5-氨基乙酰丙酸在植物非生物胁迫与生长中的作用研究

The study of the role of 5-Aminolevulinic acid in plant growth and response to abiotic stress

为了提供更有效的非生物胁迫抗性改良策略,本研究综述了5-氨基乙酰丙酸(5-aminolevulinic acid,ALA)在生物体内的合成途径以及其在提高植物对非生物胁迫的耐受性和调节植物生长方面的作用机制。结果表明:1)ALA的生物合成主要通过C5路径和Shemin路径进行,二者在不同生物体中因适应其特有的生理和生态需求而有所侧重。2)作为卟啉类化合物的前体,ALA在植物光合作用和代谢过程中扮演关键角色。3)通过影响植物基因表达、代谢调控和信号转导等途径,ALA提升了植物的抗逆性。4)进一步的研究将集中于探索ALA的具体分子机制和信号传导路径,并开发新的途径以利用ALA提高作物品质和增加农业生产力。总的来说,ALA在农业生产和科学研究领域展示出巨大的研究潜力和应用前景,但要充分发挥其潜力和效用,还需深入研究其具体分子机制,并进一步确定ALA作为植物信号分子的角色及其具体受体的存在。本研究不仅为园艺植物提供更有效的非生物胁迫抗性改良策略,也为在全球气候变化和环境压力日益增大的背景下保障作物的稳定和可持续生产提供了理论基础。

To develop more effective strategies for enhancing abiotic stress resistance in horticultural plants,this study reviews the biosynthesis pathways of 5-aminolevulinic acid(ALA)and its mechanisms in improving plant tolerance to abiotic stress and regulating plant growth.The results indicated that:1)The biosynthesis of ALA mainly occurs through the C5 pathway and the Shemin pathway,which are emphasized in different organisms to adapt to their unique physiological and ecological needs.2)As a precursor of porphyrin compounds,ALA plays a crucial role in plant photosynthesis and metabolic processes.3)ALA enhances plant stress tolerance by influencing gene expression,metabolic regulation,and signal transduction.4)Further research will focus on exploring the specific molecular mechanisms and signaling pathways of ALA,as well as developing new approaches to utilize ALA for improving crop quality and increasing agricultural productivity.Overall,ALA demonstrates significant research potential and practical applications in agricultural production and scientific research.However,to fully harness its potential and effectiveness,in-depth studies on its specific molecular mechanisms are required,as well as further identification of ALA's role as a plant signaling molecule and the existence of its specific receptors.The study not only provides more effective strategies for improving abiotic stress resistance in horticultural plants but also offer a theoretical basis for ensuring stable and sustainable crop production under the increasing challenges of global climate change and environmental stress.