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2019, N 3 (37) |
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BIOLOGICAL RESOURCES
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Vedernikov K., Bukharina I., Zagrebin E. |
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Biologically active compounds of wood of coniferous plants |
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This article presents the results of a study of the characteristics of the biochemical composition of coniferous wood in an urban environment and consideration of the possibility of the participation of extractive substances in the formation of adaptive reactions. The objects of research are Picea pungens Engelm. as an introduced species and Pícea obovata L. as an indigenous species. To study the adaptive reactions of the biochemical composition of wood, the selected species were studied depending on the anthropogenic load tested at different intensities. The findings were statistically processed. As a result, the absence of statistically significant differences in the content of extractive substances of P.obovata wood in urban stands was revealed compared with the control zone. For P. pungens, a significantly higher content of extractive substances was observed under conditions of increasing anthropogenic load. Species specificity for the content of extractive substances in wood was not detected, however, P. pungens showed more significant variability of this indicator. When studying the component composition of extractives by thin layer chromatography in wood of P. pungens, unlike the local species, ɑ-conidendrin was not detected, however, a higher content of resin-like compounds was recorded. The study was carried out with the financial support of RFBR grant № 19-04-00353 A.
Keywords: PÍCEA OBOVATA, PICEA PUNGENS, EXTRACTIVE SUBSTANCES, CONIFERS, SPRUCE, RESISTANCE |