Przeglądaj wg Autor "Wyszkowska, Joanna"

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    Hemolymph pH as a marker of pesticide exposition
    (Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2017) Maliszewska, Justyna; Wyszkowska, Joanna; Tęgowska, Eugenia; Department of Animal Toxicology, Nicolaus Copernicus University, Toruń; Department of Biophysics, Nicolaus Copernicus University, Toruń; Department of Animal Toxicology, Nicolaus Copernicus University, Toruń
    Changes in blood biochemical parameters reflects disorders in the whole body after exposition to contaminants. Insect hemolymph circulates in direct contact with the animals’s tissues, therefore every disruption that appears in the body is reflected in change of hemolymph parameters. The aim of this study was to assess the potential of hemolymph pH as the marker of insecticide intoxication. Experiments were performed on mealworms Tenebrio molitor L., intoxicated with insecticides’ characterized by different mechanisms of insecticidal action – pyrethroid, oxadiazine, neonicotinoid and organophospate in different ambient temperatures (15°C, 25°C and 35°C). Hemolymph pH and insects’ mortality after intoxication was assessed after three days from insecticides application. The results obtained showed a correlation between mortality and pH of the hemolymph. Intoxication with insecticides resulted in pH decrease: the greater decline was determined, the higher mortality was observed. The results indicate that hemolymph pH may be used as a marker of organism exposition to xenobiotics.