Growth Behavior of Phytopathogen Clavibacter michiganensis ssp. sepedonicus Treated with Selenium Biocomposites of Mushroom Origin
Journal Title: Журнал ÑтреÑÑ-физиологии и биохимии - Year 2016, Vol 12, Issue 1
Abstract
The results of studying the effect of biologically obtained selenium nanocomposites on the bacterium [i]Clavibacter michiganensis[/i] ssp. [i]sepedonicus [/i]([i]Cms[/i]) are presented. [i]Cms [/i]is a Gram-positive bacterium, which causes one of the most dangerous potato diseases, ring rot. The effective alongside ecologically safe methods for combating [i]Cms [/i]are lacking. As the agents feasible for use in this purpose, we examined the selenium nanocomposites obtained from the macrobasidiomycetes' submerged cultures. For exploring the bionanocomposites effect on [i]Cms[/i], the methods of agar well diffusion, the suspension turbidity measurement, and the colony-forming units count were applied. The results showed that all the nanocomposites under study lowered the bacterial suspension's absorption values compared to the reference specimen, that testified to the observation of bacteriostatic effect of the agents tested. The suppression action of nanocompostes was elucidated by means of both agar well diffusion assay and colony-forming units count. Thus, the results obtained demonstrate the occurrence of bacteriostatic and bactericidal effects of the substances under study, and favor the supposition on advisability of further research into the selenium nanocomposites as the agents for agricultural recovery from the bacterial pathogens.
Authors and Affiliations
A. Perfileva, O. Tsivileva
Keywords
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