Trehalose and Glycogen Depletion during DDT Poisoning of American Cockroaches, Periplaneta americana

Author: GRANETT J.   LEELING N. C.  

Publisher: Entomological Society of America

ISSN: 1938-2901

Source: Annals of the Entomological Society of America, Vol.64, Iss.4, 1971-07, pp. : 784-789

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Abstract

In DDT-treated American cockroaches, Periplaneta americana (L.) (Orthoptera: Blattidae), glycogen and trehalose concentrations were lowered over a relatively short time span corresponding to the period from late hyperactivity to early prostration. Such a depletion did not occur in DDE (l,l,dichloro-2,2-bis(p-chlorophenyl) ethylene)-treated insects. This depletion corresponded with a peak in 14CO2 evolution from cockroaches receiving glucose-14C injections. The depletion occurred even when supplemental injections of up to 6 mg trehalose per cockroach were made, but was delayed by a rise in temperature. Dieldrin and propoxur poisoning caused a similar carbohydrate depletion. Carbohydrate depletion is proposed as a link between the effect of DDT on the nervous tissue and the response of the rest of the tissues of the insect.

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