农药学学报2011，Vol.13Issue(4)：387-393,7.DOI:10.3969/j.issn.1008-7303.2011.04.10
咪唑乙烟酸降解菌的分离、鉴定及降解特性研究
Isolation, identification and characterization of a Shewanella hafniensis strain capable of degrading imazethapyr
摘要
Abstract
One strain of imazethapyr-degradable bacterium named PI4 was isolated from the sludge of imazethapyr production plant by high pressure enrichment method. Classification was determined by analysis of morphological, physiological and biochemical characters and sequencing of 16S rDNA for P14 strain. P14 strain was identified as Shewanella hafniensis. Degradation performance was investigated preliminary, in the mineral salt medium with imazethapyr as sole carbon source. The optimal parameters for PI4 strain to degrade imazethapyr up to 92% within 3 d were at 30 ℃ ,pH 6.0, inoculated by 7% ,and at 100 mg/L imazethapyr. After other carbon source added,the degradation ratio of PI4 to imazethapyr was decreased. It's found that sodium citrate was not likely to affect the degradation ratio compared with other carbon sources.关键词
咪唑乙烟酸/降解/哈夫尼希瓦氏菌/分离Key words
imazethapyr/ degradation/ Shewanella hafniensis/ isolation分类
农业科技引用本文复制引用
陈玉洁,束长龙,刘新刚,梅向东,张浩,宋福平,张杰..咪唑乙烟酸降解菌的分离、鉴定及降解特性研究[J].农药学学报,2011,13(4):387-393,7.基金项目
国家高技术研究发展计划(863计划)项目(2011AA1 0A203) （863计划）
长春市国际科技合作项目(09GH14) （09GH14）
