Niels-Ulrik Frigaard

Niels-Ulrik Frigaard

Associate Professor


  1. 2020
  2. 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

  3. 2019
  4. 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

  5. 2018
  6. 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

  7. 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

  8. 2017
  9. 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

  10. 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

  11. 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

  12. 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

  13. 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

  14. 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

  15. 2016
  16. 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

  17. 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

  18. Published

    Light-driven oxidation of polysaccharides by photosynthetic pigments and a metalloenzyme

    Cannella, D., Möllers, K. B., Frigaard, Niels-Ulrik, Jensen, Poul Erik, Bjerrum, Morten Jannik, Johansen, Katja Salomon & Felby, C., 2016, In: Nature Communications. 7, 11134.

    Research output: Contribution to journalJournal articleResearchpeer-review

  19. 2014
  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

    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

  22. 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

  23. 2013
  24. 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

  25. Published

    Genomic analysis reveals key aspects of prokaryotic symbiosis in the phototrophic consortium "Chlorochromatium aggregatum"

    Liu, Z., Müller, J., Li, T., Alvey, R. M., Vogl, K., Frigaard, Niels-Ulrik, Rockwell, N. C., Boyd, E. S., Tomsho, L. P., Schuster, S. C., Henke, P., Rohde, M., Overmann, J. & Bryant, D. A., 2013, In: Genome Biology (Online Edition). 14, 11, 16 p., R127 .

    Research output: Contribution to journalJournal articleResearchpeer-review

  26. [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

  27. [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

  28. 2012
  29. 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

  30. Published

    Comparative and functional genomics of anoxygenic green bacteria from the taxa Chlorobi, Chloroflexi, and Acidobacteria

    Bryant, D. A., Liu, Z., Li, T., Zhao, F., Klatt, C. G., Ward, D. M., Frigaard, Niels-Ulrik & Overmann, J., 2012, Functional genomics and evolution of photosynthetic systems. Burnap, R. L. & Vermaas, W. F. J. (eds.). Springer, p. 47-102 56 p. (Advances in Photosynthesis and Respiration, Vol. 33).

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

  31. Published

    Complete genome of Ignavibacterium album, a metabolically versatile, flagellated, facultative anaerobe from the phylum Chlorobi

    Liu, Z., Frigaard, Niels-Ulrik, Vogl, K., Iino, T., Ohkuma, M., Overmann, J. & Bryant, D. A., 2012, In: Frontiers in Microbiology. 3, 15 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  32. Published

    In situ solid-state NMR spectroscopy of protein in heterogeneous membranes: the baseplate antenna complex of Chlorobaculum tepidum

    Kulminskaya, N., Pedersen, M. Ø., Bjerring, M., Underhaug, J., Miller, M., Frigaard, Niels-Ulrik, Nielsen, J. T. & Nielsen, N. C., 2012, In: Angewandte Chemie International Edition. 51, 28, p. 6891-6895 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  33. 2011
  34. 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

  35. 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

  36. 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

  37. 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

  38. 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

  39. 2010
  40. 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

  41. 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

  42. 2009
  43. 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

  44. Published

    Multiple antioxidant proteins protect Chlorobaculum tepidum against oxygen and reactive oxygen species

    Li, H., Jubelirer, S., Garcia Costas, A. M., Frigaard, Niels-Ulrik & Bryant, D. A., 2009, In: Archives of Microbiology. 191, 11, p. 853-67 14 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  45. 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

  46. 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

  47. 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

  48. 2008
  49. Published

    Genomic Insights into the Sulfur Metabolism of Phototrophic Green Sulfur Bacteria

    Frigaard, Niels-Ulrik & Bryant, D. A., 2008, In: Advances in Photosynthesis and Respiration. 27, p. 337-355 18 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  50. Published

    Genomic and Evolutionary Perspectives on Sulfur Metabolism in Green Sulfur Bacteria

    Frigaard, Niels-Ulrik & Bryant, D. A., 2008, Microbial Sulfur Metabolism. Springer, p. 60-76 16 p.

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  51. 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

  52. 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

  53. 2007
  54. 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

  55. 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

  56. Published

    Bacteriochlorophyllide c C-8(2) and C-12(1) Methyltransferases are essential for adaptation to low light in Chlorobaculum tepidum

    Chew, A. G. M., Frigaard, Niels-Ulrik & Bryant, D. A., 2007, In: Journal of Bacteriology.

    Research output: Contribution to journalJournal articleResearchpeer-review

  57. 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

  58. 2006
  59. Published

    Bacteriochlorophyll biosynthesis in green bacteria

    Frigaard, Niels-Ulrik, Chew, A. G. M., Maresca, J. A. & Bryant, D. A., 2006, Chlorophylls and Bacteriochlorophylls: Biochemistry, Biophysics, Functions and Applications. Grimm, B., Porra, R. J., Rüdiger, W. & Scheer, H. (eds.). Berlin: Springer, Vol. 25. p. 201-221

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  60. Published

    Chlorosomes: antenna organelles in photosynthetic green bacteria

    Frigaard, Niels-Ulrik & Bryant, D. A., 2006, Complex Intracellular Structures in Prokaryotes. Shively, J. M. (ed.). Berlin: Springer, Vol. 2. p. 79-114 (Microbiology Monographs, Vol. 2).

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  61. Published

    Community genomics among stratified microbial assemblages in the ocean's interior

    DeLong, E. F., Preston, C. M., Mincer, T., Rich, V., Hallam, S. J., Frigaard, Niels-Ulrik, Martinez, A., Sullivan, M. B., Edwards, R., Brito, B. R., Chisholm, S. W. & Karl, D. M., 2006, In: Science. 311, 5760, p. 496-503 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  62. Published

    Mikroorganismer på gen-indkøb

    Frigaard, Niels-Ulrik, 2006, In: Aktuel Naturvidenskab. 4, p. 15 1 p.

    Research output: Contribution to journalJournal articleResearch

  63. Published

    Molecular contacts for chlorosome envelope proteins revealed by cross-linking studies with chlorosomes from Chlorobium tepidum

    Li, H., Frigaard, Niels-Ulrik & Bryant, D. A., 2006, In: Biochemistry. 45, 30, p. 9095-9103 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  64. Published

    Prokaryotic photosynthesis and phototrophy illuminated

    Bryant, D. A. & Frigaard, Niels-Ulrik, 2006, In: Trends in Microbiology. 14, 11, p. 488-496 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

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