Methoprene modifies adipokinetic hormone characteristics in the firebug Pyrrhoceris apterus (Heteropeta: Pyrrhocoridae)

0337131 - BC 2010 RIV CZ eng J - Článek v odborném periodiku
Kodrík, Dalibor - Alquicer, Glenda - Socha, Radomír
Methoprene modifies adipokinetic hormone characteristics in the firebug Pyrrhoceris apterus (Heteropeta: Pyrrhocoridae).
European Journal of Entomology. Roč. 107, č. 1 (2010), s. 33-39. ISSN 1210-5759. E-ISSN 1802-8829
Grant CEP: GA ČR GA522/07/0788
Výzkumný záměr: CEZ:AV0Z50070508
Klíčová slova: AKH * juvenile hormone analogue * lipid mobilization
Kód oboru RIV: ED - Fyziologie
Impakt faktor: 0.945, rok: 2010
http://www.eje.cz/scripts/viewabstract.php?abstract=1505

The hypothesis that there is a feedback between juvenile hormone and adipokinetic hormones (AKHs) was investigated by application of the juvenoid methoprene on the males of the firebug Pyrrhocoris apterus. This juvenoid induced a significant reduction of haemolymph lipids 24 hours after treatment; however, it did not significantly reduce the ability of Pyrap-AKH to mobilize fat body lipids 6 - 72 hours after the methoprene application. The same methoprene treatment elicited a significant increase of AKH content in the CNS of experimental males 24 and 48 hours after the juvenoid application. A significant decrease in the AKH level in the haemolymph was recorded under the same experimental conditions. Similar results were observed when production of the AKHs was measured under in vitro conditions. It is suggested that methoprene may reduce AKH release from the CNS resulting in an increase in the AKH content of the CNS due to accumulation rather than stimulation of AKH synthesis.
Trvalý link: http://hdl.handle.net/11104/0005689