泉州湾表层沉积物对多环芳烃潜在降解活性的研究  

The Potential Biodegradation Activity of Polycyclic Aromatic Hydrocarbons in Surface Sediments of Quanzhou Bay

作　　者：谷体华[1] 袁建军[2] 郑天凌[1] 田蕴[1] 

机构地区：[1]厦门大学生命科学学院应用与环境微生物研究所,福建厦门361005 [2]泉州师范学院生物学系,福建泉州362000

出　　处：《厦门大学学报（自然科学版）》2005年第B06期102-106,共5页Journal of Xiamen University：Natural Science

基　　金：国家自然科学基金(40476047);泉州市科技计划重点项目(Z20034)资助

摘　　要：在泉州湾设置7个站位,测定了2004年2月航次表层沉积物在添加PAHs后呼吸活性的变化,结合多环芳烃降解菌的数量及细菌总量的测定,对泉州湾海域表层沉积物对多环芳烃的降解潜力进行综合分析.结果显示,添加碳源在一定程度上提高了土壤的呼吸活性,外加PAHs对各站点的影响有别,同一样品受菲、芘、荧蒽的影响各不相同,其影响程度与本土降解菌的数量有一定相关性,表明细菌在海洋环境PAHs的生物降解中起着至关重要的作用;19d后各样品的呼吸作用强度逐渐接近自然对照样,可见该海域表层沉积物中微生物有着强大的适应不良环境的能力与降解PAHs的潜力.Seven stations were established in Quanzhou Bay to determine the changes of biodegradation activity in surface sediments with the addition of polycyclic aromatic hydrocarbons,the number of PAHs-degrading bacteria and the total numbers of bacteria in sediments.And then we analyzed the potential biodegradation activity of the sediments.The result showed that the addition of PAHs increased the microbial activity in the surface sediments.PAHs had different effects on the respiration in surface sediments,and the effects were relative to the number of indigenous degrading bacteria,which indicated bacteria played an important role in the biodegradation of PAHs.After the ninteenth day,the stimulation of PAHs became very little,The microorganisms in the surface sediments of Quanzhou Bay had a powerful ability of adapting to polluted environment and degrading PAHs.

关 键 词：表层沉积物 泉州湾 降解活性 多环芳烃降解菌 2004年2月 PAHS 呼吸活性 综合分析 影响程度 生物降解 海洋环境 接近自然 作用强度 相关性 微生物 样品 添加 潜力 海域 测定 细菌 

分 类 号：X172[环境科学与工程—环境科学] P736.41[天文地球—海洋地质]