摘要
通过大田模拟试验，研究了Ｃｄ、Ｆｅ、Ｃｄ＋Ｆｅ和Ｆｅ＋Ｃｄ处理下红花大金元烟草（ＮｉｃｏｔｉａｎａｔａｂａｃｕｍＬ．）叶片１７种蛋白水解氨基酸和总氨基酸含量的变化情况。结果表明：Ｃｄ、Ｆｅ、Ｃｄ＋Ｆｅ和Ｆｅ＋Ｃｄ处理均不改变氨基酸的种类组成；Ｃｄ对烟草叶片氨基酸含量的影响比Ｆｅ大；Ｆｅ抑制Ｃｄ对氨基酸含量的影响，Ｃｄ也抑制Ｆｅ的作用，Ｃｄ与Ｆｅ相互拮抗，并初步探讨了拮抗机制；建议在Ｃｄ污染地区通过施加Ｆｅ来减轻Ｃｄ对烟草的毒害。
Based on simulated field experiments,this paper provided information about the changes of the content of 17 amino acid and total amino acid in tobacco leaves under the treatment of Cd、Fe、Cd+Fe and Fe+Cd.The results showed that the types of amino acid did not change under the treatment of Cd、Fe、Cd+Fe and Fe+Cd;Amino acid content increased with the increase of Cd concentration;the effect of Cd on amino acid content was more significant than that of Fe;the effect of Cd on amino acid content was inhibited by Fe,and the effect of Fe was decreased by Cd.The interaction between Cd and Fe was antagonistical.On the antagonistical mechanism,it is suggested that the poison of Cd on tobacco could be impaired by Fe supply in Cd pollution area.
出处
《生态学报》
CAS
CSCD
北大核心
1998年第6期640-647,共8页
Acta Ecologica Sinica
基金
国家自然科学基金
