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  • Title: Effects of aqueous eucalyptus extracts on seed germination, seedling growth and activities of peroxidase and polyphenoloxidase in three wheat cultivar seedlings (Triticum aestivum L.).
    Author: Ziaebrahimi L, Khavari-Nejad RA, Fahimi H, Nejadsatari T.
    Journal: Pak J Biol Sci; 2007 Oct 01; 10(19):3415-9. PubMed ID: 19090161.
    Abstract:
    Evaluation of allelopathic effects of this plant on other near cultivations especially wheat is the aim of this study. Effects of water extracts of eucalyptus leaves examined on germination and growth of three wheat cultivar seeds and seedlings. Results showed that: germination percentage strongly decreased, leaf and root lengths also affected and dry and wet weights of both roots and shoots showed similar change patterns. Activities of peroxidase and polyphenoloxidase as antioxidant enzymes in roots and shoots measured. Activity of peroxidases increased in stress conditions and roots showed more increased enzyme activity than leaves. Activity of polyphenoloxidases increased only in one of three cultivars and again roots showed more activity of this enzyme in response to eucalyptus extract. Suggest that detoxification process were conducted mainly in roots of seedlings.
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