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Modeling the effect of ultraviolet radiation on the photosynthetic potential of Prochlorococcus and Synechococcus cyanobacteria

Dailé Avila Alonso, Jan Baetens (UGent) , Rolando Cardenas and Bernard De Baets (UGent)
(2017) AQUATIC MICROBIAL ECOLOGY. 79(2). p.149-164
Author
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Abstract
We used mathematical models of photosynthesis to quantify the effects of ultraviolet (UV) radiation on the photosynthetic potential of Prochlorococcus and Synechococcus marine cyanobacteria living at 0 degrees and 40 degrees N/S latitude. We show that UV is an environmental stressor for these organisms near the ocean surface, accounting for roughly two-thirds of the potential photo synthetic inhibition. Prochlorococcus showed a higher inhibition and integrated photo synthetic potential throughout the water column than Synechococcus, since the former is more vulnerable to UV damage at the surface and more successful at greater depths compared to the latter. The maximum photosynthetic activity was reached beneath the photoactive zone, largely due to the harmful effects of UVA. UV inhibition varies with latitude, due to variability in repair capacity for Synechococcus, and the existence of more diverse mechanisms of acclimation to irradiance and temperature for Prochlorococcus. The lowest photoinhibition is estimated to occur at 0 degrees latitude, since the interactive effects of high temperature and irradiance have a positive effect on photo acclimation to UV damage.
Keywords
Photosynthetic potential, Photosynthesis model, Prochlorococcus, Synechococcus, Ultraviolet radiation, ASTROPHYSICAL IONIZING-RADIATION, MARINE SYNECHOCOCCUS, SOLAR ULTRAVIOLET, COMPARATIVE GENOMICS, OPTICAL-PROPERTIES, ATLANTIC-OCEAN, PACIFIC-OCEAN, UVB RADIATION, GROWTH-RATES, PICOPHYTOPLANKTON

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MLA
Avila Alonso, Dailé, et al. “Modeling the Effect of Ultraviolet Radiation on the Photosynthetic Potential of Prochlorococcus and Synechococcus Cyanobacteria.” AQUATIC MICROBIAL ECOLOGY, vol. 79, no. 2, 2017, pp. 149–64, doi:10.3354/ame01822.
APA
Avila Alonso, D., Baetens, J., Cardenas, R., & De Baets, B. (2017). Modeling the effect of ultraviolet radiation on the photosynthetic potential of Prochlorococcus and Synechococcus cyanobacteria. AQUATIC MICROBIAL ECOLOGY, 79(2), 149–164. https://doi.org/10.3354/ame01822
Chicago author-date
Avila Alonso, Dailé, Jan Baetens, Rolando Cardenas, and Bernard De Baets. 2017. “Modeling the Effect of Ultraviolet Radiation on the Photosynthetic Potential of Prochlorococcus and Synechococcus Cyanobacteria.” AQUATIC MICROBIAL ECOLOGY 79 (2): 149–64. https://doi.org/10.3354/ame01822.
Chicago author-date (all authors)
Avila Alonso, Dailé, Jan Baetens, Rolando Cardenas, and Bernard De Baets. 2017. “Modeling the Effect of Ultraviolet Radiation on the Photosynthetic Potential of Prochlorococcus and Synechococcus Cyanobacteria.” AQUATIC MICROBIAL ECOLOGY 79 (2): 149–164. doi:10.3354/ame01822.
Vancouver
1.
Avila Alonso D, Baetens J, Cardenas R, De Baets B. Modeling the effect of ultraviolet radiation on the photosynthetic potential of Prochlorococcus and Synechococcus cyanobacteria. AQUATIC MICROBIAL ECOLOGY. 2017;79(2):149–64.
IEEE
[1]
D. Avila Alonso, J. Baetens, R. Cardenas, and B. De Baets, “Modeling the effect of ultraviolet radiation on the photosynthetic potential of Prochlorococcus and Synechococcus cyanobacteria,” AQUATIC MICROBIAL ECOLOGY, vol. 79, no. 2, pp. 149–164, 2017.
@article{8528011,
  abstract     = {{We used mathematical models of photosynthesis to quantify the effects of ultraviolet (UV) radiation on the photosynthetic potential of Prochlorococcus and Synechococcus marine cyanobacteria living at 0 degrees and 40 degrees N/S latitude. We show that UV is an environmental stressor for these organisms near the ocean surface, accounting for roughly two-thirds of the potential photo synthetic inhibition. Prochlorococcus showed a higher inhibition and integrated photo synthetic potential throughout the water column than Synechococcus, since the former is more vulnerable to UV damage at the surface and more successful at greater depths compared to the latter. The maximum photosynthetic activity was reached beneath the photoactive zone, largely due to the harmful effects of UVA. UV inhibition varies with latitude, due to variability in repair capacity for Synechococcus, and the existence of more diverse mechanisms of acclimation to irradiance and temperature for Prochlorococcus. The lowest photoinhibition is estimated to occur at 0 degrees latitude, since the interactive effects of high temperature and irradiance have a positive effect on photo acclimation to UV damage.}},
  author       = {{Avila Alonso, Dailé and Baetens, Jan and Cardenas, Rolando and De Baets, Bernard}},
  issn         = {{0948-3055}},
  journal      = {{AQUATIC MICROBIAL ECOLOGY}},
  keywords     = {{Photosynthetic potential,Photosynthesis model,Prochlorococcus,Synechococcus,Ultraviolet radiation,ASTROPHYSICAL IONIZING-RADIATION,MARINE SYNECHOCOCCUS,SOLAR ULTRAVIOLET,COMPARATIVE GENOMICS,OPTICAL-PROPERTIES,ATLANTIC-OCEAN,PACIFIC-OCEAN,UVB RADIATION,GROWTH-RATES,PICOPHYTOPLANKTON}},
  language     = {{eng}},
  number       = {{2}},
  pages        = {{149--164}},
  title        = {{Modeling the effect of ultraviolet radiation on the photosynthetic potential of Prochlorococcus and Synechococcus cyanobacteria}},
  url          = {{http://doi.org/10.3354/ame01822}},
  volume       = {{79}},
  year         = {{2017}},
}
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