Introducción: El Páramo es uno de los ecosistemas más afectados por actividades humanas, lo que aumenta la necesidad de estudios fenológicos como base para el manejo y la conservación. Objetivo: Describir la feno-morfología de Miconia ligustrina y Miconia elaeoides. Métodos: De septiembre 2019 a f...
Melastoma malabathricum (M. malabathricum) extracts have been reported to exert various pharmacological activities including antioxidants, anti-inflammatory and antiproliferative activities. The objective of the present study was to determine the anticarcinogenic activity of its methanol extract (MEMM)...
Melastomataceae/química,
Extractos Vegetales/administración & dosificación,
Anticarcinógenos/administración & dosificación,
Hojas de la Planta,
Metanol,
Neoplasias del Colon/tratamiento farmacológico,
Cromatografía Líquida de Alta Presión,
Ratas Sprague-Dawley,
Colon/patología,
Focos de Criptas Aberrantes,
Peso Corporal/efectos de los fármacos,
Tamaño de los Órganos/efectos de los fármacos,
Antioxidantes,
Compuestos Fenólicos,
Carcinogénesis/efectos de los fármacos
Plants possess a renewable source of metabolites with enormous chemical structural diversity, which may have potential therapeutic relevance. Furthermore, this chemical diversity favors the possibility of finding new and different chemical constituents with antimicrobial, antioxidant and anti-tumor activ...
Gomes, Lorena Ferreira;
Martins, Diegue Henrique Nascimento;
da Silva, Sandra Mazutti;
de Barros, Yuri Yabu;
de Souza, Paula Monteiro;
de Freitas, marcela Medeiros;
Fagg, Cristopher William;
Simeoni, Luiz Alberto;
Magalhaes, Pérola Oliveira;
Silveira, Damaris;
Fonseca Bazzo, Yris Maria.
The objective of this study was to evaluate biological and phytochemical properties of the aqueous extract from the leaves of Miconia chamissois Naudin (AEMC). Phytochemical properties were assessed by analyzing the chromatographic profile and the polyphenol content of AEMC. Biological properties evalua...
Melastomataceae/química,
Extractos Vegetales/química,
Polifenoles/análisis,
Extractos Vegetales/farmacología,
alfa-Amilasas/antagonistas & inhibidores,
Monofenol Monooxigenasa/antagonistas & inhibidores,
Antioxidantes/farmacología,
Antiinfecciosos/farmacología,
Cromatografía Líquida de Alta Presión,
Flavonoides/análisis,
Cromatografía en Capa Delgada
Abstract Macroinvertebrate shredders consume preferably leaves conditioned by fungi and bacteria which offer greater palatability to them. Plant species in Cerrado present high concentration of chemical elements such as lignin and cellulose, phenols and tanins thus making them less attractive for shredd...
Brasil,
Dieta,
Preferencias Alimentarias,
Herbivoria,
Insectos/fisiología,
Melastomataceae/fisiología,
Hojas de la Planta/clasificación,
Hojas de la Planta/fisiología,
Ríos/química,
Sapotaceae/fisiología,
Árboles/clasificación,
Árboles/fisiología
Abstract Fire is a recurrent disturbance in savanna vegetation and savanna species are adapted to it. Even so, fire may affect various aspects of plant ecology, including phenology. We studied the effects of a spatially heterogeneous fire on the reproductive phenology of two dominant woody plant species,...
Background: Memecylon species are commonly used in Indian ethnomedical practices. The accurate identification is vital to enhance the drug's efficacy and biosafety. In the present study, PCR based techniques like RAPD, ISSR and DNA barcoding regions, such as 5s, psbA-trnH, rpoC1, ndh and atpF-atpH, were ...
Miconia ligustroides (DC.) Naudim, popularly known as “vassoura-preta” or “jacatirão-do-brejo” is widely distributed in Brazil. It is a recommended species for restoration of riparian areas and its fruits are attractive to wildlife. However, little is known about the morphology of its fruits and...
A palynological analysis of an organic paleosol found at 150-125 cm depth in a Mauritia swamp from the Eastern Orinoco Llanos is presented. The 25 cm pollen record summarizes the vegetation history during the Early Holocene, from 10,225 to 7,800 calendar yr BP. The vegetation was characterized by a Poace...
