Abstract The quality of forage production is a prerequisite to raising livestock. Therefore, income losses in this activity, primarily cattle raising, can result in the impossibility of economic activity. Through the qualitative and quantitative anatomical study of Urochloa hybrida cv. Mulato II and U. b...
Abstract Soil flooding is an environmental stressor for crops that can affect physiological performance and reduce crop yields. Abiotic stressors cause changes in protein synthesis, modifying the levels of a series of proteins, especially the heat shock proteins (HSP), and these proteins can help protect...
Abstract The aim of this study was to compare vitroplants Catasetum x apolloi grown under natural light and artificial light and different concentrations of potassium silicate, providing data on the anatomical differentiation that aids the acclimatization process of this species. Plants from in vitro see...
Abstract Some macrophytes species show a high growth potential, colonizing large areas on aquatic environments. Cattail (Typha angustifolia L.) uncontrolled growth causes several problems to human activities and local biodiversity, but this also may lead to competition and further problems for this speci...
Adaptación Fisiológica/fisiología,
Análisis de Varianza,
Organismos Acuáticos/fisiología,
Biodiversidad,
Hojas de la Planta/crecimiento & desarrollo,
Raíces de Plantas/anatomía & histología,
Densidad de Población,
Distribución Aleatoria,
Estrés Fisiológico/fisiología,
Typhaceae/anatomía & histología,
Typhaceae/fisiología
ABSTRACT A new lactone, 7-epi-griffonilide (1), and six known compounds, 2, 3a - 3c, 4a and 4b, were isolated from the leaves of Bauhinia pentandra (Fabaceae). The structures elucidation of 1 and 2 were based on detailed 2D NMR techniques and spectral comparison with related compounds, leading to complet...
ABSTRACT Mansoa hirsuta (Bignoniaceae) is a native plant from caatinga in Brazilian semiarid. This plant has been locally used as antimicrobial and hypoglycemiant agents, but their action mechanisms and toxicity remain largely unknown. Therefore, we evaluated the composition and antioxidant, cytoprotecti...
Antioxidantes/aislamiento & purificación,
Antioxidantes/farmacología,
Bignoniaceae/química,
Brasil,
Supervivencia Celular/efectos de los fármacos,
Células Cultivadas,
Cricetinae,
Citoprotección,
Etanol/química,
Fibroblastos/efectos de los fármacos,
Hipoglucemiantes/aislamiento & purificación,
Hipoglucemiantes/farmacología,
Cebollas/efectos de los fármacos,
Extractos Vegetales/farmacología,
Hojas de la Planta/química,
Valores de Referencia,
Reproducibilidad de los Resultados,
Triterpenos/química,
alfa-Amilasas/química
ABSTRACT Banded iron formations (BIF) have a particular vegetation type and provide a good model system for testing theories related to leaf phenology, due to unique stressful environmental conditions. As a consequence of the stressful conditions of BIF environment, we hypothesize that most species would...
Brasil,
Ecosistema,
Hierro/química,
Fotoperiodo,
Hojas de la Planta/fisiología,
Lluvia,
Estaciones del Año,
Suelo/química,
Temperatura,
Factores de Tiempo,
Árboles/fisiología,
Clima Tropical
ABSTRACT Bauhinia holophylla, commonly known as "cow's hoof", is widely used in Brazilian folk medicine for the diabetes treatment. Therefore, the aim of this study was at evaluating the aqueous extract effect of Bauhinia holophylla leaves treatment on the streptozotocin-induced diabetic rats. Diabetes w...
Bauhinia/química,
Glucemia/análisis,
Glucemia/efectos de los fármacos,
Peso Corporal,
Diabetes Mellitus Experimental/tratamiento farmacológico,
Ingestión de Líquidos,
Ingestión de Alimentos,
Prueba de Tolerancia a la Glucosa,
Hipoglucemiantes/farmacología,
Hipoglucemiantes/uso terapéutico,
Extractos Vegetales/farmacología,
Extractos Vegetales/uso terapéutico,
Hojas de la Planta/química,
Ratas Wistar,
Reproducibilidad de los Resultados,
Estreptozocina,
Factores de Tiempo,
Resultado del Tratamiento
Introducción: el tamizaje fitoquímico de una planta brinda una percepción sobre los posibles beneficios medicinales; la literatura refiere información de esta determinación en las hojas deAnacardium occidentale L., Psidium guajava L., Morinda citrifolia L. y Moringa oleifera Lam. , no obstante, en c...
ResumenLas condiciones ecológicas de los ríos altoandinos tropicales estan amenazadas por numerosas actividades humanas que incluyen aquellas derivadas del cambio de la cobertura y uso del suelo de la cuenca. Para su evaluación se han propuesto protocolos que diagnostican el estado de la estructura pe...
