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Evaluation of Photosynthetic, Enzymatic Activities and Lipoperoxidation Level in Two Species of Bryophytes Exposed to Sencorate
International Journal of Ecotoxicology and Ecobiology
Volume 2, Issue 2, June 2017, Pages: 87-97
Received: May 14, 2017; Accepted: Jun. 1, 2017; Published: Jul. 21, 2017
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Fadila Khaldi, Laboratory of Sciences and Technology of Water and Environment, Department of Biology, Faculty of Nature and Life Sciences, University of Mohamed Cherif Messaadia, Souk-Ahras, Algeria; Department of Biology, Faculty of Nature and Life Sciences, University of Mohamed Cherif Messaadia, Souk-Ahras, Algeria
Khouloud Boukehili, Department of Biology, Faculty of Nature and Life Sciences, University of Mohamed Cherif Messaadia, Souk-Ahras, Algeria
Nedjoud Grara, Department of Biology, Faculty of Nature and Life Sciences and Earth Sciences and Universe, University 8 May 1945, Guelma, Algeria
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To better understand the behavior of the plants towards xenobiotics, two species of bryophytes (Orthotrichum affine and Scleropodium purum), bioindicators of the region of Souk Ahras (Algeria) which have properties completely different (classification, reproductive cycle...) are treated under hydroponic conditions by 125, 250, 500, 1000 and 1500 mg / L of Sencorate herbicide (Metribuzin) for 3, 7, 14 and 21 days. A measure of some physiological, biochemical and enzymatic parameters characteristic of oxidative stress have allowed us to evaluate not only the effect of Sencorate herbicide but also the behavior of the two species with respect to pollution. Statistical analysis of the results showed significant differences between the treated and control samples for the majority of parameters studied, with lower levels of chlorophyll pigments (a, b, a+b) accompanied by increased levels of proline, total protein and soluble carbohydrates. Depletion of GSH at the beginning of treatment, accompanied by an increase in Malondialdehyde MDA levels were observed with low activity of the enzyme biomarkers Catalase and Ascorbat peroxydase (CAT and APX), which reflects the high tolerance of these species to pollutants.
Orthotrichum affine, Scleropodium purum, Sencorate, Oxidative Stress, CAT, APX, MDA
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Fadila Khaldi, Khouloud Boukehili, Nedjoud Grara, Evaluation of Photosynthetic, Enzymatic Activities and Lipoperoxidation Level in Two Species of Bryophytes Exposed to Sencorate, International Journal of Ecotoxicology and Ecobiology. Vol. 2, No. 2, 2017, pp. 87-97. doi: 10.11648/j.ijee.20170202.15
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This article is an open access article distributed under the Creative Commons Attribution License ( which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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