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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2017.8
- 수록면
- 203 - 214 (12page)
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Environmental toxicity due to cadmium (Cd) pollution in croplands causes critical problems worldwide. Rice (Oryza sativa L.) is an important crop in Asia, including South Korea, and numerous studies have evaluated the relationship between Cd and antioxidants to alleviate Cd uptake from the soil into plants. However, information about the relationship between phosphorus (P) and antioxidants in rice seedlings is still limited with regard to Cd phytotoxicity. We therefore investigated the physiological responses of rice (Oryza sativa L. cv ‘Dongjin’) seedlings to Cd toxicity and the effect of P application on reactive oxygen species (ROS) and antioxidant changes. The exposure of rice seedlings to 30 μM Cd inhibited plant growth; increased the contents of superoxide, hydrogen peroxide, and malondialdehyde; and induced Cd uptake by the roots and leaves. Application of P to Cd-exposed seedlings decreased Cd-induced oxidative stress by enhancing the capacity of ascorbate (AsA) production and ROS-scavenging, and decreased Cd transfer from the roots to the leaves. These results suggest that P application alleviated Cd-induced growth inhibition and oxidative damage by restricting Cd translocation from the roots to the leaves and maintaining sufficient levels of AsA.
목차
ABSTRACT
Introduction
Materials and Methods
Results and Discussion
Conclusions
References
참고문헌 (45)
참고문헌 신청
Arshad, M., S. Ali, A. Noman, Q. Ali, M. Rizwan, M. Farid, and M.K. Irshad. 2016. Phosphorus amendment decreased cadmium (Cd) uptake and ameliorates chlorophyll contents, gas exchange attributes, antioxidants, and mineral nutrients in wheat (Triticum aestivum L.) under Cd stress. Arch. Agron. Soil Sci. 62:533-546.
Barcelo, J., M.D. Vazquez, and C. Poschenrieder. 1988. Structural and ultrastructural disorders in cadmium-treated bush bean plants (Phaseolus vulgaris L.). New Phytol. 108:37-49.
Brackhage, C., J.H. Huang, J. Schaller, E.J. Elzinga, and E.G. Dudel. 2014. Readily available phosphorous and nitrogen counteract for arsenic uptake and distribution in wheat (Triticum aestivum L.). Sci. Rep. 4:4944.
Buege, J.A. and S.D. Aust. 1978. Microsomal lipid peroxidation. Methods Enzymol. 52:302-310.
Elstner, E.F. and A. Heupel. 1976. Inhibition of nitrite formation from hydroxylammonium-chloride: a simple assay for superoxide dismutase. Anal. Biochem. 70:616-620.
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UCI(KEPA) : I410-ECN-0101-2018-523-001256670