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Poster

Session: Session 2 Presenting Authors at Posters (Odds)

P-259 - Role of CYP71A27 in response to plant growth promoting and pathogenic bacteria in Arabidopsis roots

Wednesday, July 16, 2025
13:30 - 15:15  
Location: Confex Hall 3
Nutrient exchange & role of metabolites in plant-microbe interactions

    Author(s)

  • AK

    Anna Koprivova

    University of Cologne
    Köln, Nordrhein-Westfalen, Germany

  • DR

    Daniela Ristova

    University of Cologne
    Cologne, Nordrhein-Westfalen, Germany

  • MB

    Miroslav Berka

    PhD student
    Mendel University Brno
    Brno, Jihomoravsky kraj, Czech Republic

  • VB

    Veronika Berková

    Mendel University in Brno
    Brno, Jihomoravsky kraj, Czech Republic

  • GT

    Gözde Merve Türksoy (she/her/hers)

    PhD Student
    University of Cologne
    Cologne, Germany, GERMANY

  • TA

    Tonni Andersen

    Max Planck Institute for Plant Breeding
    Köln, Nordrhein-Westfalen, Germany

  • PW

    Philipp Westhoff

    Heinrich Heine University Düsseldorf
    Düsseldorf, Nordrhein-Westfalen, Germany

  • MC

    Martin Cerny

    Mendel Univserity in Brno
    Brno, Jihomoravsky kraj, Czech Republic

    • Presenting Author(s)

  • SK

    Stanislav Kopriva

    Group Leader/Prof. Dr.
    Botanical Institute, Cluster of Excellence on Plant Sciences (CEPLAS), University of Cologne, Cologne, Germany
    Köln, Nordrhein-Westfalen, Germany

One of the major challenges in the plant microbe interaction research is understanding how plants distinguish between commensal and pathogenic microorganisms. We previously showed that CYP71A27, a part of camalexin network, is necessary for a plant growth promoting (PGP) activity of several bacterial strains. To dissect its function, we compared multi-omics responses in roots of wild type Arabidopsis and the cyp71A27 mutant to a PGP Pseudomonas fluorescens CH267 and a pathogen Burkholderia glumeae PG1. We show that incubation with these bacteria leads to significant and distinct transcriptional reprogramming. This is accompanied by a proteome remodelling in both shoots and roots and alterations in accumulation of many metabolites. In cyp71a27 a large number of genes and proteins respond differently to the bacteria, particularly after interaction with the PGP strain, despite a very mild differences in root metabolites and exudates. We analysed a variety of mutants in genes differentially regulated by Pseudomonas sp. CH267 in cyp71a27 and revealed that their response to this PGP bacterial strain is similar to cyp71a27. Thus, it seems that CYP71A27 has a regulatory role, particularly in interaction of Arabidopsis with plant growth promoting bacteria.