Impacts of Different Water Pollution Sources on Antioxidant Defense Ability in Three Aquatic Macrophytes in Assiut Province, Egypt
Journal Title: Журнал ÑтреÑÑ-физиологии и биохимии - Year 2014, Vol 10, Issue 3
Abstract
The present study was undertaken to evaluate the impacts of surface water pollution with wastes coming from sewage effluents (Site 2), agricultural runoff (Site 4) and oils and detergents factory (Site 3) on the stability of leaf membrane (measured as injury %), hydrogen peroxide (H[sub]2[/sub]O[sub]2[/sub]), ascorbic acid (Asc A), lipid peroxidation, chlorophyll (Chl) content, soluble sugars (SS), soluble proteins (SP) and total free amino acids (TAA) of Cyperus alopeucroides, Persicaria salicifolia and Echinochloa stagnina. Concentration of H[sub]2[/sub]O[sub]2[/sub], MDA and TAA were higher in the three plants collected from polluted sites as compared with those of plants grown in control Nile site (Site1). The opposite was true for Asc A, SS and SP where their concentrations reduced significantly in response to water pollution. Leaf membrane was more damaged (high injury %) in plants exposed to wastes from different sources than in plants growing at control site. The results of this study indicated that water pollution reduced the oxidative defense abilities in the three plants through reduction of Asc A activities, enhancement of H[sub]2[/sub]O[sub]2[/sub] production and increasing MDA accumulation. In addition it impaired the metabolic activity through lowering the SS and SP contents and enhancement of TAA accumulation and increase membrane injury. The over production of hydrogen peroxide by the studied aquatic plants under water pollution could be used as an oxygen source needed to oxidize the more resistant organic and inorganic pollutants and used for pollution control and municipal and industrial wastewater treatment.
Authors and Affiliations
Mohamed Gadallah, Suzan Sayed
Keywords
Related Articles
- EP ID EP131847
- DOI -
- Views 115
- Downloads 0
Влияние повышенной температуры окружающей среды на активность ферментов антиоксидантной системы и анаэробного гликолиза у эндемичных байкальских видов амфипод Eulimnogammarus marituji, E. maackii и Gmelinoides fasciatus
Целью настоящей работы являлась оценка влияния повышенной температуры окружающей среды на активность ферментов антиоксидантной системы и анаэробного гликолиза у эндемичных байкальских видов амфипод Eulimnogammаrus marit...
Overexpression Analysis of emv2 gene coding for Late Embryogenesis<br /> Abundant Protein from Vigna radiata (Wilczek)
Late embryogenesis abundant (LEA) proteins are speculated to protect against water stress deficit in plants. An over expression system for mungbean late embryogenesis abundant protein, emv2 was constructed in a pET29a ve...
Winter damage of frost semi-resistant half-cultured apple-trees varieties in sounthern predbaikal’ye
The study was focused on the varieties of macrocarpous semi-culture apple-trees, which are promising for growing in Southern Predbaikal’ye. Most of varieties studied were shown to be characterized by low winter-resistanc...
Growth and Nitrogen Fixation in Silicon and/or Potassium Fed Chickpeas Grown under Drought and Well Watered Conditions
A pot experiment was conducted to study the effects of silicon (Si) and/or potassium (K) on plant growth, nitrogen uptake and N2-fixation in water stressed (FC1) and well watered (FC2) chickpea plants using [sup]15[/sup]...
Protection Against Fusarium Head Blight: Important Defense Mechanisms Studied in Three Regenerated Egyptian Wheat Cultivars
[i]Fusarium graminearum[/i] is one of the major global pathogens of cereals and is considered the main causal agent of Fusarium head blight (FHB) disease in wheat.[i] F. graminearum[/i] leads to severe losses in grain yi...