| 磷缓解水鳖镉毒害的生理研究 |
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| 引用本文： | 王娜,陈国祥,等.磷缓解水鳖镉毒害的生理研究[J].西北植物学报,2001,21(6):1176-1181. |
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| 作者姓名： | 王娜 陈国祥 |
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| 作者单位： | 南京师范大学生命科学学院 |
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| 基金项目： | 江苏省教育委员会高校科研项目 ( 1 999SWX0 0 0 0 SJ1 ) |
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| 摘 要： | 研究了Cd对水鳖生理生化过程的影响及Pi对Cd胁迫的缓解作用。结果显示，Cd能抑制水鳖的代谢和生长，使叶绿素含量与光合速率下降，呼吸速率与可溶性糖含量增加，POD活性增强；当加入0.6mmol/L Pi后，能相对减轻Cd造成的毒害，表现出Pi对Cd的拮抗和缓解作用。
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| 关 键 词： | 水鳖 Cd毒害 Pi 缓解作用 镉 重金属污染 水生植物 生态生理效应 |
| 文章编号： | 1000-4025-(2001)06-1176-06 |
Physiological studies on poisoning effects of Cd on Hydrocharis asiatica through inhibition of Pi |
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| WANG N,CHEN Guo xiang,SHAO Zhi guang,LIU Shuang,Wu Guo rong,LU Chang mei.Physiological studies on poisoning effects of Cd on Hydrocharis asiatica through inhibition of Pi[J].Acta Botanica Boreali-Occidentalia Sinica,2001,21(6):1176-1181. |
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| Authors: | WANG N CHEN Guo xiang SHAO Zhi guang LIU Shuang Wu Guo rong LU Chang mei |
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| Abstract: | The effects of Cd on Hydrocharis asiatica Miq and the function of Pi decreasing the stress of Cd were proved in this paper.The results showed that the growth and metabolism of Hydrocharis asiatica Miq were inhibited by Cd.The plant exhibited a decrease of the chlorophyll content,and the photosynthetic rate,an increasing of the respiration rate,the soluble sugar content and POD activity.When 0.6 mmol/L Pi was used once,the damage effects of Cd were reduced,which showed that Pi had the function of decreasing the stress of Cd. |
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| Keywords: | Hydrocharis asiatica Miq Cd injury inhibiting role of Pi to poisoning |
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