Viral attack exacerbates the susceptibility of a bloom-forming alga to ocean acidification

© 2014 John Wiley & Sons Ltd.

Bibliographische Detailangaben
Veröffentlicht in:Global change biology. - 1999. - 21(2015), 2 vom: 28. Feb., Seite 629-36
1. Verfasser: Chen, Shanwen (VerfasserIn)
Weitere Verfasser: Gao, Kunshan, Beardall, John
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2015
Zugriff auf das übergeordnete Werk:Global change biology
Schlagworte:Journal Article Research Support, Non-U.S. Gov't CO2 Phaeocystis globosa ocean acidification photosynthesis virus
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520 |a Both ocean acidification and viral infection bring about changes in marine phytoplankton physiological activities and community composition. However, little information is available on how the relationship between phytoplankton and viruses may be affected by ocean acidification and what impacts this might have on photosynthesis-driven marine biological CO2 pump. Here, we show that when the harmful bloom alga Phaeocystis globosa is infected with viruses under future ocean conditions, its photosynthetic performance further decreased and cells became more susceptible to stressful light levels, showing enhanced photoinhibition and reduced carbon fixation, up-regulation of mitochondrial respiration and decreased virus burst size. Our results indicate that ocean acidification exacerbates the impacts of viral attack on P. globosa, which implies that, while ocean acidification directly influences marine primary producers, it may also affect them indirectly by altering their relationship with viruses. Therefore, viruses as a biotic stressor need to be invoked when considering the overall impacts of climate change on marine productivity and carbon sequestration 
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650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a CO2 
650 4 |a Phaeocystis globosa 
650 4 |a ocean acidification 
650 4 |a photosynthesis 
650 4 |a virus 
700 1 |a Gao, Kunshan  |e verfasserin  |4 aut 
700 1 |a Beardall, John  |e verfasserin  |4 aut 
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