植物对酞酸酯的敏感性

Sensitivity of crops to phthalate esters.

采用发芽试验和温室盆试验等方法，研究了酞酸酯（ＤＢＰ、ＤＥＨＰ）对番茄等１２种蔬菜以及水稻、小麦和油菜的影响。结果表明：酞酸酯（１０ｍｇ／１）对种子发芽率无明显影响，但对幼苗形态特征有一定作用。电镜观察表明：受害叶片叶绿体数量减少、结构改变。初步讨论了酞酸酯的理化性质与作物受害的关系，划分了蔬菜对酞酸酯的敏感性顺序。

Germination test and pot experiment have been used to study the effect of phthalate esters(DBP,DEHP )on 15 crops. The result,show that both DBP and DEHp(10mg/1 )has no significant effect on crop germination,but the mor-phological characters of crop seed ling have been changed to certain extent.Electron micrograph observations to su ffered Ieaves reveal that chloroplast structure is changed.The rela-tionship between esters(chemical and phyxical nature)and sensitivity of crons has been discussed too. The sensitivity or-der of vegetables to phthalate esters has been proposed through the study.