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Please use this identifier to cite or link to this item: http://hdl.handle.net/1834/1242

Title: Effects of copper on photosynthesis activity and chlorophyll-a content of chaetoceros radicans schutt
Authors: Taha, O.E.
El-Sarraf, W.M.
ASFA Terms: Chlorophylls
Copper
Photosynthesis
Issue Date: Apr-1995
Publisher: High Institute of Public Health
Citation: Bulletin of High Institute of Public Health, 25 (2), p. 439-446
Abstract: Chaetoceros radicans was selected to test the effect of copper concentrations of 0.001, 0.005, 0.01, 0.05, 0.1 and 0.5 ppm for 6 days on the photosynthetic activity and chlorophyll-a content under laboratory conditions. The photosynthetic activity decreased with time of exposure and copper concentration. The control photosynthetic activity reached a maximum value at 120 hours and chlorophyll-a at 72 hours. Chaetoceros radicans cultures treated by copper showed a slight decrease in its photosynthetic activity and chlorophyll-a at levels 0.001 and 0.005 ppm, while they rapidly decreased at higher copper concentrations.
URI: http://hdl.handle.net/1834/1242
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