Ida Kristin Hegna

Associate Professor - School of Pharmacy
Image of Ida Kristin Hegna
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Phone +47-22844934
Mobile phone 95096830 +47-95096830
Fax +47-22844944
Room 268 ZEB-bygningen
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Academic interests

For the time being I am using an Atomic Force Microscope at School of Pharmacy, to visualize the form and surface of microorganisms.

 

Tags: AFM, Microbiology, Life Science, Molecular biology

Publications

  • Brudal, Espen; Lampe, Elisabeth Opsjøn; Reubsaet, Leon; Roos, Norbert; Hegna, Ida Kristin; Thrane, Ida Marie; Koppang, Erling Olaf & Winther-Larsen, Hanne C. (2015). Vaccination with outer membrane vesicles from Francisella noatunensis reduces development of francisellosis in a zebrafish model. Fish and Shellfish Immunology.  ISSN 1050-4648.  42(1), s 50- 57 . doi: 10.1016/j.fsi.2014.10.025
  • Vörös, Aniko; Simm, Roger; Slamti, Leyla; McKay, Matthew J.; Hegna, Ida Kristin; Nielsen-Leroux, Christina; Hassan, Karl A.; Paulsen, Ian T.; Lereclus, Didier; Økstad, Ole Andreas Løchen; Molloy, Mark P. & Kolstø, Anne-Brit (2014). SecDF as part of the sec-translocase facilitates efficient secretion of Bacillus cereus toxins and cell wall-associated proteins. PLoS ONE.  ISSN 1932-6203.  9:e0103326(8) . doi: 10.1371/journal.pone.0103326
  • Austarheim, Ingvild; Christensen, Bjørn Erik; Hegna, Ida Kristin; Petersen, Bent O.; Duus, Jens O; Bye, Ragnar; Michaelsen, Terje Einar; Diallo, Drissa; Inngjerdingen, Marit & Paulsen, Berit Smestad (2012). Chemical and biological characterization of pectin-like polysaccharides from the bark of the Malian medicinal tree Cola cordifolia. Carbohydrate Polymers.  ISSN 0144-8617.  89(1), s 259- 268 . doi: 10.1016/j.carbpol.2012.03.005
  • Rukke, Håkon Valen; Hegna, Ida Kristin & Petersen, Fernanda Cristina (2012). Identification of a functional capsule locus in Streptococcus mitis. Molecular Oral Microbiology.  ISSN 2041-1006.  27(2), s 95- 108 . doi: 10.1111/j.2041-1014.2011.00635.x
  • Rukke, Håkon Valen; Hegna, Ida Kristin & Petersen, Fernanda Cristina (2011). Identification of a functional capsule locus in Streptococcus mitis. Molecular Oral Microbiology.  ISSN 2041-1006. . doi: 10.1111/j.2041-1014.2011.00635.x
  • Smistad, Gro; Nguyen, Nguyen Binh; Hegna, Ida Kristin & Sande, Sverre Arne (2011). Influence of liposomal formulation variables on the interaction with Candida albicans in biofilm; a multivariate approach. Journal of liposome research.  ISSN 0898-2104.  21(1), s 9- 16 . doi: 10.3109/08982101003629009
  • Smistad, Gro; Nguyen, Nguyen Binh; Hegna, Ida Kristin & Sande, Sverre Arne (2010). Influence of liposomal formulation variables on the interaction with Candida albicans in biofilm; a multivariate approach. Journal of liposome research.  ISSN 0898-2104. . doi: 10.3109/08982101003629009
  • Tourasse, Nicolas; Helgason, Erlendur; Økstad, Ole Andreas Løchen; Hegna, Ida Kristin & Kolstø, Anne-Brit (2006). The Bacillus cereus group: novel aspects of population structure and genome dynamics. Journal of Applied Microbiology.  ISSN 1364-5072.  101, s 579- 593
  • Risøen, Per Arne; Ronning, P; Hegna, Ida Kristin & Kolstø, Anne-Brit (2004). Characterization of a broad range antimicrobial substance from Bacillus cereus. Journal of Applied Microbiology.  ISSN 1364-5072.  96, s 648- 655
  • Hegna, Ida Kristin; Bratland, Hege & Kolstø, Anne-Brit (2001). BceS1, a new addition to the type III restriction and modification family. FEMS Microbiology Letters.  ISSN 0378-1097.  202, s 189- 193
