Diet-dependent effects of gut bacteria on their insect host: the symbiosis of Erwinia spec. and western flower thrips
| Autor: | E.J. de Vries, Maurice W. Sabelis, J.A.J. Breeuwer, Steph B. J. Menken, Gerrit Jacobs |
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| Přispěvatelé: | Evolutionary Biology (IBED, FNWI) |
| Rok vydání: | 2004 |
| Předmět: |
Insecta
Oviposition media_common.quotation_subject Insect Biology Erwinia General Biochemistry Genetics and Molecular Biology Eating Symbiosis Botany Animals General Environmental Science media_common Analysis of Variance General Immunology and Microbiology Thrips Host (biology) Reproduction General Medicine biology.organism_classification Western flower thrips Diet General Agricultural and Biological Sciences Digestive System Bacteria Research Article Symbiotic bacteria |
| Zdroj: | Proceedings of the Royal Society B-Biological Sciences, 271, 2171-2178. Royal Society of London |
| ISSN: | 0962-8452 |
| DOI: | 10.1098/rspb.2004.2817 |
| Popis: | Studies on bacteria in the gut of insect species are numerous, but their focus is hardly ever on the impact onhost performance. We showed earlier that Erwinia bacteria occur in the gut of western flower thrips, mostprobably acquired during feeding. Here, we investigate whether thrips gain a net benefit or pay a net costbecause of these gut bacteria. On a diet of cucumber leaves, the time to maturity is shorter and the ovipositionrate is higher in thrips with bacteria than in thrips without (aposymbionts). When fed on cucumberleaves and pollen, aposymbionts develop faster and lay more eggs. So Erwinia bacteria benefit or parasitizetheir thrips hosts depending on the diet, which is in accordance with theoretical predictions for fitness oforganisms engaged in symbiotic interactions. Possibly, the transmission of gut bacteria has not becomestrictly vertical because of this diet-dependent fitness variability. |
| Databáze: | OpenAIRE |
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