Leaf Extracts of Invasive Woody Species Demonstrate Allelopathic Effects on the Growth of a Lawn Grass Mixture.

Plants (Basel)

Laboratory of Natural Flora, N.V. Tsitsin Main Botanical Garden of Russian Academy of Sciences, Botanicheskaya 4, Moscow 127276, Russia.

Published: December 2023

Biochemical composition was studied in the leaf litter of alien woody species included in the 100 most aggressive invasive species of Europe: , , , , and . Using GC-MS, we detected 187 metabolites in the leaf litter, which are phenolic acids and their derivatives, carbohydrates and their derivatives, polyphenolic compounds, cyclic esters, glycosides, and amino acids and their derivatives. Species-specific metabolites were identified for each species. The main allelochemicals in the leaf litter extract of are determined mainly by the relative abundance of phenolic and fatty acids and their esters, whereas those in the leaf litter extract of are determined by carbohydrates and their derivatives and ester of fatty acid, and those in the leaf litter extract of are determined by glycosides. Profiles of macro- and microelements were characterized. It was found that aqueous extracts of leaf litter from all the invasive woody plants under study have a negative effect on the seed germination and initial growth of and used for the reclamation of disturbed urban and industrial lands. At the same time, is potentially more sensitive.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10747084PMC
http://dx.doi.org/10.3390/plants12244084DOI Listing

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