Helle Jakobe Martens

Helle Jakobe Martens

Associate Professor

ORCID: 0000-0002-3011-4557

Publication year:
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1 - 50 out of 75Page size: 50
  1. 1994
  2. 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

  3. 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

  4. 1995
  5. 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

  6. 1997

  7. Low frequency ultrasonics for texture measurements in cooked carrots (Daucus carota L.)

    Nielsen, M. & Martens, Helle Jakobe, 1997, In: Journal of Food Science. 62, 6, p. 1167-1175 9 p.

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

  8. 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

  9. 1998
  10. Published

    Low frequency ultrasonics for texture measurements in carrots (Daucus carota L.) in relation to water loss and storage

    Nielsen, M., Martens, Helle Jakobe & Kaack, K., 1998, In: Postharvest Biology and Technology. 14, p. 297-308 12 p.

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

  11. Published

    Texture and microstructure of steam cooked, vacuum packed potatoes

    Thybo, A. K., Martens, Helle Jakobe & Lyshede, O. B., 1998, In: Journal of Food Science. 63, 4, p. 692-695 4 p.

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

  12. 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

  13. 1999
  14. 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

  15. 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

  16. 2000
  17. 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

  18. 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

  19. 2001
  20. 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

  21. 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

  22. 2002
  23. 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

  24. 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

  25. 2003
  26. 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

  27. 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

  28. Published

    Phloem development and function probed with a companion-cell marker

    Wright, K. M., Roberts, A. G., Martens, Helle Jakobe, Sauer, N. & Oparka, K. J., 2003, In: Annual report. 2002/2003, p. 118-121 4 p.

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

  29. 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

  30. Published

    Structural and functional vein maturation in developing tobacco leaves in relation to AtSUC2 promoter activity

    Wright, K. M., Roberts, A. G., Martens, Helle Jakobe, Sauer, N. & Oparka, K. J., 2003, In: Plant Physiology. 131, 4, p. 1555-1565 11 p.

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

  31. 2004
  32. 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

  33. 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

  34. 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

  35. 2005
  36. 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

  37. 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

  38. Published

    Lab manual for plant anatomy

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

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

  39. 2006
  40. 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

  41. 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

  42. 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

  43. 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

  44. 2007
  45. 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

  46. Published

    Quantification of plasmodesmatal ER coupling between sieve elements and companion cells using fluorescence redistribution after photobleaching (FRAP)

    Martens, Helle Jakobe, Robert, A. G., Oparka, K. J. & Schulz, Alexander, 2007. 1 p.

    Research output: Contribution to conference › Poster › Research

  47. 2008
  48. 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

  49. 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

  50. 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

  51. 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

  52. 2009
  53. Published

    Cell-to-cell transport through plasmodesmata in tree callus cultures

    Pina, A., Errea, P., Schulz, Alexander & Martens, Helle Jakobe, 2009, In: Tree Physiology. 29, 6, p. 809-818 10 p.

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

  54. 2010
  55. Published

    Naturen i Danmark: Mikroskopfotos

    Martens, Helle Jakobe, 2010, Skovene, Gyldendal A/S.

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

  56. 2011
  57. Published

    Proximate composition, histochemical analysis and microstructural localisation of nutrients in immature and mature seeds of marama bean (Tylosema esculentum) – an underutilised food legume

    Mosele, M. M., Hansen, Åse Solvej, Hansen, M., Schulz, Alexander & Martens, Helle Jakobe, 2011, In: Food Chemistry. 127, 4, p. 1555-1561 7 p.

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

  58. 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

  59. 2012
  60. Published

    Graft union formation and cell-to-cell communication via plasmodesmata in compatible and incompatible stem unions of Prunus spp.

    Pina, A., Errea, P. & Martens, Helle Jakobe, 2012, In: Scientia Horticulturae. 143, p. 144-150 7 p.

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

  61. 2013
  62. 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

  63. 2014
  64. Published

    Manoyl oxide (13R), the biosynthetic precursor of forskolin, is synthesized in specialized root cork cells in Coleus forskohlii

    Pateraki, Irini, Andersen-Ranberg, Johan, Hamberger, B., Heskes, A. M., Martens, Helle Jakobe, Zerbe, P., Bach, S. S., Møller, Birger Lindberg, Bohlmann, J. & Hamberger, B. R., 2014, In: Plant Physiology. 164, 3, p. 1222-1236 15 p.

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

  65. Published

    SVR4 (suppressor of variegation 4) and SVR4-like: two proteins with a role in proper organization of the chloroplast genetic machinery

    Powikrowska, M., Khrouchtchova, A., Martens, Helle Jakobe, Nielsen, A. J. Z., Melonek, J., Schulz, Alexander, Krupinska, K., Rodermel, S. & Jensen, Poul Erik, 2014, In: Physiologia Plantarum. 150, 3, p. 477-492 16 p.

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

  66. Published

    Starch bioengineering affects cereal grain germination and seedling establishment

    Shaik, S. S., Carciofi, M., Martens, Helle Jakobe, Hebelstrup, K. & Blennow, Andreas, 2014, In: Journal of Experimental Botany. 65, 9, p. 2257-2270

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

  67. 2015
  68. Published

    Acetylation of cell wall is required for structural integrity of the leaf surface and exerts a global impact on plant stress responses

    Nafisi, M., Stranne, M., Fimognari, L., Atwell, S., Martens, Helle Jakobe, Pedas, P. R., Hansen, S. F., Nawrath, C., Scheller, H. V., Kliebenstein, D. J. & Sakuragi, Y., 2015, In: Frontiers in Plant Science. 6, 13 p., 550.

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

  69. Published

    Enzymatic solubilisation and degradation of soybean fibre demonstrated by viscosity, fibre analysis and microscopy

    Ravn, J. L., Martens, Helle Jakobe, Pettersson, D. & Pedersen, N., 2015, In: Journal of Agricultural Science. 7, 9, 13 p.

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

  70. Published

    Intercropping effect on root growth and nitrogen uptake at different nitrogen levels

    Ramirez-Garcia, J., Martens, Helle Jakobe, Quemada, M. & Thorup-Kristensen, Kristian, 2015, In: Journal of Plant Ecology. 8, 4, p. 380-389 10 p.

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

  71. 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

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