Jasmonic acid induced changes in protein pattern, antioxidative enzyme activities and peroxidase isozymes in peanut seedlings
2006
Kumari, G.J.(Sri Krishnadevaraya Univ., Anatapur (India). Dept. of Botany and Biotechnology) | Reddy, A.M.(Chungbuk National Univ., Cheongju (Korea). Coll. of Pharmacy) | Naik, S.T.(Sri Krishnadevaraya Univ., Anatapur (India). Dept. of Botany and Biotechnology) | Kumar, S.G.(Institute of Plant Genetics and Crop Plant Research, Gatersleben (Germany)) | Prasanthi, J.(Sri Krishnadevaraya Univ., Anatapur (India). Dept. of Botany and Biotechnology) | Sriranganayakulu, G.(Sri Krishnadevaraya Univ., Anatapur (India). Dept. of Botany and Biotechnology) | Reddy, P.C.(Sri Krishnadevaraya Univ., Anatapur (India). Dept. of Botany and Biotechnology) | Chinta Sudhakar(Sri Krishnadevaraya Univ., Anatapur (India). Dept. of Botany and Biotechnology) E-mail:[email protected]
Protein pattern, ammonia content, glutamine synthetase activity, lipid peroxidation, superoxide dismutase, catalase, peroxidase and peroxidase isoforms were studied in the leaves and roots of 7-d-old Arachis hypogaea cv. JL-24 seedlings treated by 25, 100 and 250 microM jasmonic acid (JA). SDS-PAGE protein profile of leaves and roots after JA application showed a significant increase in 18, 21, 30, 45, 47 and 97.4 kDa proteins and significant decrease in 22 and 36 kDa proteins. Pathogenesis related PR-18 was specific in leaves at 250 microM JA. The malondialdehyde concentration significantly increased in leaves and roots treated with JA, indicating membrane damage with JA treatments. The peroxidase isozymic pattern showed two specific isoforms. The activities of SOD and catalase were significantly elevated in JA treated leaves.
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