Helle Jakobe Martens

Helle Jakobe Martens

Associate Professor

ORCID: 0000-0002-3011-4557

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  1. Published

    Bioimaging Techniques Reveal Foliar Phosphate Uptake Pathways and Leaf Phosphorus Status

    Arsic, M., Tougaard, Stine Le, Persson, D. P., Martens, Helle Jakobe, Doolette, C. L., Lombi, E., Schjoerring, Jan K. & Husted, Søren, 1 Aug 2020, In: Plant Physiology. 183, 4, p. 1472-1483 12 p.

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

  2. Published

    Colwellia echini sp. nov., an agar- and carrageenan-solubilizing bacterium isolated from sea urchin

    Christiansen, L., Bech, P. K., Schultz-Johansen, M., Martens, Helle Jakobe & Stougaard, P., 2018, In: International Journal of Systematic and Evolutionary Microbiology. 68, 2, p. 687-691 5 p.

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

  3. Published

    Proteomic and microscopic approaches in understanding mechanisms of shell-loosening of shrimp (Pandalus borealis) induced by high pressure and protease

    Dang, T. T., Jessen, F., Martens, Helle Jakobe, Gringer, N., Olsen, Karsten, Bøknæs, N. & Orlien, Vibeke, 2019, In: Food Chemistry. 289, p. 729-738 10 p.

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

  4. Published

    CO2 refixation is higher in leaves of woody species with high mesophyll and stomatal resistances to CO2 diffusion

    Eckert, D., Martens, Helle Jakobe, Gu, L. & Jensen, A. M., 1 Aug 2021, In: Tree Physiology. 41, 8, p. 1450-1461 12 p.

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

  5. Published

    Directionality of Plasmodesmata-Mediated Transport in Arabidopsis Leaves Supports Auxin Channeling

    Gao, C., Liu, X., De Storme, N., Jensen, K. H., Xu, Q., Yang, J., Liu, X., Chen, S., Martens, Helle Jakobe, Schulz, Alexander & Liesche, J., 2020, In: Current Biology. 30, 10, p. 1970-1977 8 p.

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

  6. Published

    Transfer of the cytochrome P450-dependent dhurrin pathway from Sorghum bicolor into Nicotiana tabacum chloroplasts for light-driven synthesis

    Gnanasekaran, Thiyagarajan, Karcher, D., Nielsen, A. J. Z., Martens, Helle Jakobe, Ruf, S., Kroop, X., Olsen, C. E., Motawie, Mohammed Saddik, Pribil, Mathias, Møller, Birger Lindberg, Bock, R. & Jensen, Poul Erik, 2016, In: Journal of Experimental Botany. 67, 8, p. 2495-2506 12 p.

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

  7. Published

    Upgrading the Nutritional Value of PKC Using a Bacillus subtilis Derived Monocomponent β-Mannanase

    Gomez-Osorio, L. M., Nielsen, J. U., Martens, Helle Jakobe & Wimmer, R., 1 Jan 2022, In: Molecules. 27, 2, 14 p., 563.

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

  8. Published

    Serratia inhibens sp. nov., a new antifungal species isolated from potato (Solanum tuberosum)

    Hennessy, Rosanna Catherine, Dichmann, S. I., Martens, Helle Jakobe, Zervas, A. & Stougaard, P., 17 Jun 2020, In: International Journal of Systematic and Evolutionary Microbiology. 70, 7, p. 4204-4211 8 p., 004270.

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

  9. Published

    Oxidative stress associated with rootstock-scion interactions in pear/quince combinations during early stages of graft development

    Irisarri, P., Binczycki, P., Errea, P., Martens, Helle Jakobe & Pina, A., 2015, In: Journal of Plant Physiology. 176, p. 25-35 11 p.

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

  10. Published

    Influence of temperature and ageing of ovules and pollen on reproductive success in Trifolium repens L.

    Jakobsen, H. B. & Martens, Helle Jakobe, 1994, In: Annals of Botany. 74, p. 493-501 9 p.

