丛枝菌根真菌与大豆胞囊线虫相互作用研究初报  

A PRELIMINARY REPORT ON INTERACTIONS BETWEEN ARBUSCULAR MYCORRHIZAL FUNGI AND SOYBEAN CYST NEMATODE

作　　者：李海燕[1] 刘润进[2] 束怀瑞[1] 

机构地区：[1]山东农业大学园艺系,泰安271018 [2]莱阳农学院菌根生物技术实验室,莱阳265200

出　　处：《植物病理学报》2002年第4期356-360,共5页Acta Phytopathologica Sinica

基　　金：国家自然科学基金 (3 9970 498);山东省自然科学基金 (Y99D0 5 )项目资助

摘　　要：在温室盆栽条件下对大豆‘开育 10’品种接种了丛枝菌根 (AM)真菌 :Gigaspora margaritaBecker & Hall、Glomus fasiculatum (Thaxt) Gerd.& Trappe、G.intraradices Schenck & Smith、 G.mosseae Nicolson & Gedermann 及 G.versiforme Berch 和 /或大豆胞囊线虫 (SCN,H eteroderaglycines) 4号生理小种。供试 AM真菌可不同程度地促进大豆植株的生长发育 ,增加植株高度、地上部和地下部干重及单株产量 ,减轻感病大豆品种‘开育 10’SCN的危害 ,降低病情指数、根上和根围土壤中胞囊数量、2龄幼虫和胞囊内卵数。其中 ,G.fasiculatum、Gi.margarita和 G.intraradices的效应大于 G.mosseae和 G.versiforme的处理。接种 SCN显著降低了 G.intraradices和 G.versiforme对大豆根系的侵染率、G.fasiculatum的产孢数量及 G.intraradices的侵入点数量 ,增加了 G.mosseae的产孢数量。认为部分 AM真菌能有效地抑制 SCN对大豆根系的侵染、胞囊发育和Experiments on interactions between arbuscular mycorrhizal(AM)fungi, Gigaspora margarita, Glomus fasiculatum, G.intraradices, G.mosseae and G.versiforme and Heterodera glycines race 4 on soybean cultivar ‘Kaiyu 10' which is susceptible to soybean cyst nematode(SCN) was carried out on pot cultures in greenhouse. Results showed that tested AM fungi could significantly decrease SCN damage, reduce disease severity, the number of cysts on roots, the number of cysts and the second stage juveniles (J2) in the rhizospheric soil, and the number of eggs per cyst; but the plant height, dry weight of stem and root, yield per plant were higher than that treated with SCN. Among the AM fungi tested, G.fasiculatum, Gi.margarita and G.intraradices performanced much effectively than that of G.mosseae and G. versiforme. SCN was able to reduce colonization percentage of G.intraradices and G.versiforme, and the number of entry points of G.intraradices, but increase the sporulation of G.mosseae. These results suggested that certain species of AM fungi could effectively inhibit the infection processes of SCN.

关 键 词：丛枝菌根真菌 大豆胞囊线虫 相互作用 AM真菌 侵染 

分 类 号：S435.651[农业科学—农业昆虫与害虫防治] S47[农业科学—植物保护]