Physiological responses of Ankistrodesmus acicularis to diuron
| Autor: | M. A. El-Dib, Azza M. Abdel-Aty |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
chemistry.chemical_classification
biology Ocean Engineering Carbohydrate biology.organism_classification Photosynthesis Pollution Pigment chemistry.chemical_compound chemistry Biochemistry Algae visual_art visual_art.visual_art_medium Ankistrodesmus Adenosine triphosphate Carotenoid Water Science and Technology EC50 |
| Zdroj: | Desalination and Water Treatment. 44:334-339 |
| ISSN: | 1944-3986 1944-3994 |
| Popis: | The impact of diuron on the fresh water alga Ankistrodesmus acicularis was investigated. Parameters studies were the effect on photosynthetic pigments, growth rate, 14C-photoassimilation, carbohydrate, protein, and free amino acids contents, adenosine triphosphate (ATP), uptake of nitrate and diuron by algal cells. Photosynthetic pigments [chlorophylls (a) and (b) contents and total carotenoids] of diuron—treated algae were significantly decreased compared to control. Carbohydrate, protein, and free amino acids contents of treated algae were significantly decreased in response to diuron treatments. The values of EC50, which exert 50% inhibition, were calculated by Probit test which varied with respect to the exposure time. Decreased in 14C-photoassimilation and ATP were in harmony with the decrease of other determined metabolic activities. |
| Databáze: | OpenAIRE |
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