Sequestration of phorbolesters by the aposematically coloured bug Pachycoris klugii (Heteroptera: Scutelleridae) feeding on Jatropha curcas (Euphorbiaceae)

• Verfasst von: Wink, Michael [VerfasserIn]
• Verfasst von: Sporer, Frank [VerfasserIn]
• Titel: Sequestration of phorbolesters by the aposematically coloured bug Pachycoris klugii (Heteroptera: Scutelleridae) feeding on Jatropha curcas (Euphorbiaceae)
• Verf.angabe: M. Wink, C. Grimm, C. Koschmieder, F. Sporer and O. Bergeot
• Jahr: 2000
• Umfang: 6 S.
• Fussnoten: Gesehen am 06.10.2017
• Titel Quelle: Enthalten in: Chemoecology
• Ort Quelle: Cham : Springer International Publishing AG, 1990
• Jahr Quelle: 2000
• Band/Heft Quelle: 10(2000), 4, Seite 179-184
• ISSN Quelle: 1423-0445
• DOI: doi:10.1007/PL00001820
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1564143074

Abstract

Summary. The phorbol ester DHPB has been detected in 5th instars and adults of Pachycoris klugii which feed on Jatropha curcas, a producer of phorbol esters with mollusc-, insect-, and vertebrate toxicity. DHPB from Pachycoris activates protein kinase C (PKC) which appears to be the main molecular target for phorbol esters. Phorbol esters of J. curcas exhibit a wide range of acute toxic effects in vertebrates and insects. It is therefore likely that the sequestration of DHPB, which would explain the aposematic colouration of the bugs, confers chemical protection to P. klugii against vertebrate predators.