INFLUENCE OF ACETONE EXTRACT FROM SOME LICHENIZED FUNGI ON THE GROWTH ACTIVITY OF POPULUS TREMULA L. IN VITRO

Abstract

The article presents the results of studying the effect of extracts of epigeic lichenized fungi in concentrations from 10 to 50 mg/l on the activity of growth processes, gemmogenesis and rhizogenesis of the economically valuable species Populus tremula L. when cultivated in vitro. Epigeic and epiphytic lichenized fungi served as raw materials for the isolation of the acetone extract: Cetraria islandica (L.) Ach. families Parmeliaceae of the order Lecanorales of the department Lecanoromycetes and Evernia mesomorpha Nyl. – families Parmeliaceae of the order Lecanorales of the class Lecanoromycetes. Acetone was used as a solvent in the extraction of lichen acids from crushed raw materials of thalli. Under the influence of the allelopathic effect of the acetone extract of C. islandica and E. mesomorpha on the activity of growth processes and rhizogenesis of P. tremula, we studied the extract concentrations of 10, 30, and 50 mg/l of the nutrient medium. As a result, it was found that the concentration of the extract of 10 mg/l leads to an increase in the length of the microshoot and activation of the processes of gemmogenesis and rhizogenesis compared to the control in the absence of explant death. Significant differences were obtained in the variant using the acetone extract of C. islandica.