Niels-Ulrik Frigaard

Niels-Ulrik Frigaard

Associate Professor


  1. Published

    Effect of alkaline treatment on bacteriochlorophyll a, quinones, and energy transfer in chlorosomes from Chlorobium tepidum and Chlorobium phaeobacteroides

    van Walree, C. A., Sakuragi, Y., Steensgaard, D. B., Bösinger, C. S., Frigaard, Niels-Ulrik, Cox, R. P., Holzwarth, A. R. & Miller, M., 1999, In: Photochemistry and Photobiology. 69, p. 322-328 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  2. Published

    Subcellular localization of chlorosome proteins in Chlorobium tepidum and characterization of three new chlorosome proteins: CsmF, CsmH, and CsmX

    Vassilieva, E. V., Stirewalt, V. L., Jakobs, C. U., Frigaard, Niels-Ulrik, Inoue-Sakamoto, K., Baker, M. A., Sotak, A. & Bryant, D. A., 2002, In: Biochemistry. 41, p. 4358-4370 13 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. Published

    Chlorosomes: The light-harvesting complexes of green bacteria

    Vassilieva, E. V., Frigaard, Niels-Ulrik & Bryant, D. A., 2000, In: The Spectrum. 13, p. 7-13

    Research output: Contribution to journalJournal articleResearch

  4. Published

    Effect of alkaline treatment on bacteriochlorophyll a, quinones and energy transfer in chlorosomes from Chlorobium tepidum and Chlorobium phaeobacteroides

    Van Walree, C. A., Sakuragi, Y., Steensgaard, D. B., Bösinger, C. S., Frigaard, Niels-Ulrik, Cox, R. P., Holzwart, A. R. & Miller, M., 1 Jan 1999, In: Photochemistry and Photobiology. 69, 3, p. 322-328 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  5. Published

    Lake Cadagno: microbial life in crenogenic meromixis

    Tonolla, M., Storelli, N., Danza, F., Gulati, R. D. (ed.), Ravasi, D., Peduzzi, S., Posth, Nicole Rita Elisabeth, Cox, R. P., Jørgensen, M. F., Gregersen, Lea Haarup, Daugbjerg, Niels & Frigaard, Niels-Ulrik, 2017, Ecology of Meromictic Lakes. Gulati, R. D., Zadereev, E. S. & Degermendzhi, A. G. (eds.). Springer, p. 155-186 32 p. (Ecological Studies, Vol. 228).

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

  6. Published

    Pheophytinization of bacteriochlorophyll c and energy transfer in cells of Chlorobium tepidum

    Tokita, S., Hirota, M., Frigaard, Niels-Ulrik, Shimada, K. & Matsuura, K., 1999, In: Archives of Microbiology. 172, 1, p. 40-44 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  7. Published

    Quenching of bacteriochlorophyll fluorescence in chlorosomes from Chloroflexus aurantiacus by exogenous quinones

    Tokita, S., Frigaard, Niels-Ulrik, Hirota, M., Shimada, K. & Matsuura, K., 2000, In: Photochemistry and Photobiology. 72, 3, p. 345-350 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  8. Published

    Complete genome sequence of the photoautotrophic and bacteriochlorophyll e-synthesizing green sulfur bacterium Chlorobaculum limnaeum DSM 1677T

    Tank, M., Liu, Z., Frigaard, Niels-Ulrik, Tomsho, L. P., Schuster, S. C. & Bryant, D. A., Jun 2017, In: Genome Announcements. 5, 24, 2 p., e00529-17.

    Research output: Contribution to journalJournal articleResearch

  9. Published

    Proteomic analysis of the purple sulfur bacterium Candidatus "Thiodictyon syntrophicum" strain Cad16T isolated from Lake Cadagno

    Storelli, N., Saad, M. M., Frigaard, Niels-Ulrik, Perret, X. & Tonolla, M., 2014, In: EuPA Open Proteomics. 2, p. 17-30 14 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  10. Published

    CO2 assimilation in the chemocline of Lake Cadagno is dominated by a few types of phototrophic purple sulfur bacteria

    Storelli, N., Peduzzi, S., Saad, M., Frigaard, Niels-Ulrik, Perret, X. & Tonolla, M., 2013, In: F E M S Microbiology Ecology. 84, 2, p. 421-432 12 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  11. Published

    Base treatment of chlorosomes and the regulation of energy transfer in the base-plate

    Sakuragi, Y., Matsuura, K., Frigaard, Niels-Ulrik, Miller, M. & Cox, R. P., 1998, In: Plant and Cell Physiology.

