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Role of salicylic acid in alleviating oxidative damage in rice roots (Oryza sativa) subjected to cadmium stress.
Environ Pollut. 2007 Jun; 147(3):743-9.EP

Abstract

Time-dependent changes in enzymatic and non-enzymatic antioxidants, and lipid peroxidation were investigated in roots of rice (Oryza sativa) grown hydroponically with Cd, with or without pretreatment of salicylic acid (SA). Exposure to 50 microM Cd significantly decreased root growth, and activities of superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD), but increased the concentrations of H(2)O(2), malondialdehyde (MDA), ascorbic acid (AsA), glutathione (GSH) and non-protein thiols (NPT). However, pretreatment with 10 microM SA enhanced the activities of antioxidant enzymes and the concentrations of non-enzymatic antioxidants, but lowered the concentrations of H(2)O(2) and MDA in the Cd-stressed rice compared with the Cd treatment alone. Pretreatment with SA alleviated the Cd-induced inhibition of root growth. The results showed that pretreatment with SA enhanced the antioxidant defense activities in Cd-stressed rice, thus alleviating Cd-induced oxidative damage and enhancing Cd tolerance. The possible mechanism of SA-induced H(2)O(2) signaling in mediating Cd tolerance was discussed.

Authors+Show Affiliations

Department of Plant Nutrition, College of Natural Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing, PR China.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

17084493

Citation

Guo, B, et al. "Role of Salicylic Acid in Alleviating Oxidative Damage in Rice Roots (Oryza Sativa) Subjected to Cadmium Stress." Environmental Pollution (Barking, Essex : 1987), vol. 147, no. 3, 2007, pp. 743-9.
Guo B, Liang YC, Zhu YG, et al. Role of salicylic acid in alleviating oxidative damage in rice roots (Oryza sativa) subjected to cadmium stress. Environ Pollut. 2007;147(3):743-9.
Guo, B., Liang, Y. C., Zhu, Y. G., & Zhao, F. J. (2007). Role of salicylic acid in alleviating oxidative damage in rice roots (Oryza sativa) subjected to cadmium stress. Environmental Pollution (Barking, Essex : 1987), 147(3), 743-9.
Guo B, et al. Role of Salicylic Acid in Alleviating Oxidative Damage in Rice Roots (Oryza Sativa) Subjected to Cadmium Stress. Environ Pollut. 2007;147(3):743-9. PubMed PMID: 17084493.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Role of salicylic acid in alleviating oxidative damage in rice roots (Oryza sativa) subjected to cadmium stress. AU - Guo,B, AU - Liang,Y C, AU - Zhu,Y G, AU - Zhao,F J, Y1 - 2006/11/03/ PY - 2006/06/27/received PY - 2006/09/06/revised PY - 2006/09/07/accepted PY - 2006/11/7/pubmed PY - 2007/7/24/medline PY - 2006/11/7/entrez SP - 743 EP - 9 JF - Environmental pollution (Barking, Essex : 1987) JO - Environ Pollut VL - 147 IS - 3 N2 - Time-dependent changes in enzymatic and non-enzymatic antioxidants, and lipid peroxidation were investigated in roots of rice (Oryza sativa) grown hydroponically with Cd, with or without pretreatment of salicylic acid (SA). Exposure to 50 microM Cd significantly decreased root growth, and activities of superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD), but increased the concentrations of H(2)O(2), malondialdehyde (MDA), ascorbic acid (AsA), glutathione (GSH) and non-protein thiols (NPT). However, pretreatment with 10 microM SA enhanced the activities of antioxidant enzymes and the concentrations of non-enzymatic antioxidants, but lowered the concentrations of H(2)O(2) and MDA in the Cd-stressed rice compared with the Cd treatment alone. Pretreatment with SA alleviated the Cd-induced inhibition of root growth. The results showed that pretreatment with SA enhanced the antioxidant defense activities in Cd-stressed rice, thus alleviating Cd-induced oxidative damage and enhancing Cd tolerance. The possible mechanism of SA-induced H(2)O(2) signaling in mediating Cd tolerance was discussed. SN - 0269-7491 UR - https://www.unboundmedicine.com/medline/citation/17084493/Role_of_salicylic_acid_in_alleviating_oxidative_damage_in_rice_roots__Oryza_sativa__subjected_to_cadmium_stress_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0269-7491(06)00539-2 DB - PRIME DP - Unbound Medicine ER -