scholarly journals Antioxidative Defense System, Pigment Composition, and Photosynthetic Efficiency in Two Wheat Cultivars Subjected to Drought

1999 ◽  
Vol 119 (3) ◽  
pp. 1091-1100 ◽  
Author(s):  
Barbara Loggini ◽  
Andrea Scartazza ◽  
Enrico Brugnoli ◽  
Flavia Navari-Izzo
Keyword(s):  
Photosynthetic Efficiency ◽  
Antioxidative Defense ◽  
Wheat Cultivars ◽  
Pigment Composition ◽  
Defense System ◽  
Antioxidative Defense System

scholarly journals Assessment of Ozone Sensitivity in Three Wheat Cultivars Using Ethylenediurea

Plants ◽  
2019 ◽  
Vol 8 (4) ◽  
pp. 80 ◽  
Author(s):  
Adeeb Fatima ◽  
Aditya Singh ◽  
Arideep Mukherjee ◽  
Tsetan Dolker ◽  
Madhoolika Agrawal ◽  
...  
Keyword(s):  
Biochemical Parameter ◽  
Triticum Aestivum L ◽  
Total Biomass ◽  
Enzymatic Antioxidants ◽  
Antioxidative Defense ◽  
Wheat Cultivars ◽  
Defense System ◽  
Efficient Technology ◽  
Antioxidative Defense System ◽  
Ozone Sensitivity

Three wheat (Triticum aestivum L.) cultivars [HD 2987 (ozone (O3) sensitive), PBW 502 (intermediately sensitive) and Kharchiya 65 (O3 tolerant)] with known sensitivity to O3 were re-evaluated using ethylenediurea (EDU; 400 ppm) to ascertain the use of EDU in determiningO3 sensitivity under highly O3-polluted tropical environments. EDU treatment helped in improving the growth, biomass, photosynthetic pigments and the antioxidative defense system of all the wheat cultivars. Under EDU treatment, PBW 502 retained more biomass, while HD 2987 showed better performance and ultimately the greatest increment in yield. Cultivar Kharchiya 65 also showed a positive response to EDU as manifested with an increase in pigment contents, total biomass and enzymatic antioxidants; however, this increment was comparatively lower compared to the other two cultivars. The results indicated that EDU did not have many physiological effects on cultivars but helped in counteracting O3 primarily by scavenging reactive oxygen species and enhancing the antioxidative defense system where superoxide dismutase emerged as the major responsive biochemical parameter against ambient O3. The observed results clearly indicated that differential O3 sensitivity in three wheat cultivars established by the previous study is in accordance with the present study using EDU as a sensitivity tool, which is an easy and efficient technology in comparison to chamber and Free-Air Carbon dioxide Enrichment (FACE) experiments although its mechanistic understanding needs to be further validated.

The Role of the Antioxidative Defense System in Papulopustular Acne

2001 ◽  
Vol 28 (3) ◽  
pp. 123-127 ◽  
Author(s):  
Pinar Y. Basak ◽  
Fatih Gultekin ◽  
Ibrahim Kilinc
Keyword(s):  
Antioxidative Defense ◽  
Defense System ◽  
Antioxidative Defense System
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