Title Resistance and growth dynamics of legume plants during petroleum hydrocarbons-contaminated soil phytoremediation process /
Authors Meištininkas, R ; Žaltauskaitė, J
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Is Part of Book of Abstracts 33rd International Conference Ecology & Safety 12-15 August.. Burgas : Science & Education Foundation, Gheorghe Asachi Technical University, Al-Farabi Kazakh National University, Georgian Technical University, Tajik National University. 2024, p. 12
Keywords [eng] soil ; phytoremediation ; Fabaceae plants
Abstract [eng] and long-term use of petroleum products, there are around 2.8 million potential spots of soil pollution in Europe alone. This pollution can damage the environment and create health risks. There are various ways to decontaminate soil pollution, but biological methods are the most desirable. Leguminous plant's phytoremediation is a promising method for TPH-contaminated soil treatment because they can fix nitrogen with the help of nitrogen-fixing bacteria in their roots. This means they don't have to compete with other plants and microorganisms for nitrogen. This study tested the resistance of three types of leguminous plants (Medicago sativa L., Melilotus albus L., Lotus corniculatus L.) to soil contaminated with heavy fuel oil (HF) and diesel. The plants were grown in soil contaminated with HF at concentrations of 2.5 and 4 g kg-1 and in soil contaminated with diesel at concentrations of 4.0 and 6.0 g kg-1 for 90 days. Plant growth and physiological parameters were measured. Diesel had a negative effect on the growth of all legumes, but only L. corniculatus and M. albus showed a reduced growth rate. The weakest inhibitory effect on shoot and root dry weight was observed in L. corniculatus in the case of HF contamination. According to the tolerance index (TI), M. sativa was the most resistant legume under the highest HF and diesel concentrations tested.
Published Burgas : Science & Education Foundation, Gheorghe Asachi Technical University, Al-Farabi Kazakh National University, Georgian Technical University, Tajik National University
Type Conference paper
Language English
Publication date 2024