Effect of Cadmium and Salinity Stresses on Growth and Antioxidant Enzyme Activities of Wheat (Triticum aestivum L.)

2009 ◽  
Vol 82 (6) ◽  
pp. 772-776 ◽  
Author(s):  
Mohammad Shafi ◽  
Jehan Bakht ◽  
Mohammad Jaffar Hassan ◽  
Mohammad Raziuddin ◽  
Guoping Zhang
Keyword(s):  
Triticum Aestivum ◽  
Antioxidant Enzyme ◽  
Enzyme Activities ◽  
Triticum Aestivum L ◽  
Antioxidant Enzyme Activities

scholarly journals Study of silicon effects on antioxidant enzyme activities and osmotic adjustment of wheat under drought stress

2011 ◽  
Vol 47 (No. 1) ◽  
pp. 17-27 ◽  
Author(s):  
S. Tale Ahmad ◽  
R. Haddad
Keyword(s):  
Drought Stress ◽  
Antioxidant Enzyme ◽  
Osmotic Adjustment ◽  
Enzyme Activities ◽  
Soluble Protein ◽  
Membrane Damage ◽  
Triticum Aestivum L ◽  
Growth Stages ◽  
Antioxidant Enzyme Activities ◽  
Randomized Design

The effect of silicon (Si) was investigated on the major antioxidant enzyme activities including superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), peroxidase (POD), relative water content (RWC), chlorophyll and soluble protein contents, proline (Pro) and glycine betaine (GB) accumulation in three different growth stages (2<sup>nd</sup>, 4<sup>th</sup> leaf and tillering stages) of wheat (Triticum aestivum L.) plants under drought stress. The experiment was performed in a completely randomized design for three treatments including control, drought and Si-drought (2mM silicate sodium/kg) with three replications in a greenhouse. The results indicated that Si partially offset the negative impacts of drought stress increasing the tolerance of wheat by rising Pro and GB accumulation and soluble protein content. Compared with the plants treated with drought, applied Si significantly enhanced the activities of SOD, CAT, APX and POD. In contrast, drought stress caused a considerable decrease in RWC, chlorophyll and soluble protein contents. This Si effect was time-dependent and became stronger in the tillering stage. The results of the present experiment coincided with the conclusion that Si alleviates water deficit of wheat by preventing the oxidative membrane damage and may be associated with plant osmotic adjustment.

Thermoregulation, respiration quotient and key antioxidant enzyme activities in the liver and heart of rats under hypergravity stress

2004 ◽  
Vol 10 (1) ◽  
pp. 99-104
Author(s):  
Kh.K. Muradian ◽  
◽  
A.N. Timchenko ◽  
N.A. Utko ◽  
T.A. Badova ◽  
...  
Keyword(s):  
Antioxidant Enzyme ◽  
Enzyme Activities ◽  
Antioxidant Enzyme Activities ◽  
Respiration Quotient
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