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IJSTR >> Volume 4 - Issue 2, February 2015 Edition

International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616

Effect Of Nacl Salt Stress On Antioxidant Enzymes Of Isabgol (Plantago Ovata Forsk.) Genotypes

[Full Text]



Suraj Kala



Key words: Plantago ovata, Superoxide dismutase, Catalase, Peroxidase, NaCl.



Abstract: Activity of antioxidant enzymes such as superoxide dismutase, catalase and peroxidase in leaves of isabgol (Plantago ovata Forsk.) genotypes viz. GI-2, HI-96, PB-80 and HI-5 were studied under salt stress at different EC levels viz. control (without salt), 5 and 10 dSm-1 of nutrient supplemented NaCl salt solutions in sand filled polythene bags. Salt stress caused significant increase in the activity of superoxide dismutase, catalase and peroxidase. Maximum increase in activity of superoxide dismutase and catalase enzymes was found in the genotype GI-2 and minimum increase in the genotype PB-80. Peroxidase activity was highest in the genotype HI-96 and lowest in the genotype PB-80 under salt stress indicating genotype GI-2 and HI-96 having more capacity of scavenging reactive oxygen species produced due to salt stress and were relatively salt tolerant while genotype PB-80 was salt sensitive among the genotypes studied.



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