  • Helgason, Erlendur; Økstad, Ole Andreas Løchen; Caugant, Dominique A; Johansen, Henning A.; Fouet, Agnes; Mock, Michele; Hegna, Ida Kristin & Kolstø, Anne-Brit (2000). Bacillus anthracis, Bacillus cereus and Bacillus thuringiensis - one species based on genetic evidence. Applied and Environmental Microbiology.  ISSN 0099-2240.  66, s 2627- 2630
  • Kolstø, Anne-Brit; Helgason, Erlendur; Økstad, Ole Andreas Løchen; Caugant, Dominique A; Johansen, Henning A.; Fouet, Agnes; Mock, Michele & Hegna, Ida Kristin (2000). Bacillus anthracis, Bacillus cereus and Bacillus thuringiensis - one species on the basis of genetic evidence. Applied and Environmental Microbiology.  ISSN 0099-2240.  (66), s 2627- 2630
  • Kolstø, Anne-Brit; Økstad, Ole Andreas Løchen; Hegna, Ida Kristin; Lindbäck, Toril & Rishovd, Anne-Lise (1999). Genome organization is not conserved between Bacillus cereus and Bacillus subtilis. Microbiology (Mikrobiologija).  ISSN 0026-2617.  (145), s 621- 631
  • Økstad, Ole Andreas Løchen; Hegna, Ida Kristin; Lindbäck, Toril; Rishovd, Anne-Lise & Kolstø, Anne-Brit (1999). Genome organisation is not conserved between Bacillus cereus and Bacillus subtilis. Microbiology (Mikrobiologija).  ISSN 0026-2617.  145, s 621- 631
  • Økstad, Ole Andreas Løchen; Hegna, Ida Kristin; Lindbäck, Toril; Rishovd, Anne-Lise & Kolstø, Anne-Brit (1999). Genome organization is not conserved between Bacillus cereus and Bacillus subtilis. Microbiology (Mikrobiologija).  ISSN 0026-2617.  145, s 621- 631
  • Helgason, Erlendur; Caugant, Dominique A; Lecadet, M.-M.; Chen, Ying; Mahillon, J.; Løvgren, Ann; Hegna, Ida Kristin; Kvaløy, Kirsti & Kolstø, Anne-Brit (1998). Genetic diversity of Bacillus cereus / B. thuringiensis isolates from natural sources. Current Microbiology.  ISSN 0343-8651.  (37), s 80- 87
  • Helgason, Erlendur; Caugant, Dominique A; Lecadet, M.-M.; Chen, Ying; Mahillon, J.; Løvgren, Ann; Hegna, Ida Kristin; Kvaløy, Kirsti & Kolstø, Anne-Brit (1998). Genetic diversity of Bacillus cereus/B. thuringiensis isolates from natural sources. Current Microbiology.  ISSN 0343-8651.  37, s 80- 87
  • Hegna, Ida Kristin; Karlstrøm, E.; Lopez, Rodrigo; Kristiansen, T. & Kolstø, Anne-Brit (1992). A type -III DNA restriction and modification system in Bacillus cereus?. Gene.  ISSN 0378-1119.  114, s 149- 150
  • Løberg, R.M.; Fægri, A. & Hegna, Ida Kristin (1989). Yeast suspension as soiling matter in desinfectant testing. Microbios.  ISSN 0026-2633.  s 157- 166
  • Hegna, Ida Kristin & Clausen, Ole Petter Fraas (1988). An investigation of the bactericidal and fungicidal effects of certain desinfectants by use of a capacity test. Microbiology (Mikrobiologija).  ISSN 0026-2617.  139, s 473- 483
  • Hegna, Ida Kristin (1979). Further comparison between disinfectant containing quaternary ammonium and chlorhexidine. Meddelelser fra Norsk Farmaceutisk Selskap.  ISSN 0029-1927.  41, s 169- 172
  • Løberg, R.M. & Hegna, Ida Kristin (1979). Comparative studies of two preparations containing clorhexidine and cetylpyridinium chloride. Pharm. Acta Helv..  54, s 244- 249
  • Solberg, Olav & Hegna, Ida Kristin (1979). Microbiological Assay of Pantothenic Acid. Vitamins and Coenzymes, In  Methods in Enzymology,Part D.   s 201 - 204
  • Hegna, Ida Kristin; Kardel, Kristin & Kardel, M. (1978). Autoclaving of lubricated dental instuments. Scandinavian Journal of Dental Research.  ISSN 0029-845X.  86, s 130- 134
