Enhancing effects of 24-epibrassinolide and Putrescine on the antioxidant capacity and free radical scavenging activity of Raphanus sativus seedlings under Cu ion stress

• Autorzy: Choudhary S.P. , Bhardwaj R. , Gupta B. D. , Dutt P. , Gupta R. K. , Kanwar M. , Biondi S.
• Języki publikacji: EN

Abstrakty

EN

The present investigation recorded significant restoration of seedling growth (root length, shoot length and fresh weight) upon application of 24-epibrassinolide (EBL) and putrescine (Put) to 7-day-old seedlings of Raphanus sativus L. cv. Pusa chetki grown under copper (Cu) ion stress. EBL and Put with/or without Cu ion treated seedlings showed increased titers of ascorbic acid, total phenols and proline when compared with Cu-stressed seedlings. Differential responses in the activities of guaiacol peroxidase (GPOX) and catalase (CAT) were noted for EBL and Put alone or with/or without Cu ion treatment. Decreased activities of glutathione reductase (GR) and superoxide dismutase (SOD) noted for EBL and Put alone were observed to enhance significantly when applied in combination with Cu ion solution. A remarkable decrease in malondialdehyde contents was observed in seedlings treated with EBL and Put alone and with/or without Cu ion stress. Enhanced free radical scavenging activities were also recorded for seedlings given EBL and Put alone or in combination over Cu ion stressed seedlings. Maximum DPPH activity was observed in seedlings treated with Put and EBL 10⁻⁹ M + Put. Significant enhancements in deoxyribose and reducing power activities were too recorded for Put, EBL and Put + 10⁻⁹ M EBL treatments. Improved seedling growth, antioxidant levels (ascorbic acid, total phenols and proline) and enzymic (GPOX, CAT, SOD and GR) activities and free radical scavenging capacities along with reduced membrane damage in seedlings given EBL and Put with/or without Cu stress suggests significant and positive interactions of EBL and Put in alleviating the Cu ion induced oxidative damage in radish seedlings.

• Wydawca: -
• Czasopismo: Acta Physiologiae Plantarum
• Rocznik: 2011
• Tom: 33
• Numer: 4
• Opis fizyczny: p.1319-1333,fig.,ref.

Twórcy

autor

Choudhary S.P.

• Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, 143005, India

autor

Bhardwaj R.

• Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, 143005, India

autor

Gupta B. D.

• Natural Product Chemistry, Institute of integrative Medicine, Jammu, 180003, India

autor

Dutt P.

• Natural Product Chemistry, Institute of integrative Medicine, Jammu, 180003, India

autor

Gupta R. K.

• Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, 143005, India

autor

Kanwar M.

• Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, 143005, India

autor

Biondi S.

• Dipartimento di Biologia, Universita di Bologna, Via Irnerio 42, 40126, Bologna, Italy

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