Niels-Ulrik Frigaard

Niels-Ulrik Frigaard

Associate Professor


  1. [2Fe-2S] Proteins in chlorosomes: redox properties of CsmI, CsmJ, and CsmX of the chlorosome envelope of Chlorobaculum tepidum

    Johnson, T. W., Li, H., Frigaard, Niels-Ulrik, Golbeck, J. H. & Bryant, D. A., 2013, In: Biochemistry. 52, 8, p. 1331-1343 13 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  2. [2Fe-2S] Proteins in Chlorosomes: CsmI and CsmJ participate in light-dependent control of energy transfer in Chlorosomes of Chlorobaculum tepidum

    Li, H., Frigaard, Niels-Ulrik & Bryant, D. A., 2013, In: Biochemistry. 52, 8, p. 1321-1330 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. Published

    X-ray scattering and electron cryomicroscopy study on the effect of carotenoid biosynthesis to the structure of Chlorobium tepidum chlorosomes

    Ikonen, T. P., Li, H., Psencík, J., Laurinmäki, P. A., Butcher, S. J., Frigaard, Niels-Ulrik, Serimaa, R. E., Bryant, D. A. & Tuma, R., 2007, In: Biophysical Journal. 93, 2, p. 620-628 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  4. 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

  5. Published

    The remarkable chlorosome

    Frigaard, Niels-Ulrik, Vassilieva, E. V., Li, H., Milks, K. J., Zhao, J. & Bryant, D. A., 2001, Proceedings of the 12th International Congress on Photosynthesis. CSIRO Publishing, p. S1-003 6 p.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

  6. Published

    The effect of high concentrations of green sulfur bacteria on the biogeochemical carbon cycle of Lago di Cadagno

    Habicht, K. S., Frigaard, Niels-Ulrik, Johnson, B., Andersen, J. S., Falkenby, L. & Miller, M., 2010, In: Geochimica et Cosmochimica Acta. p. A369

    Research output: Contribution to journalJournal articleResearch

  7. 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

  8. Published

    Synthetic biology of cyanobacteria for production of biofuels and high-value products

    Klemenčič, M., Nielsen, A. Z., Sakuragi, Y., Frigaard, Niels-Ulrik, Čelešnik, H., Jensen, Poul Erik & Dolinar, M., 2017, Microalgae-Based Biofuels and Bioproducts: From Feedstock Cultivation to End-Products. Gonzalez-Fernandez, C. & Muñoz, R. (eds.). Duxford, UK: Elsevier Science Inc., p. 305-325 21 p. (Woodhead Publishing Series in Energy).

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

  9. Published

    Sulfur metabolism in phototrophic sulfur bacteria

    Frigaard, Niels-Ulrik & Dahl, C., 2008, In: Advances in Microbial Physiology. 54, p. 103-200 97 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  10. Published

    Sulfur globule oxidation in green sulfur bacteria is dependent on the dissimilatory sulfite reductase system

    Holkenbrink, C., Ocón Barbas, S., Mellerup, A., Otaki, H. & Frigaard, Niels-Ulrik, 2011, In: Microbiology. 157, 4, p. 1229-1239 11 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  11. Published

    Sugar and Sugar Alcohol Production in Genetically Modified Cyanobacteria

    Frigaard, Niels-Ulrik, 2018, Genetically Engineered Foods. Holban, A. M. & Grumezescu, A. M. (eds.). Academic Press, p. 31-47 17 p. (Handbook of Food Bioengineering, Vol. 6).

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

  12. Published

    Substantial near-infrared radiation-driven photosynthesis of chlorophyll f-containing cyanobacteria in a natural habitat

    Kühl, Michael, Trampe, Erik, Moßhammer, Maria, Johnson, M., Larkum, A. W. D., Frigaard, Niels-Ulrik & Koren, K., 2020, In: eLife. 9, 15 p., e50871.

    Research output: Contribution to journalJournal articleResearchpeer-review

  13. 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

  14. Published

    Studies of the location and function of isoprenoid quinones in chlorosomes from green sulfur bacteria

    Frigaard, Niels-Ulrik, Matsuura, K., Hirota, M., Miller, M. & Cox, R. P., 1998, In: Photosynthesis Research. 58, p. 81-90 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  15. Published

    Spectrochromatography of photosynthetic pigments as a fingerprinting technique for microbial phototrophs

    Frigaard, Niels-Ulrik, Larsen, K. L. & Cox, R. P., 1996, In: FEMS Microbiology Ecology. 20, p. 69-77 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  16. Published

    Selective Protein Extraction from Chlorobium tepidum Chlorosomes Using Detergents. Evidence That CsmA Forms Multimers and Binds Bacteriochlorophyll a

    Bryant, D. A., Vassilieva, E. V., Frigaard, Niels-Ulrik & Li, H., 2002, In: Biochemistry. 41, 48, p. 14403-14411 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  17. Published

    Seeing green bacteria in a new light: genomics-enabled studies of the photosynthetic apparatus in green sulfur bacteria and filamentous anoxygenic phototrophic bacteria

    Frigaard, Niels-Ulrik & Bryant, D. A., 2004, In: Archives of Microbiology. 182, 4, p. 265-276 12 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  18. Published

    Rerouting of carbon flux in a glycogen mutant of cyanobacteria assessed via isotopically non-stationary 13C metabolic flux analysis

    Hendry, J. I., Prasannan, C., Ma, F., Möllers, B., Jaiswal, D., Digmurti, M., Allen, D. K., Frigaard, Niels-Ulrik, Dasgupta, S. & Wangikar, P. P., Oct 2017, In: Biotechnology and Bioengineering. 114, 10, p. 2298-2308 11 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  19. Quinones in chlorosomes of green sulfur bacteria and their role in the redox-dependent fluorescence studied in chlorosome-like bacteriochlorophyll c aggregates

    Frigaard, Niels-Ulrik, Takaichi, S., Hirota, M., Shimada, K. & Matsuura, K., 1 Jan 1997, In: Archives of Microbiology. 167, 6, p. 343-349 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  20. Published

    Quinones in chlorosomes of green sulfur bacteria and their role in the redox-dependent fluorescence studied in chlorosome like bacteriochlorophyll c aggregates

    Frigaard, Niels-Ulrik, Takaichi, S., Hirota, M., Shimada, K. & Matsuura, K., 1997, In: Archives of Microbiology. 167, p. 343-349 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  21. 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

  22. Published

    Quantitative proteomics of Chlorobaculum tepidum: insights into the sulfur metabolism of a phototrophic green sulfur bacterium

    Falkenby, L. G., Szymanska, M., Holkenbrink, C., Habicht, K. S., Andersen, J. S., Miller, M. & Frigaard, Niels-Ulrik, 2011, In: F E M S Microbiology Reviews. 323, 2, p. 142-150 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  23. Published

    Proteorhodopsin lateral gene transfer between marine planktonic Bacteria and Archaea

    Frigaard, Niels-Ulrik, Martinez, A., Mincer, T. J. & DeLong, E. F., 2006, In: Nature. 439, 7078, p. 847-850 4 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  24. Published

    Proteomic study of Chlorobium clathratiforme in Lago di Cadagno, Switzerland

    Habicht, K. S., Miller, M., Nielsen, L. F., Frigaard, Niels-Ulrik & Andersen, J. S., 2009, In: Geochimica et Cosmochimica Acta. p. A484

    Research output: Contribution to journalJournal articleResearch

  25. 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

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