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The receptor kinase SRF3 coordinates iron-level and flagellin dependent defense and growth responses in plants

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  • Matthieu Pierre Platre

    (Plant Molecular and Cellular Biology Laboratory)

  • Santosh B. Satbhai

    (Plant Molecular and Cellular Biology Laboratory
    Austrian Academy of Sciences, Vienna Biocenter (VBC)
    Indian Institute of Science Education and Research)

  • Lukas Brent

    (Plant Molecular and Cellular Biology Laboratory)

  • Matias F. Gleason

    (Plant Molecular and Cellular Biology Laboratory)

  • Min Cao

    (Plant Molecular and Cellular Biology Laboratory)

  • Magali Grison

    (University of Bordeaux, CNRS, Laboratoire de Biogenèse Membranaire, UMR 5200 CNRS)

  • Marie Glavier

    (University of Bordeaux, CNRS, Laboratoire de Biogenèse Membranaire, UMR 5200 CNRS)

  • Ling Zhang

    (Plant Molecular and Cellular Biology Laboratory)

  • Christophe Gaillochet

    (Plant Molecular and Cellular Biology Laboratory)

  • Christian Goeschl

    (Austrian Academy of Sciences, Vienna Biocenter (VBC))

  • Marco Giovannetti

    (Austrian Academy of Sciences, Vienna Biocenter (VBC))

  • Balaji Enugutti

    (Austrian Academy of Sciences, Vienna Biocenter (VBC))

  • Julie Neveu

    (UMR5546 CNRS/Université Toulouse 3)

  • Marcel Reth

    (Max Planck Institute for Plant Breeding Research)

  • Ruben Alcázar

    (Max Planck Institute for Plant Breeding Research)

  • Jane E. Parker

    (Max Planck Institute for Plant Breeding Research
    Cologne-Düsseldorf Cluster of Excellence on Plant Sciences (CEPLAS))

  • Grégory Vert

    (UMR5546 CNRS/Université Toulouse 3)

  • Emmanuelle Bayer

    (University of Bordeaux, CNRS, Laboratoire de Biogenèse Membranaire, UMR 5200 CNRS)

  • Wolfgang Busch

    (Plant Molecular and Cellular Biology Laboratory
    Austrian Academy of Sciences, Vienna Biocenter (VBC))

Abstract

Iron is critical for host–pathogen interactions. While pathogens seek to scavenge iron to spread, the host aims at decreasing iron availability to reduce pathogen virulence. Thus, iron sensing and homeostasis are of particular importance to prevent host infection and part of nutritional immunity. While the link between iron homeostasis and immunity pathways is well established in plants, how iron levels are sensed and integrated with immune response pathways remains unknown. Here we report a receptor kinase SRF3, with a role in coordinating root growth, iron homeostasis and immunity pathways via regulation of callose synthases. These processes are modulated by iron levels and rely on SRF3 extracellular and kinase domains which tune its accumulation and partitioning at the cell surface. Mimicking bacterial elicitation with the flagellin peptide flg22 phenocopies SRF3 regulation upon low iron levels and subsequent SRF3-dependent responses. We propose that SRF3 is part of nutritional immunity responses involved in sensing external iron levels.

Suggested Citation

  • Matthieu Pierre Platre & Santosh B. Satbhai & Lukas Brent & Matias F. Gleason & Min Cao & Magali Grison & Marie Glavier & Ling Zhang & Christophe Gaillochet & Christian Goeschl & Marco Giovannetti & B, 2022. "The receptor kinase SRF3 coordinates iron-level and flagellin dependent defense and growth responses in plants," Nature Communications, Nature, vol. 13(1), pages 1-18, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-32167-6
    DOI: 10.1038/s41467-022-32167-6
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    References listed on IDEAS

    as
    1. Santosh B. Satbhai & Claudia Setzer & Florentina Freynschlag & Radka Slovak & Envel Kerdaffrec & Wolfgang Busch, 2017. "Natural allelic variation of FRO2 modulates Arabidopsis root growth under iron deficiency," Nature Communications, Nature, vol. 8(1), pages 1-10, August.
    2. Baohai Li & Li Sun & Jianyan Huang & Christian Göschl & Weiming Shi & Joanne Chory & Wolfgang Busch, 2019. "GSNOR provides plant tolerance to iron toxicity via preventing iron-dependent nitrosative and oxidative cytotoxicity," Nature Communications, Nature, vol. 10(1), pages 1-13, December.
    3. Min Cao & Rong Chen & Pan Li & Yongqiang Yu & Rui Zheng & Danfeng Ge & Wei Zheng & Xuhui Wang & Yangtao Gu & Zuzana Gelová & Jiří Friml & Heng Zhang & Renyi Liu & Jun He & Tongda Xu, 2019. "TMK1-mediated auxin signalling regulates differential growth of the apical hook," Nature, Nature, vol. 568(7751), pages 240-243, April.
    4. Ross Sager & Xu Wang & Kristine Hill & Byung-Chun Yoo & Jeffery Caplan & Alex Nedo & Thu Tran & Malcolm J. Bennett & Jung-Youn Lee, 2020. "Auxin-dependent control of a plasmodesmal regulator creates a negative feedback loop modulating lateral root emergence," Nature Communications, Nature, vol. 11(1), pages 1-10, December.
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