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  The role of tissue-specific microbiota in initial establishment success of Pacific oysters

Lokmer, A., Künzel, S., Baines, J. F., & Wegner, a. M. (2016). The role of tissue-specific microbiota in initial establishment success of Pacific oysters. Environmental Microbiology, 18(3), 970-987. doi:10.1111/1462-2920.13163.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-0C5C-4 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002C-0C5D-2
Genre: Journal Article

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 Creators:
Lokmer, Ana, Author
Künzel, Sven1, Author              
Baines, John F.2, Author              
Wegner, andKarl Mathias, Author
Affiliations:
1Department Evolutionary Genetics, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_1445635              
2Guest Group Evolutionary Genomics, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_1445638              

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 Abstract: Microbiota can have positive and negative effects on hosts depending on the environmental conditions. Therefore, it is important to decipher host-microbiota-environment interactions, especially under natural conditions exerting (a)biotic stress. Here, we assess the relative importance of microbiota in different tissues of Pacific oyster for its successful establishment in a new environment. We transplanted oysters from the Southern to the Northern Wadden Sea and controlled for the effects of resident microbiota by administering antibiotics to half of the oysters. We then followed survival and composition of haemolymph, mantle, gill and gut microbiota in local and translocated oysters over 5 days. High mortality was recorded only in non-antibiotic-treated translocated oysters, where high titres of active Vibrio sp. in solid tissues indicated systemic infections. Network analyses revealed the highest connectivity and a link to seawater communities in the haemolymph microbiota. Since antibiotics decreased modularity and increased connectivity of the haemolymph-based networks, we propose that community destabilization in non-treated translocated oysters could be attributed to interactions between resident and external microbiota, which in turn facilitated passage of vibrios into solid tissues and invoked disease. These interactions of haemolymph microbiota with the external and internal environment may thus represent an important component of oyster fitness.

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Language(s): eng - English
 Dates: 2016-05-252015-11-272016-01-27
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1111/1462-2920.13163
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Title: Environmental Microbiology
  Other : Environmental Microbiology and Environmental Microbiology Reports
Source Genre: Journal
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Publ. Info: Oxford, England : Blackwell Science
Pages: - Volume / Issue: 18 (3) Sequence Number: - Start / End Page: 970 - 987 Identifier: ISSN: 1462-2912
CoNE: https://pure.mpg.de/cone/journals/resource/959328105031