Niels-Ulrik Frigaard

Niels-Ulrik Frigaard

Associate Professor


  1. 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

  2. Published

    Alle bakterier deler gener ved horisontal overførsel

    Frigaard, Niels-Ulrik, 2007, In: Dansk Kemi. 88, 5, p. 28-31 4 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. Published

    Isolation and Characterization of Carotenosomes from a Bacteriochlorophyll c-less Mutant of Chlorobium tepidum

    Frigaard, Niels-Ulrik, Li, H., Martinsson, P., Das, S. K., Frank, H. A., Aartsma, T. J. & Bryant, D. A., 2005, In: Photosynthesis Research. 86, 1-2, p. 101-11 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  4. Published

    Biotechnology of anoxygenic phototrophic bacteria

    Frigaard, Niels-Ulrik, 2016, Anaerobes in biotechnology. Hatti-Kaul, R., Mamo, G. & Mattiasson, B. (eds.). Springer, p. 139-154 16 p. (Advances in Biochemical Engineering. Biotechnology, Vol. 156).

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

  5. 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

  6. 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

  7. 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

  8. Published

    Chlorobium Tepidum: Insights into the Structure, Physiology, and Metabolism of a Green Sulfur Bacterium Derived from the Complete Genome Sequence

    Frigaard, Niels-Ulrik, Chew, A. G. M., Li, H., Maresca, J. A. & Bryant, D. A., 2003, In: Photosynthesis Research. 78, 2, p. 93-117 24 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  9. 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

  10. Published

    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: Plant and Cell Physiology.

    Research output: Contribution to journalJournal articleResearch

  11. Published

    Bacteriochlorophyllide c C-82 and C-121 methyltransferases are essential for adaptation to low light in Chlorobaculum tepidum

    Gomez Maqueo Chew, A., Frigaard, Niels-Ulrik & Bryant, D. A., 2007, In: Journal of Bacteriology. 189, 17, p. 6176-6184 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  12. Published

    Mutational analysis of three bchH paralogs in (bacterio-)chlorophyll biosynthesis in Chlorobaculum tepidum

    Gomez Maqueo Chew, A., Frigaard, Niels-Ulrik & Bryant, D. A., 2009, In: Photosynthesis Research. 101, 1, p. 21-34 13 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  13. Published

    Identification of the bchP gene, encoding geranylgeranyl reductase in Chlorobaculum tepidum

    Gomez Maqueo Chew, A., Frigaard, Niels-Ulrik & Bryant, D. A., 2008, In: Journal of Bacteriology. 190, 2, p. 747-749 3 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  14. Published

    Dominance of a clonal green sulfur bacterial population in a stratified lake

    Gregersen, Lea Haarup, Habicht, K. S., Peduzzi, S., Tonolla, M., Canfield, D. E., Miller, M., Cox, R. P. & Frigaard, Niels-Ulrik, 2009, In: FEMS Microbiology Ecology. 70, 1, p. 30-41 12 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  15. Published

    Mechanisms and evolution of oxidative sulfur metabolism in green sulfur bacteria

    Gregersen, Lea Haarup, Bryant, D. A. & Frigaard, Niels-Ulrik, 2011, In: Frontiers in Microbiology. 2, 14 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  16. 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

  17. 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

  18. Published

    Comparative proteomics and activity of a green sulfur bacterium across the water column of Lake Cadagno, Switzerland

    Habicht, K. S., Miller, M., Cox, R. P., Frigaard, Niels-Ulrik, Tonolla, M., Peduzzi, S., Falkenby, L. G. & Andersen, J. S., 2011, In: Environmental Microbiology. 13, 1, p. 203-215 13 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  19. 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

  20. 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

  21. 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

  22. Published

    Engineering of photosynthetic mannitol biosynthesis from CO2 in a cyanobacterium

    Jacobsen, J. H. & Frigaard, Niels-Ulrik, 2014, In: Metabolic Engineering. 21, p. 60-70 11 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  23. Published

    One-step plasmid construction for generation of knock-out mutants in cyanobacteria: studies of glycogen metabolism in Synechococcus sp. PCC 7002

    Jacobsen, J. H., Rosgaard, L., Sakuragi, Y. & Frigaard, Niels-Ulrik, 2011, In: Photosynthesis Research. 107, 2, p. 215-221 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  24. [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

  25. Published

    Menaquinone-7 in the reaction center complex of the green sulfur bacterium Chlorobium vibrioforme functions as the electron acceptor A1

    Kjaer, B., Frigaard, Niels-Ulrik, Yang, F., Zybailov, B., Miller, M., Golbeck, J. H. & Scheller, H. V., 1998, In: Biochemistry. 37, 10, p. 3237-3242 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

ID: 4633