Niels Kroer

Niels Kroer

Head of Department

ORCID: 0000-0003-4557-465X

Publication year:
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1 - 48 out of 48Page size: 500
  1. 1986

  2. Distribution and habitat segregation of four species of 1dotea (Isopoda) in a danish fjord

    Kroer, Niels, 1 Jan 1986, In: Ophelia. 25, 3, p. 199-207 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  3. 1989

  4. Life cycle characteristics and reproductive patterns of idotea spp. (Isopoda) in the limfjord, Denmark

    Kroer, Niels, 1 Jan 1989, In: Ophelia. 30, 1, p. 63-74 12 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  5. 1992

  6. Microbial trophic interactions in aquatic microcosms designed for testing genetically engineered microorganisms: A field comparison

    Kroer, Niels & Coffin, R. B., 1 Jun 1992, In: Microbial Ecology. 23, 2, p. 143-157 15 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  7. 1993

  8. Bacterial growth efficiency on natural dissolved organic matter

    Kroer, Niels, 1 Jan 1993, In: Limnology and Oceanography. 38, 6, p. 1282-1290 9 p.

    Research output: Contribution to journal › Comment/debate › Research › peer-review

  9. Dissolved free amino acids, combined amino acids, and DNA as sources of carbon and nitrogen to marine bacteria

    Jorgensen, N. O. G., Kroer, Niels, Coffin, R. B., Xiao-Hua Yang, Y. & Lee, C., 1 Jan 1993, In: Marine Ecology Progress Series. 98, 1-2, p. 135-148 14 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  10. 1994

  11. Comparison of microbial trophic interactions in aquatic microcosms designed for the testing of introduced microorganisms

    Kroer, Niels, Coffin, R. B. & Jørgensen, N. O. G., 1 Jan 1994, In: Environmental Toxicology and Chemistry. 13, 2, p. 247-257 11 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  12. Relationships between biovolume and carbon and nitrogen content of bacterioplankton

    Kroer, Niels, 1 Jan 1994, In: FEMS Microbiology Ecology. 13, 3, p. 217-223 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  13. Utilization of dissolved nitrogen by heterotrophic bacterioplankton: A comparison of three ecosystems

    Kroer, Niels, Jorgensen, N. O. G. & Coffin, R. B., 1 Jan 1994, In: Applied and Environmental Microbiology. 60, 11, p. 4116-4123 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  14. Utilization of dissolved nitrogen by heterotrophic bacterioplankton: Effect of substrate C/N ratio

    Jorgensen, N. O. G., Kroer, Niels & Coffin, R. B., 1 Jan 1994, In: Applied and Environmental Microbiology. 60, 11, p. 4124-4133 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  15. Utilization of Dissolved Nitrogen by Heterotrophic Bacterioplankton - A Comparison of 3 Ecosystems

    Kroer, Niels, Jorgensen, N. O. G. & Coffin, R. B., Nov 1994, In: Applied and Environmental Microbiology. 60, 11, p. 4116-4123

    Research output: Contribution to journal › Journal article › Research › peer-review

  16. 1995
  17. Published

    Conjugal gene transfer in the rhizosphere: effects of rost exuclates and bacterial metabolic activity (abstract P2.16.9)

    Kroer, Niels, Barkay, T., Sørensen, S. & Weber, D., 1995, 7th International Symposium om microbial ecology. Santos - São Paulo, Brazil, p. 147

    Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

  18. Published

    Conjugal transfer at natural population densities in a microcosm simulating an estuarine environment

    Barkay, T., Kroer, Niels, Rasmussen, L. D. & Sørensen, S., 1995, In: FEMS Microbiology Ecology. 16, p. 43-54

    Research output: Contribution to journal › Journal article › Research

  19. 1996
  20. Published

    Effects of viruses on nutrient turnover and growth efficiency of noninfected marine bacterioplankton

    Middelboe, Mathias, Jørgensen, Niels O. G. & Kroer, Niels, 1996, In: Applied and Environmental Microbiology. 62, 6, p. 1991-1997 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  21. 1998
  22. Published

    Effect of root exudates and bacterial metabolic activity on conjugal gene transfer in the rhizosphere of a marsch plant

