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Abstract of the Article

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Assessment of the use of biomarkers in aquatic plants for the evaluation of environmental quality

Authors:
[ nahid Shahsavaripour ] -
[ abbas Esmailisari ] - Department of Environmental, Natural Resources Faculty, Tarbiat Modares University, Noor, Iran

Abstract:

One of the most serious problems in recent center and damage of aquatic ecosystems because of enter of un treatment wastewater from of human activist to this ecosystems, that Threat aquatic life and organisms in this ecosystems. The use of aquatic plants as bio-indicators constitutes an irreplaceable tool for investigation in ecological research, applied to the conservation of littoral ecosystems. Today, studies in both the laboratory and the field have provided encouraging insights into the capacity of aquatic plants to act as biomonitors of environmental quality, through the use of biomarkers, and these are reviewed here. Photosynthetic activity, secondary metabolites, heat shock proteins, enzymes of detoxication, and oxidative stress biomarkers were measured in the case of various stressors, (e.g. light, thermal, hydric/haline stress, or herbicides, metals, organic contaminants). Most of them seem to be valuable and early markers of the environmental conditions, as demonstrated. Nevertheless, none can be in itself a valuable solution, and only a multi parametric approach, including both ‘physiological’ biomarkers, biomarkers of general stress and more specific biomarkers seems to be appreciable in an ecotoxicological diagnostic.

Keywords:

Aquatic plants; Biomarkers; Oxidative stress; Detoxication