Friend or Foe: Predicting the Pathogenicity of Opportunistic Vibrio sp. Isolated from the Pacific Oyster (Crassostrea gigas)
Many epizootics in marine wildlife have been associated with increasing temperatures. Those pathogen outbreaks can cause severe decline in host populations which are experiencing strong selection by such infectious diseases. A relevant disease evoking global concern is the “Summer Mortality Syndrome...
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ftawi:oai:epic.awi.de:25589 2023-05-15T15:58:15+02:00 Friend or Foe: Predicting the Pathogenicity of Opportunistic Vibrio sp. Isolated from the Pacific Oyster (Crassostrea gigas) Wendling, Carolin Wegner, Mathias 2011-11-10 https://epic.awi.de/id/eprint/25589/ https://hdl.handle.net/10013/epic.38911 unknown Wendling, C. and Wegner, M. orcid:0000-0002-2410-8898 (2011) Friend or Foe: Predicting the Pathogenicity of Opportunistic Vibrio sp. Isolated from the Pacific Oyster (Crassostrea gigas) , Evolution at the Sea, Puan Klent, Sylt, 7 November 2011 - 7 November 2011 . hdl:10013/epic.38911 EPIC3Evolution at the Sea, Puan Klent, Sylt, 2011-11-07-2011-11-07 Conference notRev 2011 ftawi 2021-12-24T15:35:27Z Many epizootics in marine wildlife have been associated with increasing temperatures. Those pathogen outbreaks can cause severe decline in host populations which are experiencing strong selection by such infectious diseases. A relevant disease evoking global concern is the “Summer Mortality Syndrome (SMS)” leading to mass mortalities in Pacific oysters (Crassostrea gigas), which has been associated to high temperatures in conjunction with pathogenic bacteria, notably of the genus Vibrio. Within the European Wadden sea SMS has only been observed for southern populations. Since northern and southern populations are genetically distinct the question arises, whether a northward expansion of SMS is facilitated by temperature directly, or whether genetic differences between northern and southern populations might potentially constrain a further expansion. Until now the ecological and evolutionary implication of emerging marine diseases such as SMS still remains unknown. However, to completely understand an infectious disease the isolation, identification and characterization of respective causative agents is fundamental. We isolated various Vibrio sp. strains from Pacific oysters. by sequencing of 16srRNA and constructed a phyolgenetic tree. Based on 16srRNA phylogeny we singled out suitable candidates for controlled infection experiments on adult oysters to estimate taxonomic pathogen diversity under elevated summer temperatures. With this approach we are now able to derive predictions on the pathogenicity of opportunistic Vibrio sp. from their phylogentic position relative to known virulent strains. This comprehensive study on diversity and pathogenicity of Vibrio strains forms the basis for further experiments investigating differences in response to a selective force, such as SMS between southern and northern populations of the Pacific oyster within the European Waddensea. Conference Object Crassostrea gigas Pacific oyster Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Pacific |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
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description |
Many epizootics in marine wildlife have been associated with increasing temperatures. Those pathogen outbreaks can cause severe decline in host populations which are experiencing strong selection by such infectious diseases. A relevant disease evoking global concern is the “Summer Mortality Syndrome (SMS)” leading to mass mortalities in Pacific oysters (Crassostrea gigas), which has been associated to high temperatures in conjunction with pathogenic bacteria, notably of the genus Vibrio. Within the European Wadden sea SMS has only been observed for southern populations. Since northern and southern populations are genetically distinct the question arises, whether a northward expansion of SMS is facilitated by temperature directly, or whether genetic differences between northern and southern populations might potentially constrain a further expansion. Until now the ecological and evolutionary implication of emerging marine diseases such as SMS still remains unknown. However, to completely understand an infectious disease the isolation, identification and characterization of respective causative agents is fundamental. We isolated various Vibrio sp. strains from Pacific oysters. by sequencing of 16srRNA and constructed a phyolgenetic tree. Based on 16srRNA phylogeny we singled out suitable candidates for controlled infection experiments on adult oysters to estimate taxonomic pathogen diversity under elevated summer temperatures. With this approach we are now able to derive predictions on the pathogenicity of opportunistic Vibrio sp. from their phylogentic position relative to known virulent strains. This comprehensive study on diversity and pathogenicity of Vibrio strains forms the basis for further experiments investigating differences in response to a selective force, such as SMS between southern and northern populations of the Pacific oyster within the European Waddensea. |
format |
Conference Object |
author |
Wendling, Carolin Wegner, Mathias |
spellingShingle |
Wendling, Carolin Wegner, Mathias Friend or Foe: Predicting the Pathogenicity of Opportunistic Vibrio sp. Isolated from the Pacific Oyster (Crassostrea gigas) |
author_facet |
Wendling, Carolin Wegner, Mathias |
author_sort |
Wendling, Carolin |
title |
Friend or Foe: Predicting the Pathogenicity of Opportunistic Vibrio sp. Isolated from the Pacific Oyster (Crassostrea gigas) |
title_short |
Friend or Foe: Predicting the Pathogenicity of Opportunistic Vibrio sp. Isolated from the Pacific Oyster (Crassostrea gigas) |
title_full |
Friend or Foe: Predicting the Pathogenicity of Opportunistic Vibrio sp. Isolated from the Pacific Oyster (Crassostrea gigas) |
title_fullStr |
Friend or Foe: Predicting the Pathogenicity of Opportunistic Vibrio sp. Isolated from the Pacific Oyster (Crassostrea gigas) |
title_full_unstemmed |
Friend or Foe: Predicting the Pathogenicity of Opportunistic Vibrio sp. Isolated from the Pacific Oyster (Crassostrea gigas) |
title_sort |
friend or foe: predicting the pathogenicity of opportunistic vibrio sp. isolated from the pacific oyster (crassostrea gigas) |
publishDate |
2011 |
url |
https://epic.awi.de/id/eprint/25589/ https://hdl.handle.net/10013/epic.38911 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Crassostrea gigas Pacific oyster |
genre_facet |
Crassostrea gigas Pacific oyster |
op_source |
EPIC3Evolution at the Sea, Puan Klent, Sylt, 2011-11-07-2011-11-07 |
op_relation |
Wendling, C. and Wegner, M. orcid:0000-0002-2410-8898 (2011) Friend or Foe: Predicting the Pathogenicity of Opportunistic Vibrio sp. Isolated from the Pacific Oyster (Crassostrea gigas) , Evolution at the Sea, Puan Klent, Sylt, 7 November 2011 - 7 November 2011 . hdl:10013/epic.38911 |
_version_ |
1766393980985016320 |