Plant extracts as the source of physiologically active compounds suppressing the development of pathogenic fungi
2002
V.A. Karavaev | M.K. Solntsev | A.M. Kuznetsov | I.B. Polyakova | V.V. Frantsev | E.V. Yurina | T.P. Yurina
It is shown that aqueous extracts from bird cherry tree Padus avium L., aspen Populus tremula L., and celandine Chelidoniummajus L., effectivily suppress the germination of Puccinia triticina Eriks uredospores. Fungitoxic activity ofthe extracts is supposed to be determined by high content of phenolic compounds and high peroxidase activity in theleaves of these plants. Fungitoxic activity of the extracts from the leaves, inflorescences, roots, and stems of siberiancowparsnip Heracleum sibiricum L., was also correlated with the content of phenolic compounds in these organs. Treatmentof healthy wheat Triticum aestivum L., cv. Lyubava, with the extracts from common comfrey Symphytum officinaleL., cowparsnip Heracleum sibiricum L., and giant knotweed Reynoutria sashalinensis (F. Schmitt) Nakai, stimulated thephotosynthetic activity in treated leaves.
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