Helle Jakobe Martens
Associate Professor
Forest and Bioressources
Rolighedsvej 23
1958 Frederiksberg C
- 2024
- Published
Polyploidy – A tool in adapting trees to future climate changes? A review of polyploidy in trees
Ræbild, Anders, Anamthawat-Jónsson, K., Egertsdotter, U., Immanen, J., Jensen, A. M., Koutouleas, Tina, Martens, Helle Jakobe, Nieminen, K., Olofsson, Jill Katharina, Röper, A. C., Salojärvi, J., Strömvik, M., Vatanparast, Mohammad & Vivian-Smith, A., 2024, In: Forest Ecology and Management. 560, 14 p., 121767.Research output: Contribution to journal › Review › Research › peer-review
- 2023
- Published
A fungal lytic polysaccharide monooxygenase is required for cell wall integrity, thermotolerance, and virulence of the fungal human pathogen Cryptococcus neoformans
Probst, C., Hallas-Møller, Magnus, Ipsen, J. Ø., Brooks, J. S., Andersen, Karsten Wiberg, Haon, M., Berrin, J., Martens, Helle Jakobe, Nichols, C. A., Johansen, Katja Salomon & Alspaugh, J. A., 2023, In: PLOS Pathogens. 19, 4, 33 p., e1010946.Research output: Contribution to journal › Journal article › Research › peer-review
- Published
Anyone Can Get Old—All You Have to Do Is Live Long Enough: Understanding Mortality and Life Expectancy in European Hedgehogs (Erinaceus europaeus)
Rasmussen, S. L., Berg, T. B., Martens, Helle Jakobe & Jones, O. R., 2023, In: Animals. 13, 4, 24 p., 626.Research output: Contribution to journal › Journal article › Research › peer-review
- 2022
- 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
- Published
A fungal lytic polysaccharide monooxygenase is required for cell wall integrity, thermotolerance, and virulence of the fungal human pathogen Cryptococcus neoformans
Probst, C., Hallas-Møller, Magnus, Ipsen, J. Ø., Brooks, J. T., Andersen, Karsten Wiberg, Haon, M., Berrin, J., Martens, Helle Jakobe, Nichols, C. B., Johansen, Katja Salomon & Alspaugh, J. A., 2022, bioRxiv, 70 p.Research output: Working paper › Preprint › Research
- 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. 503-514Research output: Contribution to journal › Journal article › Research › peer-review
- 2021
- 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
- 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
- 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
- Published
Outdoor cultivation of a novel isolate of the microalgae Scenedesmus sp. and the evaluation of its potential as a novel protein crop
Olsen, M. F. L., Pedersen, J. S., Thomsen, Sune Tjalfe, Martens, Helle Jakobe, Petersen, A. & Jensen, Poul Erik, 2021, In: Physiologia Plantarum. 173, 2, p. 483-494Research output: Contribution to journal › Journal article › Research › peer-review
- 2020
- 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
- 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
- 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
- 2019
- Published
The P5A ATPase Spf1p is stimulated by phosphatidylinositol 4-phosphate and influences cellular sterol homeostasis
Sørensen, D. M., Holen, H. W., Pedersen, J. T., Martens, Helle Jakobe, Silvestro, D., Stanchev, L. D., Costa, S. R., Pomorski, Thomas Guenther, Lopez Marques, Rosa Laura & Palmgren, Michael, 15 Apr 2019, In: Molecular Biology of the Cell. 30, 9, p. 1069-1084Research output: Contribution to journal › Journal article › Research › peer-review
- 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. 1354-1361Research output: Contribution to journal › Journal article › Research › peer-review
- 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
- 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
- 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
- 2018
- 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
- 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. 1049-1060Research output: Contribution to journal › Journal article › Research › peer-review
- 2017
- Published
Barley genotypic β-glucan variation combined with enzymatic modifications direct its potential as a natural ingredient in a high fiber extract
Mikkelsen, M. S., Meier, S., Jensen, M. G., Qin, F., Stoica, I., Martens, Helle Jakobe, Blennow, Andreas & Jespersen, Birthe P Møller, 2017, In: Journal of Cereal Science. 75, p. 45-53 9 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 2016
- Published
The microfluidic network of a plant leaf
Rademaker, H., Jensen, K. H., Martens, Helle Jakobe, Schulz, Alexander & Bohr, T., 25 May 2016.Research output: Contribution to conference › Poster › Research
- Published
A commercial GH11 xylanase mediates xylan solubilisation and degradation in wheat, rye and barley as demonstrated by microscopy techniques and wet chemistry methods
Ravn, J. L., Martens, Helle Jakobe, Pettersson, D. & Pedersen, N. R., 2016, In: Animal Feed Science and Technology. 219, p. 216-225 10 p.Research output: Contribution to journal › Journal article › Research › peer-review
- 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
- 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
- 2015
- 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
- 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
- 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
- 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
- 2014
- 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
- 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
- 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. 2257-2270Research output: Contribution to journal › Journal article › Research › peer-review
- 2013
- 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
- 2012
- 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
- 2011
- 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
- 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
- 2009
- 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
- 2008
- 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
- Published
- 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
- 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
- 2007
- 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
- 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
- 2006
- 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
- 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
- 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
- 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
- 2005
- 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
- 2004
- 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
- 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
ID: 4237290
Most downloads
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2041
downloads
Starch bioengineering affects cereal grain germination and seedling establishment
Research output: Contribution to journal › Journal article › Research › peer-review
Published -
342
downloads
Acetylation of cell wall is required for structural integrity of the leaf surface and exerts a global impact on plant stress responses
Research output: Contribution to journal › Journal article › Research › peer-review
Published -
256
downloads
Transfer of the cytochrome P450-dependent dhurrin pathway from Sorghum bicolor into Nicotiana tabacum chloroplasts for light-driven synthesis
Research output: Contribution to journal › Journal article › Research › peer-review
Published