Pål Jarle Johnsen
Øyvind Myrvoll Lorentzen,
Sören Abel,
Pål Jarle Johnsen,
Christopher Frøhlich
:
Biofilm selection constitutively activates c-di-GMP synthesis by the bifunctional enzyme MbaA
Sergio Arredondo Alonso,
Anna Kaarina Pöntinen,
João Alves Gama,
Rebecca Ashley Gladstone,
Klaus Harms,
Gerry Tonkin-Hill
et al.:
Plasmid-driven strategies for clone success in Escherichia coli
Anna Kaarina Pöntinen,
Rebecca Ashley Gladstone,
Henri Pesonen,
Maiju Pesonen,
Francois Pierre Alexandre Cleon,
Benjamin J Parcell
et al.:
Modulation of multidrug-resistant clone success in Escherichia coli populations: a longitudinal, multi-country, genomic and antibiotic usage cohort study
Øyvind Myrvoll Lorentzen,
Anne Sofie B. Haukefer,
Pål Jarle Johnsen,
Christopher Frøhlich
:
The Biofilm Lifestyle Shapes the Evolution of β-Lactamases
Christopher Frøhlich,
H. Adrian Bunzel,
Karol Buda,
Adrian J. Mulholland,
Marc W. van der Kamp,
Pål Jarle Johnsen
et al.:
Epistasis arises from shifting the rate-limiting step during enzyme evolution of a β-lactamase
Mikkel Meyn Liljegren,
João Alves Gama,
Pål Jarle Johnsen,
Klaus Harms
:
Plasmids affect microindel mutations in Acinetobacter baylyi ADP1
Mikkel Meyn Liljegren,
João Alves Gama,
Pål Jarle Johnsen,
Klaus Harms
:
The recombination initiation functions DprA and RecFOR suppress microindel mutations in Acinetobacter baylyi ADP1
Macaulay Winter,
Michiel Vos,
Angus Buckling,
Pål Jarle Johnsen,
Klaus Harms
:
Effect of chemotherapeutic agents on natural transformation frequency in Acinetobacter baylyi
Sergio Arredondo Alonso,
Rebecca Ashley Gladstone,
Anna Kaarina Pöntinen,
João Alves Gama,
Anita C. Schürch,
Val F. Lanza
et al.:
Mge-cluster: a reference-free approach for typing bacterial plasmids
Macaulay Winter,
Klaus Harms,
Pål Jarle Johnsen,
Angus Buckling,
Michiel Vos
:
Testing for the fitness benefits of natural transformation during community-embedded evolution
Macaulay Winter,
Klaus Harms,
Pål Jarle Johnsen,
Michiel Vos
:
Collection of Annotated Acinetobacter Genome Sequences
Sergio Arredondo Alonso,
George Blundell-Hunter,
Zuyi Fu,
Rebecca Ashley Gladstone,
Alfred Fillol-Salom,
Jessica Loraine
et al.:
Evolutionary and functional history of the Escherichia coli K1 capsule
Tommi Mäklin,
Harry Arthur Frank Wright Thorpe,
Anna Kaarina Pöntinen,
Rebecca Ashley Gladstone,
Yan Shao,
Maiju Pesonen
et al.:
Strong pathogen competition in neonatal gut colonisation
Vidar Sørum,
Emma Lu Øynes,
Anna Sollied Møller,
Klaus Harms,
Ørjan Samuelsen,
Nicole L. Podnecky
et al.:
Evolutionary Instability of Collateral Susceptibility Networks in Ciprofloxacin-Resistant Clinical Escherichia coli Strains
Macaulay Winter,
Angus Buckling,
Klaus Harms,
Pål Jarle Johnsen,
Michiel Vos
:
Antimicrobial resistance acquisition via natural transformation: context is everything
Rebecca Ashley Gladstone,
Alan McNally,
Anna Kaarina Pöntinen,
Gerry Tonkin-Hill,
John A. Lees,
Kusti Onni Skytén
et al.:
Emergence and dissemination of antimicrobial resistance in Escherichia coli causing bloodstream infections in Norway in 2002–17: a nationwide, longitudinal, microbial population genomic study
Jonina Gudmundsdottir,
Elizabeth G. Aarag Fredheim,
Catharina I.M. Koumans,
Joachim Hegstad,
Po-Cheng Tang,
Dan I. Andersson