    Kroer, Niels, Barkay, T., Sørensen, Søren Johannes & Weber, D., 1998, In: FEMS Microbiology Ecology. 25, p. 375-384

    Research output: Contribution to journal › Journal article › Research

  23. Published

    Effect of root exudates and bacterial metabolic activity on conjugal gene transfer in the rhizosphere of a marsh plant

    Kroer, Niels, Barkay, T., Sørensen, Søren Johannes & Weber, D., 1998, In: FEMS Microbiology Ecology. 25, 4, p. 375-384 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  24. Published

    Influence of sediment on pelagic carbon and nitrogen turnover in a shallow Danish estuary

    Middelboe, Mathias, Kroer, Niels, Jørgensen, N. O. G. & Pakulski, D., 1998, In: Microbial Ecology. 14, p. 81-90

    Research output: Contribution to journal › Journal article › Research › peer-review

  25. Effect of bacterial distribution and activity on conjugal gene transfer on the phylloplane of the bush bean (Phaseolus vulgaris)

    Normander, B., Christensen, B. B., Molin, S. & Kroer, Niels, 1 May 1998, In: Applied and Environmental Microbiology. 64, 5, p. 1902-1909 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  26. 1999
  27. Published

    Relations between bacterial nitrogen metabolism and growth efficiency in an estuarine and an open-water ecosystem

    Jørgensen, Niels O. G., Kroer, Niels, Coffin, R. B. & Hoch, M. P., 1999, In: Aquatic Microbial Ecology. 18, p. 247-261 15 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  28. 2000
  29. Published

    A new method for determining the metabolic activity of specific bacterial populations in soil using tritiated leucine and immunomagnetic separation

    Sengeløv, G., Sørensen, Søren Johannes, Frette, L. & Kroer, Niels, 2000, In: Biology and Fertility of Soils. 32, 3, p. 202-208

    Research output: Contribution to journal › Journal article › Research › peer-review

  30. 2001
  31. Published

    Effect of genomic location on horizontal transfer of a recombinant gene cassette between Pseudomonas strains in the rhizosphere and spermosphere of barley seedlings

    Sengeløv, G., Kristensen, K. J., Sørensen, A. M. H., Kroer, Niels & Sørensen, Søren Johannes, 2001, In: Current Microbiology. 42, p. 160-167

    Research output: Contribution to journal › Journal article › Research › peer-review

  32. Effect of plant species on the kinetics of conjugal transfer in the rhizosphere and relation to bacterial metabolic activity

    Schwaner, N. E. & Kroer, Niels, 29 Dec 2001, In: Microbial Ecology. 42, 3, p. 458-465 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  33. 2003
  34. Published

    Plasmid transfer from Pseudomonas putida to the indigenous bacteria on alfalfa sprouts: Characterization, direct quantification, and in situ location of transconjugant cells

    Mølbak, L., Licht, T. R., Kvist, T., Kroer, Niels & Andersen, S. R., 1 Sep 2003, In: Applied and Environmental Microbiology. 69, 9, p. 5536-5542 7 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  35. 2004
  36. Published

    Functional characteristics of culturable bacterioplankton from marine and estuarine environments

    Frette, L., Johnsen, K., Jørgensen, Niels O. G., Nybroe, O. & Kroer, Niels, 2004, In: International Microbiology. 7, 3, p. 219-227 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  37. Published

    Plasmid transfer in aquatic environments. Molecular Microbial Ecology Manual

    Sørensen, Søren Johannes (ed.), Øregaard, G. (ed.), De Lipthay, J. R. (ed.) & Kroer, Niels (ed.), 2004, The Netherlands: Kluwer Academic Publishers.

