husted, S., 2007. 1 p.

  Research output: Contribution to conference › Conference abstract for conference › Research

• 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 othersHerrmann, B., Calanca, P. L., Schjørring, J. 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 journal › Journal article › Research › peer-review

  145 Citations (Scopus)

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

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

  Research output: Contribution to journal › Journal article › Research › peer-review

  75 Citations (Scopus)

• HvIRT1, a Mn²⁺ transport protein contributing to Mn²⁺ efficiency

  Pedas, P., Fuglsang, A. T., Jahn, T. P., Schjørring, J. K., Ytting, C. K. & Husted, S., 2007. 1 p.

  Research output: Contribution to conference › Conference abstract for conference › Research

• Jord, vand og planter: kursus 250021

  Borggaard, O. K., Hansen, S., Holm, P. E., Husted, S., Jensen, C. R., Petersen, C. & Schjørring, J. K., 2007, København: Institut for Grundvidenskab. 289 p.

  Research output: Book/Report › Compendium/lecture notes

• Specific aquaporins facilitate the diffusion of hydrogen peroxide across membranes

  Bienert, G. P., Møller, A. L. B., Kristiansen, K. A., Schulz, A., Møller, I. M., Schjørring, J. K. & Jahn, T. P., 2007, In: Journal of Biological Chemistry. 282, 2, p. 1183-1192 10 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  834 Citations (Scopus)

• Suppression of C-hordein synthesis in barley by antisense constructs results in a more balanced amino acid composition

  Lange, M., Vincze, E., Wieser, H., Schjørring, J. K. & Holm, P. B., 2007, In: Journal of Agricultural and Food Chemistry. 55, 15, p. 6074-6081 8 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  39 Citations (Scopus)
• 2006

  Antisense reduction of serine hydroxymethyltransferase results in diurnal displacement of NH4+ assimilation in leaves of Solanum tuberosum

  Schjørring, J. K., Mäck, G., Nielsen, K. H., Husted, S., Suzuki, A., Driscoll, S., Boldt, R. & Bauwe, H., 2006, In: Plant Cell. 45, 1, p. 71-82 12 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  20 Citations (Scopus)

• Grain tissue localization and speciation analysis of P, Fe and Zn in rice and barley

  Persson, D. O., Stenbæk, A., Neergaard, E. D., Hansen, T. H., Schjørring, J. K. & Husted, S., 2006. 1 p.

  Research output: Contribution to conference › Poster › Research

• Grain tissue localization and speciation analysis of P, Fe and Zn in rice and barley

  Persson, D. P., Stenbæk, A., Neergaard, E. D., Hansen, T. H., Schjørring, J. K. & Husted, S., 2006. 1 p.

  Research output: Contribution to conference › Poster › Research

• Membrane transport of hydrogen peroxide

  Bienert, G. P., Schjørring, J. K. & Jahn, T. P., 2006, In: BBA General Subjects. 1758, 8, p. 994-1003 10 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  699 Citations (Scopus)

• Multi-elemental speciation analysis of barley genotypes differing in tolerance to cadmium toxicity using SEC-ICP-MS and ESI-TOF-MS

  Persson, D. O., Hansen, T. H., Holm, P. E., Schjørring, J. K., Hansen, H. C. B., Nielsen, J., Cakmak, I. & Husted, S., 2006, In: Journal of Analytical Atomic Spectrometry. 21, 10, p. 996-1005 10 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  37 Citations (Scopus)
• 2005

  A cation exchange resin method for measuring long-term potassium release rates from soil

  Askegaard, M., Hansen, H. C. B. & Schjørring, J. K., 2005, In: Plant and Soil. 271, 1-2, p. 63-74 12 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  15 Citations (Scopus)

• Ammonium homeostasis and nitrogen use efficiency controlled by transport and assimilation

  Jahn, T. P., Møller, A. L. B., Hoopen, F. T., Bienert, G. P., Hegelund, J. N., Holm, L. M., Zeuthen, T., Klærke, D. A., Mohsin, B., Kühlbrandt, W. & Schjørring, J. K., 2005, Plant nutrition for food security, human health and environmental protection. Li, C. P. & al., E. (eds.). Tsinghua University Press, p. 204-205 2 p.

  Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research

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

  Pedas, P., Hebbern, C. A., Schjørring, J. K., Holm, P. E. & Husted, S., 2005, In: Plant Physiology. 139, 3, p. 1411-1420 10 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  61 Citations (Scopus)

• 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., Schjørring, J. K., Holm, P. E. & Husted, S., 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 proceeding › Conference abstract in proceedings › Research

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

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

  Research output: Contribution to journal › Journal article › Research › peer-review

  63 Citations (Scopus)

• Glufosinate treatment of weeds results in ammonia emission by plants

  Manderscheid, R., Schaaf, S., Mattsson, M. & Schjørring, J. K., 2005, In: Agriculture, Ecosystems & Environment. 109, 1-2, p. 129-140 12 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  25 Citations (Scopus)

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

  Husted, S., Thomsen, M. U., Mattsson, M. & Schjørring, J. K., 2005, In: Plant and Soil. 268, 1-2, p. 309-317 9 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  28 Citations (Scopus)

• Molecular physiology of ammonium transport and assimilation and the role of aquaammoniaporins

  Jahn, T. P., Møller, A. L. B., Hegelund, J. N., Hoopen, F. T., Bienert, G. P., Dionisi, G., Nielsen, K. H. & Schjørring, J. K., 2005. 1 p.

