Symbiotic bacteria from entomopathogenic nematodes acting as biological agents against fungal pathogens of tomato seedlings

摘要

Biological control of tomato seedling diseases by the bacterial Pseudomonas oryzihabitans and Xenorhabdtis nematophifas were evaluated in vitro, and the glasshouse. In laboratory Petri dishes assays the bacteria significally inhibited the growth of Pythium aphanidermatum and Rhizoctonia solani after 48 h. In the glasshouse the application of the bacteria resulted in significant improvement of plant growth when applied to plant treated with the root pathogens.