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Phytomelatonin: An Emerging Regulator of Plant Biotic Stress Resistance

机译:Phytomelatonin:植物生物应力抗性的新兴调节器

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摘要

Melatonin has diverse functions in plant development and stress tolerance, with recent evidence showing a beneficial role in plant biotic stress tolerance. It has been hypothesized that pathogenic invasion causes the immediate generation of melatonin, reactive oxygen species (ROS), and reactive nitrogen species (RNS), with these being mutually dependent, forming the integrative melatonin-ROS-RNS feedforward loop. Here we discuss how the loop, possibly located in the mitochondria and chloroplasts, maximizes disease resistance in the early pathogen ingress stage, providing on-site protection. We also review how melatonin interacts with phytohormone signaling pathways to mediate defense responses and discuss the evolutionary context from the beginnings of the melatonin receptor-mitogen-activated protein kinase (MAPK) cascade in unicellular green algae, followed by the occurrence of phytohormone pathways in land plants.
机译:褪黑素在植物发育和耐逆性中具有多种功能,最近的证据表明褪黑素在植物生物耐逆性中起着有益的作用。据推测,致病性入侵导致褪黑素、活性氧物种(ROS)和活性氮物种(RNS)的立即产生,这些相互依赖,形成褪黑素-活性氧-RNS的整合前馈回路。在这里,我们讨论了可能位于线粒体和叶绿体中的环如何在病原体进入早期阶段最大限度地提高抗病性,提供现场保护。我们还回顾了褪黑素如何与植物激素信号通路相互作用,从而介导防御反应,并讨论了从单细胞绿藻中褪黑素受体丝裂原活化蛋白激酶(MAPK)级联开始的进化背景,以及陆地植物中植物激素通路的发生。

著录项

  • 来源
    《Trends in Plant Science》 |2021年第1期|共13页
  • 作者单位

    Yunnan Univ Biocontrol Engn Res Ctr Plant Dis &

    Pest Biocontrol Engn Res Ctr Crop Dis &

    Pest Sch Ecol &

    Environm Sci Kunming Yunnan Peoples R China;

    Yunnan Univ State Key Lab Conservat &

    Utilizat Bioresources Y Kunming Yunnan Peoples R China;

    Yunnan Univ Biocontrol Engn Res Ctr Plant Dis &

    Pest Biocontrol Engn Res Ctr Crop Dis &

    Pest Sch Ecol &

    Environm Sci Kunming Yunnan Peoples R China;

    Yunnan Univ State Key Lab Conservat &

    Utilizat Bioresources Y Kunming Yunnan Peoples R China;

    Univ Texas Hlth Sci Ctr San Antonio UT Hlth Dept Cell Syst &

    Anat San Antonio TX 78229 USA;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 植物学;
  • 关键词

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