摘要
菌根是丛枝菌根真菌与宿主植物形成的互利共生体,在共生的不同阶段,植物产生一系列的信号物质如独脚金内酯、溶血磷脂酰胆碱、茉莉酸和水杨酸等.这些信号物质在植物与丛枝菌根真菌间相互识别、菌根形成、营养物质交换,以及植物防御反应诱导等方面发挥重要作用.文中探讨植物信号物质在丛枝菌根共生系统形成前后和病原体侵害的3个阶段可能的生理效应和作用机制,旨在为研究丛枝菌根真菌与植物信号物质的相互作用及其在农业生产和环境保护方面的应用提供依据.
Arbuscular mycorrhizals is a kind of mutulistic symbiosis which formed by plants and arbuscular mycorrhizal（AM） fungi.Signal substances such as strigolactones,jasmine acids（JA）,salicylic acids（SA） and lyso-phosphatidylcholine（LPC）,are found in different symbiotic stages.The signal substances play an important role not only in the recognization,mycorrhiza formation and nutrient exchanges between AM fungi and host plant,but also in the induction of plant defense response.In the present study,we summarized the physiological effects and related functioning mechanism of the signals on three stages： before AM formation,after AM formation and upon pathogens attack,for the purpose of providing a basis for the further study of interaction between AM fungi and signals,as well as the mycorrhizal application in agricultural production and environmental protection.
出处
《华侨大学学报（自然科学版）》
CAS
北大核心
2012年第3期290-295,共6页
Journal of Huaqiao University(Natural Science)
基金
国家自然科学基金资助项目(31101512)
福建省自然科学基金资助项目(2011J01222)
华侨大学基本科研业务费专项科研基金资助项目(JB-ZR1149)
关键词
丛枝菌根真菌
信号物质
营养交换
防御应答
arbuscular mycorrhizal fungi
signal substances
nutrient exchanges
defense response
