The anti-allergic of an aqueous extract of the leaves of Ailanthus excelsa Roxb.(AELAq) was evaluated by using milk induced leucocytosis and eosinophilia in mice, passive paw anaphylaxis in rats models while the anticataleptic properties was evaluated by Clonidine induced catalepsy in mice mode. The extract significantly (*p<0.05, **p< 0.01) decreased the leucocytosis and eosinophilia along wit...

Stem bark of Hippocratea excelsa afforded six pentacyclic triterpenes, five oleanane and one ursane types. They were identified as 11beta,21beta-dihydroxy-olean-12-ene-3-one (2), 3alpha,11alpha,21beta-trihydroxy-olean-12-ene (3), 3alpha,21beta-dihydroxy-11alpha-methoxy-olean-12-ene (4), 3alpha,21beta-dihydroxy-olean-9(11),12-diene (5), 3alpha,21beta-dihydroxy-olean-12-ene (6) and 3alpha,21beta-...

.............................................................................................................................................................................. 2 Introduction ......................................................................................................................................................................... 2 Materials and methods ................

This paper reports the first occurrence of Lasiodiplodia theobromae in Brazil nut (Bertholletia excelsa). Cankers were found on branches 3-year-old plants Belém, Pará, Brazil. The symptomatic displayed reddish vascular lesions. pathogen was identified using morphological and phylogenetic analyses. Koch’s postulates fulfilled, confirming L. nut.

Figure 1. Antigenotoxic activity of Borago officinalis plant material: (a) blue flowered (BF) and (b) white flowered (WF) plant material expressed as mutation frequency corrected to control. Strength of inhibition on the capability of H2O2 (0.12 M) to induce mutated cells is also shown (Inhibition Percentage in brackets). White columns correspond with tested concentrations of simple treatments,...

There is limited information on intra-annual plasticity of secondary tissues of tree species growing under different environmental conditions. To increase the knowledge about the plasticity of secondary growth, which allows trees to adapt to specific local climatic regimes, we examined climate-radial growth relationships of Norway spruce [Picea abies (L.) H. Karst.] from three contrasting locat...