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

  11. Published

    Accumulation of metabolites during seed development in Trifolium repens L.

    Jakobsen, H. B., Martens, Helle Jakobe & Lyshede, O. B., 1994, In: Annals of Botany. 74, p. 409-415 7 p.

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

  12. Published

    Identification of an algal xylan synthase indicates that there is functional orthology between algal and plant cell wall biosynthesis

    Jensen, J. K., Busse-Wicher, M., Poulsen, C. P., Fangel, J. U., Smith, P. J., Yang, J., Pena, M., Dinesen, M. H., Martens, Helle Jakobe, Melkonian, M., Wong, G. K., Moremen, K. W., Wilkerson, C. G., Scheller, H. V., Dupree, P., Ulvskov, Peter, Urbanowicz, B. R. & Harholt, J., 2018, In: New Phytologist. 218, 3, p. 1049-1060

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

  13. Published

    Multi-species colloidosomes by surface-modified lactic acid bacteria with enhanced aggregation properties

    Jiang, X., Martens, Helle Jakobe, Shekarforoush, E., Muhammed, Musemma Kedir, Whitehead, K. A., Arneborg, Nils & Risbo, Jens, 2022, In: Journal of Colloid and Interface Science. 622, p. 503-514

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

  14. Published

    Changes in physicochemical properties and volatile compounds of roselle (Hibiscus sabdariffa l.) calyx during different drying methods

    Juhari, N. H., Martens, Helle Jakobe & Petersen, Mikael Agerlin, 2021, In: Molecules. 26, 20, 14 p., 6260.

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

  15. Published

    Active plasma membrane P-type H+-ATPase reconstituted into nanodiscs is a monomer

    Justesen, B. H., Hansen, R. W., Martens, Helle Jakobe, Theorin, L., Palmgren, Michael, Martinez, Karen Laurence, Pomorski, Thomas Guenther & Fuglsang, Anja Thoe, 2013, In: Journal of Biological Chemistry. 288, 37, p. 26419-26429 11 p.

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

  16. Published

    Changes in texture, microstructure and nutritional quality of carrot slices during blanching and freezing

    Kidmose, U. & Martens, Helle Jakobe, 1999, In: Journal of the Science of Food and Agriculture. 79, p. 1747-1753 7 p.

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

  17. Published

    Characterization of a dynamic metabolon producing the defense compound dhurrin in sorghum

    Laursen, Tomas, Borch-Jensen, J., Baden, C. K., Bavishi, K., Torta, F., Martens, Helle Jakobe, Silvestro, D., Hatzakis, Nikos, Wenk, M. R., Dafforn, T. R., Olsen, C. E., Motawie, Mohammed Saddik, Hamberger, B. R., Møller, Birger Lindberg & Bassard, J. A., 2016, In: Science (New York, N.Y.). 354, 6314, p. 890-893 4 p.

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

  18. Published

    Symplasmic transport and phloem loading in gymnosperm leaves

    Liesche, J., Martens, Helle Jakobe & Schulz, Alexander, 2011, In: Protoplasma. 248, 1, p. 181-190 10 p.

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

  19. Published

    Direct Comparison of Leaf Plasmodesma Structure and Function in Relation to Phloem-Loading Type

    Liesche, J., Gao, C., Binczycki, P., Andersen, S. R., Rademaker, H., Schulz, Alexander & Martens, Helle Jakobe, 2019, In: Plant Physiology. 179, 4, p. 1768-1778 11 p.

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

  20. Published

    Developmental changes in cytosolic coupling between epidermis cells as visualized by photoactivation of fluorescein

    Liu, X., Martens, Helle Jakobe & Schulz, Alexander, 2006. 1 p.

