Open AccessINFLUENCE OF BACILLUS SUBTILIS 26D ON GROWTH PARAMETERS AND IAA CONTENT IN POTATO PLANTS INFECTED WITH PHYTOPHTHORA INFESTANS
Author(s) -
A. V. Sorokan,
С. В. Веселова,
И. В. Максимов
Publication year - 2021
Publication title -
èkobioteh
Language(s) - English
Resource type - Journals
ISSN - 2618-964X
DOI - 10.31163/2618-964x-2021-4-2-89-93
Subject(s) - phytophthora infestans , blight , bacillus subtilis , biology , shoot , pathogen , phaseolus , botany , plant growth , cutting , auxin , horticulture , bacteria , microbiology and biotechnology , genetics , biochemistry , gene
Plant diseases, including late blight caused by Phytophthora infestans, have long-term negative effects on plant growth and productivity. Auxins play an important role both in the regulation of growth processes and in the interaction of plants with pathogenic and endophytic microorganisms. It was shown that the presence of endophytic bacteria B. subtilis 26D in potato tissues promoted a rapid recovery of the growth rates of shoots, wet and dry mass of roots after P. infestans infection, and also reduced the area of late blight damaged zones on the leaves. At the same time, the effect of the pathogen led to an increase in the IAA content in the shoots, which was not observed in infected plants containing B. subtilis 26D endophytic cells.