Current advances in plant-microbe communication via volatile organic compounds as an innovative strategy to improve plant growth
Current advances in plant-microbe communication via volatile organic compounds as an innovative strategy to improve plant growth
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DOI：
10.1016/j.micres.2021.126726
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发表时间：
2021-02-25
影响因子：
6.7
通讯作者：
Rubilar, Olga
中科院分区：
文献类型：
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作者：
Fincheira, Paola;Quiroz, Andres;Rubilar, Olga
微生物释放的挥发性有机化合物（VOCs）对植物的生长和抗非生物胁迫具有重要作用。大多数研究都使用拟南芥作为模式植物，并在过去几年扩展到其他具有商业价值的植物。有趣的是，微生物挥发性有机物具有可生物降解的结构，作用迅速，不含有毒物质，并在较低浓度下调节植物生理变化。这些化合物调节植物的生理过程，如植物激素途径、光合作用、养分获取和代谢。此外，与细胞组分、生物过程和分子功能相关的基因表达的调节由微生物VOCs触发。另外，很少有研究报道挥发性有机化合物在赋予植物对非生物胁迫（如干旱和盐）的耐受性方面的重要作用。尽管VOCs在受控条件下表现出促进植物生长的有效作用，但其温室或田间应用仍存在很大挑战。因此，在这篇综述中，我们总结了目前的知识有关的技术程序，研究案例，和生理机制引发的微生物挥发性有机化合物，最后讨论其在农业中的应用所面临的挑战。
Volatile organic compounds (VOCs) emitted by microorganisms have demonstrated an important role to improve growth and tolerance against abiotic stress on plants. Most studies have used Arabidopsis thaliana as a model plant, extending to other plants of commercial interest in the last years. Interestingly, the microbial VOCs are characterized by its biodegradable structure, quick action, absence of toxic substances, and acts at lower concentration to regulate plant physiological changes. These compounds modulate plant physiological processes such as phytohormone pathways, photosynthesis, nutrient acquisition, and metabolisms. Besides, the regulation of gene expression associated with cell components, biological processes, and molecular function are triggered by microbial VOCs. Otherwise, few studies have reported the important role of VOCs for confer plant tolerance to abiotic stress, such as drought and salinity. Although VOCs have shown an efficient action to enhance the plant growth under controlled conditions, there are still great challenges for their greenhouse or field application. Therefore, in this review, we summarize the current knowledge about the technical procedures, study cases, and physiological mechanisms triggered by microbial VOCs to finally discuss the challenges of its application in agriculture.