  • Clausen, Ole Petter Fraas & Hegna, Ida Kristin (1977). Determination of the bactericidal and fungicidal effects of Alkylbenzylammonium chloride and propyleneglycol-b-phenylether, singly and in combinations. Meddelelser fra Norsk Farmaceutisk Selskap.  ISSN 0029-1927.  39, s 197- 204
  • Hegna, Ida Kristin (1977). A comparative investigation of the bactericidal and fungicidal effects of chlorhexidine and cetylpyridinium chloride. Meddelelser fra Norsk Farmaceutisk Selskap.  ISSN 0029-1927.  39, s 188- 196
  • Hegna, Ida Kristin (1977). An examination of the effect of three phenolic disinfectats on Mycobacterium tuberculosis. Journal of Applied Bacteriology.  ISSN 0021-8847.  43, s 183- 187
  • Hegna, Ida Kristin (1976). A comparative investigation of the bactericidal fand fungicidal effects of three phenolic disinfectants. Journal of Applied Bacteriology.  ISSN 0021-8847.  43, s 177- 181
  • Hegna, Ida Kristin (1976). Antibacterial in vitro effects on Corynebacterium acnes NCTC 737. Meddelelser fra Norsk Farmaceutisk Selskap.  ISSN 0029-1927.  38, s 40- 47
  • Hegna, Ida Kristin (1976). Antimicrobial effects of some bis-biguanides on certain bacteria which accur in connection with acne vurgaris. Journal of Pharmacy and Pharmacology (JPP).  ISSN 0022-3573.  28, s 261- 262
  • Hegna, Ida Kristin (1976). In vitro antibacterial effects of some bisbiguanides on certain bacteria which accur in connection with acne vulgaris. Meddelelser fra Norsk Farmaceutisk Selskap.  ISSN 0029-1927.  38, s 34- 39
  • Andersen, Solveig Norheim & Hegna, Ida Kristin (1975). An in vitro study of the bactericidal effects on Escherichia coli of some bisbiguanides in aqueous solutions with various pH values. Meddelelser fra Norsk Farmaceutisk Selskap.  ISSN 0029-1927.  37, s 283- 288
  • Clausen, Ole Petter Fraas; Hegna, Ida Kristin & Solberg, Olav (1975). Agglutination tests as an aid to the classification of Pediococci and Aerococci. Journal of the Institute of Brewing.  ISSN 0046-9750.  81, s 440- 443
  • Solberg, Olav; Hegna, Ida Kristin & Clausen, Ole Petter Fraas (1975). Pediococcus acidilactici NCIB a699, a new test organism for microbiological assaying of pantothenic acid. Journal of Applied Bacteriology.  ISSN 0021-8847.  39, s 119- 123
  • Clausen, Ole Petter Fraas; Hegna, Ida Kristin; Kjeldaas, Liv; Palmer, L.; Solberg, Olav & Tjade, O. H. (1974). Some further aspects concerning the classification of Aerococci and Pediococci. XIth Conference on the Taxonomy of Bacteria.
  • Gaudernack, Gustav; Rugstad, Hans Erik; Hegna, Ida Kristin & Prydz, Hans Peter B (1973). Synthesis of serum proteins by a clonal strain of rat heptoma cells. Experimental Cell Research.  ISSN 0014-4827.  77, s 25- 30

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  • Rukke, Håkon Valen; Hegna, Ida Kristin & Petersen, Fernanda Cristina (2011). Capsule expression in Streptococcus mitis.
  • Rukke, Håkon Valen; Hegna, Ida Kristin & Petersen, Fernanda Cristina (2011). Functional characterization of the Streptococcus mitis capsule locus.
  • Fægri, Karoline; Hegna, Ida Kristin; Økstad, Ole Andreas Løchen & Kolstø, Anne-Brit (2007). Comparative analysis of global gene expression in Bacillus cereus ATCC 14579 and a deletion mutant of a membrane transporter with similarity to tetracycline resistance genes.
  • Økstad, Ole Andreas Løchen; Tourasse, Nicolas; Hegna, Ida Kristin & Kolstø, Anne-Brit (2007). Functional and comparative genomics in pathogenic Bacillus species.
  • Hegna, Ida Kristin (2006). Atomic force microscopy used in the imaging of various aspects related to Bacillus cereus.
  • Hegna, Ida Kristin (2006). Atomic force microscopy used to visualize cell surface of bacteria.