    Research output: Book/Report › Book › Research

  38. Published

    Tenacibaculum skagerrakense sp. nov., a marine bacterium isolated from the pelagic zone in Skagerrak, Denmark

    Frette, L., Jørgensen, Niels O. G., Irming, H. & Kroer, Niels, 2004, In: International Journal of Systematic and Evolutionary Microbiology. 54, p. 519-524 6 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  39. Effect of selective pressure and Genetically Engineered Microorganism (GEM) Densities on Mercury Resistance (mer) operon transfer in elbe river and estuarine sediments

    Pauling, B. V., Kroer, Niels & Wagner-Döbler, I., 1 Jun 2004, In: Environmental Practice. 6, 2, p. 176-190 15 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  40. Transcriptional regulation of pWW0 transfer genes in Pseudomonas putida KT2440

    Lambertsen, L. M., Molin, S., Kroer, Niels & Thomas, C. M., 1 Nov 2004, In: Plasmid. 52, 3, p. 169-181 13 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  41. 2005
  42. Published

    Studying plasmid horizontal transfer in situ: a critical review

    Sørensen, Søren Johannes, Bailey, M., Hansen, Lars Hestbjerg, Kroer, Niels & Wuertz, S., 2005, In: Nature Reviews. Microbiology. 3, 9, p. 700-710

    Research output: Contribution to journal › Review › Research

  43. Published

    Luteibacter rhizovicinus gen. nov., sp. nov., a yellow-pigmented gammaproteobacterium isolated from the rhizosphere of barley (Hordeum vulgare L.)

    Johansen, J. E., Binnerup, S. J., Kroer, Niels & Mølbak, L., 1 Nov 2005, In: International Journal of Systematic and Evolutionary Microbiology. 55, 6, p. 2285-2291 7 p., 63497.

    Research output: Contribution to journal › Journal article › Research › peer-review

  44. 2006
  45. Published

    Cultivation-independent examination of horizontal transfer and host range of an IncP-1 plasmid among gram-positive and gram-negative bacteria indigenous to the barley rhizosphere

    Musovic, S., Oregaard, G., Kroer, Niels & Sørensen, Søren Johannes, 2006, In: Applied and Environmental Microbiology. 72, 10, p. 6687-6692 6 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  46. 2007

  47. Root growth and exudate production define the frequency of horizontal plasmid transfer in the Rhizosphere

    Mølbak, L., Molin, S. & Kroer, Niels, 1 Jan 2007, In: FEMS Microbiology Ecology. 59, 1, p. 167-176 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  48. Effects of stress and other environmental factors on horizontal plasmid transfer assessed by direct quantification of discrete transfer events

    Johnsen, A. R. & Kroer, Niels, 1 Mar 2007, In: FEMS Microbiology Ecology. 59, 3, p. 718-728 11 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  49. 2008
  50. Published

    Acclimation of subsurface microbial communities to mercury

    de Lipthay, J. R., Rasmussen, L. D., Øregaard, G., Simonsen, K., Bahl, M. I., Kroer, Niels & Sørensen, Søren Johannes, 2008, In: FEMS Microbiology Ecology. 65, 1, p. 145-55 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  51. Published

    Cultivation of hard-to-culture subsurface mercury-resistant bacteria and discovery of new merA gene sequences

    Rasmussen, L. D., Zawadsky, C., Binnerup, S. J., Øregaard, G., Sørensen, Søren Johannes & Kroer, Niels, 2008, In: Applied and Environmental Microbiology. 74, 12, p. 3795-803 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  52. 2009
  53. Published

    Effect of availability of nitrogen compounds on community structure of aquatic bacteria in model systems

    Frette, L., Jørgensen, Niels O. G., Nybroe, O., Giorgio, P. A. D. & Kroer, Niels, 2009, In: Microbial Ecology. 57, 1, p. 104-116 13 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  54. 2010

  55. Genetic and metabolic diversity of arctic bacterioplankton during the post-spring phytoplankton bloom in Disko Bay, western Greenland

    Frette, L., Winding, A. & Kroer, Niels, 4 May 2010, In: Aquatic Microbial Ecology. 60, 1, p. 29-41 13 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  56. 2011
  57. Published

    Diversity and characterization of mercury-resistant bacteria in snow, freshwater and sea-ice brine from the High Arctic

    Møller, A., Barkay, T., Abu Al-Soud, W., Sørensen, Søren Johannes, Skov, H. & Kroer, Niels, 1 Mar 2011, In: F E M S Microbiology Ecology. 75, 3, p. 390-401 12 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  58. Some like it cold: Microbial transformations of mercury in polar regions

    Barkay, T., Kroer, Niels & Poulain, A. J., 1 Dec 2011, In: Polar Research. 30, SUPPL.1, 15 p., 15469.

