CAJ | 학술논문

威氏海链藻(Thalassiosira weissflogii)属沿海中心硅藻纲,是海洋硅藻的模式种之一。实验探讨氮营养盐(硝酸盐, N, c(N)分别为8.0,16.0,32.0,64.0μmol/L)、石油烃(0号柴油分散液, WAFs, c(WAFs)分别为0,0.1,0.5,1.0,5.0 mg/L)、抗生素(土霉素, c(OTC)分别为,0,1.0,3.0,5.0,10.0 mg/L)等3类近海常见污染物对威氏海链藻细胞生长及生化组成的影响。结果表明,3类近海常见污染物对藻生长(即藻细胞密度)、叶绿素a合成、蛋白质生成、藻细胞抗氧化能力(即超氧化物歧化酶活性)、脂质过氧化(即丙二醛含量)的影响程度分别为 WAFs>N>OTC、N>OTC>WAFs、N>WAFs>OTC、WAFs>N>OTC、OTC？N>WAFs；影响程度的差异,揭示了近海各污染物的毒性作用机制及靶位不同。
위씨해련조(Thalassiosira weissflogii)속연해중심규조강,시해양규조적모식충지일。실험탐토담영양염(초산염, N, c(N)분별위8.0,16.0,32.0,64.0μmol/L)、석유경(0호시유분산액, WAFs, c(WAFs)분별위0,0.1,0.5,1.0,5.0 mg/L)、항생소(토매소, c(OTC)분별위,0,1.0,3.0,5.0,10.0 mg/L)등3류근해상견오염물대위씨해련조세포생장급생화조성적영향。결과표명,3류근해상견오염물대조생장(즉조세포밀도)、협록소a합성、단백질생성、조세포항양화능력(즉초양화물기화매활성)、지질과양화(즉병이철함량)적영향정도분별위 WAFs>N>OTC、N>OTC>WAFs、N>WAFs>OTC、WAFs>N>OTC、OTC？N>WAFs；영향정도적차이,게시료근해각오염물적독성작용궤제급파위불동。
Thalassiosira weissflogii, a coastal centric diatom, was cultivated at different concentrations of nitrogen nutrients (nitrate, N, 8.0, 16.0, 32.0, 64.0 μmol/L), petroleum hydrocarbons (water accommodated fractions of No.0 diesel oil, WAFs, 0, 0.1, 0.5, 1.0, 5.0 mg/L), and antibiotics (oxytetracycline, OTC, 0, 1.0, 3.0, 5.0, 10.0 mg/L). The results showed that both cell growth and biochemical compositions were affected by N, OTC, and WAFs addition. The influence degree on the algal growth (i.e. cell density), the synthesis of chlorophyll a and proteins, algal cell antioxidant capacity (i.e. superoxide dismutase activity), and lipid peroxidation (i.e. malondialdehyde content) was WAFs>N>OTC, N>OTC>WAFs, N>WAFs>OTC, WAFs>N>OTC, and OTC?N>WAFs, respectively. According to the difference of influence degree, the toxic mechanism and target organisms of these three kinds of marine coastal pollutants were different.