et al.:
The chemotherapeutic drug methotrexate selects for antibiotic resistance
Christopher Frøhlich,
João Alves Gama,
Klaus Harms,
Viivi H. A. Hirvonen,
Bjarte Aarmo Lund,
Marc W. van der Kamp
et al.:
Cryptic β-Lactamase Evolution Is Driven by Low β-Lactam Concentrations
Julia Kloos,
João A Gama,
Joachim Hegstad,
Ørjan Samuelsen,
Pål J Johnsen
:
Piggybacking on Niche Adaptation Improves the Maintenance of Multidrug-Resistance Plasmids
Pål Jarle Johnsen,
João Alves Gama,
Klaus Harms
:
Bacterial evolution on demand
Sergio Arredondo Alonso,
Anna Kaarina Pöntinen,
Francois Pierre Alexandre Cleon,
Rebecca Ashley Gladstone,
Anita C. Schürch,
Pål Jarle Johnsen
et al.:
A high-throughput multiplexing and selection strategy to complete bacterial genomes
Julia Maria Kloos,
Joao Pedro Alves Gama,
Pål Jarle Johnsen,
Ørjan Samuelsen
:
Host dependent maintenance of a blaNDM-1-encoding plasmid in clinical Escherichia coli isolates
Joao Pedro Alves Gama,
Julia Maria Kloos,
Pål Jarle Johnsen,
Ørjan Samuelsen
:
Host dependent maintenance of a blaNDM-1-encoding plasmid in clinical Escherichia coli isolates
Julia Maria Kloos,
Pål Jarle Johnsen,
Klaus Harms
:
Tn1 transposition in the course of natural transformation enables horizontal antibiotic resistance spread in Acinetobacter baylyi
Christopher Frøhlich,
Vidar Sørum,
Ane Molden Thomassen,
Pål Jarle Johnsen,
Hanna-Kirsti S. Leiros,
Ørjan Samuelsen
:
OXA-48-Mediated Ceftazidime-Avibactam Resistance Is Associated with Evolutionary Trade-Offs
Øyvind Myrvoll Lorentzen,
Sören Abel,
Pål Jarle Johnsen,
Christopher Frøhlich
:
Biofilm selection constitutively activates c-di-GMP synthesis by the bifunctional enzyme MbaA
26. Nov 2025 ARKIV
Christopher Frøhlich,
H. Adrian Bunzel,
Karol Buda,
Adrian J. Mulholland,
Marc W. van der Kamp,
Pål Jarle Johnsen
et al.:
Correction to: Epistasis arises from shifting the rate-limiting step during enzyme evolution of a β-lactamase (Nature Catalysis, (2024), 10.1038/s41929-024-01117-4)
Jónína Guðmundsdóttir,
Pål Jarle Johnsen
:
Cancer drugs as drivers of antibiotic resistance
UiT Norges arktiske universitet 15. Sep 2023 ARKIV
Christopher Frøhlich,
Adrian Bunzel,
Karol Buda,
Pål Jarle Johnsen,
Nobuhiko Tokuriki
:
Divergent genetic evolution employs the same molecular mechanisms
2023 ARKIV
Øyvind Myrvoll Lorentzen,
João Alves Gama,
Klaus Harms,
Sören Abel,
Pål Jarle Johnsen
:
Genetic conflict between the SXT-element and a multidrug resistance plasmid in Vibrio cholerae
2023 ARKIV
Øyvind Myrvoll Lorentzen,
Christopher Fröhlich,
Anne Sofie Haukefer,
Sören Abel,
Pål Jarle Johnsen
:
Evolution of Vibrio cholerae biofilms
2023 ARKIV
Øyvind Myrvoll Lorentzen,
João Alves Gama,
Klaus Harms,
Sören Abel,
Pål Jarle Johnsen
:
Genetic conflict between the SXT-element and a multidrug resistance plasmid in Vibrio cholerae
2023 ARKIV
Øyvind Myrvoll Lorentzen,
Sören Abel,
Pål Jarle Johnsen
:
Evolution of Vibrio cholerae biofilms
2022 ARKIV
Christopher Frøhlich,
Adrian H. Bunzel,
Marc W. Van Der Kamp,
Adrian J. Mulholland,
Hanna-Kirsti Schrøder Leiros,
Pål Jarle Johnsen
et al.:
Positive epistasis drives the molecular evolution of the carbapenemase OXA-48
2022 ARKIV
Klara Stensvåg,
Arnfinn Sundsfjord,
Pål Jarle Johnsen,
Hanna-Kirsti S. Leiros,
