石油污染水对小麦的毒性胁迫

Toxicity of Oil Polluted Water on Wheat (Triticum aestivum)

为了探明石油污染水的毒理效应,通过实验室人工控制毒理实验,研究了石油污染水暴露对小麦叶片叶绿素(CHL)和超氧化物歧化酶(SOD)活性的影响。结果显示:染毒7 d后,各浓度组小麦叶片的CHL含量均被显著(P <0.01)抑制,并随着石油污染水稀释程度的降低而逐渐降低。相反小麦叶片的SOD酶活性被显著(P <0.01)诱导,但是,同样随着石油污染水稀释程度的降低,而呈现逐渐降低的趋势。综上,CHL和SOD均可作为石油污染水对植物毒理效应影响的生物标志物。

The toxic effects of oil polluted water on the content of CHL and the superoxide dismutases (SOD) activity of wheat (Triticum aestivum) were examined in this study. The results indicated that after the 7-day exposure, the CHL content in wheat leaves among all the treatments was significantly (P < 0.01) decreased compared with the control. And it decreased as the oil polluted water concentrations increased. On the contrary, the SOD activity in wheat leaves was induced significantly (P < 0.01). Furthermore, the SOD activity increased with the increasing oil polluted water con-centrations. These results indicated that both the CHL content and SOD activity could be recognized as good bio-markers for evaluating the effects of oil polluted water exposure.