title: Allelopathic Activity of Extracts from Different Brazilian Peanut (Arachis hypogaeaL.) Cultivars on Lettuce(Lactuca sativa)and Weed Plants.
abstract: Peanut (Arachis hypogaeaL.) is the fourth most consumed oleaginous plant in the world, producing seeds with high contents of lipids, proteins, vitamins, and carbohydrates. Biological activities of different extracts of this species have already been evaluated by many researchers, including antioxidant, antitumoral, and antibacterial. In this work, the allelopathic activity of extracts from different Brazilian peanut cultivars against lettuce(Lactuca sativa)and two weed plants (Commelina benghalensisandIpomoea nil) was studied. Aerial parts, roots, seeds, and seed coats were used for the preparation of crude extracts. Seed extract partitioning was performed withn-hexane, dichloromethane, ethyl acetate,n-butanol, and aqueous residue. Germination and growth of hypocotyls and rootlets were evaluated after one and five days of incubation with plant extracts, respectively. Crude seed extract and its dichloromethanic partition displayed highest allelopathic activity. These results contribute for the study of new potential natural herbicides.
authors.affiliation: Laboratory of Micropropagation and Plant Transformation, Cellular Biology Department, State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
authors.forename: G S
authors.identifier: 0000-0003-3842-6827
authors.initials: GS
authors.lastname: Casimiro
authors.affiliation: Laboratory of Micropropagation and Plant Transformation, Cellular Biology Department, State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
authors.forename: E
authors.identifier: 0000-0001-6856-4425
authors.initials: E
authors.lastname: Mansur
authors.affiliation: Laboratory of Micropropagation and Plant Transformation, Cellular Biology Department, State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
authors.forename: G
authors.identifier: 0000-0001-5460-9899
authors.initials: G
authors.lastname: Pacheco
authors.affiliation: Laboratory of Micropropagation and Plant Transformation, Cellular Biology Department, State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
authors.forename: R
authors.initials: R
authors.lastname: Garcia
authors.affiliation: Laboratory of Natural Products and Biological Assays, Department of Natural Products and Food, School of Pharmacy, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
authors.forename: I C R
authors.identifier: 0000-0002-6917-9323
authors.initials: IC
authors.lastname: Leal
authors.affiliation: Laboratory of Natural Products and Biological Assays, Department of Natural Products and Food, School of Pharmacy, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
authors.forename: N K
authors.initials: NK
authors.lastname: Simas
mesh_terms: D064089:Allelopathy; D010367:Arachis / Q000737:chemistry*; D001938:Brazil; D018525:Germination; D018545:Lactuca / Q000502:physiology*; D010936:Plant Extracts / Q000737:chemistry*; D057685:Plant Weeds / Q000502:physiology*; D012639:Seeds / Q000737:chemistry
chemical_list: D010936:Plant Extracts