A novel function of red pigment-concentrating hormone in crustaceans: Porcellio scaber (Isopoda) as a model species

0340276 - BC 2010 RIV US eng J - Journal Article
Zralá, Jana - Kodrík, Dalibor - Zahradníčková, Helena - Zemek, Rostislav - Socha, Radomír
A novel function of red pigment-concentrating hormone in crustaceans: Porcellio scaber (Isopoda) as a model species.
General and Comparative Endocrinology. Roč. 166, č. 2 (2010), s. 330-336. ISSN 0016-6480. E-ISSN 1095-6840
R&D Projects: GA ČR GA522/07/0788
Institutional research plan: CEZ:AV0Z50070508
Keywords : crustacea * carbohydrates * metabolism
Subject RIV: ED - Physiology
Impact factor: 3.108, year: 2010

The RP HPLC and LC/MS QTOF analyses of the methanolic CNS extract from isopod crustacean the woodlouse, Porcellio scaber revealed a presence of the red pigment-concentrating hormone (Panbo-RPCH) in this species. It has been shown that this neuropeptide plays a role in mobilization of energy stores: topical treatments of P. scaber individuals by Panbo-RPCH in a concentration 20 pmol/μl increased the level of glucose in haemolymph about 4 times, while the level of trehalose was only doubled. The results demonstrated that glucose was the main carbohydrate mobilized by the Panbo-RPCH treatment: glucose was responsible for about 97% of total carbohydrate increasing. Despite the demonstration of hyperglycaemic activity of Panbo-RPCH, no stimulatory effect of this hormone on the locomotory activity of P. scaber was observed. The present study is the first discovery of an occurrence of Panbo-RPCH and its hyperglycaemic activity in the representative of the isopod crustaceans.
Permanent Link: http://hdl.handle.net/11104/0183553