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Combining chemical and genetic approaches to increase drought resistance in plants

Author

Listed:
  • Min-Jie Cao

    (Chinese Academy of Sciences)

  • Yu-Lu Zhang

    (Chinese Academy of Sciences)

  • Xue Liu

    (Chinese Academy of Sciences)

  • Huan Huang

    (Chinese Academy of Sciences)

  • X. Edward Zhou

    (Van Andel Research Institute)

  • Wen-Long Wang

    (Chinese Academy of Sciences)

  • Ai Zeng

    (Chinese Academy of Sciences)

  • Chun-Zhao Zhao

    (Purdue University)

  • Tong Si

    (Purdue University)

  • Jiamu Du

    (Chinese Academy of Sciences)

  • Wen-Wu Wu

    (Chinese Academy of Sciences)

  • Fu-Xing Wang

    (Chinese Academy of Sciences)

  • H. Eric Xu

    (Van Andel Research Institute
    Chinese Academy of Sciences)

  • Jian-Kang Zhu

    (Chinese Academy of Sciences
    Purdue University)

Abstract

Drought stress is a major threat to crop production, but effective methods to mitigate the adverse effects of drought are not available. Here, we report that adding fluorine atoms in the benzyl ring of the abscisic acid (ABA) receptor agonist AM1 optimizes its binding to ABA receptors by increasing the number of hydrogen bonds between the compound and the surrounding amino acid residues in the receptor ligand-binding pocket. The new chemicals, known as AMFs, have long-lasting effects in promoting stomatal closure and inducing the expression of stress-responsive genes. Application of AMFs or transgenic overexpression of the receptor PYL2 in Arabidopsis and soybean plants confers increased drought resistance. The greatest increase in drought resistance is achieved when AMFs are applied to the PYL2-overexpression transgenic plants. Our results demonstrate that the combining of potent chemicals with transgenic overexpression of an ABA receptor is very effective in helping plants combat drought stress.

Suggested Citation

  • Min-Jie Cao & Yu-Lu Zhang & Xue Liu & Huan Huang & X. Edward Zhou & Wen-Long Wang & Ai Zeng & Chun-Zhao Zhao & Tong Si & Jiamu Du & Wen-Wu Wu & Fu-Xing Wang & H. Eric Xu & Jian-Kang Zhu, 2017. "Combining chemical and genetic approaches to increase drought resistance in plants," Nature Communications, Nature, vol. 8(1), pages 1-12, December.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_s41467-017-01239-3
    DOI: 10.1038/s41467-017-01239-3
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    Cited by:

    1. Guo, Yuling & Huang, Guanmin & Wei, Zexin & Feng, Tianyu & Zhang, Kun & Zhang, Mingcai & Li, Zhaohu & Zhou, Yuyi & Duan, Liusheng, 2023. "Exogenous application of coronatine and alginate oligosaccharide to maize seedlings enhanced drought tolerance at seedling and reproductive stages," Agricultural Water Management, Elsevier, vol. 279(C).

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