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Independently evolved viral effectors convergently suppress DELLA protein SLR1-mediated broad-spectrum antiviral immunity in rice

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Listed:
  • Lulu Li

    (Nanjing Agricultural University
    Ningbo University)

  • Hehong Zhang

    (Ningbo University)

  • Zihang Yang

    (Ningbo University)

  • Chen Wang

    (Nanjing Agricultural University
    Ningbo University)

  • Shanshan Li

    (Nanjing Agricultural University
    Ningbo University)

  • Chen Cao

    (Ningbo University)

  • Tongsong Yao

    (Nanjing Agricultural University
    Ningbo University)

  • Zhongyan Wei

    (Ningbo University)

  • Yanjun Li

    (Ningbo University)

  • Jianping Chen

    (Nanjing Agricultural University
    Ningbo University)

  • Zongtao Sun

    (Ningbo University)

Abstract

Plant viruses adopt diverse virulence strategies to inhibit host antiviral defense. However, general antiviral defense directly targeted by different types of plant viruses have rarely been studied. Here, we show that the single rice DELLA protein, SLENDER RICE 1 (SLR1), a master negative regulator in Gibberellin (GA) signaling pathway, is targeted by several different viral effectors for facilitating viral infection. Viral proteins encoded by different types of rice viruses all directly trigger the rapid degradation of SLR1 by promoting association with the GA receptor OsGID1. SLR1-mediated broad-spectrum resistance was subverted by these independently evolved viral proteins, which all interrupted the functional crosstalk between SLR1 and jasmonic acid (JA) signaling. This decline of JA antiviral further created the advantage of viral infection. Our study reveals a common viral counter-defense strategy in which different types of viruses convergently target SLR1-mediated broad-spectrum resistance to benefit viral infection in the monocotyledonous crop rice.

Suggested Citation

  • Lulu Li & Hehong Zhang & Zihang Yang & Chen Wang & Shanshan Li & Chen Cao & Tongsong Yao & Zhongyan Wei & Yanjun Li & Jianping Chen & Zongtao Sun, 2022. "Independently evolved viral effectors convergently suppress DELLA protein SLR1-mediated broad-spectrum antiviral immunity in rice," Nature Communications, Nature, vol. 13(1), pages 1-16, December.
    • Handle: RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-34649-z
    DOI: 10.1038/s41467-022-34649-z
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    References listed on IDEAS

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    1. Kunlun Li & Renbo Yu & Liu-Min Fan & Ning Wei & Haodong Chen & Xing Wang Deng, 2016. "DELLA-mediated PIF degradation contributes to coordination of light and gibberellin signalling in Arabidopsis," Nature Communications, Nature, vol. 7(1), pages 1-11, September.
    2. Zhigang Liao & Hong Yu & Jingbo Duan & Kun Yuan & Chaoji Yu & Xiangbing Meng & Liquan Kou & Mingjiang Chen & Yanhui Jing & Guifu Liu & Steven M. Smith & Jiayang Li, 2019. "SLR1 inhibits MOC1 degradation to coordinate tiller number and plant height in rice," Nature Communications, Nature, vol. 10(1), pages 1-9, December.
    3. Frederik Schulz & Simon Roux & David Paez-Espino & Sean Jungbluth & David A. Walsh & Vincent J. Denef & Katherine D. McMahon & Konstantinos T. Konstantinidis & Emiley A. Eloe-Fadrosh & Nikos C. Kyrpid, 2020. "Giant virus diversity and host interactions through global metagenomics," Nature, Nature, vol. 578(7795), pages 432-436, February.
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    Cited by:

    1. Hehong Zhang & Fengmin Wang & Weiqi Song & Zihang Yang & Lulu Li & Qiang Ma & Xiaoxiang Tan & Zhongyan Wei & Yanjun Li & Junmin Li & Fei Yan & Jianping Chen & Zongtao Sun, 2023. "Different viral effectors suppress hormone-mediated antiviral immunity of rice coordinated by OsNPR1," Nature Communications, Nature, vol. 14(1), pages 1-17, December.

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