The anti-inflammatory property of Lomatia hirsuta (Lam.) Diels ex Macbr. (Proteaceae), leaves (radal), a plant used in Chilean traditional medicine for bronchial troubles and asthma, was evaluated. The biological assays showed infusion of L. hirsuta leaves inhibits the inflammation induced by lambda-carrageenan corresponding to a 29.2% anti-inflammatory effect, and to 53.5% of the maximum effect observed with sodium naproxen (4 mg/kg) in the same experimental conditions. The coumarins, umbelliferone and scopoletin, were the major compounds isolated, along with quercetine, rhamnetin and iso-rhamnetin, with minor quantities or quercitrine and no presence of toxic naphthoquinone derivates. These results supported the folk use of L. hirsuta.
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http://dx.doi.org/10.1016/s0378-8741(97)00048-2 | DOI Listing |
Front Plant Sci
February 2021
School of Biological Sciences, The University of Western Australia, Perth, WA, Australia.
Southern South American Proteaceae thrive on young volcanic substrates, which are extremely low in plant-available phosphorus (P). Most Proteaceae exhibit a nutrient-acquisition strategy based on the release of carboxylates from specialized roots, named cluster roots (CR). Some Proteaceae colonize young volcanic substrates which has been related to CR functioning.
View Article and Find Full Text PDFFront Plant Sci
June 2018
Laboratorio de Biología Vegetal, Facultad de Ciencias, Instituto de Ciencias Ambientales y Evolutivas, Universidad Austral de Chile, Valdivia, Chile.
Plants from the Proteaceae family can thrive in old, impoverished soil with extremely low phosphorus (P) content, such as those typically found in South Western Australia (SWA) and South Africa. The South Western (SW) Australian Proteaceae species have developed strategies to deal with P scarcity, such as the high capacity to re-mobilize P from senescent to young leaves and the efficient use of P for carbon fixation. In Southern South America, six Proteaceae species grow in younger soils than those of SWA, with a wide variety of climatic and edaphic conditions.
View Article and Find Full Text PDFEnviron Sci Pollut Res Int
September 2016
Laboratorio de Análisis por Activación Neutrónica, Centro Atómico Bariloche, CNEA, Av. Bustillo km 9.5, 8400, Bariloche, Argentina.
Vegetation associated with lacustrine systems in Northern Patagonia was studied for heavy metal and trace element contents, regarding their elemental contribution to these aquatic ecosystems. The research focused on native species and exotic vascular plant Salix spp. potential for absorbing heavy metals and trace elements.
View Article and Find Full Text PDFMycologia
September 2015
Centro Forestal CIEFAP-CONICET, CC14, 9200 Esquel, Chubut, Argentina and Universidad Nacional de la Patagonia SJ Bosco, Ruta 259 km 16.2, 9200 Esquel, Chubut, Argentina.
Six poroid Hymenochaetaceae from Patagonia, Argentina, were studied phylogenetically with nuc rDNA internal transcribed spacer (ITS) and partial 28S rDNA sequences, together with morphological data. Two new genera and a new species are introduced as well as two new combinations proposed. Arambarria destruens gen.
View Article and Find Full Text PDFBMC Complement Altern Med
August 2006
Department of Plant Biology, Royal Veterinary and Agricultural University, Thorvaldsensvej 40, DK-1871 Frederiksberg C, Denmark.
Background: Leaves of Lomatia hirsuta are used in traditional medicine in Chile under the common name of "radal". A tea of radal is traditionally used for treatment of cough, bronchial troubles, and asthma. In a preliminary screening, extracts of the leaves revealed antifungal activity, and the present phytochemical study was undertaken to explain this activity and support the traditional use.
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