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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 강원대학교 산림과학연구소 Journal of forest and environmental science Journal of forest and environmental science 제26권 제3호
- 발행연도
- 2010.1
- 수록면
- 171 - 179 (9page)
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Effect of chromium (Cr) stress on antioxidant enzyme activities and malondialdehyde (MDA) content were investigated in leaves and roots of mangrove (italic (L.) Druce) seedlings. Cr toxicity effects were also assessed on young seedlings. The seedlings were grown in green house condition for three months in nutrient solution with 0, 0.5, 1, 1.5, 2, 2.5, and 3 mg L-1CrCl3. This study showed that Cr led to the change of antioxidant enzymes such as superoxide dismutase (SOD), peroxidase (POD) and catalase (CAT) and activities at different concentrations. The activity of antioxidant enzymes in leaves of K. candel seedlings indicates that enzymes engaged in antioxidant defense in certain level especially in low concentration of Cr treatments. The activities of SOD and POD were activated by Cr in the root level, while CAT activity was inhibited. CAT activity decreased in response to high concentrations of Cr. In the present study indicated that SOD in root was active in scavenging the superoxide produced by Cr. Both in roots and leaves, an increase in malondialdehyde (MDA) content was observed with increase in metal concentration and exposure periods. Our finding indicated that the high concentration of excessive Cr supply may interfere with several metabolic processes of seedlings, causing toxicity to plants as exhibited by chlorosis, necrosis, photosynthetic impairing and finally, plant death.
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참고문헌 (29)
참고문헌 신청
Sokola, E. V. / 2010 / Dust emission of chromium from chromite ore processing residue disposal areas in the vicinity of Krasnogorskii village in chelyabinsk oblast / Contemporary Problems of Ecology 3:621~630
Tewari, P. / 2002 / Modulation of oxidative stress responsive enzymes by excess cobalt / Plant Science 162:381~388
Vajpayee, P. / 2002 / Chromium-induced physiologic changes in Vallisneria spiralis L. and its role in phytoremediation of tannery effluent / Bul Environ Conta Toxicology 67:246~256
Vitoria, A. P. / 2001 / Antioxidant enzyme responses to cadmium in radish tissues / Phytochemistry 57:701~710
Zhang, F. Q / 2007 / Effect of heavy metal stress on antioxidative enzymes and lipid peroxidation in leaves and roots of two mangrove plant seedlings (Kandelia candel and Bruguiera gymnorrhiza) / Chemosphere 67:44~50
Tewari, P. / 2002 / Modulation of oxidative stress responsive enzymes by excess cobalt / Plant Science 162:381~388
Vajpayee, P. / 2002 / Chromium-induced physiologic changes in Vallisneria spiralis L. and its role in phytoremediation of tannery effluent / Bul Environ Conta Toxicology 67:246~256
Vitoria, A. P. / 2001 / Antioxidant enzyme responses to cadmium in radish tissues / Phytochemistry 57:701~710
Zhang, F. Q / 2007 / Effect of heavy metal stress on antioxidative enzymes and lipid peroxidation in leaves and roots of two mangrove plant seedlings (Kandelia candel and Bruguiera gymnorrhiza) / Chemosphere 67:44~50
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