| 铅胁迫对小青菜生理指标的影响 |
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| 引用本文： | 陈爱辉,封功能,刘殿锋,马夏彬.铅胁迫对小青菜生理指标的影响[J].湖北农业科学,2009,48(8). |
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| 作者姓名： | 陈爱辉 封功能 刘殿锋 马夏彬 |
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| 作者单位： | 1. 盐城工学院化学与生物工程学院,江苏,盐城,224003
2. 濮阳职业技术学院,河南,濮阳,457000 |
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| 基金项目： | 江苏省滩涂生物资源与环境保护重点建设实验室开放课题，盐城工学院基金项目 |
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| 摘 要： | 采用盆栽模拟试验方法研究了小青菜(Brassica chinensis)对铅胁迫的生理响应.结果表明,在低浓度铅作用下,小青菜的叶片叶绿素含量、可溶性蛋白含量无显著变化,随着铅浓度的升高,叶绿素含量、可溶性蛋白含量显著降低:MDA含量随铅浓度的升高呈先降低后升高的趋势;POD活性则随着铅浓度的升高而降低.综合各项生理指标,小青菜耐受铅污染的临界点为600mg·kg-1,在低于该浓度的铅污染土壤中,小青菜体内的代谢过程能够顺利进行,可维持正常生长.
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| 关 键 词： | 小青菜 铅胁迫 重金属污染 |
Effects of Pb Stress on the Physiological Indices of Brassica chinensis |
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| CHEN Ai-hui,FENG Gong-neng,LIU Dian-feng,MA Xia-bin.Effects of Pb Stress on the Physiological Indices of Brassica chinensis[J].Hubei Agricultural Sciences,2009,48(8). |
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| Authors: | CHEN Ai-hui FENG Gong-neng LIU Dian-feng MA Xia-bin |
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| Institution: | 1. College of Chemical and Biological Engineering;Yancheng Institute of Technology;Yancheng 224003;Jiangsu;China;2. Puyang Vocational & Technical Institute;Puyang 457000;Henan;China |
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| Abstract: | Series of pot experiments were conducted to study effects of lead stress on the physiological characteristics of potted Brassica chinensis. The results showed that the synthesis of chlorophyll and soluble protein were first not affected markedly and then inhibited significantly,the content of MDA decreased first and then increased with the increasing of Pb concentration. But POD activities were decreasing with the increasing of Pb concentration. The physiological indices indicated that the critical concentr... |
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| Keywords: | Brassica chinensis lead stress heavy metal pollution |
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