June 2010

In-vitro and -vivo anti-Trypanosoma evansi activities of extracts from different parts of Khaya senegalensis

The in vitro activities of the aqueous and ethanolic extracts of the leaves, root bark and stem bark of Khaya senegalensis on Trypanosoma evansi were evaluated. The ethanolic extract of the stem bark was found to possess the highest in vitro activity among the six extracts tested; as it eliminated the parasites within 5 min post incubation at concentrations of 0.5 and 1 mg/ml....

Author(s): I. A. Umar, M. A. Ibrahim, N. A. Fari, S. Isah and D. A. Balogun

June 2010

Contribution of tree ants towards the low production of fruits in Phragmanthera capitata (Sprengel) S. Balle (Loranthaceae)

The follow up of the development of flowers of Phragmanthera capitata during four cycles of flowering had as objective to explain the low number of bays produced by this species observed in the agroecosystems of Douala. One collection of ants during morning were carried out in April, May and June 2009 on three floral knots belonging to a branch of P. capitata which parasites Citrus maxima, Psidium guajava and Theobroma...

Author(s): Mony Ruth, Dibong Siegfried Didier, Ondoua Joseph Marie, Engone Obiang Nestor Laurier, Boussim Issiaka Joseph, Amougou Akoa, Bilong Bilong