Naslov
Adipokinetic peptides increase effectivity of insecticides

Autori
Kodrík, Dalibor ; Velki, Mirna ; Bártů, Iva ; Večeřa, Josef ; Socha, Radomír

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
25th Conference of the European Comparative Endocrinologists : abstracts / - , 2010

Skup
Conference of the European Comparative Endocrinologists (25 ; 2010)

Mjesto i datum
Pečuh, Mađarska, 31.08.2010. - 04.09.2010

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
adipokinetic hormones; insecticides; stress response; oxidative stress; Pyrrhocoris apterus

Sažetak
Adipokinetic hormones (AKHs) are insect neuropetides controlling stress situations including those elicited by insecticide treatment. The effect of Pyrap-AKH on the mortality of the firebug Pyrrhocoris apterus treated by the insecticides with different mode of action including those eliciting the oxidative stress was studied. Co-application of the insecticides with 80 pmol Pyrap-AKH induced a significant increase in the bug mortality compared to the insecticide alone. Injection of the insecticides elicited significant increase of the AKH level in CNS and the haemolymph, which indicate an immediate involvement of AKH in the stress response. The enhanced effect of the insecticides by AKH treatment probably results from the stimulatory role on bug metabolism: the carbon dioxide production was increased significantly both after the insecticide treatment (vs. control) and after AKH plus insecticide co-treatment (vs. insecticide treatment alone). The AKH elevation of metabolism could intensify the action of insecticides by their faster penetration into tissues and by stimulation of metabolic turnover that results in enhancing of the insecticide elicited mortality. A role of AKH in the oxidative stress pathways was studied as well.

Izvorni jezik
Engleski

Znanstvena područja
Biologija

POVEZANOST RADA