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A Phytophthora receptor-like kinase regulates oospore development and can activate pattern-triggered plant immunity

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  • Yong Pei

    (Nanjing Agricultural University)

  • Peiyun Ji

    (Nanjing Agricultural University)

  • Jierui Si

    (Nanjing Agricultural University)

  • Hanqing Zhao

    (Nanjing Agricultural University)

  • Sicong Zhang

    (Nanjing Agricultural University)

  • Ruofei Xu

    (Nanjing Agricultural University)

  • Huijun Qiao

    (Nanjing Agricultural University)

  • Weiwei Duan

    (Nanjing Agricultural University)

  • Danyu Shen

    (Nanjing Agricultural University)

  • Zhiyuan Yin

    (Nanjing Agricultural University)

  • Daolong Dou

    (Nanjing Agricultural University
    Nanjing Agricultural University)

Abstract

Plant cell-surface leucine-rich repeat receptor-like kinases (LRR-RLKs) and receptor-like proteins (LRR-RLPs) form dynamic complexes to receive a variety of extracellular signals. LRR-RLKs are also widespread in oomycete pathogens, whereas it remains enigmatic whether plant and oomycete LRR-RLKs could mediate cell-to-cell communications between pathogen and host. Here, we report that an LRR-RLK from the soybean root and stem rot pathogen Phytophthora sojae, PsRLK6, can activate typical pattern-triggered immunity in host soybean and nonhost tomato and Nicotiana benthamiana plants. PsRLK6 homologs are conserved in oomycetes and also exhibit immunity-inducing activity. A small region (LRR5-6) in the extracellular domain of PsRLK6 is sufficient to activate BAK1- and SOBIR1-dependent immune responses, suggesting that PsRLK6 is likely recognized by a plant LRR-RLP. Moreover, PsRLK6 is shown to be up-regulated during oospore maturation and essential for the oospore development of P. sojae. Our data provide a novel type of microbe-associated molecular pattern that functions in the sexual reproduction of oomycete, and a scenario in which a pathogen LRR-RLK could be sensed by a plant LRR-RLP to mount plant immunity.

Suggested Citation

  • Yong Pei & Peiyun Ji & Jierui Si & Hanqing Zhao & Sicong Zhang & Ruofei Xu & Huijun Qiao & Weiwei Duan & Danyu Shen & Zhiyuan Yin & Daolong Dou, 2023. "A Phytophthora receptor-like kinase regulates oospore development and can activate pattern-triggered plant immunity," Nature Communications, Nature, vol. 14(1), pages 1-15, December.
    • Handle: RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-40171-7
    DOI: 10.1038/s41467-023-40171-7
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    References listed on IDEAS

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    1. Elwira Smakowska-Luzan & G. Adam Mott & Katarzyna Parys & Martin Stegmann & Timothy C Howton & Mehdi Layeghifard & Jana Neuhold & Anita Lehner & Jixiang Kong & Karin Grünwald & Natascha Weinberger & S, 2018. "An extracellular network of Arabidopsis leucine-rich repeat receptor kinases," Nature, Nature, vol. 553(7688), pages 342-346, January.
    2. Elwira Smakowska-Luzan & G. Adam Mott & Katarzyna Parys & Martin Stegmann & Timothy C Howton & Mehdi Layeghifard & Jana Neuhold & Anita Lehner & Jixiang Kong & Karin Grünwald & Natascha Weinberger & S, 2018. "Publisher Correction: An extracellular network of Arabidopsis leucine-rich repeat receptor kinases," Nature, Nature, vol. 561(7722), pages 8-8, September.
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