| Cu2+和Zn2+胁迫对玉米幼苗生理特性的影响 |
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| 引用本文： | 黄丽华,李充璧.Cu2+和Zn2+胁迫对玉米幼苗生理特性的影响[J].广东农业科学,2013,40(15):16-18. |
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| 作者姓名： | 黄丽华 李充璧 |
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| 作者单位： | 肇庆学院生命科学学院,广东肇庆,526061 |
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| 摘 要： | 研究在Cu2+和Zn2+的胁迫下,玉米幼苗一些生理指标的变化,结果表明:在Cu2+和Zn2+的胁迫下,玉米幼苗生长发育受到抑制,较高浓度的Cu2+和Zn2+显示较高的毒性.在Cu2+和Zn2+的处理下,玉米幼苗的叶绿素、可溶性蛋白质、过氧化物酶(POD)、脯氨酸的含量下降,叶片中铜、锌、丙二醛(MDA)的含量增加.同时,Cu2+和Zn2+浓度的高低对玉米的生理特性的影响不同,且玉米幼苗对Cu2+的胁迫更为敏感.
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| 关 键 词： | 玉米 铜胁迫 锌胁迫 生理特性 |
Effects of Cu2+ and Zn2+ stress on physiological characteristics of maize seedlings |
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| HUANG Li-hua
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LI Chong-bi.Effects of Cu2+ and Zn2+ stress on physiological characteristics of maize seedlings[J].Guangdong Agricultural Sciences,2013,40(15):16-18. |
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| Authors: | HUANG Li-hua LI Chong-bi |
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| Abstract: | This thesis studied the fluctuations of some physiological indicators of the growth of maize''s young plant in early germination under Cu2+ and Zn2+ stress. In that situation, the results showed that the germination of the growth of maize''s young plant had been inhibited, and there was stronger toxic effect with higher Cu2+ and Zn2+ concentration. After being treated by Cu2+ and Zn2+, corn chlorophylls and soluble proteins, Peroxides'' (POD), praline decreased, the content of Cu2+, Zn2+ and MDA increased in corn''s lamina.Different concentrations of Cu2+ and Zn2+ had different inflections to physiological indicators of maize, and the young plant of maizes were more sensitive to the intimidation of Cu2+. |
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| Keywords: | corn Cu2+ intimidate Zn2+ intimidate physiological characteristics |
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