不同培养基质和寄主植物对AMF扩繁的影响  

The Effect of Cultivating Substrates and Host Plants on Propagated Condition of Arbuscular Mycorrhizal Fungi

作　　者：任玮[1] 杨韧[1] 唐明[1] 

机构地区：[1]西北农林科技大学林学院,杨凌712100

出　　处：《菌物研究》2017年第1期46-52,共7页Journal of Fungal Research

基　　金：国家自然科学基金(41671268);陕西省科技统筹创新工程计划项目(2016KTCL02-07)

摘　　要：研究了在室内盆栽条件下,不同培养基质和不同寄主植物对丛枝菌根真菌(Arbuscular mycorrhizal fungi,AMF)扩繁的影响。在纯土、纯沙和沙土混合不同基质中,接种3种AMF于玉米武科2号、玉米陕单335、高粱和三叶草4种不同寄主植物,测量每种AMF的侵染率、孢子密度和寄主植物地下干重,筛选适宜的培养基质和寄主植物。结果表明,不同培养基质、不同种类和不同品种的寄主植物对AMF的侵染率、孢子密度和寄主植物地下干重均有显著影响。地表球囊霉(Geosiphon versiforme)的最适基质是纯土,最适寄主是高粱;根内球囊霉(Rhizophagus irregularis)和摩西球囊霉(Funneliformis mosseae)的最适基质是沙土混合,最适寄主是玉米武科2号。The objective of this research was to study the effect of different cultivating substrates and host plants on propagated condition of Arbuseular mycorrhizal fungi （AMF） in greenhouse con- dition. Three different substrates are pure soil, pure sand and sandy soil, and three AMF was inoc- ulated in four different host plants：Zea mays Wu Ke 2, Zea mays Shan Dan 335 , Sorghum bicolor and Trifolium repens. Each of the AMF colonization rate, spore density and the undereulthre dry weight of host plants were measured to select best appropriate cultivating substrates and host plants. Results show that different cultivating substrates, host plants and AMF have significant different effects on AMF colonization rate, spore density and the underculture dry weight of host plants.The best cultivating substrates of Geosiphon versiforme is pure soil, while the best host plant is sorghum. The best cultivating substrates of Rhizophagus irregularis and Funneliformis mosseae is sandy soil, while the best host plant is Wu Ke 2.

关 键 词：丛枝菌根真菌 寄主植物 培养基质 孢子密度 侵染率 

分 类 号：Q938.1[生物学—微生物学] Q949.32