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OsPRMT6b balances plant growth and high temperature stress by feedback inhibition of abscisic acid signaling

Author

Listed:
  • Xin Jin

    (Chinese Academy of Agricultural Sciences)

  • Qibing Lin

    (Chinese Academy of Agricultural Sciences)

  • Xinyue Zhang

    (Chinese Academy of Agricultural Sciences)

  • Shuang Zhang

    (Chinese Academy of Agricultural Sciences)

  • Weiwei Ma

    (Chinese Academy of Agricultural Sciences)

  • Peike Sheng

    (Chinese Academy of Agricultural Sciences)

  • Limin Zhang

    (Chinese Academy of Agricultural Sciences)

  • Minxi Wu

    (Chinese Academy of Agricultural Sciences)

  • Xudong Zhu

    (Chinese Academy of Agricultural Sciences)

  • Zhiwei Li

    (Chinese Academy of Agricultural Sciences)

  • Bojuan Liu

    (Chinese Academy of Agricultural Sciences)

  • Jiachang Wang

    (Chinese Academy of Agricultural Sciences)

  • Yupeng Wang

    (Chinese Academy of Agricultural Sciences)

  • Kun Dong

    (Chinese Academy of Agricultural Sciences)

  • Ming Yu

    (Chinese Academy of Agricultural Sciences)

  • Yulong Ren

    (Chinese Academy of Agricultural Sciences)

  • Zhijun Cheng

    (Chinese Academy of Agricultural Sciences)

  • Cailin Lei

    (Chinese Academy of Agricultural Sciences)

  • Xiuping Guo

    (Chinese Academy of Agricultural Sciences)

  • Xin Wang

    (Chinese Academy of Agricultural Sciences)

  • Haiyang Wang

    (Chinese Academy of Agricultural Sciences)

  • Fu-Qing Wu

    (Chinese Academy of Agricultural Sciences)

  • Shanshan Zhu

    (Chinese Academy of Agricultural Sciences)

  • Jianmin Wan

    (Chinese Academy of Agricultural Sciences
    Nanjing Agricultural University)

Abstract

Plants rapidly induce strong abscisic acid (ABA) signaling in response to stress, but how they weaken ABA signaling to resume normal growth after stress is unclear. Here, we find that arginine methyltransferase 6b (OsPRMT6b) methylates three arginine residues (R48, R79, R113) in ABA receptor OsPYL/RCAR10 (OsPYR1-LIKE/REGULATORY COMPONENT OF ABA RECEPTOR, R10), thereby enhancing its interaction with Tiller Enhancer (TE) and promoting its ubiquitination and degradation through the 26S-proteasome pathway. OsPRMT6b is induced by ABA at both transcriptional and translational levels. Further, we find that R10 protein accumulates under high temperature stress but declines as temperature drops, whereas OsPRMT6b protein shows an opposite trend. And WT plants display a better growth recovery than osprmt6b mutants after high temperature. These findings suggest that OsPRMT6b acts as a switch to downregulate ABA signaling for growth recovery after high temperature stress.

Suggested Citation

  • Xin Jin & Qibing Lin & Xinyue Zhang & Shuang Zhang & Weiwei Ma & Peike Sheng & Limin Zhang & Minxi Wu & Xudong Zhu & Zhiwei Li & Bojuan Liu & Jiachang Wang & Yupeng Wang & Kun Dong & Ming Yu & Yulong , 2025. "OsPRMT6b balances plant growth and high temperature stress by feedback inhibition of abscisic acid signaling," Nature Communications, Nature, vol. 16(1), pages 1-16, December.
    • Handle: RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-60350-y
    DOI: 10.1038/s41467-025-60350-y
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    References listed on IDEAS

    as
    1. Hiroaki Fujii & Viswanathan Chinnusamy & Americo Rodrigues & Silvia Rubio & Regina Antoni & Sang-Youl Park & Sean R. Cutler & Jen Sheen & Pedro L. Rodriguez & Jian-Kang Zhu, 2009. "In vitro reconstitution of an abscisic acid signalling pathway," Nature, Nature, vol. 462(7273), pages 660-664, December.
    2. Qibing Lin & Fuqing Wu & Peike Sheng & Zhe Zhang & Xin Zhang & Xiuping Guo & Jiulin Wang & Zhijun Cheng & Jie Wang & Haiyang Wang & Jianmin Wan, 2015. "The SnRK2-APC/CTE regulatory module mediates the antagonistic action of gibberellic acid and abscisic acid pathways," Nature Communications, Nature, vol. 6(1), pages 1-10, November.
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