摘要
有机污染物造成的环境问题日趋严重,嗜热菌具有高效降解环境有机污染物的潜力.嗜热菌在高温条件下降解有机污染物,代谢速度快,嗜温杂菌的竞争减少,同时高温环境下一些难降解有机物的溶解度和生物可利用性大大提高,有机污染物可得到快速、彻底降解.因此,嗜热菌对有机废水生物处理及有机物污染场地生物修复等意义重大.本文从嗜热菌降解有机污染物的特点、温度的影响、降解途径、降解酶及其编码基因及工程应用等角度,介绍了嗜热菌降解有机污染物的研究进展,并对嗜热菌降解有机污染物的机理、菌种资源储备、技术策略及应用研发等研究方向进行了展望.
Persistent organic pollutants have increasingl while thermophiles have the high potential of degrading lutants. At high temperatures, thermophiles have mesophiles is reduced, meanwhile, the solubility y become a critical environmental concern, various kinds of environmental organic pol- higher metabolic activity, and the competition by and bioavailability of some persistent organic pol- lutants are greatly increased, and thus, the degradation of the pollutants by thermophiles is more rapid and complete. Therefore, thermophils are of great significance for the bio-treatment of organic wastewater and the bioremediation of organic pollutants-contaminated sites. This paper introduced the research progress on the degradation of organic pollutants by thermophiles in terms of the char- acteristics of thermophiles in degrading organic pollutants, the effects of temperature on the degrada tion, the degradation pathways, the degradation enzymes, their coding genes, and practical engi- neering applications. The future research directions including the degradation mechanisms of ther- mophiles, their resources reserve, related technology strategies and their applications were also prospected.
出处
《应用生态学报》
CAS
CSCD
北大核心
2012年第11期3218-3226,共9页
Chinese Journal of Applied Ecology
基金
国家自然科学基金项目(40901153)
国家高技术研究发展计划项目(2009AA063104)
浙江省重大科技专项重点项目(2009C13003)资助
关键词
温度
降解途径
嗜热酶
生物修复
temperature
degradation pathway
thermophilic enzyme
bioremediation.
