Niels Kroer

Search results

• 2024

  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, N., 12 Jan 2024, In: MedWatch.

  Research output: Contribution to journal › Contribution to newspaper - Newspaper article › Communication
• 2021

  Erhvervseventyr for life science og biotek i fare på grund af underfinansiering af universiteterne

  Kroer, N. & Lisby, M., 7 May 2021, In: MedWatch. 1 p.

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

  Open Access
• 2019

  Mechanisms of mercury resistance in High Arctic snow and freshwater bacteria

  Kroer, N. & Maccario, L., 2019.

  Research output: Contribution to conference › Conference abstract for conference › Research
• 2016

  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, J. H. & Kroer, N., 2016, In: Frontiers in Microbiology. 7, 12 p., 1712.

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

  Open Access

  File
  7 Citations (Scopus)

  224 Downloads (Pure)
• 2014

  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, L. H., Sørensen, S. J., Boyd, E. S. & Kroer, N., 2014, In: FEMS Microbiology Ecology. 87, 1, p. 52-63 12 p.

  Research output: Contribution to journal › Journal article › Research › peer-review
  67 Citations (Scopus)

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

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

  Research output: Contribution to journal › Journal article › Research › peer-review
  7 Citations (Scopus)
• 2013

  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, S. J. & Kroer, N., 2013, In: Polar Research. 32, 11 p., 17390.

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

  Open Access

  File
  70 Citations (Scopus)

  1499 Downloads (Pure)

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

  Soborg, D. A., Hendriksen, N. B., Kilian, M. & Kroer, N., 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
  24 Citations (Scopus)
• 2012

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

  Kroer, N., Møller, A., Barkay, T., Hansen, M. A., Norman, A., Hansen, L. H. & Sørensen, S. J., 2012.

  Research output: Contribution to conference › Poster › Research

• 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, S. J., 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
  115 Citations (Scopus)
• 2011

  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, S. J., Skov, H. & Kroer, N. A., 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
  77 Citations (Scopus)

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

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

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

  Open Access

  File
  24 Citations (Scopus)

  14 Downloads (Pure)
• 2010

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

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

  Research output: Contribution to journal › Journal article › Research › peer-review
  5 Citations (Scopus)
• 2009

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

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

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

  File
  5 Citations (Scopus)
• 2008

  Acclimation of subsurface microbial communities to mercury

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

  Research output: Contribution to journal › Journal article › Research › peer-review
  17 Citations (Scopus)

• 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, S. J. & Kroer, N., 2008, In: Applied and Environmental Microbiology. 74, 12, p. 3795-803 8 p.

  Research output: Contribution to journal › Journal article › Research › peer-review
  50 Citations (Scopus)
• 2007

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

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

  Research output: Contribution to journal › Journal article › Research › peer-review
  60 Citations (Scopus)

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

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

  Research output: Contribution to journal › Journal article › Research › peer-review
  70 Citations (Scopus)
• 2006

  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, N. & Sørensen, S. J., 2006, In: Applied and Environmental Microbiology. 72, 10, p. 6687-6692 6 p.

  Research output: Contribution to journal › Journal article › Research › peer-review
  92 Citations (Scopus)
• 2005

  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, N. & 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
  48 Citations (Scopus)

• Studying plasmid horizontal transfer in situ: a critical review

  Sørensen, S. J., Bailey, M., Hansen, L. H., Kroer, N. & Wuertz, S., 2005, In: Nature Reviews. Microbiology. 3, 9, p. 700-710

  Research output: Contribution to journal › Review › Research
  568 Citations (Scopus)
• 2004

  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, N. & 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
  1 Citation (Scopus)

• Functional characteristics of culturable bacterioplankton from marine and estuarine environments

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

  Research output: Contribution to journal › Journal article › Research › peer-review
  22 Citations (Scopus)

• Plasmid transfer in aquatic environments. Molecular Microbial Ecology Manual

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

  Research output: Book/Report › Book › Research

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

  Frette, L., Jørgensen, N. O. G., Irming, H. & Kroer, N., 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

  56 Citations (Scopus)

• Transcriptional regulation of pWW0 transfer genes in Pseudomonas putida KT2440

  Lambertsen, L. M., Molin, S., Kroer, N. & 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
  11 Citations (Scopus)
• 2003

  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, N. & 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
  60 Citations (Scopus)
• 2001

  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, N. & Sørensen, S. J., 2001, In: Current Microbiology. 42, p. 160-167

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

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

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

  Research output: Contribution to journal › Journal article › Research › peer-review
  21 Citations (Scopus)
• 2000

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

  Sengeløv, G., Sørensen, S. J., Frette, L. & Kroer, N., 2000, In: Biology and Fertility of Soils. 32, 3, p. 202-208

  Research output: Contribution to journal › Journal article › Research › peer-review
  4 Citations (Scopus)
• 1999

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

  Jørgensen, N. O. G., Kroer, N., 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

  54 Citations (Scopus)
• 1998

  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, N., 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

  144 Citations (Scopus)

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

  Kroer, N., Barkay, T., Sørensen, S. J. & Weber, D., 1998, In: FEMS Microbiology Ecology. 25, p. 375-384

  Research output: Contribution to journal › Journal article › Research

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

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

  Research output: Contribution to journal › Journal article › Research › peer-review
  65 Citations (Scopus)

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

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

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

  35 Citations (Scopus)
• 1996

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

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

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

  203 Citations (Scopus)
• 1995

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

  Kroer, N., 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

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

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

  Research output: Contribution to journal › Journal article › Research

  26 Citations (Scopus)
• 1994

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

  Kroer, N., 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
  4 Citations (Scopus)

• Relationships between biovolume and carbon and nitrogen content of bacterioplankton

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

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

  47 Citations (Scopus)

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

  Kroer, N., 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

  83 Citations (Scopus)

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

  Jorgensen, N. O. G., Kroer, N. & 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

  48 Citations (Scopus)

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

  Kroer, N., 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
• 1993

  Bacterial growth efficiency on natural dissolved organic matter

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

  Research output: Contribution to journal › Comment/debate › Research › peer-review
  145 Citations (Scopus)

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

  Jorgensen, N. O. G., Kroer, N., 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
  150 Citations (Scopus)
• 1992

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

  Kroer, N. & 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
  11 Citations (Scopus)
• 1989

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

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

  Research output: Contribution to journal › Journal article › Research › peer-review
  15 Citations (Scopus)
• 1986

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

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

  Research output: Contribution to journal › Journal article › Research › peer-review
  10 Citations (Scopus)