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Reproductive status of Tribolium castaneum (Coleoptera : Tenebrionidae) affects its response to infection by Steinernema feltiae (Rhabditida : Steinernematidae)
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Except where otherwise noted, this item's license is described as Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa
Reproductive status of Tribolium castaneum (Coleoptera : Tenebrionidae) affects its response to infection by Steinernema feltiae (Rhabditida : Steinernematidae)
Bibliographic description
| title: | Reproductive status of Tribolium castaneum (Coleoptera : Tenebrionidae) affects its response to infection by Steinernema feltiae (Rhabditida : Steinernematidae) |
| author: | Kramarz Paulina  , Małek Dariusz , Gaweł Maria , Drobniak Szymon , Homa Joanna
|
| journal title: | European Journal of Entomology |
| volume: | 113 |
| date of publication : | 2016 |
| pages: | 309-314 |
| ISSN: |
1210-5759 |
| eISSN: |
1802-8829 |
| DOI: | |
| language: | English |
| journal language: | English |
| abstract in English: | Gender-specific reproductive roles are important factors determining sexual dimorphism. Here, we investigate the effects of sex-based differences and reproductive status on the defence of Tribolium castaneum (Herbst, 1797) (Coleoptera: Tenebrionidae) against infection by Steinernema feltiae (Filipjev, 1934) (Rhabditida: Steinernematidae). Female and male beetles, either virgin or post-copulation, were exposed individually to nematodes. Individuals were then sampled every 12 h, dissected, and checked for the presence of nematodes; we also measured their phenoloxidase (PO) activity. Reproductive status affected resistance to nematodes and PO activity as infected virgin individuals had a higher PO activity and lower mortality than reproducing individuals, with no differences between sexes. Mortality also increased with time, while PO activity did not change. Parasite load was related to reproductive status and sex, with reproducing females with the highest parasite loads in all treatments, and virgin males with more nematodes than sexually active males. Our results indicate that the costs of reproduction impair the immunological system of T. castaneum similarly in both sexes. It is possible, however, that other components of the immunological system that we did not measure, such as lysozyme activity, are impaired by infection with S. feltiae in a sex-specific way. |
| keywords in English: | Coleoptera, infection, sexual dimorphism, phenoloxidase, Steinernema feltiae, Rhabditida, Steinernematidae, Tribolium castaneum, Tenebrionide |
| affiliation: | Wydział Biologii i Nauk o Ziemi : Instytut Zoologii, Wydział Biologii i Nauk o Ziemi : Instytut Nauk o Środowisku |
| type: | journal article |
| subtype: | academic paper |
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Except where otherwise noted, this item's license is described as Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa
Projekt „Repozytorium otwartego dostępu do dorobku naukowego i dydaktycznego UJ” współfinansowany w ramach poddziałania 2.3.1 „Cyfrowe udostępnianie zasobów nauki” Programu Operacyjnego Polska Cyfrowa z Europejskiego Funduszu Rozwoju Regionalnego i budżetu państwa na podstawie umowy o dofinansowanie nr POPC.02.03.01-00-0030/17-00
