RESUMO
The antagonistic activity of strains Bacillus amyloliquefaciens YKM B-7243 and YKM B-7404 against bacterial and fungal agents of winter wheat diseases was demonstrated. Low antagonistic level against bacterial agents of plant diseases was shown. Antifungal activity of strains against agents of winter wheat was on the low level. High biological efficiency was shown under binary compositions of the studied strains. It was concluded that the enhancing of fungicide and growth-stimulation effects in binary compositions were found.
Assuntos
Antibiose , Bacillus/fisiologia , Agentes de Controle Biológico , Doenças das Plantas , Triticum/microbiologia , Bacillus/química , Bacillus/crescimento & desenvolvimento , Doenças das Plantas/microbiologia , Doenças das Plantas/prevenção & controle , Triticum/crescimento & desenvolvimentoRESUMO
Synthesis of extracellular phytohormones by bacteria strains of the genus Bacillus isolated from different ecological sources (soil and plant) has been researched. It has been shown that phytohormone's synthesis ability of the endophytic and free-living Bacillus strains is significantly different as regards the level and spectrum of synthesized compounds. It was concluded that such differences in synthesis of extracellular phytohormones by bacilli are associated with different type of interactions between the studied microorganisms and host plant.
