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一株好氧反硝化菌的分离及特性研究
引用本文:朱月琪,卫晋波,曾国驱,孙国萍.一株好氧反硝化菌的分离及特性研究[J].微生物学通报,2009,36(4):0616-0619.
作者姓名:朱月琪  卫晋波  曾国驱  孙国萍
作者单位:1. 广东省微生物研究所,广东,广州,510070;广东工业大学,广东,广州,510070
2. 广东省微生物研究所,广东,广州,510070
基金项目:国家863计划项目(No. 2006AA06Z322); 广州市科技项目(No. 2006Z3-E046)
摘    要:从土壤中分离得到一株好氧反硝化细菌CY1, 该菌株在厌氧和好氧条件下均具有反硝化能力。硝酸盐氮初始浓度为137.25 mg/L, 30 h内硝酸盐氮去除率分别为99.98%(厌氧)和60.16%(好氧)。通过形态学特征、生理生化特性及16S rDNA同源性比较对菌株CY1进行鉴定, 初步判断CY1为泛养副球菌(Paracoccus pantotrophus)。

关 键 词:好氧反硝化    硝酸盐    亚硝酸盐

Isolation and Characterization of an Aerobic Denitrifier
ZHU Yue-Qi,WEI Jin-Bo,ZENG Guo-Qu and SUN Guo-Ping.Isolation and Characterization of an Aerobic Denitrifier[J].Microbiology,2009,36(4):0616-0619.
Authors:ZHU Yue-Qi  WEI Jin-Bo  ZENG Guo-Qu and SUN Guo-Ping
Institution:(1. Guangdong Institute of Microbiology, Guangzhou, Guangdong 510070, China) (2. Guangdong University of Technology, Guangzhou, Guangdong 510070, China);Guangdong Institute of Microbiology, Guangzhou, Guangdong 510070, China;Guangdong Institute of Microbiology, Guangzhou, Guangdong 510070, China;Guangdong Institute of Microbiology, Guangzhou, Guangdong 510070, China
Abstract:An aerobic denitrifying bacterial strain CY1 was isolated from soil. The denitrifying experiment results showed that under anaerobic or aerobic conditions the reduction efficiency within 30 hours was up to 99.98% (anaerobic) and 60.16% (anaerobic) respectively with initial NO3-N concentration of 137.25 mg/L. According to its morphologica, physiological and biochemical characters, as well as 16S rDNA sequence homology comparison, strain CY1 was identified as a member of Paracoccus pantotrophus.
Keywords:Aerobic denitrification  Nitrate  Nitrite
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