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Phytotoxic effect of bioactive compounds isolated from Myrcia tomentosa (Myrtaceae) leaves.

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URI: http://hdl.handle.net/10498/20270

DOI: 10.1016/j.bse.2012.09.005

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2013-Phytotoxic effect of bioactive compounds isolated from Myrcia tomentosa (Myrtaceae) leaves.pdf (528.6Kb)
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Author/s
Imatomi, Maristela; Novaes, Paula; P. Matos, Andréia; J. Gualtieri, Sonia C.; González Molinillo, José MaríaAuthority UCA; Lacret, Rodney; Varela Montoya, Rosa MaríaAuthority UCA; Macías Domínguez, Francisco AntonioAuthority UCA
Date
2013-10
Department
Química Orgánica
Source
Biochemical Systematics and Ecology 46 (2013) 29–35
Abstract
The aim of this study was to assess the phytotoxic potential of leaves of Myrcia tomentosa, as well as to isolate and identify the main bioactive compounds. The results for the coleoptile and phytotoxicity bioassays indicated the ethyl acetate extract for the phytochemistry study, owing to the high activity and the maintenance of the activity at lower concentrations. This extract was chromatographed and subjected to 1H NMR and 13C NMR. Two major active compounds were isolated from the ethyl acetate extract of leaves of M. tomentosa: avicularin and juglanin. The fractions where these compounds were isolated showed potent inhibition of coleoptile growth. This paper is the first report on the presence of the flavonoids avicularin and juglanin in species of Myrtaceae from Neotropical savanna and provides a basis for future studies on the bioprospecting of M. tomentosa.
Subjects
Allelopathy; Flavonol glycosides; Phytotoxins; Prospecting
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  • Artículos Científicos [4205]
  • Artículos Científicos INBIO [242]
  • Articulos Científicos Quim. Org. [158]
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
This work is under a Creative Commons License Attribution-NonCommercial-NoDerivatives 4.0 Internacional

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