Molecular mechanisms underlying nitrate responses in plants
Molecular mechanisms underlying nitrate responses in plants
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DOI：
10.1016/j.cub.2022.03.022
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发表时间：
2022-05
期刊：
影响因子：
9.2
通讯作者：
Liliana Lamig;S. Moreno;J. M. Álvarez;R. Gutiérrez
中科院分区：
文献类型：
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作者：
Liliana Lamig;S. Moreno;J. M. Álvarez;R. Gutiérrez
硝酸盐是无机氮的重要来源。硝酸盐调节许多植物的代谢、生理和发育过程。这篇小综述强调了最近关于复杂分子线路的发现，这些分子线路允许植物适应环境硝酸盐条件。我们专注于调节途径及其组件的作用-转运蛋白，受体，第二信使，激酶和转录因子-在介导植物的代谢和发育反应硝酸盐。仍然需要开展工作，以确定缺失的硝酸盐信号通路的组成部分，以及它们与已知的和良好表征的主调节器的相互作用，并验证它们的分子相互作用，以解释硝酸盐的表型反应的复杂性。了解植物如何在分子水平上感知硝酸盐并将其转化为反应，对于优化氮利用效率，提高作物产量以及减轻不断变化的世界中肥料过度使用对环境的不利影响至关重要。
Nitrate is an important source of inorganic nitrogen. Nitrate modulates many plant metabolic, physiological, and developmental processes. This minireview highlights recent findings on the intricate molecular wiring that allows plants to adapt to environmental nitrate conditions. We focus on the role of regulatory pathways and their components — transporters, receptors, second messengers, kinases, and transcription factors — in mediating plant metabolic and developmental responses to nitrate. Work is still needed to identify missing components of the nitrate signaling pathway and their interplay with known and well-characterized master regulators and to validate their molecular interactions to explain the complexity of phenotypical responses to nitrate. Understanding how plants perceive nitrate and transduce it into responses at the molecular level is crucial to optimize nitrogen-use efficiency, improve crop yield and mitigate the adverse environmental impacts of fertilizer overuse in a changing world.