Suppression of the root-knot nematode [Meloidogyne incognita (Kofoid & White) Chitwood] on tomato by dual inoculation with arbuscular mycorrhizal fungi and plant growth-promoting rhizobacteria

被引:57
作者
Liu, Runjin [2 ]
Dai, Mei [2 ]
Wu, Xia [2 ]
Li, Min [2 ]
Liu, Xingzhong [1 ]
机构
[1] Chinese Acad Sci, Inst Microbiol, Key Lab Systemat Mycol & Lichenol, Beijing 100101, Peoples R China
[2] Qingdao Agr Univ, Inst Mycorrhizal Biotechnol, Qingdao 266109, Peoples R China
基金
中国国家自然科学基金;
关键词
Glomus mosseae; Glomus versiforme; Bacillus polymyxa; Bacillus sp; Disease control; GLOMUS-INTRARADICES; BIOCONTROL; RHIZOBIUM; RHIZOSPHERE; CLOVER;
D O I
10.1007/s00572-011-0397-8
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Arbuscular mycorrhizal (AM) fungi and plant growth-promoting rhizobacteria (PGPR) have potential for the biocontrol of soil-borne diseases. The objectives of this study were to quantify the interactions between AM fungi [Glomus versiforme (Karsten) Berch and Glomus mosseae (Nicol. & Gerd.) Gerdemann & Trappe] and PGPR [Bacillus polymyxa (Prazmowski) Mace and Bacillus sp.] during colonization of roots and rhizosphere of tomato (Lycopersicon esculentum Mill) plants (cultivar Jinguan), and to determine their combined effects on the root-knot nematode, Meloidogyne incognita, and on tomato growth. Three greenhouse experiments were conducted. PGPR increased colonization of roots by AM fungi, and AM fungi increased numbers of PGPR in the rhizosphere. Dual inoculations of AM fungi plus PGPR provided greater control of M. incognita and greater promotion of plant growth than single inoculations, and the best combination was G. mosseae plus Bacillus sp. The results indicate that specific AM fungi and PGPR can stimulate each other and that specific combinations of AM fungi and PGPR can interact to suppress M. incognita and disease development.
引用
收藏
页码:289 / 296
页数:8
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