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Başlık: Ultraviolet radiation modulates the physiological responses of the calcified rhodophyte Corallina officinalis to elevated CO2
Yazarlar: Hofmann, Laurie C.
Bischof, Kai
Uludağ Üniversitesi/Fen-Edebiyat Fakültesi/Biyoloji Anabilim Dalı.
Yıldız, Gamze
Dere, Şükran
A-9944-2010
35606877400
6701743065
Anahtar kelimeler: Plant sciences
Marine & freshwater biology
Calcification
Chlorophyll fluorescence
Ocean acidification
Photosynthesis
Ultraviolet radiation
Solar uv-radiation
Ocean acidification
Inorganic carbon
Action spectra
Chlorophyll-a
B radiation
Nitrogen-metabolism
Photosynthesis
Growth
Red
Acidification
Bicarbonate
Calcification
Carbon dioxide
Carbonate
Chlorophyll
Oncentration (composition)
Fluorescence
Growth rate
Inorganic carbon
Irradiance
Light quality
Macroalga
pH
Photosynthesis
Physiological response
Radiation exposure
Red alga
Seawater
Ultraviolet radiation
Yayın Tarihi: 22-Şub-2013
Yayıncı: Walter de Gruyter
Atıf: Yıldız, G. vd. (2013). "Ultraviolet radiation modulates the physiological responses of the calcified rhodophyte Corallina officinalis to elevated CO2". Botanica Marina, 56(2), 161-168.
Özet: Ocean acidification reduces the concentration of carbonate ions and increases those of bicarbonate ions in seawater compared with the present oceanic conditions. This altered composition of inorganic carbon species may, by interacting with ultraviolet radiation (UVR), affect the physiology of macroalgal species. However, very little is known about how calcareous algae respond to UVR and ocean acidification. Therefore, we conducted an experiment to determine the effects of UVR and ocean acidification on the calcified rhodophyte Corallina officinalis using CO2-enriched cultures with and without UVR exposure. Low pH increased the relative electron transport rates (rETR) but decreased the CaCO3 content and had a miniscule effect on growth. However, UVA (4.25 W m(-2)) and a moderate level of UVB (0.5 W m(-2)) increased the rETR and growth rates in C. officinalis, and there was a significant interactive effect of pH and UVR on UVR-absorbing compound concentrations. Thus, at low irradiance, pH and UVR interact in a way that affects the multiple physiological responses of C. officinalis differently. In particular, changes in the skeletal content induced by low pH may affect how C. officinalis absorbs and uses light. Therefore, the light quality used in ocean acidification experiments will affect the predictions of how calcified macroalgae will respond to elevated CO2
URI: https://doi.org/10.1515/bot-2012-0216
https://www.degruyter.com/document/doi/10.1515/bot-2012-0216/html
http://hdl.handle.net/11452/29501
ISSN: 0006-8055
1437-4323
Koleksiyonlarda Görünür:Scopus
Web of Science

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