Manuscript Number : IJSRST16213
Impact of an atmosphere rich in sulfur dioxide on a foliose lichen species Flavoparmelia caperata (L) Hale from the El Kala National Park (northeast Algerian)
Authors(4) :-Monia Serradj Ali Ahmed, Zineeddine Boumedris, Ali Tahar, Mohamed Reda Djebar Lichens are often exposed in their natural habitat to anthropogenic pollutants, including those from vehicles and industrial and agricultural activities. In the absence of outer protective barrier, such that the waxy cuticle has evolved in vascular plants. The thallus of these organisms is sensitive to the penetration of suspended substances, some of which are essential for the functioning of cells, while others can be toxic. Accordingly, lichens can disappear within and around urban and industrial areas. Lichens can be used for early detection of stress caused by air pollution.
Monia Serradj Ali Ahmed Lichen, Biomarkers, SO2, Oxidative Stress, Pollution. Publication Details
Published in : Volume 2 | Issue 1 | January-February 2016 Article Preview
To better characterize the impact of SO2 pollution in lichens. We began our study by highlighting the accumulation of sulfur dioxide by the thallus of foliose species Flavoparmelia caperata (L) Hale using the immersion method designed by Deruelle and Lallemand, which involves immersing lichens in SO2 -saturated atmosphere at different concentrations . Thereafter, we performed morphological observations and measurements of some physiological parameters (chlorophyll, total protein and as biomarkers of oxidative stress such as antioxidant enzymes system).
Our results indicate physiological and biochemical morphological alterations of lichens exposed to SO2, including
• discolorations and necrosis weaknesses frond splitting them into small clusters
• Disturbances contents chlorophylls (a, b and (a + b) )
• Activation detoxification systems ( APX , CAT and GPX ) ;
• Increased levels of proteins.
Biology Department, Badji Mokhtar University, Laboratory of Plant Biology and Environment, Annaba, Algeria
Zineeddine Boumedris
Biology Department, Badji Mokhtar University, Laboratory of Plant Biology and Environment, Annaba, Algeria
Ali Tahar
Biology Department, Badji Mokhtar University, Laboratory of Plant Biology and Environment, Annaba, Algeria
Mohamed Reda Djebar
Biology Department, Badji Mokhtar University, Laboratory of Plant Biology and Environment, Annaba, Algeria
Date of Publication : 2016-02-25
License: This work is licensed under a Creative Commons Attribution 4.0 International License.
Page(s) : 21-27
Manuscript Number : IJSRST16213
Publisher : Technoscience Academy
Journal URL : https://ijsrst.com/IJSRST16213
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