Effects Of An, PCB₁₂₅₄ And TBTO On The Growth Of Porphyry Haitanensis Body Cells

This paper is about the influence of An, PCB₁₂₅₄ and TBTO on porphyry haitanensis body cells growth, carbohydrate, soluble protein content, SOD activity and MDA content in the laboratory. The effects of different pollutants concentration and different treating time were evaluated. The result shows as follows:1. PCB₁₂₅₄ with low concentration (<5μg/L) could restrain chromatophore recovery, while An (<0. 2mg/L) and TBTO (<0.3μg/L) did little effect. But in the first few days of the cultivation, all the three pollutants obviously showed the "exciting effect", accelerated the speed of splitting of cells. As for pollutants under high concentration, An (>0.4mg/L), PCB₁₂₅₄ (>10μg/L) and TBTO(>0.6μg/L) possessed an obviously poisonous effect on body cells of Porphyra haitanensis. They restrained chromatophore recovery, prevented the splitting, destroyed the distribution, changed the normal formation, and accelerated the dying process of the cells.2. When exposed in low concentrated An(<0.2mg/L), PCB₁₂₅₄ (5μg/L) and TBTO(0.3μg/L), the content of soluble carbohydrate in Porphyra haitanensis showed no obvious difference compared with the control group during 72 hours after treated, and the content increased gradually with time prolonged. While under the stimulation of high concentrated An(<0. 2mg/L), PCB₁₂₅₄(<5μg/L) and TBTO (<0. 3μg/L) , the soluble carbohydrate content of Porphyra haitanensis demonstrated the trend of "rise-then-down" during 72 hours after treated.3. Low concentration An (<0.4mg/L)> PCB₁₂₅₄(<5μg/L) and TBTO (<0. 3μg/L) could accelerate the increasing speed of soluble protein content of Porphyry haitanensis at fist, then the acceleration would become restraint. While exposed in high concentration An (>0.8mg/L)> PCB₁₂₅₄ (>10μg/L) and...