February 2012
Phenoloxidases activity in root system and their importance in the phytoremediation of organic contaminants
Plants have evolved complex defense mechanisms in response to xenobiotics, and gain the concept of the ‘‘green liver” by analogy with the detoxication role of the liver in animal organisms and present other detoxication mechanisms; particularly the xenobiotic oxidation by plant roots. This review focused on two kinds of oxido-reductase enzymes: peroxidases and laccases, regarding their...
February 2012
Characterization of the aquifer system in the northern Sinai peninsula, Egypt
Northern Sinai has received great attention with respect to future agricultural development, especially after initiation of El Salam canal, as a source of irrigation. The research aim is to highlight on the nature and potentiality of the Quaternary aquifer in the northern Sinai. To achieve this target, a 256 groundwater samples were collected and analyzed chemically with respect to major ions, SiO2, B3+,...
February 2012
Haematological, biological and behavioural changes in Oreochromis niloticus (Linne 1757) juveniles exposed to Paraquat herbicide
The Nile Tilapia, Oreochromis niloticus was exposed to Paraquat for 24 h so as to monitor its effects on the fish’s haematology, and general behaviours. The haematological parameters estimated include haemoglobin, mean cell haemoglobin, mean cell haemoglobin concentration, packed cell volume, mean cell volume, erythrocyte sedimentation rate and white and red blood cell counts. The...
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