Niels Kroer

Niels Kroer

Head of Department


  1. 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 journalJournal articleResearchpeer-review

  2. 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 journalJournal articleResearchpeer-review

  3. 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 journalJournal articleResearchpeer-review

  4. 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 journalComment/debateResearchpeer-review

  5. 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 journalJournal articleResearchpeer-review

  6. 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 journalJournal articleResearchpeer-review

  7. 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 proceedingBook chapterResearch

  8. 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 journalJournal articleResearch

  9. 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 journalJournal articleResearchpeer-review

  10. 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 journalJournal articleResearchpeer-review

  11. 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 journalJournal articleResearchpeer-review

  12. 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 journalJournal articleResearchpeer-review

  13. 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 journalJournal articleResearchpeer-review

  14. 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 journalJournal articleResearchpeer-review

  15. 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 journalJournal articleResearchpeer-review

  16. 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 journalJournal articleResearchpeer-review

  17. 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 journalJournal articleResearchpeer-review

  18. 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 journalJournal articleResearch

  19. 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 journalJournal articleResearchpeer-review

  20. 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 journalJournal articleResearchpeer-review

  21. 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 journalJournal articleResearchpeer-review

  22. 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 journalJournal articleResearchpeer-review

  23. 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 journalJournal articleResearchpeer-review

  24. 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 journalJournal articleResearchpeer-review

  25. 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 journalJournal articleResearchpeer-review

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