Keywords
indolyl-3-acetic acid
plant growth stimulation
endophytic bacteria
potato
How to Cite
Abstract
Endophytic microorganisms are a promising basis for biofertilizers and biopreparations to increase the yield of cultivated plants due to their ability to synthesize a variety of biologically active substances that play a key role in the regulation of vital processes in their hosts. In the present work, the ability of endophytic strain Bacillus wiedmannii EJ1, isolated from leaves of potato variety Reggae, to produce the phytohormone indolyl-3-acetic acid (IAA) was evaluated. It was found that the strain under study synthesizes PPI, and the addition of tryptophan to the culture medium leads to an increase in the rate of accumulation of the phytohormone in the culture fluid. The maximum concentration of PPI (14.6 µg/mL) was detected on the fifth day of cultivation of B. wiedmannii EJ1 strain in M9 medium with the addition of tryptophan.
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