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

  21. Published

    Impaired Cuticle Functionality and Robust Resistance to Botrytis cinerea in Arabidopsis thaliana Plants With Altered Homogalacturonan Integrity Are Dependent on the Class III Peroxidase AtPRX71

    Lorrai, R., Francocci, F., Gully, K., Martens, Helle Jakobe, De Lorenzo, G., Nawrath, C. & Ferrari, S., 16 Aug 2021, In: Frontiers in Plant Science. 12, 18 p., 696955.

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

  22. Published

    An integrated microstructural, sensory and instrumental approach to describe potato texture

    Martens, Helle Jakobe & Thybo, A. K., 2000, In: Lebensmittel - Wissenschaft und Technologie. 33, 7, p. 471-482 12 p.

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

  23. Published

    The microstructure of plant foods: a qualitative and quantitative analysis

    Martens, Helle Jakobe, 1999, Copenhagen: The Royal Veterinary and Agricultural University, Department of Plant Biology. 50 p.

    Research output: Book/Report › Ph.D. thesis › Research

  24. Published

    Quantitative microscopy by use of image analysis

    Martens, Helle Jakobe, 1997, Dina notat. Ringgaard Kristensen, A. (ed.). 62 ed. Den Kongelige Veterinær- og Landbohøjskole, Institut for Husdyrbrug og Husdyrsundhed, Dinas Forskerskole, p. 19 1 p.

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

  25. Published

    The use of quantitative microscopy to characterize processed carrot texture

    Martens, Helle Jakobe & Kidmose, U., 1998, In: Polish Journal of Food and Nutrition Sciences. 7/48 (2S), p. 37S-42S 6 p.

    Research output: Contribution to journal › Journal article › Research

  26. Published

    Bioimaging of plant cell-to-cell communication using transgenic tobacco lines

    Martens, Helle Jakobe & Schulz, Alexander, 2002, Ikke angivet. The Royal Veterinary and Agricultural University (KVL), 1 p.

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

  27. Published

    Non-invasive investigation into plasmodesmal regulation using novel confocal laser scanning microscopic techniques and caged compounds

    Martens, Helle Jakobe, Hansen, M. & Schulz, Alexander, 2002. 1 p.

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

  28. Published

    Phloem loading: functionality of plasmodesmata between mesophyll cells and sieve element/companion cell complexes

    Martens, Helle Jakobe & Schulz, Alexander, 2003. 1 p.

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

  29. Published

    Bioimaging of intra- and intercellular ER-membrane flow

    Martens, Helle Jakobe & Schulz, Alexander, 2005, Plant Biotech Denmark. Plant Biotech Denmark, KVL, Department of Plant Biology, p. 61 1 p.

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

  30. Published

    Quantification of plasmodesmatal endoplasmic reticulum coupling between sieve elements and companion cells using fluorescence redistribution after photobleaching

    Martens, Helle Jakobe, Roberts, A. G., Oparka, K. J. & Schulz, Alexander, 2006, In: Plant Physiology. 142, 2, p. 471-480 10 p.

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

  31. Published

    Endomembrane coupling between sieve element and companion cell

    Martens, Helle Jakobe, Roberts, A. G., Oparka, K. & Schulz, Alexander, 2006. 1 p.

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

  32. Published

    Trafficking through plasmodesmata: the communication junctions in plants

    Martens, Helle Jakobe, Pina, A., Liu, X. & Schulz, Alexander, 2006. 1 p.

    Research output: Contribution to conference › Poster › Research

  33. Published

    Photoactivation of caged probes - microinjection without injection

    Martens, Helle Jakobe, Hansen, M. & Schulz, Alexander, 2001. 2 p.

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

  34. Published

    Development of a technique for non-invasive monitoring of intracellular phosphate changes in plant cells

    Martens, Helle Jakobe, Gu, H., Ytting, C. K., Fuglsang, Anja Thoe & Schulz, Alexander, 2008. 1 p.

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

  35. Published

    Hvad taler planterne om?

    Martens, Helle Jakobe, 2005, In: Naturens Verden. 5, p. 16-21 6 p.