  • Hegna, Ida Kristin (2006). Imaging of DNA, bacteria and spores by atomic force microscopy.
  • Hegna, Ida Kristin & Jaroszewicz, Ewa (2006). Atomic force microscopy used in imaging of biological samples.
  • Hegna, Ida Kristin; Jaroszewicz, Ewa & Stabell, Fredrik Bernhard (2006). Atomic Force Microscopy in Microbiology.
  • Stalheim, Torunn; Hegna, Ida Kristin; Ballance, Simon; Christensen, Bjørn Erik & Granum, Per Einar (2006). Antimicrobial activity of biopolymers isolated from Sphagnum moss.
  • Hegna, Ida Kristin; Jaroszewicz, Ewa & Kolstø, Anne-Brit (2003). BceS1, the type III Resstriction and Modification System in Bacillus cereus ATCC 10987.
  • Risøen, Per Arne; Økstad, Ole Andreas Løchen; Hegna, Ida Kristin & Kolstø, Anne-Brit (2003). Characterization of a gene cluster putatively involved in the production of an antimicrobial substance in Bacillus cereus.
  • Hegna, Ida Kristin & Kolstø, Anne-Brit (2002). Is the sefishness of the Bacillus cereus ATTC 10987 strain caused by the BceS1 type III restriction and modification system?.
  • Hegna, Ida Kristin & Kolstø, Anne-Brit (2001). A Gram negative type III restriction and modification system in a Gram positive bacterium?.
  • Hegna, Ida Kristin & Kolstø, Anne-Brit (2001). Expression of a type III restriction and modification system in Bacillus cereus.
  • Helgason, Erlendur; Økstad, Ole Andreas Løchen; Hegna, Ida Kristin; Bergan, Pål Andreas & Kolstø, Anne-Brit (2001). Genetic diversity of the Bacillus cereus group.
  • Hegna, Ida Kristin (2000). Pilletrilling, legemidler og samfunn. Hva er farmasi og hva jobber farmasøytene med? Fokus på mikrobiologi.
  • Kolstø, Anne-Brit; Helgason, Erlendur; Økstad, Ole Andreas Løchen; Johansen, Henning A.; Hegna, Ida Kristin & Caugant, Dominique A (2000). Bacillus Thuringiensis, Bacillus Cereus and Bacillus Anthracis: one species based on genetic evidence.
  • Økstad, Ole Andreas Løchen; Hegna, Ida Kristin; Lindbäck, Toril; Rishovd, Anne-Lise & Kolstø, Anne-Brit (1999). Genome organization is not conserved between Bacillus cereus and Bacillus subtilis.
  • Økstad, Ole Andreas Løchen; Hegna, Ida Kristin; Lindbäck, Toril; Rishovd, Anne-Lise & Kolstø, Anne-Brit (1999). Genome organization is not conserved between Bacillus cereus and Bacillus subtilis.
  • Hegna, Ida Kristin; Bratland, Hege & Kolstø, Anne-Brit (1999). Horizontal gene transfer between Gram positive and Gram negative bacteria?.
  • Hegna, Ida Kristin; Bratland, Hege & Kolstø, Anne-Brit (1999). Type III restriction and modification enzyme locus in Bacillus cereus?.
  • Helgason, Erlendur; Caugant, Dominique A; Hegna, Ida Kristin; Fouet, Agnes; Mock, Michele; Johansen, H A.; Økstad, Ole Andreas Løchen & Kolstø, Anne-Brit (1999). Bacillus cereus, Bacillus thuringiensis and Bacillus anthracis - one species based on genetic evidence.
  • Helgason, Erlendur; Caugant, Dominique A; Lecadet, M.-M.; Olsen, Ingar; Hegna, Ida Kristin; Kvaløy, Kirsti & Kolstø, Anne-Brit (1999). Genetic diversity and population structure of Bacillus cereus/Bacillus thuringiensis isolates from diverse sources.
  • Kolstø, Anne-Brit; Helgason, Erlendur; Caugant, Dominique A; Hegna, Ida Kristin; Fouet, Agnes; Mock, Michele; Johansen, Henning A. & Økstad, Ole Andreas Løchen (1999). Bacillus anthracis, Bacillus cereus and Bacillus thuringiensis - one species based on genetic evidence.
  • Kolstø, Anne-Brit; Helgason, Erlendur; Hegna, Ida Kristin; Johansen, Henning A.; Økstad, Ole Andreas Løchen; Caugant, Dominique A; Agnes, Fouet & Mock, Michele (1999). Bacillus Cereus, Bacillus Thuringiensis and Bacillus Anthracis-one species based on Genetic Evidence.
