Characterization of the molluscicidal activity of Bauhinia variegata and Mimusops elengi plant extracts against the fasciola vector Lymnaea acuminata.
The molluscicidal activity of Bauhinia variegata leaf and Mimusops elengi bark was studied against vector snail Lymnaea acuminata. The toxicity of both plants was time and concentration-dependent. Among organic extracts, ethanol extracts of both plants were more toxic. Toxicity of B. variegata leaf ethanolic extract (96h LC50- 14.4 mg/L) was more pronounced than M. elengi bark ethanolic extract (96h LC50-15.0 mg/L). The 24h LC50 of column purified fraction of B. variegata and M. elengi bark were 20.3 mg/L and 18.3 mg/L, respectively. Saponin and quercetin were characterized and identified as active molluscicidal component. Co-migration of saponin (Rf 0.48) and quercetin (Rf 0.52) with column purified bark of M. elengi and leaf of B. variegata on thin layer chromatography demonstrate same Rf value i.e. 0.48 and 0.52, respectively. The present study clearly indicates the possibility of using M. elengi and/or B. variegata as potent molluscicide.
Malacology Laboratory, Department of Zoology, DDU Gorakhpur University, India. vinaygkpuniv@gmail.com
Kanchan Lata
KL
Singh
D K
DK
Singh
Vinay Kumar
VK
Singh
D000818:Animals; D036481:Bauhinia / Q000737:chemistry*; D002855:Chromatography, Thin Layer; D004199:Disease Vectors; D005211:Fascioliasis / Q000635:transmission; D007928:Lethal Dose 50; D008195:Lymnaea / Q000187:drug effects*; D032130:Mimusops / Q000737:chemistry*; D008975:Molluscacides / Q000494:pharmacology*; D010936:Plant Extracts / Q000494:pharmacology*; D018515:Plant Leaves / Q000737:chemistry
D008975:Molluscacides; D010936:Plant Extracts