Institute of Mycorrhizal Biotechnology, Qingdao Agricultural University, Qingdao 266109, China.
Mycorrhiza. 2012 May;22(4):289-96. doi: 10.1007/s00572-011-0397-8. Epub 2011 Jul 14.
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.
丛枝菌根（AM）真菌和植物促生根际细菌（PGPR）在防治土传病害方面具有潜力。本研究的目的是量化 AM 真菌[球囊霉属（Karsten）贝赫和摩西球囊霉（Nicol. & Gerd.）Gerdemann & Trappe]和 PGPR[多粘类芽孢杆菌（Prazmowski）Mace 和芽孢杆菌属（sp.）]在番茄（Lycopersicon esculentum Mill）植物（金冠品种）根系和根际定殖过程中的相互作用，并确定它们对根结线虫，南方根结线虫，和番茄生长的综合影响。进行了三个温室实验。PGPR 增加了 AM 真菌对根系的定殖，而 AM 真菌增加了根际中的 PGPR 数量。AM 真菌和 PGPR 的双重接种比单一接种提供了更好的南方根结线虫控制和更好的植物生长促进作用，最佳组合是摩西球囊霉属+芽孢杆菌属。结果表明，特定的 AM 真菌和 PGPR 可以相互刺激，并且 AM 真菌和 PGPR 的特定组合可以相互作用，以抑制南方根结线虫和疾病的发生。
