吴芳;张振轩;何欣欣;朱亚先;张勇;

• 1:厦门大学环境与生态学院近海海洋环境科学国家重点实验室
• 2:厦门大学化学化工学院化学系
• 3:漳州职业技术学院

摘要(Abstract)：

将发光细菌毒性测试方法应用于典型多环芳烃生物降解过程的毒性评价,研究了菲和芘单独及混合状态下生物降解过程中的毒性变化。结果表明:溶解态的菲和芘在一定浓度范围内对发光细菌均具有毒性,菲和芘对发光细菌的10 min-EC50值分别为1.61×10-5mol·L-1和2.31×10-6mol·L-1。单组分和混合组分的菲和芘经过微生物降解后,其毒性显著降低。混合组分生物降解体系中由于菲和芘分子之间的互相作用,使其对发光细菌的毒性效应与其单独存在时有差异。生物降解的各阶段,混合组分降解体系的毒性均大于单组分菲或芘降解体系的毒性,且在降解完全的后期,培养液的毒性有增加的趋势。这与菲和芘降解中间产物的积累变化有关。

关键词(KeyWords)： 发光细菌;多环芳烃;生物降解;毒性

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(No.21177102.21075102);; 教育部博士点基金(No.20130121130005)

作者(Author): 吴芳;张振轩;何欣欣;朱亚先;张勇;

Email:

DOI:

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