BACTERICIDAL PROPERTIES OF PHYTONCIDES OF COTONEASTER MELANOCARPUS FISCH.EX. BLYTT. OF THE AKMOLA REGION

This article presents a study of the bactericidal properties of wound phytoncides of Cotoneaster melanocarpus Fisch. ex. Blytt. of the Akmola region. The research purpose is to study the bactericidal properties of wound phytoncides Cotoneaster melanocarpus Fisch. ex. Blytt. in natural and anthropogenic conditions of the Akmola region. To achieve the purpose, the following tasks are to be solved: Study of phytoncidal activity of plants in the Burabay and Kokshetau state national natural parks; Determine the seasonal dynamics of phytoncidal activity in natural and anthropogenic conditions; Study the effect of phytoncides on the airborne microflora of the Akmola region. Using the “steaming” method, the phytoncide activity of the shrub was determined by testing gram-positive Bacillus subtilis IMB B7018 and gram-negative Escherichia coli UCM B-926 microorganisms, along with its seasonal dynamics. The study provides a characterization of the effects of Cotoneaster melanocarpus Fisch. ex. Blytt. phytoncides on airborne microflora and outlines the specifics of their spatial distribution in the conditions of the Akmola region. It should be noted that most of the leaves, especially in Astana, A. Yanushkevich Str. showed a high level of bactericidal activity. This is related to the fact that, under stressful growing conditions, as the shrub's vital indicators decrease, its defense mechanisms become activated. In this regard, studies of phytoncidity of plants are of practical importance for to the decorative and landscaping properties of the shrub.