| 重金属胁迫对2种地被竹抗氧化酶与脂质过氧化的影响 |
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| 引用本文： | 王兵,曹帮华,蔡春菊.重金属胁迫对2种地被竹抗氧化酶与脂质过氧化的影响[J].世界竹藤通讯,2010,8(4):15-19. |
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| 作者姓名： | 王兵 曹帮华 蔡春菊 |
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| 作者单位： | 山东农业大学,山东,泰安,271014 |
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| 基金项目： | 十一五支撑汁划;项目 |
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| 摘 要： | 采用盆栽法对4种重金属(Cd2+、Pb2+、Cu2+、Zn2+)胁迫下的菲黄竹与菲白竹叶片中的超氧化物歧化酶(SOD)、过氧化物酶(POD)、过氧化氢酶(CAT)活性及脂质过氧化产物(MDA)进行了研究。结果表明,菲黄竹的SOD、POD、及CAT活性随着重金属浓度的增加总体趋势是先增大,之后降低,最后又增大;而菲白竹则是先升高,后降低;过氧化产物(MDA)则于酶活性的变化趋势相反。表明重金属胁迫下,2种地被竹体内的抗氧化酶活性被诱导,且菲白竹比菲黄竹有更强的耐重金属胁迫性。
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| 关 键 词： | 重金属胁迫 抗氧化酶 地被竹 |
Effect of Heavy Metal Stress on Antioxidative Enzymes and Lipid Peroxidation in Two Dwarf Bamboos(Sasa auricoma and Arundinaria fortunei) |
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| Wang Bing,Cao Banghua,Cai Chunju.Effect of Heavy Metal Stress on Antioxidative Enzymes and Lipid Peroxidation in Two Dwarf Bamboos(Sasa auricoma and Arundinaria fortunei)[J].World Bamboo and Rattan,2010,8(4):15-19. |
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| Authors: | Wang Bing Cao Banghua Cai Chunju |
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| Institution: | (Agricultral University of Shandong, Taian 271014) |
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| Abstract: | Superoxide dismutase （SOD） , peroxidase （POD） , catalase （CAT） and product of lipid peroxidation（MDA） in leaves of two dwarf bamboos, Sasa auticoma and Arundinada fortunei under multiple heavy metal stress （Cd, Pb, Cu and Zn） were studied through potting culture method. The results showed that in leaves of heavy- metal-stressed plants the activities of SOD, POD and CAT ascended at first, then declined and ascended at last with stress levels increasing in Sasa auticoma, reaching its maximum at L1. In comparison with the control, the activities of SOD, CAT, and POD ofArundinada fortunei in heavy- metal- stressed condition all ascended at first and then declined, reaching its maximum is at L2, while the peroxidation products （MDA） represented the opposite trend in terms of activity. These results indicate that in heavy-metal- stress, antioxidative activities may play an important role in the two dwarf bamboos, and Arundinana fortunei is more tolerant to heavy metals than Sasa auricoma. |
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| Keywords: | heavy-metal-stress antioxidative enzymes dwarf bamboo |
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