Author

P. R. Johnston

Listed by name: these papers carry no ORCID for this author, so different people with the same name may be mixed together.

Biology Disciplines

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Evolutionary Biology· 4 Ecology· 3 Microbiology· 1

Signature Assays, Organisms & Methods

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Approach:experimental assay· 7 Research Focus:host-pathogen & immune response· 7 Organism:Drosophila· 2 Organism:E. coli· 2 Research Focus:ecology & biodiversity· 2 Assay:metagenomics· 2 Assay:proteomics· 2 Approach:statistical model· 2

Frequent Co-Authors

J. Rolff· 4 shared A. Rodriguez Rojas· 3 shared S. Mbedi· 3 shared C. Weise· 2 shared R. R. Regoes· 2 shared B. Antunes· 1 shared B. Kuropka· 1 shared B. Maron· 1 shared

Activity by Year

2019-2024 · peak 2/yr

Co-Author Collaboration Network

10 top collaborators · 17 mutual co-author links

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4 shared papersEvolutionary Biology

J. Rolff

Mutual co-authors in cluster

Author profile →

8 papers

Recent·Most cited

The evolution of antimicrobial peptide resistance in Pseudomonas aeruginosa is severely constrained by random peptide mixtures

B. Antunes, C. Zanchi, P. R. Johnston, B. Maron, C. Witzany, R. R. Regoes, Z. Hayouka, J. Rolff

This study shows that random antimicrobial peptide mixtures reduce resistance evolution in Pseudomonas aeruginosa compared to single peptides, preventing cross-resistance and maintaining drug sensitivity.

bioRxiv · Feb 22, 2024 · PreprintMicrobiology

Microbial Associates of the Elm Leaf Beetle: Uncovering the Absence of Resident Bacteria and the Influence of Fungi on Insect Performance

J. Schott, J. Rakei, M. N. Remus-Emsermann, P. R. Johnston, S. Mbedi, S. Sparmann, M. Hilker, L. R. Paniagua Voirol

This study investigates microbial associates of the elm leaf beetle, finding no resident bacteria but persistent fungi that may benefit the insect's performance.

bioRxiv · Jun 23, 2023Ecology

IMMUNE GENE REGULATION IN THE GUT DURING METAMORPHOSIS IN TWO HOLO- VERSUS A HEMIMETABOLOUS INSECT

C. Manthey, P. R. Johnston, J. Rolff

This study compares immune gene expression in the gut during metamorphosis in holometabolous and hemimetabolous insects, finding that only holometabolous insects show high immune effector expression during larval-pupal moult.

bioRxiv · Jun 26, 2022 · PreprintEvolutionary Biology

Eating in a losing cause: limited benefit of modified macronutrient consumption following infection in the oriental cockroach Blatta orientalis

T. Sieksmeyer, S. He, M. A. Esparza-Mora, S. Jiang, V. Petrasiunaite, B. Kuropka, R. Banasiak, M. J. Julseth, C. Weise, P. R. Johnston, A. Rodriguez Rojas, D. McMahon

This study investigates how bacterial infection affects macronutrient consumption and immunity in Blatta orientalis cockroaches, finding limited immune benefits from dietary shifts.

BMC Ecology and Evolution · May 18, 2022Peer-reviewedEcology

Bacteria primed by antimicrobial peptides develop tolerance and persist

A. Rodriguez Rojas, D. Y. Baeder, P. R. Johnston, R. R. Regoes, J. Rolff

This study shows that prior exposure to sublethal doses of antimicrobial peptides increases bacterial survival and promotes resistance evolution in E. coli through mechanisms like curli or colanic acid production.

bioRxiv · May 19, 2020Evolutionary Biology

Non-lethal exposure to H2O2 boosts bacterial survival and evolvability against oxidative stress

A. Rodriguez Rojas, J. Kim, P. R. Johnston, O. Makarova, M. Eravci, C. Weise, R. Hengge, J. Rolff

This study shows that non-lethal H2O2 exposure primes bacterial survival and accelerates evolution of resistance to oxidative stress.

bioRxiv · Mar 7, 2020Evolutionary Biology

The effects of arbuscular mycorrhizal fungi (AMF) and Rhizophagus irregularis on soil microorganisms assessed by metatranscriptomics and metaproteomics

D. Lammel, D. Meierhofer, P. R. Johnston, S. Mbedi, M. C. Rillig

This study investigates how AMF and Rhizophagus irregularis influence soil microorganisms using metatranscriptomics and metaproteomics, revealing their role in soil metabolism and nutrient cycling.

bioRxiv · Dec 10, 2019 · PreprintEcology

Mating changes the genital microbiome in both sexes of the common bedbug Cimex lectularius across populations

S. Bellinvia, P. R. Johnston, S. Mbedi, O. Otti

The paper examines how mating alters genital microbiomes in male and female bedbugs across populations, showing sexual transmission and population/sex-specific variations.

bioRxiv · Oct 28, 2019Evolutionary Biology