Consulta: creatorFacets:"Mielniczki-Pereira,Albanin Aparecida"
Registros recuperados: 2
Data/hora: 01/06/2024 13:56:10

Genetic diversity in populations of Maytenus dasyclada (Celastraceae) in forest reserves and unprotected Araucaria forest remnants
Provedor de dados: Acta Botanica Brasilica
Autores: Reichmann,Manuel Castilhos; Zanella,Camila Ângela; Valério Júnior,Cláudio; Borges,Ana Claudia Piovezan; Sausen,Tanise Luisa; Paroul,Natalia; Mielniczki-Pereira,Albanin Aparecida; Teixeira,Amito José; Budke,Jean Carlos; Mossi,Altemir José; Cansian,Rogério Luis.
ABSTRACT Understanding the genetic structure and diversity of plants is fundamental to their conservation and permits their sustainable use by local communities. The genus Maytenus (Celastraceae) is composed of plants possessing pharmacological and antioxidant properties. However, the genetic and economic properties of the species M. dasyclada, a typical species of Araucaria forests in Brazil and Uruguay, have been little studied. In this work, the genetic structure and diversity of natural populations of M. dasyclada located in unprotected and preserved forest remnants were investigated using RAPD and isozymes markers. The results demonstrated that in areas of preservation, populations of M. dasyclada possess a relatively high degree of polymorphism and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Conservation; Forest reserves; Genetic diversity; Maytenus dasyclada; Molecular markers.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062017000100093

Phytochemical profile of morphologically selected yerba-mate progenies
Provedor de dados: Ciência e Agrotecnologia
Autores: Valduga,Alice Teresa; Gonçalves,Itamar Luís; Dartora,Nessana; Mielniczki-Pereira,Albanin Aparecida; Souza,Lauro Mera de.
ABSTRACT Yerba-mate (Ilex paraguariensis St. Hil) is a native South American species. Plant progenies are populations that differ in terms of their productivity, morphology and phytochemical profile. This study aimed to determine the concentration of primary and secondary metabolites, such as antioxidants, in leaves, of yerba-mate progenies selected based on morphological characteristics. We evaluated the centesimal composition of secondary metabolites in the leaves of five yerba-mate plants. Methylxanthines and phenolic compounds were determined by UPLC-PDA, and antioxidant activity by measuring DPPH scavenging. Significant differences were found in centesimal composition and the contents of caffeine, theobromine, rutin and chlorogenic acid, as well as...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ilex paraguariensis St. Hil.; Plant selection; Secondary metabolites.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542016000100114