The aim of the present study was to investigate, in vivo, the effect of a Brugmansia arborea extract (BRU), chromatographic fractions (FA and FNA), and isolated alkaloids on the expression and the acquisition of morphine tolerance and dependence. Substances were acutely (for expression) or repeatedly (for acquisition) administered in mice treated with morphine twice daily for 5 or 6 days, in or...

To evaluate the effect of fungal inoculants, a pot experiment was carried out on 30 days old transplanted seedlings of Gmelina arborea under nursery condition. Transplants were inoculated with seven day old liquid culture of Aspergillus ellipticus, Fusarium incarnatum, Aspergillus aculeatus, Aspergillus candidus, Penicillium species, Alternaria alternata, Penicillium species, Fusarium javanicum...

The aim of the present work is to assess the potential long-distance effect of a high-speed railway line on the distribution of the European tree frog (Hyla arborea) in eastern France by combining graph-based analysis and species distribution models. This combination is a way to integrate patch-level connectivity metrics on different scales into a predictive model. The approach used is put in p...

Two new names, Dracaena neoparviflora and ridleyii are proposed as replacement names for the illegitimate D. parviflora Baker, nutans Ridl., respectively, latter being a later homonym of Willd. ex Schult.f., H.Jaeger. Lectotypes designated D.cambodiana, interrupta (synonym camerooniana), oddonii cantleyi, cinnabari, cuspidibracteata congoensis), haemanthoides, litoralis braunii), parviflora, no...

Leaves of Gmelina arborea are used in traditional medicine for the treatment bacterial infections without scientific validations. The main objective research was to carry out preliminary phytochemical and antimicrobial screening methanol fractions leaf arborea. extract its were screened activity using standard procedures. Preliminary revealed presence alkaloids, flavonoids, saponins, phenolic c...

BACKGROUND AND AIMS Mimetic seeds simulate the appearance of fleshy fruits and arilled seeds without producing nutritive tissues as a reward for seed dispersers. In this strategy of seed dispersal, seeds may remain attached to the mother plant for long periods after maturity, increasing their availability to naïve seed dispersers. The hypothesis that seed coat impermeability in many tropical Fa...

More than 27 species of deep-sea corals have been identified off Atlantic Canada but their distributions are largely unknown. Bottom trawling is recognized as a threat to deep-sea corals in Atlantic Canada but the degree of damage has not been quantified. It is difficult to assess the level of conservation required for these organisms without basic information about their distribution. This stu...

Objective: To investigate the comparative wound-healing potency of aqueous and methanol leaf extracts of Vernonia arborea Hk. Materials and Methods: Excision, incision and dead space wound models were used to evaluate the wound-healing activity of Vernonia arborea Hk., on Swiss Wistar strain rats of either sex. In excision wound model, treatment was continued till the complete healing of the wo...

The vitamin A (retinol) and its metabolites such as retinoic acid (RA) affect vertebrate gametogenesis. The level of RA in cells relies on the balance between its synthesis and degradation. The sex-dependent equilibrium is reached in different ways in various species. It is known that RA induces meiosis in developing gonads in mouse, chicken and urodel amphibians, but its role in anuran amphibi...