    Research output: Contribution to journal › Journal article › Communication

  36. Published

    Photoactivation and other fluorescence techniques for studies on graft compatibility

    Martens, Helle Jakobe, 2008. 1 p.

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

  37. Published

    Lab manual for plant anatomy

    Martens, Helle Jakobe & Schulz, Alexander, 2005, Frederiksberg: Samfundslitteratur. 46 p.

    Research output: Book/Report › Compendium/lecture notes › Education

  38. Published

    Intra- and intercellular trafficking via the ER-membrane studied by FRAP

    Martens, Helle Jakobe & Schulz, Alexander, 2004, Scientific program and abstratcs. p. 130 1 p.

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

  39. Published

    Development of a technique for non-invasive monitoring of intracellular phosphate changes in plant cells

    Martens, Helle Jakobe, Gu, H., Ytting, C. K., Fuglsang, Anja Thoe & Schulz, Alexander, 2008. 1 p.

    Research output: Contribution to conference › Poster › Research

  40. Published

    Bioimaging of phloem loading: connectivity of plasmodesmata between mesophyll cells and sieve element/companion cell complexes

    Martens, Helle Jakobe & Schulz, Alexander, 2003. 1 p.

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

  41. Published

    Caged probes – a novel tool in studying the physiological control of plasmodesmal gating

    Martens, Helle Jakobe, Hansen, M. & Schulz, Alexander, 2003. 1 p.

    Research output: Contribution to conference › Poster › Research

  42. Published

    Scanning electron microscopy image in: Food Chemistry 68 (2000),191–199. Hydroperoxide formation in rapeseed oil encapsulated in a glassy food model as influenced by hydrophilic and lipophilic radicals. Authors: V. Orlien, AB Andersen, T Sinkko, LH Skibsted

    Martens, Helle Jakobe, 2000

    Research output: Non-textual form › Sound/Visual production (digital) › Research › peer-review

  43. Published

    Characterization of Top Leader Elongation in Nordmann Fir (Abies nordmanniana)

    Martens, Helle Jakobe, Sorensen, S., Burow, Meike & Veierskov, Bjarke, 2019, In: Journal of Plant Growth Regulation. 38, 4, p. 1354-1361

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

  44. Published

    Development of the strophiole in seeds of white clover (Trifolium repens L.)

    Martens, Helle Jakobe, Jakobsen, H. & Lyshede, O., 1995, In: Seed Science Research. 5, p. 171-176

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

  45. Published

    Endoplasmic reticulum - A functional pathway for cell-to-cell trafficking in plants.

    Martens, Helle Jakobe, 2008. 1 p.

    Research output: Contribution to conference › Poster › Research

  46. Published

    Lab Manual for Plant Anatomy

    Martens, Helle Jakobe & Schulz, Alexander, 2007, Faculty of Life Sciences, University of Copenhagen, p. 1-10, 10 p.

    Research output: Working paper › Research

  47. Published

    Mikroskopbilleder til: Schulz A. Nok se, men ikke røre, KVL Beretning

    Martens, Helle Jakobe, 2001

    Research output: Non-textual form › Sound/Visual production (digital) › Communication

  48. Published

    Caged probes: a novel tool in studying symplasmic transport in plant tissues

    Martens, Helle Jakobe, Hansen, M. & Schulz, Alexander, 2004, In: Protoplasma. 223, 1, p. 63-66 4 p.

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

  49. Published

    Quantification of Symplasmic Phloem Loading Capacity with Live-Cell Microscopy

    Martens, Helle Jakobe, Gao, C. & Liesche, J., 2019, Phloem: Methods and Protocols. Liesche, J. (ed.). Vol. 2014. p. 215-221 7 p. (Methods in Molecular Biology).

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

  50. Published

    Mikroskopbilleder til: Schulz A.Bioimaging- et vindue til cellernes liv. KVL Forskning

    Martens, Helle Jakobe, 2004

    Research output: Non-textual form › Sound/Visual production (digital) › Communication

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