Results: 298

Compuestos bioactios y evaluación de la actividad antioxidante de cálices y hojas de Hibiscus Sabdariffa Linn

Bio sci. (En línea); 3 (5), 2020
INTRODUCCIÓN: a nivel mundial Hibiscus sabdariffa, es reconocida por sus múltiples beneficios a la salud gracias a su contenido de compuestos bioactivos, representando una alternativa en el tratamiento de enfermedades crónicas y degenerativas. OBJETIVOS: el estudio tuvo como objetivo, comparar la conc...

Effect on hyperglycemia and pancreas cells of chaya aqueous extracts from two different regions in streptozotocin-induced diabetes rats

Cnidoscolus chayamansa is a native plant of the Mayan region, which is also cultivated in other places like northern Mexico, Tunisia and India. Many properties are attributed to Mayan Chaya, such as aid in the control of glycemia in diabetics. Thus this study aimed to evaluate the hypoglycemic effects of...

Determinación del porcentaje de miel de flores y miel de mielada comercializadas en supermercados de la ciudad de La Paz

Con-ciencia (La Paz); 8 (2), 2020
INTRODUCCIÓN: la miel, consumida por el hombre desde hace miles de años debido a sus propiedades organolépticas y terapéuticas, es el producto de la unión entre el mundo animal, la abeja (apis melífera), y el vegetal, el néctar de las flores y/o secreciones azucaradas de las plantas o insectos. En...

Ciclo de vida y enemigos naturales de Mechanitis menapis (Lepidoptera: Ithomiini)

Rev. biol. trop; 67 (6), 2019
Las mariposas de la tribu Ithomiini son uno de los modelos biológicos más estudiados en años recientes en trabajos de biogeografía, taxonomía y evolución. Sin embargo, aun cuando la biología y distribución de sus especies es mejor conocida que la de otros grupos de mariposas, existen aspectos de ...

Potential of botanical driven essential oils against Haemonchus contortus in small ruminants

The livestock sector is continuously facing problems in controlling parasitic diseases especially Haemonchosis due to emergence of anthelminthic resistance and failure in vaccination control programmes. Therefore, to increase milk and meat production and emerging demand of meat free from drug residues de...

Aquatic macrophytes and trophic interactions: a scientometric analyses and research perspectives

Braz. j. biol; 79 (4), 2019
Abstract Aquatic macrophytes have a recognized role in ecosystem structuring and an important position in trophic cascades interactions, whose understanding is to improve water quality. In recent years, the number of studies on the role of aquatic macrophytes in trophic webs and interactions has increas...

Secondary metabolites as a survival strategy in plants of high mountain habitats

This review work focuses on how the secondary chemistry could help in the survival of plants in high mountain habitats under extreme environmental conditions. The elevated levels of stress in high areas of the tropic and subtropic change dramatically not only by following the annual cycles of winter and ...

Antiproliferative activity of biomass extract from Pseudomonas cedrina

Background: The study of plant-associated microorganisms is very important in the discovery and development of bioactive compounds. Pseudomonas is a diverse genus of Gammaproteobacteria comprising more than 60 species capable of establishing themselves in many habitats, which include leaves and stems of ...

Comparison of the phytochemical profiles of five native plant species in two different forest formations

Braz. j. biol; 79 (2), 2019
Abstract The expression of chemical compounds by individual plants of the same species in different locations may be affected by abiotic factors resulting in differences in the production of allelopathic compounds. The objective of this study was to compare the phytochemical profiles of plant species fr...

Foliar anatomy of Rhynchosia spp. (Leguminosae, Papilionoideae) from Roraima state, northern Brazilian Amazon

Acta amaz; 49 (1), 2019
Comparative studies on the structure of foliar anatomy in four species of Rhynchosia from Roraima state (northern Brazilian Amazon) were carried out to identify additional morphological characters to support the definition of the systematic boundaries among the species. Fully expanded leaves, including t...