Structure and function of the extraembryonic membrane persisting around the larvae of the parasitoid Toxoneuron nigriceps
| Autor: | Patrizia Falabella, Gianpaolo Perletti, M. Rivas-Pena, Barbara Giordana, Silvia Caccia, Roberto Ferrarese, Terenzio Congiu, Roberto Valvassori, Gianluca Tettamanti, Annalisa Grimaldi, M. de Eguileor, Francesco Pennacchio |
|---|---|
| Přispěvatelé: | Grimaldi, A, Caccia, Silvia, Congiu, T, Ferrarese, R, Tettamanti, G, RIVAS PENA, M, Perletti, G, Valvassori, R, Giordana, B, Falabella, P, Pennacchio, Francesco, DE EGUILEOR, M. |
| Rok vydání: | 2006 |
| Předmět: |
animal structures
Sugar absorption Physiology Skin Absorption Wasps Extraembryonic Membranes Parasitism Hymenoptera Permeability Host-Parasite Interactions Parasitoid Serous Membrane Animals Serosal membrane Nutrition Larva biology Hatching Ecology fungi biology.organism_classification Cell biology Larval development Insect Science Ultrastructure Immunoevasion Instar Host regulation Animal Nutritional Physiological Phenomena Braconidae |
| Zdroj: | Journal of Insect Physiology. 52:870-880 |
| ISSN: | 0022-1910 |
| Popis: | The embryo of Toxoneuron nigriceps (Hymenoptera, Braconidae) is surrounded by an extraembryonic membrane, which, at hatching, releases teratocytes and gives rise to a cell layer embedding the body of the 1st instar larva. This cell layer was studied at different developmental times, from soon after hatching up to the first larval moult, in order to elucidate its ultrastructural, immunocytochemical and physiological function. The persisting "larval serosa" shows a striking structural and functional complexity: it is a multifunctional barrier with protective properties, limits the passage of macromolecules and it is actively involved in the enzymatic processing and uptake of nutrients. The reported results emphasizes the important role that the embryo-derived host regulation factors may have in parasitism success in Hymenoptera koinobionts. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect