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dc.contributor.author
Jin, Peng
dc.contributor.author
Gao, Kunshan
dc.contributor.author
Villafañe, Virginia Estela
dc.contributor.author
Campbell, Douglas A.
dc.contributor.author
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
dc.subject
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
dc.description.fil
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
dc.description.fil
Fil: Campbell, Douglas A.. Mount Allison University. Biology Department; Canadá
dc.description.fil
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
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