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dc.contributor.authorMacias, Francisco A.-
dc.contributor.authorFernandez, Adriana-
dc.contributor.authorVarela, Rosa M.-
dc.contributor.authorMolinillo, Jose M. G.-
dc.contributor.authorTorres, Ascension-
dc.contributor.authorAlves, Pedro L. C. A.-
dc.identifier.citationJournal of Natural Products. Washington: Amer Chemical Soc, v. 69, n. 5, p. 795-800, 2006.-
dc.description.abstractSix new sesquiterpene lactones, annuolide H ( 3), helivypolides F, H-J ( 4, 11-13), and helieudesmanolide A ( 6), together with known compounds, were isolated from polar bioactive fractions of Helianthus annuus cv. SH-222 and Stella fresh leaf water extracts. Spectroscopic analysis of the new data for 1,2-anhydroniveusin A and 1-methoxy-4,5-dihydroniveusin A corrects some previous assignments. The compounds were tested using the etiolated wheat coleoptile bioassay, and the most active compounds were assayed in standard target species ( STS) ( Lepidium sativum, Allium cepa, Lactuca sativa, Lycopersicon esculentum, and Triticum aestivum) from 5 x 10(-4) to 10(-5) M. The most phytotoxic compounds were helivypolide F and 15-hydroxy-3-dehydrodeoxyfruticin, both of which have a carbonyl group at C-3 conjugated with two double bonds.en
dc.publisherAmer Chemical Soc-
dc.sourceWeb of Science-
dc.titleSesquiterpene lactones as allelochemicalsen
dc.contributor.institutionUniv Cadiz-
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.description.affiliationUniv Cadiz, Fac Ciências, Dept Quim Organ, Grp Alelopatia, E-11510 Puerto Real, Spain-
dc.description.affiliationUniv Estadual Paulista, FCAV, Dept Biol Aplicada & Agropecuaria, BR-14884900 Jaboticabal, SP, Brazil-
dc.description.affiliationUnespUniv Estadual Paulista, FCAV, Dept Biol Aplicada & Agropecuaria, BR-14884900 Jaboticabal, SP, Brazil-
dc.rights.accessRightsAcesso restrito-
dc.relation.ispartofJournal of Natural Products-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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