Fenvalerate induced changes in evoked potentials from the ventral nerve cord (VNC) of cockroach, Periplaneta americana.
Changes in evoked potentials from the VNC of P. americana were recorded under in vitro and topical application of sublethal doses of fenvalerate. In this study significant changes in physical characteristics of action potentials like threshold voltage, duration, latency and amplitude were noticed. In in vitro studies the effects were found to be dose dependent, while in topical exposure maximum effect was noticed at 3h, followed by recovery during subsequent periods of exposure. Moreover, changes were more pronounced in in vitro than topical exposure.
Venkatramana Reddy
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AT
Department of Zoology, S.V. University, Tirupati, India.
Yellamma
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K
D000818:Animals; D005071:Evoked Potentials / Q000187:drug effects*; D007306:Insecticides / Q000633:toxicity*; D009420:Nervous System / Q000187:drug effects; D009570:Nitriles; D010526:Periplaneta / Q000187:drug effects*; D011722:Pyrethrins / Q000633:toxicity*
D007306:Insecticides; D009570:Nitriles; D011722:Pyrethrins; C017690:fenvalerate