Reproductive status of Tribolium castaneum (Coleoptera : Tenebrionidae) affects its response to infection by Steinernema feltiae (Rhabditida : Steinernematidae)

2016
journal article
article
1
dc.abstract.enGender-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.pl
dc.affiliationWydział Biologii i Nauk o Ziemi : Instytut Zoologiipl
dc.affiliationWydział Biologii i Nauk o Ziemi : Instytut Nauk o Środowiskupl
dc.contributor.authorKramarz, Paulina - 129422 pl
dc.contributor.authorMałek, Dariusz - 165702 pl
dc.contributor.authorGaweł, Maria - 150470 pl
dc.contributor.authorDrobniak, Szymon - 103910 pl
dc.contributor.authorHoma, Joanna - 128342 pl
dc.date.accessioned2016-05-31T07:14:32Z
dc.date.available2016-05-31T07:14:32Z
dc.date.issued2016pl
dc.date.openaccess0
dc.description.accesstimew momencie opublikowania
dc.description.physical309-314pl
dc.description.versionostateczna wersja wydawcy
dc.description.volume113pl
dc.identifier.doi10.14411/eje.2016.039pl
dc.identifier.eissn1802-8829pl
dc.identifier.issn1210-5759pl
dc.identifier.projectROD UJ / Ppl
dc.identifier.urihttp://ruj.uj.edu.pl/xmlui/handle/item/27186
dc.languageengpl
dc.language.containerengpl
dc.rightsUdzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa*
dc.rights.licenceCC-BY
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/legalcode.pl*
dc.share.typeotwarte czasopismo
dc.subject.enColeopterapl
dc.subject.eninfectionpl
dc.subject.ensexual dimorphismpl
dc.subject.enphenoloxidasepl
dc.subject.enSteinernema feltiaepl
dc.subject.enRhabditida, Steinernematidaepl
dc.subject.enTribolium castaneumpl
dc.subject.enTenebrionidepl
dc.subtypeArticlepl
dc.titleReproductive status of Tribolium castaneum (Coleoptera : Tenebrionidae) affects its response to infection by Steinernema feltiae (Rhabditida : Steinernematidae)pl
dc.title.journalEuropean Journal of Entomologypl
dc.typeJournalArticlepl
dspace.entity.typePublication
dc.abstract.enpl
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.
dc.affiliationpl
Wydział Biologii i Nauk o Ziemi : Instytut Zoologii
dc.affiliationpl
Wydział Biologii i Nauk o Ziemi : Instytut Nauk o Środowisku
dc.contributor.authorpl
Kramarz, Paulina - 129422
dc.contributor.authorpl
Małek, Dariusz - 165702
dc.contributor.authorpl
Gaweł, Maria - 150470
dc.contributor.authorpl
Drobniak, Szymon - 103910
dc.contributor.authorpl
Homa, Joanna - 128342
dc.date.accessioned
2016-05-31T07:14:32Z
dc.date.available
2016-05-31T07:14:32Z
dc.date.issuedpl
2016
dc.date.openaccess
0
dc.description.accesstime
w momencie opublikowania
dc.description.physicalpl
309-314
dc.description.version
ostateczna wersja wydawcy
dc.description.volumepl
113
dc.identifier.doipl
10.14411/eje.2016.039
dc.identifier.eissnpl
1802-8829
dc.identifier.issnpl
1210-5759
dc.identifier.projectpl
ROD UJ / P
dc.identifier.uri
http://ruj.uj.edu.pl/xmlui/handle/item/27186
dc.languagepl
eng
dc.language.containerpl
eng
dc.rights*
Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa
dc.rights.licence
CC-BY
dc.rights.uri*
http://creativecommons.org/licenses/by/4.0/legalcode.pl
dc.share.type
otwarte czasopismo
dc.subject.enpl
Coleoptera
dc.subject.enpl
infection
dc.subject.enpl
sexual dimorphism
dc.subject.enpl
phenoloxidase
dc.subject.enpl
Steinernema feltiae
dc.subject.enpl
Rhabditida, Steinernematidae
dc.subject.enpl
Tribolium castaneum
dc.subject.enpl
Tenebrionide
dc.subtypepl
Article
dc.titlepl
Reproductive status of Tribolium castaneum (Coleoptera : Tenebrionidae) affects its response to infection by Steinernema feltiae (Rhabditida : Steinernematidae)
dc.title.journalpl
European Journal of Entomology
dc.typepl
JournalArticle
dspace.entity.type
Publication
Affiliations

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