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Phytotoxicity of Cardoon (Cynara cardunculus) Allelochemicals on Standard Target Species and Weeds

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URI: http://hdl.handle.net/10498/20313

DOI: 10.1021/jf501976h

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2014-Phytotoxicity of Cardoon (Cynara cardunculus) Allelochemicals on Standard Target Species and Weeds.pdf (1.374Mb)
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Author/s
Rial Cumbrera, CarlosAuthority UCA; Novaes, Paula; González Molinillo, José MaríaAuthority UCA; Varela Montoya, Rosa MaríaAuthority UCA; González Molinillo, José MaríaAuthority UCA; Macías Domínguez, Francisco AntonioAuthority UCA
Date
2014-06
Department
Química Orgánica
Source
J. Agric. Food Chem. 2014, 62, 6699−6706
Abstract
Cardoon (Cynara cardunculus L.) is a native plant to the Iberian Peninsula and the European Atlantic coast and invasive in American environments. Different solvents were used to perform cardoon extracts that were tested in phytotoxic bioassays. The ethyl acetate extract had the highest inhibitory activity so this was tested on the germination and growth of standard target species (lettuce, watercress, tomato, and onion) and weeds (barnyardgrass and brachiaria). The ethyl acetate extract was very active on root growth in both standard target species and weeds and it was therefore fractionated by chromatography. The spectroscopic data showed that the major compounds were sesquiterpene lactones. Aguerin B, grosheimin, and cynaropicrin were very active on etiolated wheat coleoptile, standard target species, and weed growth. The presence of these compounds explains the bioactivity of the ethyl acetate extract. The strong phytotoxicity of these compounds on important weeds shows the potential of these compounds as natural herbicide models.
Subjects
Allelopathy; cardoon; aguerin B; cynaropicrin; grosheimin; guaianolide; sesquiterpene lactones
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  • Artículos Científicos [4209]
  • 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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