Effects of varying concentrations of the crude aqueous and ethanolic extracts of Dalbergia sissoo plant parts on Biomphalaria pfeifferi egg masses

Bibliographic Data

ID20345772
AuthorsAA Adenusi, Adedotun A Adenusi (0000-0002-1639-3887, Olabisi Onabanjo University), A Odaibo, Alexander B Odaibo (0000-0002-9743-9751, University of Ibadan)
Year2010
Volume6
Issue2
Pages139-49
Publication date2010-07-28
Open AccessYes
TypeARTICLE
VenueAfrican Journal of Traditional Complementary and Alternative Medicines (JOURNAL)
Journal identifiersISSN: 0189-6016 • E-ISSN: 2505-0044
PublisherAfrican Journals Online (AJOL) (PUBLISHER)
DOI10.4314/ajtcam.v6i2.57085
PMID20209005
OpenAlexW2113560798
LanguageEN
Citations received1
References cited8

This study evaluated, using replicated laboratory bioassays, the toxicities of the crude aqueous and ethanolic extracts of Dalbergia sissoo Roxb. 1832 (family Leguminosae) fruits, leaves, roots and stem bark against egg masses of Biomphalaria pfeifferi (Krauss, 1848), the snail intermediate host of Schistosoma mansoni (Sambon, 1907) in Nigeria. Viable 0-24 hr-old embryonated egg masses were separately exposed to five different concentrations (7.81-2000 mg/l) of extracts for 24 hrs, washed in dechlorinated tap water and incubated at room temperature for a maximum of 4 weeks. The LC(50) and LC(90) values of test extracts for egg masses were calculated by probit analysis. The activities of the tested extracts were concentration-dependent. However, only the ethanolic extract of the fruits demonstrated significant activity (24 hr-LC(90) value < 100 mg/l: 89.29 mg/l). Mortalities of eggs were manifested at the gastrula/exogastrula and or the prehatch snail stage of development. The percentage of dead embryos at the prehatch snail stage decreased while the deaths of embryos at the gastrula/exogastrula stage increased, with increasing concentration of extract. Lethality of the ethanolic extract of D. sissoo fruits to embryonated egg masses of B. pfeifferi is an added advantage to its potential development for use as a plant molluscicide, as the overall efficacy of a molluscicide is greatly enhanced if it also shows significant toxicity towards snail eggs

Aqueous extract · Biology · Botany · Dalbergia · Dalbergia sissoo · Traditional medicine · Chemistry · Ethnobotanical and Medicinal Plants Studies · Medicine · Parasites and Host Interactions · Phytochemistry and Bioactivity Studies · Toxicology

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