Interactions between Pseudomonas fluorescens biocontrol agents and Glomus mosseae, an arbuscular mycorrhizal fungus, within the rhizosphere
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- 作者：Edwards ; Simon G. ; Young ; J. Peter W. ; Fitter ; Alastair H.
- 关键词：Arbuscular mycorrhizal fungus ; Biocontrol agent ; Genetically modified organism ; Glomus mosseae ; Pseudomonas fluorescens ; Rhizosphere
- 刊名：FEMS Microbiology Letters
- 出版年：1998
- 出版时间：September 15, 1998
- 年：1998
- 卷：166
- 期：2
- 页码：297-303
- 全文大小：461 K
文摘
Interactions between Pseudomonas fluorescens biocontrol agents and Glomus mosseae, an arbuscular mycorrhizal fungus, were studied. The biocontrol agents included the genetically modified strains CHA96 and CHA0 pME3424 which produced enhanced levels of antifungal compounds. Tomato (Lycopersicum esculentum) and leek (Allium porrum) host plants were grown in sterile Terra-Green (calcined attapulgite clay) with limited nutrients. Mycorrhizal activity was indicated by shoot dry weight and phosphorus content. In all experiments, plants grown in the presence of G. mosseae had a significantly higher shoot dry weight than those grown in the absence of G. mosseae. Colonisation and activity of G. mosseae was unaltered in the presence of P. fluorescens isolates and presence of G. mosseae increased the population of P. fluorescens in the rhizosphere.