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  Surface carbohydrate composition of a tapeworm in its consecutive intermediate hosts: Individual variation and fitness consequences

Hammerschmidt, K., & Kurtz, J. (2005). Surface carbohydrate composition of a tapeworm in its consecutive intermediate hosts: Individual variation and fitness consequences. International Journal for Parasitology, 35(14), 1499-1507. doi:10.1016/j.ojpara.2005.08.011.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-D95B-E Version Permalink: http://hdl.handle.net/11858/00-001M-0000-000F-D95C-C
Genre: Journal Article

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Hammerschmidt_2005.pdf (Publisher version), 245KB
 
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 Creators:
Hammerschmidt, Katrin1, Author              
Kurtz, Joachim1, Author              
Affiliations:
1Department Evolutionary Ecology, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_1445634              

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Free keywords: Schistocephalus solidus; carbohydrate; lectin; molecular mimicry; host-parasite coevolution; fitness; evolutionary parasitology; innate immunity
 Abstract: Carbohydrates on parasite surfaces have been shown to play an important role in host-parasite coevolution, mediating host non-self recognition and parasite camouflage. Parasites that switch hosts can change their surface molecules to remain undetected by the diverse immune systems of their different hosts. However, the question of individual variation in surface sugar composition and its relation to infectivity, virulence, immune evasion and growth of a parasite in its different hosts is as yet largely unexplored. We studied such fitness consequences of variation in surface sugars in a sympatric host-parasite system consisting of the cestode Schistocephalus solidus and its intermediate hosts, a copepod and the three-spined stickleback. Using lectins to analyse the sugar composition, we show that the tapeworm changes its surface according to the invertebrate or vertebrate host. Importantly, sugar composition seems to be genetically variable, as shown by differences among tapeworm sibships. These differences are related to variation in parasite fitness in its second intermediate host, i.e. infectivity and growth. Surface sugar composition may thus be a proximate correlate of the evolutionarily relevant variability in infectivity and virulence of parasites in different hosts. (c) 2005 Australian Society for Parasitology Inc. Published by Elsevier Ltd. All rights reserved.

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Language(s): eng - English
 Dates: 2005-12
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Method: -
 Identifiers: eDoc: 250720
DOI: 10.1016/j.ojpara.2005.08.011
Other: 2430/S 38447
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Title: International Journal for Parasitology
Source Genre: Journal
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Pages: - Volume / Issue: 35 (14) Sequence Number: - Start / End Page: 1499 - 1507 Identifier: ISSN: 0020-7519