Document Details

Document Type : Article In Journal 
Document Title :
Investigation of Climate Changes on Metabolic Response of Plants; Interactive Effects of Drought Stress and Excess UV-B
دراسة تأثير التغير المناخي على الاستجابة الأيضية: التأثير المشترك للجفاف وزيادة الأشعة فوق البنفسجية
 
Subject : Enviromental sciences 
Document Language : English 
Abstract : Physiological and biochemical responses of bean (Vicia faba L.) plants to either supplementary ultraviolet (sUV-B) radiation, and/or water (WS) stress were investigated. Both stresses caused significant increases in H2O2 content and lipid peroxidation, indicating oxidative damage. Furthermore, increases in activities of stress markers indicated that sUV-B has a stronger stress effect than WS, and it caused greater membrane damage, as assessed by lipid peroxidation and osmolyte leakage. The activities of ascorbate peroxidase (APX) and superoxide dismutase (SOD) were increased under both stresses when applied alone and in combination, while catalase (CAT) activity decreased under water stress as compared to the control. The combination of drought and UV-B, were more than additive, caused more severe damage than stress factors applied separately. WS induced accumulation of UV-B absorbing secondary pigments (anthocyanin and flavonoids) which is likely to offer some protection from UV-B irradiation. 
ISSN : 2157-7617 
Journal Name : Earth Science & Climatic Change 
Volume : 4 
Issue Number : 1 
Publishing Year : 1434 AH
2013 AD 
Article Type : Article 
Added Date : Tuesday, June 4, 2013 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
ابراهيم حسنHassan, IA ResearcherDoctorateihassan_eg@yahoo.com
جلال باصهيBasahi, JM Researcher  
NS HaibaHaiba, NS Researcher  
MW KadiKadi, MW Researcher  

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