Detoxifying enzymes and the effects of temperature on the toxicity of malathion to Oncopeltus fasciatus (Heteroptera) and Tenebrio molitor (Coleoptera)

Autor:	Albert Kirk, Fred Punzo
Rok vydání:	1992
Předmět:	Pharmacology Immunology Heteroptera Environmental factor Glutathione Biology medicine.disease_cause biology.organism_classification Median lethal dose Pupa Toxicology chemistry.chemical_compound Carboxylesterase Animal science chemistry Toxicity medicine Malathion
Zdroj:	Comparative Biochemistry and Physiology Part C: Comparative Pharmacology. 103:383-386
ISSN:	0306-4492
DOI:	10.1016/0742-8413(92)90025-3
Popis:	1. The effects of ambient temperature (T a ) on the toxicity of malathion to various life cycle stages of Tenebrio molitor and Oncopeltus fasciatus were investigated. 2. Higher T a (35°C) had a significant effect on toxicity, especially at concentrations above 70ppm. Nymphal stages of O. fasciatus were more susceptible than adults. The pupal stage of T. molitor was most resistant to combinations of high T a and insecticide concentration. 3. ld 50 ranged from 0.11 μg/insect to 0.23 ( T. molitor ), and 0.11 to 0.17 ( O. fasciatus ). 4. Activity (μmol/min/mg protein) of carboxylesterase and glutathione S-transferase ranged from 0.72–1.97, and 0.47 to 1.35, respectively.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a883733cd34fd879e8b585627208faab https://doi.org/10.1016/0742-8413(92)90025-3 Zobrazit plný text záznamu