Molluscicidal activity of some Brazilian Solanum spp. (Solanaceae) against Biomphalaria glabrata.
Plants in the genus Solanum (Solanaceae) produce a great variety of steroidal saponins and glycoalkaloids that confer natural resistance against several pests. Methanolic extracts of 13 Solanum species have now been tested for molluscicidal activity against Biomphalaria glabrata. The extracts investigated were prepared from the fruit of S. asperum, S. capsicoides, S. palinacantum, S. paludosum, S. paniculatum, S. paraibanum and S. sisymbriifolium, the aerial parts of S. asperum, S. capsicoides, S. crinitum, S. diamantinense, S. megalonyx, S. palinacantum, S. paniculatum, S. sisymbriifolium and S. torvum, and the roots of S. asperum, S. asterophorum, S. palinacantum, S. paludosum, S. paniculatum and S. stipulaceum. Encouragingly, the extracts from S. asperum, S. diamantinese, S. paludosum, S. sisymbriifolium and S. stipulaceum showed significant molluscicidal activity, the median lethal concentrations recorded (20-50 microg/ml) falling well below the threshold, of 100 microg/ml, set for a potential molluscicide by the World Health Organization.
Silva
T M S
TM
Laboratório de Tecnologia Farmacêutica, Universidade Federal da Paraíba, Campus I, João Pessoa, Brazil. sarmento@ltf.ufpb.br
Batista
M M
MM
Camara
C A
CA
Agra
M F
MF
D000818:Animals; D001681:Biological Assay / Q000379:methods; D001700:Biomphalaria / Q000469:parasitology; D004199:Disease Vectors; D008975:Molluscacides; D010936:Plant Extracts; D012552:Schistosomiasis / Q000517:prevention & control* / Q000635:transmission; D032322:Solanum
D008975:Molluscacides; D010936:Plant Extracts