Volume No. 7 Issue No.: 3 Page No.: 1201-1209 Jan. - Mar.2013

 

FORSKOLIN : AN EFFECTIVE GROWTH AND DEVELOPMENT INHIBITOR OF Tribolium confusum

 

Vasudha Lingampally,* V. R. Solanki and Sabita S. Raja

Department of Zoology, Nizam College (A), Osmania University, Hyderabad, Andhra Pradesh (INDIA)

 

Received on : August 2, 2012

 

ABSTRACT

 

Forskolin (A diterpene extracted from the roots of a medicinal plant, Coleus forskohlii) affected normal growth and development of Tribolium confusum (Duval) (Coleoptera : Tenebrionidae). The fifth instar, sixth instar larvae and pupae were treated with 1?l of Forskolin. Forskolin resulted in marked growth and developmental disruption and inhibition of metamorphosis. Interference in moulting process, ecdysial failure and blockage of adult emergence were the important morphogenetic abnormalities observed which resulted in the formation of permanent larvae, larval-pupal intermediates, abnormal pupae, pupal-adult intermediates and deformed adults. These resultant forms were ruled out from further development and reproduction. Our results suggest that Forskolin can prevent or reduce progeny production by influencing growth and development of immature stages of Tribolium confusem. Moreover, the inhibition of metamorphosis would prevent subsequent generations from propogation.

 

Keywords : Forskolin, Tribolium confusum, Morhogenetic abnormalities, Moulting, Growth-inhibition

 

 

BACK