深海弯曲菌（Thalassolituus spp.）低温烷烃降解机制的研究及其在海洋环境中多样性分析

• Main Author: 陈昕
• Other Authors: 邵宗泽
• Format: Thesis
• Language: Chinese
• Published: 2014
• Subjects: 深海弯曲菌; 烷烃; 生物降解; 低温; 降解机制; 冷适应性; 生物多样性; Thalassolituus; alkane; biodegradation; low temperature; degradation mechanism; cold adaption; biodiversity; Arctic; Arctic Ocean
• Online Access: http://dspace.xmu.edu.cn/handle/2288/83737

海洋石油污染问题广受关注，烷烃是原油中的重要成分。在南北极和其他低温地区人类活动的增加，研究低温地区的石油烃降解具有重要意义。前期研究表明，深海弯曲菌（Thalassolituus）在北冰洋表层海水的石油富集菌群中常常以绝对优势菌出现在石油降解菌群，但是原因不明。为此，本文以已经获得深海弯曲菌菌株R6-15为出发菌，以食烷菌（Alcanivorax）模式菌株A.borkumensisSK2、A.dieseloleiB-5和A.jadensisT9为参比菌株，研究它们烷烃低温降解的优势机制。为进一步验证实验结果，本文又重新从北极低温富集菌群中分离获得了另外一株降解菌Thalassolituuss. Mairne crude oil pollution is a worldwide problem, alkane is an important content in the crude oil. As the activities of human in polar area and other cold environments have increased, it’s important to study the petroleum degrading in the cold areas. Previous study indicated that Thalassolituus is usually dominant in oil-degrading consortia from surface seawater of the Arctic Ocean and the reason. 学位：理学硕士 院系专业：生命科学学院_生物化学与分子生物学 学号：21620111152312