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  • Title: Chemical characterization and bioherbicidal potential of the essential oil from the leaves of Unonopsis guatterioides (A.DC.) R.E.Fr. (Annonaceae).
    Author: Yoshida NC, Saffran FP, Lima WG, Freire TV, de Siqueira JM, Garcez WS.
    Journal: Nat Prod Res; 2019 Nov; 33(22):3312-3316. PubMed ID: 29741113.
    Abstract:
    The chemical composition and the phytotoxicity potential of the essential oil from leaves of Unonopsis guatterioides (A.DC.) R.E.Fr. (Annonaceae) was investigated. Gas chromatography/mass spectrometry analyses revealed 16 constituents representing 99.50% of the total essential oil, composed mainly of sesquiterpenes. α-copaene, bicyclogermacrene and trans-caryophyllene were the major components (15.7% each), followed by α-humullene, allo-aromadendrene and (+)-spathulenol (9.0, 8.4 and 7.3%, respectively). The essential oil inhibited seed germination and growth in both monocotyledon (Allium cepa) and dicotyledon (Lactuca sativa) models, pointing to a promising application of this oil obtained from the leaves of U. guatterioides as a new bioherbicide.
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