内生真菌对宿主植物生长和次级代谢产物影响研究进展

Research progress on the effect of endophytic fungi on the growths and secondary metabolites of host plants

关键词:  内生真菌  植物生理  胁迫抗性  次级代谢产物

Key words:  endophytic fungi  plant physiology  stress resistance  secondary metabolites

摘要:

内生真菌经过长期进化与宿主植物形成互利共生的关系，植物可以为内生真菌提供生长所需的营养物质，内生真菌可以调节宿主体内植物激素的水平，从而发挥调控植物生长和协助宿主植物对抗恶劣环境的作用。内生真菌亦能促进宿主植物次级代谢产物的积累，并且产生与宿主植物相类似的次级代谢产物。文章对内生真菌中植物激素生物合成过程进行梳理，对内生真菌调节植物激素水平从而发挥调控宿主植物生长、协助宿主对抗环境胁迫、产生与宿主植物相类似的次级代谢产物，并且诱导宿主次级代谢产物积累的相关研究进行综述，以期为后续研究内生真菌对宿主植物作用以及中药资源研究提供一定参考。

Abstract:

Endophytic fungi had formed a mutually beneficial symbiosis relationship with host plants through long-term evolution. Plants could provide nutrients for growth of endophytic fungi. Endophytic fungi could regulate the level of plant hormones in the host plant,so as to play a role in regulating plant growth and assisting host plants to resist harsh environment. It also promoted the accumulation of secondary metabolites of host plants and produced secondary metabolites which were similar to those of host plants. This article combed the process of phytohormone synthesis in endophytic fungi,and the related research on the regulation of plant hormone levels by endophytic fungi was summarized,which could regulate the growth of host plants,assiste the host to resist environmental stress,produce secondary metabolites similar to host plants and induce the accumulation of secondary metabolites in host plants. So as to provide a reference for the follow-up study of the interaction between endophytic fungi and host plants and the research of Chinese medicine resources.