Journal of Plant Pathology (2007) 89, p. S28 (Antonelli et al.)

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M. Antonelli, M.P. Aleandri, N. Vinci, G. Chilosi and L. Varvaro (2007)
Evaluation of the antagonistic activity of some bacteria against melon soil-borne pathogens
Journal of Plant Pathology 89 (3, Suppl.), S28-S28
Poster Presentation at S.I.Pa.V XIV National Meeting - Perugia, Italy 19-21 Sept. 2007
Abstract: Repeated melon cropping and different soil sterilisation treatments cause a biological impoverishment of soil fertility and an increase of diseases caused by soil-borne pathogens. To develop effective and sustainable strategies for soil-borne pathogen management, we have sampled soils from plots given over to melon in the province of Viterbo and have isolated and selected fluorescent and spore-forming bacteria. These isolates, were characterized biochemically and tested for their in vitro activity against Monosporascus cannonballus, Fusarium oxysporum f. sp. melonis, Rhizoctonia solani, Verticillium dahliae and Erwinia carotovora subsp. carotovora, and for their ability to produce toxic volatile compounds (i.e. HCN). Bacterial isolates of Pseudomonas putida, P. fluorescens and Bacillus spp. that gave positive responses were used for in vivo tests to verify their role as plant growth promoters or as deleterious rhizobacteria with plant growth inhibitory effects through bacterization of melon, lettuce and tomato seed. The bacterial isolates analysed during this study could be a potential tool for biological or integrated pest management programs for farmers in the area of Viterbo.
Database assignments for author(s): Leonardo Varvaro

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
general biology - morphology - evolution

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.

Rhizoctonia solani Melon (Cucumis melo) Italy
Verticillium dahliae Melon (Cucumis melo) Italy
Monosporascus cannonballus Melon (Cucumis melo) Italy
Pectobacterium carotovorum Melon (Cucumis melo) Italy
Fusarium oxysporum f.sp. melonis Melon (Cucumis melo) Italy
Pseudomonas fluorescens (antagonist)
Pseudomonas putida (antagonist)
Fusarium oxysporum