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当前位置: 首页 > 文章 > 宿主不同对丛枝菌根真菌扩繁效应的影响 中国农学通报 2022,38 (1) 7-14
Position: Home > Articles > Effects of Different Hosts on Propagation of Arbuscular Mycorrhizal Fungi Chinese Agricultural Science Bulletin 2022,38 (1) 7-14

宿主不同对丛枝菌根真菌扩繁效应的影响

作  者：
马俊卿;侯宁;孙晨瑜;杨怡森;覃圣峰;王勇;刘璐;廖虹霖;黄京华
单  位：
广西大学农学院;广西高校作物栽培学与耕作学重点实验室;广西大学植物科学实验教学中心
关键词：
丛枝菌根真菌;扩繁;侵染率;孢子密度;宿主植物;接种势
摘  要：
丛枝菌根真菌(arbuscular mycorrhizal fungi,AMF)在土壤生态系统中发挥着巨大作用,但目前AMF还不能纯培养,只能通过与宿主植物共生的方式扩繁。为研究不同宿主植物对AMF的扩繁效应,本研究选择玉米(Zea mays)、高粱(Sorghum bicolor)、黑麦草(Lolium perenne)、三叶草(Trifolium pratense)作为宿主,分别对聚丛根孢囊霉(Rhizophagus aggregatus)和幼套近明球囊霉(Claroideoglomus etunicatum)进行扩繁。在种植后的第30、60、90和120天分别对接种AMF后宿主植物根系的AMF侵染率、基质中的AMF孢子密度以及AMF的接种势进行测定分析。结果显示,不同宿主对AMF的扩繁效应不同,扩繁结束后聚丛根孢囊霉及幼套近明球囊霉对宿主植物的侵染率由高到低依次为玉米>高粱>三叶草>黑麦草,聚丛根孢囊霉的孢子密度由高到低依次为玉米>高粱>黑麦草>三叶草,幼套近明球囊霉的孢子密度影响由高到低依次为高粱>玉米>三叶草>黑麦草。同一宿主对不同AMF的扩繁效应也不同,玉米和黑麦草对聚丛根孢囊霉的扩繁效应高于幼套近明球囊霉,三叶草和高粱对幼套近明球囊霉的扩繁效应高于聚丛根孢囊霉。试验还发现,AMF的孢子密度与其对植物的侵染率有关,并且存在极显著正相关的关系。本研究表明,玉米是聚丛根孢囊霉扩繁的最佳宿主植物,高粱是幼套近明球囊霉扩繁的最佳宿主植物。
译  名：
Effects of Different Hosts on Propagation of Arbuscular Mycorrhizal Fungi
作  者：
MA Junqing;HOU Ning;SUN Chenyu;YANG Yisen;QIN Shengfeng;WANG Yong;LIU Lu;LIAO Honglin;HUANG Jinghua;College of Agriculture, Guangxi University;Key Laboratory of Crop Cultivation and Agronomy in Guangxi University;Experimental Teaching Center of Plant Science, Guangxi University;
关键词：
arbuscular mycorrhizal fungi;;propagation;;colonization rate;;spore density;;host plants;;inoculum potential
摘  要：
Arbuscular mycorrhizal fungi (AMF) play an important role in soil ecosystem,but currently AMF cannot be purely cultured,and can only be propagated by symbiosis with host plants.In order to research the effect of different host plants on the propagation of AMF,maize (Zea mays L.),sorghum (Sorghum bicolor (L.)Moench),ryegrass (Lolium perenne L.) and clover (Trifolium pratense L.) were selected as hosts to propagate Rhizophagus aggregatus and Claroideoglomus etunicatum,respectively.The colonization rate,spore density,and inoculum potential of AMF were measured on the 30~(th),60~(th),90~(th)and 120~(th)day after AMF inoculation.The results showed that the effects of different hosts on the propagation of AMF were different.The colonization rates of R.aggregatus and C.etunicatum from high to low were maize>sorghum>clover>ryegrass,and the order of spore density of R.aggregatus was maize>sorghum>ryegrass>clover,the order of spore density of C.etunicatum was sorghum>maize>clover>ryegrass.The propagation effect of the same host on different AMF was also different.The effect of maize and ryegrass on R.aggregatus was higher than that of C.etunicatum,but the effect of clover and sorghum on the propagation of C.etunicatum was higher than that of R.aggregatus.It was also found that the spore density of AMF was related to the colonization rate of AMF,and there was a significantly positive correlation.The results show that maize is the best host plant for R.aggregatus propagation and sorghum is the best host plant for C.etunicatum propagation.

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