  • Økstad, Ole Andreas Løchen; Lindbäck, Toril; Hegna, Ida Kristin; Rishovd, Anne-Lise & Kolstø, Anne-Brit (1998). Analysis of 75kb random DNA sequence from Bacillus cereus ATCC 10987.
  • Kolstø, Anne-Brit; Økstad, Ole Andreas Løchen; Hegna, Ida Kristin; Lindbäck, Toril; Rishovd, Anne-Lise; Helgason, Erlendur; Kvaløy, Kirsti & Iversen, T.-G. (1997). Genome Analysis of Bacillus cereus and Bacillus thyringiensis.
  • Kolstø, Anne-Brit; Økstad, Ole Andreas Løchen; Hegna, Ida Kristin; Lindbäck, Toril; Rishovd, Anne-Lise; Helgason, Erlendur; Kvaløy, Kirsti & Iversen, Tor (1997). Genome Analysis of Bacillus cereus and Bacillus thuringiensis.
  • Økstad, Ole Andreas Løchen; Rishovd, Anne-Lise; Lindbäck, Toril; Hegna, Ida Kristin & Kolstø, Anne-Brit (1997). Random sequence anlysis of a Bacillus cereus genome; codon usage, GC content, and gene organization.
  • Hegna, Ida Kristin (1997). Ny kunnskap om gamle bakterier, Antibiotikabruk på ville veier.
  • Hegna, Ida Kristin; Bjørge, S. & Kolstø, Anne-Brit (1997). Analysis of a possible efflux gene in Bacillus cereus.
  • Hegna, Ida Kristin; Bjørge, S. & Kolstø, Anne-Brit (1997). Analysis of the chrA gene i Bacillus cereus.
  • Hegna, Ida Kristin; Bjørge, S.; Rishovd, Anne-Lise & Kolstø, Anne-Brit (1997). The chromate resistance gene in Bacillus cereus - a multifunctional gene?.
  • Helgason, Erlendur; Caugant, Dominique A; Lecadet, M.-M.; Hegna, Ida Kristin; Kvaløy, Kirsti & Kolstø, Anne-Brit (1997). Genetic diversity and population structure of Bacillus cereus/B.thuringiensis isolated from diverse sources.
  • Helgason, Erlendur; Cugant, D.A.; Lecadet, M.-M.; Hegna, Ida Kristin; Kvaløy, Kirsti & Kolstø, Anne-Brit (1997). Genetic diversity and population structure of Bacillus cereus/Bacillus thuringiensis isolates from natural sources in Norway.
  • Kolstø, Anne-Brit; Økstad, Ole Andreas Løchen; Hegna, Ida Kristin & Lindbäck, Toril (1996). Genome analysis of Bacillus cereus/Bacillus thuringiensis strains.
  • Hegna, Ida Kristin; Nording, M.; Rishovd, Anne-Lise & Kolstø, Anne-Brit (1996). Diversity of Bacillus cereus.
  • Hegna, Ida Kristin; Rishovd, Anne-Lise; Kolstø, Anne-Brit & Wright, Marianne (1994). Chromate resistance in Bacillus cereus ATCC 10987.
  • Hegna, Ida Kristin; Lindbäck, Toril; Lopez, Rodrigo; Kristiansen, T. & Kolstø, Anne-Brit (1993). Novel genes in Bacillus cereus.
  • Hegna, Ida Kristin & Kolstø, Anne-Brit (1993). Novel genes in Bacillus cereus ATCC10987.
  • Hegna, Ida Kristin & Clausen, Ole Petter Fraas (1980). Sårbehandling og Debrisan. Chlorhexidine and Quats. Tidsskrift for Den norske legeforening.  ISSN 0029-2001.  100, s 582- 583
  • Hegna, Ida Kristin & Clausen, Ole Petter Fraas (1979). Sårbehandling og Debrisan. Tidsskrift for Den norske legeforening.  ISSN 0029-2001.  99, s 1808
  • Kardel, Kristin; Hegna, Ida Kristin & Kardel, M. (1976). En mikrobiologisk undersøkelse over Mikro Megas E-spray. Den norske tannlegeforenings tidende.  ISSN 0029-2303.  s 259- 262

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Published Mar. 22, 2013 12:02 PM - Last modified May 16, 2013 2:07 PM