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Journal of Plant Sciences
  Year: 2010 | Volume: 5 | Issue: 2 | Page No.: 137-145
DOI: 10.3923/jps.2010.137.145
 
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Anti-Oxidation Profile in the Leaves of Maize Inbreds: Elevation in the Activity of Phenylalanine Ammonia Lyase under Drought Stress

Ashraf Gholizadeh

Abstract:
In a basic investigation, the antioxidative responses of two maize inbreds, A-180 and A-619 were studied at their vegetative stage. The total antioxidant ability of the plant leaf materials was determined using Ferric Reducing Antioxidant Power (FRAP) assay. The results revealed that the total antioxidant capacity in the leaves of maize inbreds quickly increases during drought period, while it slowly reverts back to the normal level during recovery. Differential changes in the enzymatic antioxidation through redox enzymes Catalase, Peroxidase and Polyphenol oxidase were observed between both inbreds during drought period. The activity of Pheylalanine Ammonia Lyase (PAL), a key enzyme involved in biosynthesis of isoperonoid antioxidative compounds was found to be increased sharply during stress period in both inbred lines. The overall results suggested that isoperonoid compounds may be more responsible antioxidants in maize drought-challenged antioxidative system.
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How to cite this article:

Ashraf Gholizadeh , 2010. Anti-Oxidation Profile in the Leaves of Maize Inbreds: Elevation in the Activity of Phenylalanine Ammonia Lyase under Drought Stress. Journal of Plant Sciences, 5: 137-145.

DOI: 10.3923/jps.2010.137.145

URL: https://scialert.net/abstract/?doi=jps.2010.137.145

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