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ChIP-seq reveals broad roles of SARD1 and CBP60g in regulating plant immunity

Author

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  • Tongjun Sun

    (University of British Columbia)

  • Yaxi Zhang

    (National Institute of Biological Sciences)

  • Yan Li

    (National Institute of Biological Sciences)

  • Qian Zhang

    (University of British Columbia)

  • Yuli Ding

    (University of British Columbia)

  • Yuelin Zhang

    (University of British Columbia)

Abstract

Recognition of pathogens by host plants leads to rapid transcriptional reprogramming and activation of defence responses. The expression of many defence regulators is induced in this process, but the mechanisms of how they are controlled transcriptionally are largely unknown. Here we use chromatin immunoprecipitation sequencing to show that the transcription factors SARD1 and CBP60g bind to the promoter regions of a large number of genes encoding key regulators of plant immunity. Among them are positive regulators of systemic immunity and signalling components for effector-triggered immunity and PAMP-triggered immunity, which is consistent with the critical roles of SARD1 and CBP60g in these processes. In addition, SARD1 and CBP60g target a number of genes encoding negative regulators of plant immunity, suggesting that they are also involved in negative feedback regulation of defence responses. Based on these findings we propose that SARD1 and CBP60g function as master regulators of plant immune responses.

Suggested Citation

  • Tongjun Sun & Yaxi Zhang & Yan Li & Qian Zhang & Yuli Ding & Yuelin Zhang, 2015. "ChIP-seq reveals broad roles of SARD1 and CBP60g in regulating plant immunity," Nature Communications, Nature, vol. 6(1), pages 1-12, December.
    • Handle: RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms10159
    DOI: 10.1038/ncomms10159
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    Cited by:

    1. Deepak D. Bhandari & Dae Kwan Ko & Sang-Jin Kim & Kinya Nomura & Sheng Yang He & Federica Brandizzi, 2023. "Defense against phytopathogens relies on efficient antimicrobial protein secretion mediated by the microtubule-binding protein TGNap1," Nature Communications, Nature, vol. 14(1), pages 1-16, December.
    2. Jianghua Cai & Sayantan Panda & Yana Kazachkova & Eden Amzallag & Zhengguo Li & Sagit Meir & Ilana Rogachev & Asaph Aharoni, 2024. "A NAC triad modulates plant immunity by negatively regulating N-hydroxy pipecolic acid biosynthesis," Nature Communications, Nature, vol. 15(1), pages 1-16, December.
    3. Jenna Lihavainen & Jan Šimura & Pushan Bag & Nazeer Fataftah & Kathryn Megan Robinson & Nicolas Delhomme & Ondřej Novák & Karin Ljung & Stefan Jansson, 2023. "Salicylic acid metabolism and signalling coordinate senescence initiation in aspen in nature," Nature Communications, Nature, vol. 14(1), pages 1-20, December.

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