  Research output: Contribution to conference › Poster › Research

• New functions: two candidate aquaporins suggested to be involved in the transport of H2O2

  Bienert, G. P., Schüssler, M. D., Schjørring, J. K. & Jahn, T. P., 2005, The 4th Int. Conf. on Aquaporins. Abstract book. SPA, p. 102 1 p.

  Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research

• New functions: two candidate aquaporins suggested to be involved in the transport of H2O2

  Bienert, G. P., Schüssler, M. D., Schjørring, J. K. & Jahn, T. P., 2005, Programme, abstracts, participants. Thordal-Christensen, H. & Kangasjärvi, J. (eds.). Center for Skov, Landskab og Planlægning/Københavns Universitet, p. 33 1 p.

  Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research

• NH3 and NH4+ permeability in aquaporin-expressing Xenopus oocytes

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

  Research output: Contribution to journal › Journal article › Research › peer-review

  • Aquaporins 100%
  • Xenopus 82%
  • Oocytes 72%
  • Permeability 66%
  • pH Value 32%
  196 Citations (Scopus)

• Relative addition rate technique as a tool for alleviating ammonium toxicity in cucumber (Cucumis sativus L., cv. Styx) plants

  Roosta, H. & Schjørring, J. K., 2005, Plant nutrition for food security, human health and environmental protection. Li, C. P. & al., E. (eds.). Tsinghua University Press, p. 274-275 2 p.

  Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research

• The effect of new strategies of nitrogen application on nitrogen uptake and biomass production in potatoes (Solanum tuberosum) during growth.

  Lærke, P. E., Plauborg, F., Schjørring, J. K. & Andersen, M. N., 2005, Plant nutrition for food security, human health and environmental protection. Li, C. J. & al., E. (eds.). Tsinghua University Press, p. 282-283 2 p.

  Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research

• The mechanisms of differential manganese efficiency in barley genotypes

  Husted, S., Hebbern, C. A., Pedas, P., Holst, K. & Schjørring, J. K., 2005, Plant nutrition for food security, human health and environmental protection. Li, C. P. & al., E. (eds.). Tsinghua University Press, p. 98-99 2 p.

  Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Research

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

  Husted, S. & Schjørring, J. 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 proceeding › Conference abstract in proceedings › Research

• Vand og planter

  Schjørring, J. K. & Jahn, T. P., 2005, Vand - Temahæfte 2005. Lund (ansvh. redaktør), S., Bjerno, G. L., Thostrup, L. & Aabo, C. (eds.). København: Center for Skov, Landskab og Planlægning/Københavns Universitet, p. 6-7 2 p.

  Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Communication
• 2004

  Aquaporin homologues in plants and mammals transport ammonia

  Jahn, T. P., Møller, A. L. B., Zeuthen, T., Holm, L. M., Klærke, D. A., Mohsin, B., Kühlbrandt, W. & Schjørring, J. K., 2004, In: FEBS Letters. 574, 1-3, p. 31-36 6 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  250 Citations (Scopus)
• 2003

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

  Husted, S., Holm, P. E., Hansen, H. C. B. & Schjørring, J. K., 2003, Ikke angivet. Gesellschaft deutscher chemiker, p. 167 1 p.

  Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research

• Plantevækstfaktorer og afgrødefysiologi: Teoretiske øvelser

  Hansen, S., Husted, S., Jensen, C. R., Neergaard, A. D., Petersen, C. & Schjørring, J. K., 2003, Frederiksberg: Samfundslitteratur. 156 p.

  Research output: Book/Report › Book › Education

• Plantevækstfaktorer og Afgrødefysiologi B: Vejledning til eksperimentelle øvelser

  Bruun, S., Hansen, S., Hebbern, C. A., Jahn, T. P., Jensen, C. R., Jensen, L. S., Luxhøi, J., Nielsen, K. H., Petersen, C. & Schjørring, J. K., 2003, 1-108. Frederiksberg: Samfundslitteratur, 108 p.

  Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Communication

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

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

  Research output: Contribution to journal › Journal article › Research › peer-review

  818 Citations (Scopus)

• Senescence-induced changes in apoplastic and bulk tissue ammonia concentrations of ryegrass leaves

  Mattsson, M. & Schjørring, J. K., 2003, In: New Phytologist. 160, 3, p. 489-499 11 p.

  Research output: Contribution to journal › Journal article › Research › peer-review

  44 Citations (Scopus)