Cd污染对植物生理生化的影响

Effect of Cd Pollution on the Physiology and Biochemistry of Piant.

通过盆栽试验及对植物体内生理生化活性的调查表明，Ｃｄ污染可使植物叶片ＳＯＤ、ＣＡＴ、ＰＰＯ、ＰＯＤ和硝酸还原酶的活性下降，但在耐性作物体内，这些酶的活性可以维持；Ｃｄ污染可使叶绿体和可溶性总糖的含量降低，但因作物种类不同而异，Ｃｄ污染使作物叶片ＤＮＡ的合成受阻，并在ＤＮＡ提取物中检出Ｃｄ。

AbstractThe result of the test on the physiology and Biochemistry of plantindicated that Cd pollution reduced the activity of SOD,CAT、PPO and ni-trate redactase in the leaves,but it did not affected the activity of theenzvme in the Cd-tolerant plants,Cd pollution decreasd the content ofchloroplast and soluable sugar to different degrees among different plants,Cd pollution made the Synthesise of DNA in leaves difficult and Cd couldbe found in DNA extract.