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dc.contributor.author
Jin, Peng  
dc.contributor.author
Gao, Kunshan  
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Villafañe, Virginia Estela  
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Campbell, Douglas A.  
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Helbling, Eduardo Walter  
dc.date.available
2016-04-27T14:23:36Z  
dc.date.issued
2013-08  
dc.identifier.citation
Jin, Peng; Gao, Kunshan; Villafañe, Virginia Estela; Campbell, Douglas A.; Helbling, Eduardo Walter; Ocean Acidification Alters the Photosynthetic Responses of a Coccolithophorid to Fluctuating Ultraviolet and Visible Radiation; American Society of Plant Biologist; Plant Physiology; 162; 4; 8-2013; 2084-2094  
dc.identifier.issn
0032-0889  
dc.identifier.uri
http://hdl.handle.net/11336/5403  
dc.description.abstract
Mixing of seawater subjects phytoplankton to fluctuations in photosynthetically active radiation (400–700 nm) and ultraviolet radiation (UVR; 280–400 nm). These irradiance fluctuations are now superimposed upon ocean acidification and thinning of the upper mixing layer through stratification, which alters mixing regimes. Therefore, we examined the photosynthetic carbon fixation and photochemical performance of a coccolithophore, Gephyrocapsa oceanica, grown under high, future (1,000 μatm) and low, current (390 μatm) CO2 levels, under regimes of fluctuating irradiances with or without UVR. Under both CO2 levels, fluctuating irradiances, as compared with constant irradiance, led to lower nonphotochemical quenching and less UVR-induced inhibition of carbon fixation and photosystem II electron transport. The cells grown under high CO2 showed a lower photosynthetic carbon fixation rate but lower nonphotochemical quenching and less ultraviolet B (280–315 nm)-induced inhibition. Ultraviolet A (315–400 nm) led to less enhancement of the photosynthetic carbon fixation in the high-CO2-grown cells under fluctuating irradiance. Our data suggest that ocean acidification and fast mixing or fluctuation of solar radiation will act synergistically to lower carbon fixation by G. oceanica, although ocean acidification may decrease ultraviolet B-related photochemical inhibition.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
American Society of Plant Biologist  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Uvr  
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Ocean Acidification  
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Biología Marina, Limnología  
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Ciencias Biológicas  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
Ocean Acidification Alters the Photosynthetic Responses of a Coccolithophorid to Fluctuating Ultraviolet and Visible Radiation  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2016-05-06 15:52:43.262787-03  
dc.journal.volume
162  
dc.journal.number
4  
dc.journal.pagination
2084-2094  
dc.journal.pais
Estados Unidos  
dc.journal.ciudad
Rockville  
dc.description.fil
Fil: Jin, Peng. Xiamen University. State Key Laboratory of Marine Environmental Science; China  
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Fil: Gao, Kunshan. Xiamen University. State Key Laboratory of Marine Environmental Science; China  
dc.description.fil
Fil: Villafañe, Virginia Estela. Fundación Playa Unión. Estación de Fotobiología Playa Unión; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina  
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Fil: Campbell, Douglas A.. Mount Allison University. Biology Department; Canadá  
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Fil: Helbling, Eduardo Walter. Fundación Playa Unión. Estación de Fotobiología Playa Unión; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina  
dc.journal.title
Plant Physiology  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1104/pp.113.219543