Immune response to sympatric and allopatric parasites in a snail-trematode interaction
<p>Abstract</p> <p>Background</p> <p>The outcome of parasite exposure depends on the (1) genetic specificity of the interaction, (2) induction of host defenses, and (3) parasite counter defenses. We studied both the genetic specificity for infection and the specificity...
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| Format: | Article |
| Language: | English |
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BMC
2005-05-01
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| Series: | Frontiers in Zoology |
| Subjects: | |
| Online Access: | http://www.frontiersinzoology.com/content/2/1/8 |
| _version_ | 1818556154724220928 |
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| author | Osnas Erik E Lively Curtis M |
| author_facet | Osnas Erik E Lively Curtis M |
| author_sort | Osnas Erik E |
| collection | DOAJ |
| description | <p>Abstract</p> <p>Background</p> <p>The outcome of parasite exposure depends on the (1) genetic specificity of the interaction, (2) induction of host defenses, and (3) parasite counter defenses. We studied both the genetic specificity for infection and the specificity for the host-defense response in a snail-trematode interaction (<it>Potamopyrgus antipodarum-Microphallus </it>sp.) by conducting a reciprocal cross-infection experiment between two populations of host and parasite.</p> <p>Results</p> <p>We found that infection was greater in sympatric host-parasite combinations. We also found that the host-defense response (hemocyte concentration) was induced by parasite exposure, but the response did not increase with increased parasite dose nor did it depend on parasite source, host source, or host-parasite combination.</p> <p>Conclusion</p> <p>The results are consistent with a genetically specific host-parasite interaction, but inconsistent with a general arms-race type interaction where allocation to defense is the main determinant of host resistance.</p> |
| first_indexed | 2024-12-13T23:43:44Z |
| format | Article |
| id | doaj.art-660de3dfc02d4fa49b1bdd0c85259837 |
| institution | Directory Open Access Journal |
| issn | 1742-9994 |
| language | English |
| last_indexed | 2024-12-13T23:43:44Z |
| publishDate | 2005-05-01 |
| publisher | BMC |
| record_format | Article |
| series | Frontiers in Zoology |
| spelling | doaj.art-660de3dfc02d4fa49b1bdd0c852598372022-12-21T23:27:06ZengBMCFrontiers in Zoology1742-99942005-05-0121810.1186/1742-9994-2-8Immune response to sympatric and allopatric parasites in a snail-trematode interactionOsnas Erik ELively Curtis M<p>Abstract</p> <p>Background</p> <p>The outcome of parasite exposure depends on the (1) genetic specificity of the interaction, (2) induction of host defenses, and (3) parasite counter defenses. We studied both the genetic specificity for infection and the specificity for the host-defense response in a snail-trematode interaction (<it>Potamopyrgus antipodarum-Microphallus </it>sp.) by conducting a reciprocal cross-infection experiment between two populations of host and parasite.</p> <p>Results</p> <p>We found that infection was greater in sympatric host-parasite combinations. We also found that the host-defense response (hemocyte concentration) was induced by parasite exposure, but the response did not increase with increased parasite dose nor did it depend on parasite source, host source, or host-parasite combination.</p> <p>Conclusion</p> <p>The results are consistent with a genetically specific host-parasite interaction, but inconsistent with a general arms-race type interaction where allocation to defense is the main determinant of host resistance.</p>http://www.frontiersinzoology.com/content/2/1/8coevolutionlocal adaptationimmune defensetrematode |
| spellingShingle | Osnas Erik E Lively Curtis M Immune response to sympatric and allopatric parasites in a snail-trematode interaction Frontiers in Zoology coevolution local adaptation immune defense trematode |
| title | Immune response to sympatric and allopatric parasites in a snail-trematode interaction |
| title_full | Immune response to sympatric and allopatric parasites in a snail-trematode interaction |
| title_fullStr | Immune response to sympatric and allopatric parasites in a snail-trematode interaction |
| title_full_unstemmed | Immune response to sympatric and allopatric parasites in a snail-trematode interaction |
| title_short | Immune response to sympatric and allopatric parasites in a snail-trematode interaction |
| title_sort | immune response to sympatric and allopatric parasites in a snail trematode interaction |
| topic | coevolution local adaptation immune defense trematode |
| url | http://www.frontiersinzoology.com/content/2/1/8 |
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