| 重金属镉、铅胁迫对茭白DNA交联的影响 |
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| 引用本文： | 黄凯丰,江解增.重金属镉、铅胁迫对茭白DNA交联的影响[J].长江蔬菜,2009(14). |
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| 作者姓名： | 黄凯丰 江解增 |
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| 作者单位： | 1. 扬州大学水生蔬菜研究室,江苏扬州,225009;贵州师范大学生命科学学院植物遗传育种研究所
2. 扬州大学水生蔬菜研究室,江苏扬州,225009 |
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| 基金项目： | 国土资源部与江苏省政府合作项目[(2003)019-01];江苏省农业三项工程项目 |
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| 摘 要： | 以单季茭白品种蒋墅芟和双季茭白品种葑红早为试材,对Cd2+、pb2+的单一及其复合胁迫,进行有机肥和无机肥处理,测定了两茭白品种叶片中DNA的提取量以及DNA增色效应的变化.试验结果表明.Cd2+、Pb2+胁迫均能显著降低两茭白品种叶片中DNA提取的量及DNA增色效应的程度.不同胁迫处理方式间以复合胁迫处理下茭白叶片中DNA提取的量显著低于单一胁迫处理,复合胁迫处理时茭白叶片DNA的增色效应下降的幅度显著大于单一胁迫处理.不同肥料处理间则以无机肥处理时DNA提取的量显著低于有机肥处理;而无机肥处理时茭白叶片DNA增色效应下降的幅度显著大于有机肥处理.品种间同比均以蒋墅茭较高.
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| 关 键 词： | 重金属 复合胁迫 DNA提取量 DNA增色效应 |
Effect of Cadmium and Lead Stress on the DNA Cross-linking in Zizania latifolia |
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| HUANG Kaifeng,JIANG Jiezeng.Effect of Cadmium and Lead Stress on the DNA Cross-linking in Zizania latifolia[J].Journal of Changjiang Vegetables,2009(14). |
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| Authors: | HUANG Kaifeng JIANG Jiezeng |
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| Institution: | HUANG Kaifeng1,2,JIANG Jiezeng1 ( 1.Institute of Aquatic Vegetable Research,Yangzhou University,Yangzhou 225009,2.Institute of Plant Genetics , Breeding,School of Life Sciences,Guizhou Normal University ) |
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| Abstract: | To study the contents of dietary fiber (DF) and crude fiber in gall's of Zizania latifolia grown in stress with Cd2+ 100 mg/L, Pb2+ 1 000 mg/L and their combined stress, a single-harvested cultivar Jiangshujiao and a double-harvested cultivar Fenghongzao of Zizania latifolia were cultured in soil with organic fertilizer (OF) and inorganic fertilizer (IF). The results showed that, Cd2+ and Pb2+ stress could reduce the amount of extracted DNA and the hyperchromicity of DNA in the leaves of Zizania latifolia r... |
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| Keywords: | Heavy metal Combined stress Amount of extracted DNA Hyperchromicity of DNA |
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