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Antioxidant enzymes changes in response to drought stress in ten cultivars of oilseed rape (Brassica napus L.)

Author

Listed:
  • Tayebeh ABEDI

    (Department of Crop Production and Plant Breeding, College of Agriculture, Shiraz University, Shiraz, Iran)

  • Hassan PAKNIYAT

    (Department of Crop Production and Plant Breeding, College of Agriculture, Shiraz University, Shiraz, Iran)

Abstract

The study was undertaken to identify the responses of antioxidant enzyme activities and their isozyme patterns in seedlings of 10 oilseed rape (Brassica napus L.) cultivars under drought stress conditions. Plants were grown under three irrigation regimes (FC; field capacity, 60% FC and 30% FC) in a greenhouse. Drought stress preferentially enhanced the activities of superoxide dismutase (SOD) and guaiacol peroxidase (POD) whereas it decreased catalase (CAT) activity. Licord with the highest level of enzyme activity under both optimum and limited irrigation regimes is reported as the most tolerant cultivar. Whereas Hyola 308 and Okapy, having the lowest enzymes activities, are mentioned as cultivars sensitive to drought stress. The native polyacrylamide gel electrophoresis (PAGE) analysis detected eight SOD isozymes. Oilseed rape leaves contained three isoforms of Mn-SOD and five isoforms of Cu/Zn-SOD. The expression of Mn-SOD was preferentially enhanced by drought stress. Five POD isoforms were detected in oilseed rape leaves. The intensities of POD-4 and -5 were enhanced under drought stress. According to the results, the appearance of new isozyme bands under drought stress conditions may be used as a biochemical marker to differentiate drought tolerant cultivars under drought stress.

Suggested Citation

  • Tayebeh ABEDI & Hassan PAKNIYAT, 2010. "Antioxidant enzymes changes in response to drought stress in ten cultivars of oilseed rape (Brassica napus L.)," Czech Journal of Genetics and Plant Breeding, Czech Academy of Agricultural Sciences, vol. 46(1), pages 27-34.
    • Handle: RePEc:caa:jnlcjg:v:46:y:2010:i:1:id:67-2009-cjgpb
    DOI: 10.17221/67/2009-CJGPB
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    Citations

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    Cited by:

    1. Hojjat Hasheminasab & Mohammad Taghi Assad & Ali Aliakbari & Seyyed Rasoul Sahhafi, 2012. "Influence of Drought Stress on Oxidative Damage and Antioxidant Defense Systems in Tolerant and Susceptible Wheat Genotypes," Journal of Agricultural Science, Canadian Center of Science and Education, vol. 4(8), pages 1-20, June.
    2. Theivasigamani Parthasarathi & Koothan Vanitha & Sendass Mohandass & Eli Vered & Varadaraju Meenakshi & Dharmalingam Selvakumar & Arumugam Surendran & Naftali Lazarovitch, 2016. "Effect of Drip Irrigation on Growth, Physiology, Yield and Water Use of Rice," Journal of Agricultural Science, Canadian Center of Science and Education, vol. 9(1), pages 154-154, December.
    3. Mohammad Amiri & Amir Hossein Shirani Rad & Alireza Valadabadi & Saeed Sayfzadeh & Hamidreza Zakerin, 2020. "Response of rapeseed fatty acid composition to foliar application of humic acid under different plant densities," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 66(6), pages 303-308.
    4. Kaio Martins & Paulo de Brito & Julyanne de Arruda & Francisco Nunes Júnior & Roberto Pontes Filho & Franklin Gondim, 2018. "Plant Growth, Antioxidative Enzymes, Lipid Peroxidation and Organic Solute Contents in Mulungu Seedlings (Erythrina velutina) Under Different Field Capacities," Journal of Agricultural Science, Canadian Center of Science and Education, vol. 10(7), pages 443-443, June.
    5. M. S. EL-Sharkawy & T. R. EL-Beshbeshy & S. M. Hassan & E. Mahmoud & N. I. Abdelkader & R. M. Al-Shal & A. Missaoui, 2017. "Alleviating Salt Stress in Barley by Use of Plant Growth Stimulants and Potassium Sulfate," Journal of Agricultural Science, Canadian Center of Science and Education, vol. 9(4), pages 136-136, March.

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