Consulta: creatorFacets:"Freitas,Elisete Maria de"
Registros recuperados: 4
Data/hora: 10/06/2024 04:32:07

Florística e fitossociologia da vegetação de um campo sujeito à arenização no sudoeste do Estado do Rio Grande do Sul, Brasil
Provedor de dados: Acta Botanica Brasilica
Autores: Freitas,Elisete Maria de; Boldrini,Ilsi Iob; Müller,Sandra Cristina; Verdum,Roberto.
Extensas áreas de campo nativo do sudoeste do Rio Grande do Sul são suscetíveis ao processo de arenização, que ocorre em áreas de fragilidade pedológica, tendo influência de interferência antrópica e fatores abióticos. Com o objetivo de testar a variação da cobertura vegetal e a dinâmica da arenização no tempo e conforme a influência da distância da encosta, foi desenvolvido um estudo florístico e fitossociológico em áreas de campo nativo sob pastejo. Duas subáreas, diferentes quanto ao processo da arenização, foram selecionadas no município de São Francisco de Assis, RS. O levantamento florístico apontou a ocorrência de 102 espécies, distribuídas em 25 famílias. No estudo fitossociológico, 35 quadros permanentes de 0,25 m² em cada subárea foram dispostos...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Areais; Campo nativo; Dinâmica vegetacional; Diversidade; Pampa.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062009000200013

Optimal culture conditions for the initial development of Ilex paraguariensis A.St.-Hil. explants
Provedor de dados: Acta Botanica Brasilica
Autores: Griebeler,Ana Gláucia; Consatti,Guilherme; Freitas,Elisete Maria de; Sperotto,Raul Antonio.
In the state of Rio Grande do Sul, Brazil, yerba mate (Ilex paraguariensis A. St.-Hil.) is an economically and culturally important species. Because of the difficulty in obtaining plantlets from seeds, micropropagation has emerged as an alternative that could increase production. This work aimed to evaluate the effect that treatment with 6-benzyladenine (BA), at concentrations of 2.2, 8.9, and 20 µM and associated with naphthaleneacetic acid (NAA, 0.5 µM), has on the in vitro growth and leaf emission of I. paraguariensis nodal segments cultivated in 0.5 X Murashige and Skoog (MS) medium or 0.5 X Woody Plant Medium (WPM). The most efficient treatment was MS medium with 8.9 µM BA+NAA, in which I. paraguariensis presented greater shoot elongation and higher...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aquifoliaceae; Growth regulators; Naphthaleneacetic acid; Vegetative micropropagation; Yerba mate.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062014000400008

Endozoochory by Didelphis albiventris Lund, 1840 (Mammalia, Didelphimorphia) in a Semideciduous Seasonal Forest remnant in the South of Brazil
Provedor de dados: Biota Neotropica
Autores: Junges,Susana de Oliveira; Consatti,Guilherme; Périco,Eduardo; Bordignon,Sérgio Augusto de Loreto; Freitas,Elisete Maria de; Cademartori,Cristina Vargas.
Abstract Seed dispersal is a process that is fundamental to maintenance of forest ecosystems, enabling plants to successfully germinate in sites that are favorable to their growth, minimizing risks of competition, the action of pathogens and predation by herbivores. Intraspecific and seasonal variations in fruit consumption by Didelphis albiventris, and its contribution to dispersal and germination of endozoochorous seeds were analyzed in a Semideciduous seasonal forest. The study was conducted at Morro do Coco, which is a hilly area in the municipal district of Viamão, RS, Brazil, bordering the shore of Guaíba lake (30º16’15”S, 51º02’54”W), between June 2013 and May 2014, with a total sampling effort of 2992 trap-nights. A total of 18 individuals were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: White-eared opossum; Germination inductor; Marsupial; Atlantic Rain Forest; Zoochory.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032018000100201

Antileishmanial in vitro activity of essential oil from Myrciaria plinioides, a native species from Southern Brazil
Provedor de dados: Brazilian Journal of Pharmaceutical Sciences
Autores: Kauffmann,Carla; Giacomin,Ana Caroline; Arossi,Kelen; Pacheco,Leandra Andressa; Hoehne,Lucélia; Freitas,Elisete Maria de; Machado,Gérzia Maria de Carvalho; Cavalheiro,Marilene Marcuzzo do Canto; Gnoatto,Simone Cristina Baggio; Ethur,Eduardo Miranda.
In South American folk medicine members of the genus Myrciaria are used for the treatment of malaria, diarrhoea, asthma, inflammation and post-partum uterine cleansing. The aim of this work was to evaluate its antileishmanial properties (in vitro) of essential oil derived from leaves of Myrciaria plinioides D. Legrand, a plant species that is native in South of Brazil. The essential oil was obtained by hydro-distillation using fresh leaves of M. plinioides. The chemical composition of this essential oil (MPEO, M. plinioides essential oil) was determined by gas chromatography coupled to mass spectrometry (GC-MS). MPEO was assayed in vitro for antileishmanial properties against promastigotes of Leishmania amazonensis and Leishmania infantum, and for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antileishmanial activity; Myrciaria plinioides; Myrtaceae; Leishmania amazonensis; Leishmania infantum.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502019000100558