Lise Nordgård
:
CANS - Centre for New Antibacterial Strategies
2022 ARKIV
Pål Jarle Johnsen,
Elizabeth G Aarag Fredheim,
Ørjan Samuelsen,
Klaus Harms
:
The role of drugs used in cancer chemotherapy as drivers of antibiotic resistance evolution in Escherichia coli
2022 ARKIV
Julia Maria Kloos,
Lea Jänisch,
Anna Kaarina Pöntinen,
Ørjan Samuelsen,
Pål Jarle Johnsen,
Jukka Corander
et al.:
Different metabolic proficiency among dominant ExPEC lineages
2022 ARKIV
Rebecca Ashley Gladstone,
Alan McNally,
Pål Jarle Johnsen,
Ørjan Samuelsen,
Jukka Corander
:
Antimicrobial resistance genes and clonal success in Escherichia coli isolates causing bloodstream infection – Authors’ reply
Julia Maria Kloos,
Joao Pedro Alves Gama,
Joachim Hegstad,
Ørjan Samuelsen,
Pål Jarle Johnsen
:
E. coli Niche Adaptation Improves Plasmid Maintenance
2021 ARKIV
João Alves Gama,
Julia Maria Kloos,
Joachim Hegstad,
Ørjan Samuelsen,
Pål Jarle Johnsen
:
Plasmid cost alleviation as a consequence of niche-adaptation
2021 ARKIV
Julia Maria Kloos,
João Alves Gama,
Joachim Hegstad,
Ørjan Samuelsen,
Pål Jarle Johnsen
:
Plasmid Cost Alleviation By Hitchhiking On Niche-adaptation
2021 ARKIV
Sybil Akua Okyerewa Obuobi,
Kjersti Julin,
Elizabeth G. Aarag Fredheim,
Pål Jarle Johnsen,
Mona Johannessen,
Natasa Skalko-Basnet
:
Liposomal delivery of antibiotic loaded DNA nanogels against intracellular infections
2020 ARKIV
Vidar Sørum,
Anna Sollied Møller,
Sören Abel,
Ørjan Samuelsen,
Nicole L. Podnecky,
Pål Jarle Johnsen
:
Evolutionary stability of collateral effects in ciprofloxacin resistant clinical Escherichia coli strains
2019 ARKIV
Vidar Sørum,
Anna Sollied Møller,
Pål Jarle Johnsen,
Ørjan Samuelsen,
Sören Abel,
Nicole L. Podnecky
:
Evolutionary stability of collateral effects in ciprofloxacin resistant clinical Escherichia coli strains
2019 ARKIV
Vidar Sørum,
Emma Lu Øynes,
Anna Møller,
Nicole L. Podnecky,
Sören Abel,
Ørjan Samuelsen
et al.:
Evolutionary stability of collateral susceptibility networks in clinical Escherichia coli strains
2019 ARKIV
Christopher Frøhlich,
Pål Jarle Johnsen,
Hanna-Kirsti Schrøder Leiros,
Ørjan Samuelsen
:
Evolution of OXA-48 under sub-MIC conditions
2019 ARKIV
Elizabeth G. Aarag Fredheim,
Nicole Podnecky,
Angie Carola Alarcon Rios,
Jessica Nguyen Tran,
Chantal Verstappen,
Klaus Harms
et al.:
Gentamicin collateral sensitivity of ciprofloxacin resistant Escherichia coli is opposed by the rapid development of gentamicin resistance
2019 ARKIV
Christopher Frøhlich,
Hanna-Kirsti S. Leiros,
Pål Jarle Johnsen,
Ørjan Samuelsen
:
Sub-inhibitory concentrations of ceftazidime drive evolution of the OXA-48 carbapenemase
2019 ARKIV
Julia Maria Kloos,
Joao Pedro Alves Gama,
Ørjan Samuelsen,
Pål Jarle Johnsen
:
Klebsiella pneumoniae MDR-encoding plasmids in clinical isolates of uropathogenic Escherichia coli: plasmid-host co-evolution and its effect on fitness cost of plasmid-mediated resistance
2018 ARKIV
Julia Maria Kloos,
Joao Pedro Alves Gama,
Ørjan Samuelsen,
Pål Jarle Johnsen
:
Plasmid-host co-evolution of Klebsiella pneumoniae MDR-encoding plasmids in clinical isolates of uropathogenic Escherichia coli: effect on fitness cost of plasmid-mediated resistance
2018 ARKIV
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