G. Musongong
Parasitology Laboratory, Institute of Agricultural Research for Development, Wakwa Regional Centre, P.O. Box65, Ngaoundere, Cameroon
E. N. Nukenine
Department of Biological Sciences, University of Ngaoundere,
P.O. Box 454, Ngaoundere, Cameroon
M. Ngassoum
Department of Applied Chemistry, National Advanced School of Agro-Industrial Sciences, University ofNgaoundere, P.O. Box 455, Ngaoundere, Cameroon
T. Gangue
Department of Biological Sciences, University ofNgaoundere,
P.O. Box 454, Ngaoundere, Cameroon
O. Messine
Parasitology Laboratory, Institute of Agricultural Research for Development, Wakwa Regional Centre, P.O. Box65, Ngaoundere, Cameroon
C. N. Fokunang
Bioserve Ltd, Toxicology Unit, Athlone Institute of Technology, Co. Westmeath, Ireland
F.G. Zalom
College of Agricultural and Environmental Sciences, University of California, Davis, CA 95616, USA
L. M. Njongmeta
Parasitology Laboratory, Institute of Agricultural Research for Development, Wakwa Regional Centre, P.O. Box65, Ngaoundere, Cameroon
V. Tanya
Parasitology Laboratory, Institute of Agricultural Research for Development, mWakwa Regional Centre, P.O. Box65, Ngaoundere, Cameroon
ABSTRACT
Ethanolic leaf extracts from five herbal plants (Annona senegalensis, Lantana camara, Steganotaenia araliacea, Vernonia amygdalina and Vernonia tonoreana), collected in the Adamawa Province of Cameroon, were assessed for toxicity against the infective larval stage (third-instar) of Strongyloides papillosus (Weedl), for post-exposure periods ranging from 1-48 h. Acute toxicity at 24 and 48 h post-exposure were also determined. Larval mortality increased over time for all of the herbal extracts at all concentration levels. A maximum 100% mortality at 48 h post-exposure was recorded only for A. senegalensis. LC50 values recorded at 48 h post exposure were A. senegalensis (0.100%), V. tonoreana (0.107%), S. araliacea (0.183%), V. amygdalina (0.203) and L. camara (0.496%). High acute toxicity was recorded for A. senegalensis, V. tonoreana and S. araliace, suggesting these plants could yield natural alternative treatment products for S. papillosus.
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How to cite this article
G. Musongong, E. N. Nukenine, M. Ngassoum, T. Gangue, O. Messine, C. N. Fokunang, F.G. Zalom, L. M. Njongmeta and V. Tanya, 2004. In vitro Toxicity of Ethanolic Plant Extracts from Adamawa Province, Cameroon to Infective Larvae of Strongyloides papillosus. Journal of Biological Sciences, 4: 763-767.
DOI: 10.3923/jbs.2004.763.767
URL: https://scialert.net/abstract/?doi=jbs.2004.763.767
DOI: 10.3923/jbs.2004.763.767
URL: https://scialert.net/abstract/?doi=jbs.2004.763.767
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