INVESTIGATION OF RADIOPROTECTIVE PROPERTIES OF LIGNIN UNDER CONDITIONS OF ACUTE GAMMA RADIATION ON SMALL DUCKWEED LEMNA MINOR L.
UDK 582.52:581.4:547.458.82
Abstract
The work is devoted to the problem of protecting plant organisms from acute gamma radiation. As an object of study, an aquatic plant small duckweed (Lemna minor L.) was chosen, which was irradiated in doses up to 63 Gy. As a radioprotective agent, lignin of wild rosemary (Ledum palustre L.) was tested. In the course of the experiments, the values of biomarkers of plant well-being were established and it was shown that the water-soluble lignin of wild rosemary is not toxic to plant organisms. It has been established that preliminary cultivation of plants in aqueous lignin-containing media can reduce the level of damage and increase the length of the roots of irradiated plant organisms, which indicates the manifestation of adaptogenic and radioprotective properties of lignin at the organismic and population levels. For the first time, a hypothesis about the radioprotective potential of lignin was put forward and the possibility of using exogenous lignin to protect plant organisms from acute gamma radiation in high doses was experimentally shown.
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