@article{
 title = {Stable photosymbiotic relationship under CO₂-induced acidification in the acoel worm Symsagittifera roscoffensis.},
 type = {article},
 year = {2012},
 identifiers = {[object Object]},
 keywords = {Acids,Acids: metabolism,Animals,Carbon Dioxide,Carbon Dioxide: pharmacology,Chlorophyta,Chlorophyta: drug effects,Chlorophyta: physiology,Chlorophyta: radiation effects,Female,Hydrogen-Ion Concentration,Hydrogen-Ion Concentration: drug effects,Life Cycle Stages,Life Cycle Stages: drug effects,Life Cycle Stages: radiation effects,Light,Models, Biological,Platyhelminths,Platyhelminths: drug effects,Platyhelminths: growth & development,Platyhelminths: radiation effects,Seawater,Symbiosis,Symbiosis: drug effects,Symbiosis: radiation effects,Time Factors},
 pages = {e29568},
 volume = {7},
 websites = {http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=3253794&tool=pmcentrez&rendertype=abstract},
 month = {1},
 id = {fad236fc-7859-3cf6-8b8f-950952af6310},
 created = {2012-12-06T09:10:32.000Z},
 accessed = {2012-11-07},
 file_attached = {true},
 profile_id = {0b777e31-8c9d-39dd-97a3-3e054bd99cfe},
 group_id = {764582e8-5773-3a66-8d6b-9b40e4fb5a88},
 last_modified = {2017-03-14T17:27:14.020Z},
 read = {false},
 starred = {false},
 authored = {false},
 confirmed = {true},
 hidden = {false},
 citation_key = {Dupont2012c},
 abstract = {As a consequence of anthropogenic CO₂ emissions, oceans are becoming more acidic, a phenomenon known as ocean acidification. Many marine species predicted to be sensitive to this stressor are photosymbiotic, including corals and foraminifera. However, the direct impact of ocean acidification on the relationship between the photosynthetic and nonphotosynthetic organism remains unclear and is complicated by other physiological processes known to be sensitive to ocean acidification (e.g. calcification and feeding). We have studied the impact of extreme pH decrease/pCO₂ increase on the complete life cycle of the photosymbiotic, non-calcifying and pure autotrophic acoel worm, Symsagittifera roscoffensis. Our results show that this species is resistant to high pCO₂ with no negative or even positive effects on fitness (survival, growth, fertility) and/or photosymbiotic relationship till pCO₂ up to 54 K µatm. Some sub-lethal bleaching is only observed at pCO₂ up to 270 K µatm when seawater is saturated by CO₂. This indicates that photosymbiosis can be resistant to high pCO₂. If such a finding would be confirmed in other photosymbiotic species, we could then hypothesize that negative impact of high pCO₂ observed on other photosymbiotic species such as corals and foraminifera could occur through indirect impacts at other levels (calcification, feeding).},
 bibtype = {article},
 author = {Dupont, Sam and Moya, Aurélie and Bailly, Xavier},
 journal = {PloS one},
 number = {1}
}

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Many marine species predicted to be sensitive to this stressor are photosymbiotic, including corals and foraminifera. However, the direct impact of ocean acidification on the relationship between the photosynthetic and nonphotosynthetic organism remains unclear and is complicated by other physiological processes known to be sensitive to ocean acidification (e.g. calcification and feeding). We have studied the impact of extreme pH decrease/pCO₂ increase on the complete life cycle of the photosymbiotic, non-calcifying and pure autotrophic acoel worm, Symsagittifera roscoffensis. Our results show that this species is resistant to high pCO₂ with no negative or even positive effects on fitness (survival, growth, fertility) and/or photosymbiotic relationship till pCO₂ up to 54 K µatm. Some sub-lethal bleaching is only observed at pCO₂ up to 270 K µatm when seawater is saturated by CO₂. This indicates that photosymbiosis can be resistant to high pCO₂. If such a finding would be confirmed in other photosymbiotic species, we could then hypothesize that negative impact of high pCO₂ observed on other photosymbiotic species such as corals and foraminifera could occur through indirect impacts at other levels (calcification, feeding).","bibtype":"article","author":"Dupont, Sam and Moya, Aurélie and Bailly, Xavier","journal":"PloS one","number":"1","bibtex":"@article{\n title = {Stable photosymbiotic relationship under CO₂-induced acidification in the acoel worm Symsagittifera roscoffensis.},\n type = {article},\n year = {2012},\n identifiers = {[object Object]},\n keywords = {Acids,Acids: metabolism,Animals,Carbon Dioxide,Carbon Dioxide: pharmacology,Chlorophyta,Chlorophyta: drug effects,Chlorophyta: physiology,Chlorophyta: radiation effects,Female,Hydrogen-Ion Concentration,Hydrogen-Ion Concentration: drug effects,Life Cycle Stages,Life Cycle Stages: drug effects,Life Cycle Stages: radiation effects,Light,Models, Biological,Platyhelminths,Platyhelminths: drug effects,Platyhelminths: growth & development,Platyhelminths: radiation effects,Seawater,Symbiosis,Symbiosis: drug effects,Symbiosis: radiation effects,Time Factors},\n pages = {e29568},\n volume = {7},\n websites = {http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=3253794&tool=pmcentrez&rendertype=abstract},\n month = {1},\n id = {fad236fc-7859-3cf6-8b8f-950952af6310},\n created = {2012-12-06T09:10:32.000Z},\n accessed = {2012-11-07},\n file_attached = {true},\n profile_id = {0b777e31-8c9d-39dd-97a3-3e054bd99cfe},\n group_id = {764582e8-5773-3a66-8d6b-9b40e4fb5a88},\n last_modified = {2017-03-14T17:27:14.020Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n citation_key = {Dupont2012c},\n abstract = {As a consequence of anthropogenic CO₂ emissions, oceans are becoming more acidic, a phenomenon known as ocean acidification. 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