Abstract:
:The cytotoxic and genotoxic effects of aqueous extracts of five medicinal plants: Azadirachta indica (A. Juss), Morinda lucida (Benth.), Cymbopogon citratus (DC Stapf.), Mangifera indica (Linn.) and Carica papaya (Linn.) was evaluated using the Allium cepa assay. The extracts were prepared with tap water as practised locally. Onion bulbs were exposed to 1, 5, 10, 25 and 50%; and 1, 2.5, 5, 10 and 20% concentrations (v/v) of each of the extracts for macroscopic and microscopic analyses, respectively. There was concentration-dependent and statistically significant (P<0.05) inhibition of root growth by the extracts when compared with the control. The EC(50) obtained for decoctions of Azadirachta indica. Cymbopogon citratus, Mangifera indica and Carica papaya were 0.6, 3.0, 1.4 and 0.8%, respectively. It was 2.6 and 0.8% for the squeezed extracts of Azadirachta indica and Morinda lucida, respectively. All the tested extracts were observed to have mitodepressive effects on cell division and induced mitotic spindle disturbance in Allium cepa. These results suggest an inhibitory, mitodepressive and turbagenic activities of the aqueous extracts on Allium cepa.
journal_name
J Ethnopharmacoljournal_title
Journal of ethnopharmacologyauthors
Akinboro A,Bakare AAdoi
10.1016/j.jep.2007.04.014subject
Has Abstractpub_date
2007-07-25 00:00:00pages
470-5issue
3eissn
0378-8741issn
1872-7573pii
S0378-8741(07)00206-1journal_volume
112pub_type
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