    Research output: Contribution to journal › Review › Research › peer-review

  59. 2012
  60. Published

    Novel and conserved bacterial mercuric reductase genes (merA) and mercury resistance plasmids in High Arctic snow, freshwater and sea-ice brine

    Kroer, Niels, Møller, A., Barkay, T., Hansen, M. A., Norman, A., Hansen, Lars Hestbjerg & Sørensen, Søren Johannes, 2012.

    Research output: Contribution to conference › Poster › Research

  61. Published

    The fate of mercury in Arctic terrestrial and aquatic ecosystems, a review

    Douglas, T. A., Loseto, L. L., Macdonald, R. W., Outridge, P., Dommergue, A., Poulain, A., Amyot, M., Barkay, T., Berg, T., Chételat, J., Constant, P., Evans, M., Ferrari, C., Gantner, N., Johnson, M. S., Kirk, J., Kroer, N., Larose, C., Lean, D., Nielsen, T. G. & 7 others, Poissant, L., Rognerud, S., Skov, H., Sørensen, Søren Johannes, Wang, F., Wilson, S. & Zdanowicz, C. M., 2012, In: Environmental Chemistry (Online). 9, 4, p. 321-355 35 p.

    Research output: Contribution to journal › Review › Research › peer-review

  62. 2013
  63. Published

    Bacterial community structure in High-Arctic snow and freshwater as revealed by pyrosequencing of 16S rRNA genes and cultivation

    Møller, A. K., Søborg, D. A., Abu Al-Soud, W., Sørensen, Søren Johannes & Kroer, Niels, 2013, In: Polar Research. 32, 11 p., 17390.

    Research output: Contribution to journal › Journal article › Research › peer-review

  64. Widespread occurrence of bacterial human virulence determinants in soil and freshwater environments

    Soborg, D. A., Hendriksen, N. B., Kilian, M. & Kroer, Niels, 23 Sep 2013, In: Applied and Environmental Microbiology. 79, 18, p. 5488-5497 10 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  65. 2014
  66. Published

    Mercuric reductase genes (merA) and mercury resistance plasmids in High Arctic snow, freshwater and sea-ice brine

    Møller, A. K., Barkay, T., Hansen, M. A., Norman, A., Hansen, Lars Hestbjerg, Sørensen, Søren Johannes, Boyd, E. S. & Kroer, Niels, 2014, In: FEMS Microbiology Ecology. 87, 1, p. 52-63 12 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  67. Occurrence and expression of bacterial human virulence gene homologues in natural soil bacteria

    Søborg, D. A., Hendriksen, N. B. & Kroer, Niels, 1 Nov 2014, In: FEMS Microbiology Ecology. 90, 2, p. 520-532 13 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  68. 2016
  69. Published

    Bacterial human virulence genes across diverse habitats as assessed by In silico analysis of environmental metagenomes

    Søborg, D. A., Hendriksen, N. B., Kilian, M., Christensen, Jan H. & Kroer, Niels, 2016, In: Frontiers in Microbiology. 7, 12 p., 1712.

    Research output: Contribution to journal › Journal article › Research › peer-review

  70. 2019
  71. Published

    Mechanisms of mercury resistance in High Arctic snow and freshwater bacteria

    Kroer, Niels & Maccario, L., 2019.

    Research output: Contribution to conference › Conference abstract for conference › Research

  72. 2021
  73. Published

    rhvervseventyr for life science og biotek i fare på grund af underfinansiering af universiteterne: To professorer fra Københavns Universitet opfordrer til, at den nye erhvervsstrategi for life science og biotek følges op af en strategi for offentlig forskning og uddannelse.

    Kroer, Niels & Lisby, Michael, May 2021, In: MedWatch.

    Research output: Contribution to journal › Contribution to newspaper - Feature article › Communication

  74. 2024
  75. Published

    Næste niveau for dansk life science er verdenstoppen – vi har fagligheden til at være der: Danske forskere, talenter og virksomheder har både bredden og niveauet til at gøre København til det næste Kendall Square. Biologisk Institut står på spring i startklodserne.

    Kroer, Niels, 12 Jan 2024, In: MedWatch.

    Research output: Contribution to journal › Contribution to newspaper - Newspaper article › Communication

ID: 148203197