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铬、镉、铅胁迫对青菜叶片几种生理生化指标的影响
引用本文:任安芝,高玉葆,刘爽.铬、镉、铅胁迫对青菜叶片几种生理生化指标的影响[J].应用与环境生物学报,2000,6(2):112-116.
作者姓名:任安芝  高玉葆  刘爽
作者单位:南开大学生物学系,天津,300071
基金项目:南开大学科技发展基金资助项目
摘    要:研究了溶液培养条件下铬、镉、铅胁迫对青菜叶片细胞膜透性、叶绿素含量和游离脯氨酸含量等的影响,结果表明:随着Cr^6+,Cd^2+,Pb^2+处理时间的延长和处理浓度的增加,青菜叶片细胞膜透性显著增大,叶绿素a/b值逐渐降低,游离脯氨酸含量明显增加,其中游离脯氨酸含量增加的时间比细胞膜透性增大明显超前,而叶绿素a/b植降低的时间在这3种重金属中未见明显的规律性。

关 键 词:重金属污染  青菜        生理生化指标  蔬菜

EFFECTS OF Cr,Cd AND Pb ON FREE PROLINE CONTENT ETC IN LEAVES OF BRASSICA CHINENSIS L.
REN Anzhi,GAO Yubao,LIU Shuang.EFFECTS OF Cr,Cd AND Pb ON FREE PROLINE CONTENT ETC IN LEAVES OF BRASSICA CHINENSIS L.[J].Chinese Journal of Applied and Environmental Biology,2000,6(2):112-116.
Authors:REN Anzhi  GAO Yubao  LIU Shuang
Abstract:The effects of Cr 6 ,Cd 2 and Pb 2 on permeability of cell membrane, chlorophyll content and free proline content in leaves of Brassica chinensis L. were studied. The results showed that the content of free proline and permeability of cell membrane increased while chlorophyll a/b ratio gradually decreased with enhancing treatment concentration and time. The increase in proline content proline took place obviously earlier than that of permeability of cell membrane. Fig 4, Tab 1, Ref 21
Keywords:heavy metal pollution  Cr~(6 )  Cd~( 2 )  Pb~(2 )  Brassica chinensis  L    permeability of cell membrane  free proline
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