    Research output: Contribution to journalJournal articleResearch

  12. Published

    Association of bacteriochlorophyll a with the CsmA protein in chlorosomes of the photosynthetic green filamentous bacterium Chloroflexus aurantiacus

    Sakuragi, Y., Frigaard, Niels-Ulrik, Shimada, K. & Matsuura, K., 1999, In: BBA General Subjects. 1413, 3, p. 172-180 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  13. Published

    Bioengineering of carbon fixation, biofuels, and biochemicals in cyanobacteria and plants

    Rosgaard, L., de Porcellinis, A. J., Jacobsen, J. H., Frigaard, Niels-Ulrik & Sakuragi, Y., 2012, In: Journal of Biotechnology. 162, 1, p. 134–147 14 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  14. Published

    Carbon isotope fractionation by anoxygenic phototrophic bacteria in euxinic Lake Cadagno

    Posth, Nicole Rita Elisabeth, Bristow, L. A., Cox, R. P., Habicht, K. S., Danza, F., Tonolla, M., Frigaard, Niels-Ulrik & Canfield, D. E., Nov 2017, In: Geobiology. 15, 6, p. 798-816 19 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  15. Published

    Determination of the glycogen content in cyanobacteria

    Porcellinis, A. D., Frigaard, Niels-Ulrik & Sakuragi, Y., 2017, In: Journal of Visualized Experiments. 125, e56068.

    Research output: Contribution to journalJournal articleResearchpeer-review

  16. Published

    Pigments and proteins in green bacterial chlorosomes studied by matrix-assisted laser desorption ionization mass spectrometry

    Persson, S., Sönksen, C. P., Frigaard, Niels-Ulrik, Cox, R. P., Roepstorff, P. & Miller, M., 2000, In: European Journal of Biochemistry. 267, 2, p. 450-456 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  17. Published

    A model of the protein–pigment baseplate complex in chlorosomes of photosynthetic green bacteria

    Pedersen, M. Ø., Linnanto, J., Frigaard, Niels-Ulrik, Nielsen, N. C. & Miller, M., 2010, In: Photosynthesis Research. 104, 2-3, p. 233-243 11 p.

    Research output: Contribution to journalReviewResearchpeer-review

  18. Published

    Uncovering commensal bacteria-plant interaction: characterisation of bacterial endophytes and their population structures in the model plant Arabidopsis thaliana

    Paiva, D. S., Klepac-Ceraj, V., Lemon, K., Kolter, R., Frigaard, Niels-Ulrik, Gautier, L. & Sakuragi, Y., 2009.

    Research output: Contribution to conferenceConference abstract for conferenceResearch

  19. Published

    In situ high-resolution structure of the baseplate antenna complex in Chlorobaculum tepidum

    Nielsen, J. T., Kulminskaya, N. V., Bjerring, M., Linnanto, J. M., Rätsep, M., Pedersen, M. Ø., Lambrev, P. H., Dorogi, M., Garab, G., Thomsen, K., Jegerschöld, C., Frigaard, Niels-Ulrik, Lindahl, M. & Nielsen, N. C., 2016, In: Nature Communications. 7, 12 p., 12454.

    Research output: Contribution to journalJournal articleResearchpeer-review

  20. Published

    Cyanobacterial biomass as carbohydrate and nutrient feedstock for bioethanol production by yeast fermentation

    Möllers, K. B., Cannella, D., Jørgensen, H. & Frigaard, Niels-Ulrik, 2014, In: Biotechnology for Biofuels. 7, 64, 11 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  21. Published

    Isolation and characterization of csmH, a chlorosome envelope protein, from the green sulfur bacterium Chlorobium tepidum

    Milks, K. J., Frigaard, Niels-Ulrik & Bryant, D. A., 2002, In: Abstracts of the General Meeting of the American Society for Microbiology.

    Research output: Contribution to journalJournal articleResearch

  22. Published

    Electronic energy transfer involving carotenoid pigments in chlorosomes of two green bacteria: Chlorobium tepidum and Chloroflexus aurantiacus

    Melø, T. B., Frigaard, Niels-Ulrik, Matsuura, K. & Razi Naqvi, K., 2000, In: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 56, 10, p. 2001-2010 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  23. Published

    The bchU gene of Chlorobium tepidum encodes the C-20 methyltransferase in bacteriochlorophyll c biosynthesis

    Maresca, J. A., Gomez Maqueo Chew, A., Ponsatí, M. R., Frigaard, Niels-Ulrik, Ormerod, J. G. & Bryant, D. A., 2004, In: Journal of Bacteriology. 186, 9, p. 2558-2566 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  24. Published

    Complete genome sequence of "Thiodictyon syntrophicum" sp. nov. strain Cad16T, a photolithoautotrophic purple sulfur bacterium isolated from the alpine meromictic Lake Cadagno

    Luedin, S. M., Pothier, J. F., Danza, F., Storelli, N., Frigaard, Niels-Ulrik, Wittwer, M. & Tonolla, M., 9 May 2018, In: Standards in Genomic Sciences. 13, 14.

    Research output: Contribution to journalJournal articleResearchpeer-review

  25. Published

    Draft Genome Sequence of Chromatium okenii Isolated from the Stratified Alpine Lake Cadagno

    Luedin, S. M., Liechti, N., Cox, R. P., Danza, F., Frigaard, Niels-Ulrik, Posth, Nicole Rita Elisabeth, Pothier, J. F., Roman, S., Storelli, N., Wittwer, M. & Tonolla, M., 2019, In: Scientific Reports. 9, 14 p., 1936 .

    Research output: Contribution to journalJournal articleResearchpeer-review

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