• ISSN 1008-505X
  • CN 11-3996/S
兰平. 小肽分子对植物养分信号调控与有害元素耐受作用的研究进展[J]. 植物营养与肥料学报. DOI: 10.11674/zwyf.2024223
引用本文: 兰平. 小肽分子对植物养分信号调控与有害元素耐受作用的研究进展[J]. 植物营养与肥料学报. DOI: 10.11674/zwyf.2024223
LAN Ping. The regulation of plant nutrition signaling and resistance to hazardous elements by small peptides[J]. Journal of Plant Nutrition and Fertilizers. DOI: 10.11674/zwyf.2024223
Citation: LAN Ping. The regulation of plant nutrition signaling and resistance to hazardous elements by small peptides[J]. Journal of Plant Nutrition and Fertilizers. DOI: 10.11674/zwyf.2024223

小肽分子对植物养分信号调控与有害元素耐受作用的研究进展

The regulation of plant nutrition signaling and resistance to hazardous elements by small peptides

  • 摘要: 在自然和农业生态系统,固着生活的植物时刻面临各种生物和非生物胁迫,其中养分缺乏、养分失衡和重金属毒害极大地限制了植物的生长发育,导致作物产量和品质大幅下降。及时高效感知养分状态并做出适应性改变是植物赖以生存和繁衍生息的关键。经过长期的自然选择,植物已进化出一整套适应养分匮缺和应对有害元素胁迫的分子机制,包括对养分信号的感知与信号的级联传递,激活基因活性,重塑转录组、蛋白组和代谢组,最后导致生理生化和表型变化。植物感知养分信号分子调控网络一直是植物营养领域的研究热点。小肽通常指小于100个氨基酸长度的功能性肽段,参与植物生长发育的调控、植物和微生物的互作以及生物和非生物逆境的应答。本文就植物内源性小肽分子在养分信号调控、有害元素耐受等方面的最新研究进展进行阶段性总结和讨论,重点围绕小肽在大量元素氮、磷、硫和微量元素铁以及有害元素镉和砷等吸收平衡方面的作用展开,并对未来的研究方向进行展望。

     

    Abstract: In natural and agricultural ecosystems, many sessile organisms and plants often suffer from various biotic and abiotic stresses, such as the nutrient deficiency and heavy metal-caused nutrient disorder which hinder plant growth and development, and even affect crop productivity and reducing crop yield and quality seriously. Timely and efficient perception of nutrient status is critical for plant survival and reproduction. Under long-term natural selection, plants have evolved a complete set of molecular mechanisms to adapt to nutrient deficiency and heavy metal stress. Specific signals are formed to regulate or activate the gene expression, reprogramming of transcriptome, proteome, and metabolome, ultimately leading to physiological, biochemical, and phenotypic changes. The molecular mechanisms by which plants perceive nutrient signals have always been a hot research topic in the field of plant nutrition. Small peptides, generally less than 100 amino acids in length and involve in plant growth, development and bio-/abiotic stress responses, has been proved to be plant signal peptides by increasing evidence. This article reviewed the latest research progress on the regulation of nutrient signaling by endogenous small peptides in plant. The regulation of small peptides on the absorption and homeostasis of nitrogen, phosphorus, sulfate, and micronutrient like iron, as well as on the tolerance to the toxicity of heavy metals such as cadmium and arsenic were focused as typical cases. This article also proposed prospects of future research in this field.

     

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