Abstract
In the present work, the long-term effect (14 days) of copper on the levels of intracellular and total copper accumulation, growth, assimilation pigment composition, chlorophyll a fluorescence, soluble protein content and oxidative status (production of hydrogen peroxide and superoxide) in two algal species (Scenedesmus quadricauda and Trebouxia erici) was assessed. Scenedesmus quadricauda is a free-living alga while Trebouxia erici is the photobiont of a lichen. The presence of copper negatively affected growth, assimilation pigments, chlorophyll a fluorescence, soluble protein content and oxidative status in both the algae. However, Scenedesmus was much more sensitive compared to Trebouxia.
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Abbreviations
- Chl:
-
Chlorophyll.
- Fw:
-
Fresh weight
- Perox:
-
Hydrogen peroxide
- Prot:
-
Soluble proteins
- Superox:
-
Superoxide
- Tot Car:
-
Total carotenoids
- ROS:
-
Reactive oxygen species
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Acknowledgments
This work was financially supported by Slovak Grant Agency (VEGA 1/0521/10). Thanks are expressed to Prof. Dianne Fahselt (UWO, Canada) for comments on the manuscript.
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Piovár, J., Stavrou, E., Kaduková, J. et al. Influence of long-term exposure to copper on the lichen photobiont Trebouxia erici and the free-living algae Scenedesmus quadricauda . Plant Growth Regul 63, 81–88 (2011). https://doi.org/10.1007/s10725-010-9515-4
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DOI: https://doi.org/10.1007/s10725-010-9515-4