Changes induced on the metabolic rate of three insect species by juvenile hormone and precocene II treatments

Abstract
The effects of juvenile hormone and precocoene II on the metabolic rate of Blattela germanica L. (Blattaria, Blattellidae), Spilostethus pandurus Scop. (Heteroptera: Lygaeidae) and Oncopeltus fasciatus Dallas (Heteroptera: Lygaeidae) 5th instar nymphs and adults have been investigated. Direct volumetric method was used to determine the oxygen consumption rate. JH produced a stage and/or sex dependent increase in the metabolic rate according to the species considered. On the other hand, PII decreased oxygen consumption in Blattella germanica and S. pandurus fifth instar and males, whereas O. fasciatus metabolic rate was not affected by the treatment.
Keywords:
Animals, Basal Metabolism/drug effects, Benzopyrans/pharmacology, Cockroaches/growth and development/metabolism, Female, Hemiptera/growth and development/metabolism, Juvenile Hormones/antagonists and inhibitors/pharmacology, Larva/metabolism, Male, Oxygen Consumption/drug effects, Species Specificity, Precocene II, Metabolic rate, Blattella germanica, Spilostethus pandurus, Oncopeltus fasciatus
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