Seasonal variation in phytotoxicity of Drimys brasiliensis Miers

Drimys brasiliensis Miers (Winteraceae), commonly called casca d'anta, is found in the Atlantic Forest and in Cerrado domain. It is considered an important source of natural compounds with pharmacological properties, however little is known about their phytotoxic potential on other plants. This...

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Autores principales:	Anese,Simoni, Umeda Grisi,Patrícia, de Jesus Jatobá,Luciana, Imatomi,Maristela, de Cassia Pereira,Viviane, Juliano Gualtieri,Sonia Cristina
Lenguaje:	English
Publicado:	Universidad de Tarapacá. Facultad de Ciencias Agronómicas 2014
Materias:	inhibition seasonality germinability metaxylem sesame
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-34292014000300014
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spelling	oai:scielo:S0718-342920140003000142014-11-05Seasonal variation in phytotoxicity of Drimys brasiliensis MiersAnese,SimoniUmeda Grisi,Patríciade Jesus Jatobá,LucianaImatomi,Maristelade Cassia Pereira,VivianeJuliano Gualtieri,Sonia Cristina inhibition seasonality germinability metaxylem sesame Drimys brasiliensis Miers (Winteraceae), commonly called casca d'anta, is found in the Atlantic Forest and in Cerrado domain. It is considered an important source of natural compounds with pharmacological properties, however little is known about their phytotoxic potential on other plants. This study aims to evaluate the phytotoxic effects of D. brasiliensis leaf extracts collected in two seasons (dry and rainy) on the germination and seedling growth of Sesamum indicum L., as well as evaluating the effect of the most active extract on metaxylem cell size in the roots of the target species. The aqueous extract was prepared with 10 g of dried, ground leaves dissolved in 100 mL of distilled water, resulting in a 10% extract concentrate. Dilutions were made with distilled water to 7.5; 5.0; 2.5% and 0% (control). The leaf extracts showed phytotoxicity on germination and early growth of sesame, with more pronounced activity in leaves collected in the dry season. The inhibitory effects were observed at the cellular level in sesame roots, with a significant reduction in the size of the metaxylem cells in the presence of all concentrations of leaf extract. The extract from leaves of D. brasiliensis may constitute a promising source in the search for natural phytotoxins for use in sustainable agriculture practices.info:eu-repo/semantics/openAccessUniversidad de Tarapacá. Facultad de Ciencias AgronómicasIdesia (Arica) v.32 n.3 20142014-08-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-34292014000300014en10.4067/S0718-34292014000300014
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	inhibition seasonality germinability metaxylem sesame
spellingShingle	inhibition seasonality germinability metaxylem sesame Anese,Simoni Umeda Grisi,Patrícia de Jesus Jatobá,Luciana Imatomi,Maristela de Cassia Pereira,Viviane Juliano Gualtieri,Sonia Cristina Seasonal variation in phytotoxicity of Drimys brasiliensis Miers
description	Drimys brasiliensis Miers (Winteraceae), commonly called casca d'anta, is found in the Atlantic Forest and in Cerrado domain. It is considered an important source of natural compounds with pharmacological properties, however little is known about their phytotoxic potential on other plants. This study aims to evaluate the phytotoxic effects of D. brasiliensis leaf extracts collected in two seasons (dry and rainy) on the germination and seedling growth of Sesamum indicum L., as well as evaluating the effect of the most active extract on metaxylem cell size in the roots of the target species. The aqueous extract was prepared with 10 g of dried, ground leaves dissolved in 100 mL of distilled water, resulting in a 10% extract concentrate. Dilutions were made with distilled water to 7.5; 5.0; 2.5% and 0% (control). The leaf extracts showed phytotoxicity on germination and early growth of sesame, with more pronounced activity in leaves collected in the dry season. The inhibitory effects were observed at the cellular level in sesame roots, with a significant reduction in the size of the metaxylem cells in the presence of all concentrations of leaf extract. The extract from leaves of D. brasiliensis may constitute a promising source in the search for natural phytotoxins for use in sustainable agriculture practices.
author	Anese,Simoni Umeda Grisi,Patrícia de Jesus Jatobá,Luciana Imatomi,Maristela de Cassia Pereira,Viviane Juliano Gualtieri,Sonia Cristina
author_facet	Anese,Simoni Umeda Grisi,Patrícia de Jesus Jatobá,Luciana Imatomi,Maristela de Cassia Pereira,Viviane Juliano Gualtieri,Sonia Cristina
author_sort	Anese,Simoni
title	Seasonal variation in phytotoxicity of Drimys brasiliensis Miers
title_short	Seasonal variation in phytotoxicity of Drimys brasiliensis Miers
title_full	Seasonal variation in phytotoxicity of Drimys brasiliensis Miers
title_fullStr	Seasonal variation in phytotoxicity of Drimys brasiliensis Miers
title_full_unstemmed	Seasonal variation in phytotoxicity of Drimys brasiliensis Miers
title_sort	seasonal variation in phytotoxicity of drimys brasiliensis miers
publisher	Universidad de Tarapacá. Facultad de Ciencias Agronómicas
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-34292014000300014
work_keys_str_mv	AT anesesimoni seasonalvariationinphytotoxicityofdrimysbrasiliensismiers AT umedagrisipatricia seasonalvariationinphytotoxicityofdrimysbrasiliensismiers AT dejesusjatobaluciana seasonalvariationinphytotoxicityofdrimysbrasiliensismiers AT imatomimaristela seasonalvariationinphytotoxicityofdrimysbrasiliensismiers AT decassiapereiraviviane seasonalvariationinphytotoxicityofdrimysbrasiliensismiers AT julianogualtierisoniacristina seasonalvariationinphytotoxicityofdrimysbrasiliensismiers
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Seasonal variation in phytotoxicity of Drimys brasiliensis Miers

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