Identificación de un compuesto alelopático de Baccharis boliviensis (Asteraceae) y su efecto en la germinación de Trichocereus pasacana (Cactaceae)

The genus Baccharis has a wide distribution in Northwestern arid regions of Argentina. Studies carried out on the spatial distribution of T. pasacana in relation to the available space, show that although beneath B. boliviensis canopy, cacti seeds are abundant, no adult plants are found growing in a...

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Autores principales: Cazón, Ada, de Viana, Marta, Gianello, José C
Formato: Online
Idioma:spa
Publicado: Universidad de Costa Rica 2000
Acceso en línea:https://revistas.ucr.ac.cr/index.php/rbt/article/view/18149
id RBT18149
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spelling RBT181492022-06-13T19:47:42Z Identificación de un compuesto alelopático de Baccharis boliviensis (Asteraceae) y su efecto en la germinación de Trichocereus pasacana (Cactaceae) Identificación de un compuesto alelopático de Baccharis boliviensis (Asteraceae) y su efecto en la germinación de Trichocereus pasacana (Cactaceae) Cazón, Ada de Viana, Marta Gianello, José C allelochemicals ferrulic acid baccharis boliviensis trichocereus pasacana gerrnination allelochemicals ferrulic acid baccharis boliviensis trichocereus pasacana gerrnination The genus Baccharis has a wide distribution in Northwestern arid regions of Argentina. Studies carried out on the spatial distribution of T. pasacana in relation to the available space, show that although beneath B. boliviensis canopy, cacti seeds are abundant, no adult plants are found growing in association to that species in spite of the requirement of a nurse plant for a successfull cacti establishment. Hexane, chloroforrn and ethyl acetate extracts from B. boliviensis folliage inhibited T. pasacana gennination completely.The bioassays were carried out in a germination chamber following a random design, with four replicates by treatment. The chloroforrn extract was the most effective solvent for extracting the phytotoxic material from the aqueous extracts. T he ferrulic acid structure was deterrnined by !3C NMR, lHNMR spectra and TLC on silica gel. The genus Baccharis has a wide distribution in Northwestern arid regions of Argentina. Studies carried out on the spatial distribution of T. pasacana in relation to the available space, show that although beneath B. boliviensis canopy, cacti seeds are abundant, no adult plants are found growing in association to that species in spite of the requirement of a nurse plant for a successfull cacti establishment. Hexane, chloroforrn and ethyl acetate extracts from B. boliviensis folliage inhibited T. pasacana gennination completely.The bioassays were carried out in a germination chamber following a random design, with four replicates by treatment. The chloroforrn extract was the most effective solvent for extracting the phytotoxic material from the aqueous extracts. T he ferrulic acid structure was deterrnined by !3C NMR, lHNMR spectra and TLC on silica gel. Universidad de Costa Rica 2000-03-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article application/pdf https://revistas.ucr.ac.cr/index.php/rbt/article/view/18149 10.15517/rbt.v48i1.18149 Revista de Biología Tropical; Vol. 48 No. 1 (2000): Volume 48 – Regular number 1 – March 2000; 47–51 Revista de Biología Tropical; Vol. 48 Núm. 1 (2000): Volumen 48 – Número regular 1 – Marzo 2000; 47–51 Revista Biología Tropical; Vol. 48 N.º 1 (2000): Volume 48 – Regular number 1 – March 2000; 47–51 2215-2075 0034-7744 10.15517/rbt.v48i1 spa https://revistas.ucr.ac.cr/index.php/rbt/article/view/18149/18384 Copyright (c) 2000 Revista de Biología Tropical http://creativecommons.org/licenses/by/4.0
institution Universidad de Costa Rica
collection Revista de Biología Tropical
language spa
format Online
author Cazón, Ada
de Viana, Marta
Gianello, José C
spellingShingle Cazón, Ada
de Viana, Marta
Gianello, José C
Identificación de un compuesto alelopático de Baccharis boliviensis (Asteraceae) y su efecto en la germinación de Trichocereus pasacana (Cactaceae)
author_facet Cazón, Ada
de Viana, Marta
Gianello, José C
author_sort Cazón, Ada
description The genus Baccharis has a wide distribution in Northwestern arid regions of Argentina. Studies carried out on the spatial distribution of T. pasacana in relation to the available space, show that although beneath B. boliviensis canopy, cacti seeds are abundant, no adult plants are found growing in association to that species in spite of the requirement of a nurse plant for a successfull cacti establishment. Hexane, chloroforrn and ethyl acetate extracts from B. boliviensis folliage inhibited T. pasacana gennination completely.The bioassays were carried out in a germination chamber following a random design, with four replicates by treatment. The chloroforrn extract was the most effective solvent for extracting the phytotoxic material from the aqueous extracts. T he ferrulic acid structure was deterrnined by !3C NMR, lHNMR spectra and TLC on silica gel.
title Identificación de un compuesto alelopático de Baccharis boliviensis (Asteraceae) y su efecto en la germinación de Trichocereus pasacana (Cactaceae)
title_short Identificación de un compuesto alelopático de Baccharis boliviensis (Asteraceae) y su efecto en la germinación de Trichocereus pasacana (Cactaceae)
title_full Identificación de un compuesto alelopático de Baccharis boliviensis (Asteraceae) y su efecto en la germinación de Trichocereus pasacana (Cactaceae)
title_fullStr Identificación de un compuesto alelopático de Baccharis boliviensis (Asteraceae) y su efecto en la germinación de Trichocereus pasacana (Cactaceae)
title_full_unstemmed Identificación de un compuesto alelopático de Baccharis boliviensis (Asteraceae) y su efecto en la germinación de Trichocereus pasacana (Cactaceae)
title_sort identificación de un compuesto alelopático de baccharis boliviensis (asteraceae) y su efecto en la germinación de trichocereus pasacana (cactaceae)
title_alt Identificación de un compuesto alelopático de Baccharis boliviensis (Asteraceae) y su efecto en la germinación de Trichocereus pasacana (Cactaceae)
publisher Universidad de Costa Rica
publishDate 2000
url https://revistas.ucr.ac.cr/index.php/rbt/article/view/18149
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AT devianamarta identificaciondeuncompuestoalelopaticodebaccharisboliviensisasteraceaeysuefectoenlagerminaciondetrichocereuspasacanacactaceae
AT gianellojosec identificaciondeuncompuestoalelopaticodebaccharisboliviensisasteraceaeysuefectoenlagerminaciondetrichocereuspasacanacactaceae
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