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对需氧和厌氧苯乙烯降解的乙烯基侧链氧化和芳香环开裂途径、高级苯乙烯降解途径基因组和调节中枢、影响苯乙烯降解的生理学因子、生物膜中苯乙烯降解微生物和途径酶的生物技术运用的相关文献进行分析研究。

关键词:苯乙烯;微生物;生物降解;分解代谢中图分类号:Q93;O625.12 文献标识码:A 文章编号:1004-311X(2004)06-0079-04收稿日期:2004-04-14;修回日期:2004-09-03863 项目:国家高技术研究发展计划( 863计划 )项目资助(2002AA649050)作者简介:吴献花(1971-),女,硕士,副教授,从事环境生态学与环境工程学教研工作,发表论文16篇;孙石(1957-),男,博士,教授,博士导,从事环境污染治理技术基础与工业应用研究,发表论文70余篇。

全球研究者自20世纪70年代以来已从各地土壤、废水中分离到有苯乙烯降解能力的多种微生物,包括假单胞菌属(Pseudomonas )、红球菌属(Rhodococcus )、黄杆菌属(Xanthobac te r )、棒状杆菌属(Corynebacte rium )、肠杆菌属(Ente robacter )、诺卡氏菌属(Nocardia )等菌种。

作者依据苯乙烯降解主要途径综述苯乙烯微生物降解的生物化学、遗传学和生理学,确定各种分解代谢途径相关微生物及其酶的意义。

国内尚无同类研究报道。

1 需氧苯乙烯降解苯乙烯微生物需氧降解的两条主要途径包括乙烯基侧链的氧化和芳香环开裂(图1)。