Developmental disorders caused by Verbascum speciosum Schrad. Extracts in Drosophila melanogaster (Diptera: Drosophilidae)
The effect of aqueous seed extracts of Verbascum speciosum on the development biology of Drosophila melanogaster was determined. Various doses of boiled and unboiled extracts (2, 4, 6, 8 and 10 mg/100 mL standard
Drosophila medium (SDM)) were added to the standard medium of D. melanogaster. The use of the seed extracts significantly increased the mortality of the F1 generation. Emerged individuals belonging to F1 decreased with an
increase in dose (P<0.05). In addition, severe malformations were observed belonging to different extremities in the newly-emerged flies of F1 progeny. The results showed that unboiled seed extracts of V. speciosum are more toxic to
D. melanogaster than their boiled counterpart (Vsb<Vsub).
Keywords: Drosophila melanogaster, Verbascum speciosum, developmental biology, mortality
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