Selective destruction of a host blood cell type by a parasitoid wasp
| Autor: | Rose M. Rizki, T. M. Rizki |
|---|---|
| Rok vydání: | 1984 |
| Předmět: |
food.ingredient
Wasps Leptopilina Parasitoid Parasitoid wasp Blood cell food Phagocytosis Hemolymph Escherichia coli medicine Melanogaster Animals Heterotoma Ovum Multidisciplinary biology fungi Temperature Anatomy biology.organism_classification Hymenoptera Cell biology Drosophila melanogaster medicine.anatomical_structure Larva Mutation Female Research Article |
| Zdroj: | Proceedings of the National Academy of Sciences. 81:6154-6158 |
| ISSN: | 1091-6490 0027-8424 |
| DOI: | 10.1073/pnas.81.19.6154 |
| Popis: | Foreign objects that enter the hemocoel of Drosophila melanogaster larvae are encapsulated by one type of blood cell, the lamellocyte, yet eggs of the parasitoid wasp Leptopilina heterotoma remain unencapsulated in D. melanogaster larval hosts that have many lamellocytes. Here we demonstrate that shortly after a female wasp oviposits in the hemocoel the lamellocytes undergo morphological changes and lose their adhesiveness. These affected blood cells are eventually destroyed as the parasitoid egg continues its development. The factor responsible for lamellocyte destruction, lamellolysin, is contained in an accessory gland of the female reproductive system and is injected along with the egg into the host hemocoel. Lamellolysin does not alter the morphology or the defense functions of the other types of blood cells in the host. |
| Databáze: | OpenAIRE |
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