朱立成,邹小明,刘江华,王忠先.三唑磷降解菌的筛选、鉴定及其系统发育分析[J].井冈山大学自然版,2011,(1):45-49 |
三唑磷降解菌的筛选、鉴定及其系统发育分析 |
ISOLATION,IDENTIFICATION AND PHYLOGENETIC ANALYSIS OF TRIAZOPHOS BIODEGRADING BACTERIA |
|
DOI: |
中文关键词: 三唑磷 生物降解 假单胞菌属 |
英文关键词: Triazophos biodegradation Pseudonmonas |
基金项目:江西省教育厅科技项目(赣教技字[2007]322号); 江西省千名科技人员入园入企行动合作项目 |
|
摘要点击次数: 11680 |
全文下载次数: 150 |
中文摘要: |
从长期施用有机磷农药的土壤中,以三唑磷为唯一碳源和能源,采用逐渐加量的驯化方式,分离纯化到2株对三唑磷有较好降解能力的细菌,命名为TAP-W和TAP-R。其中TAP-W菌革兰氏染色阴性,能够在30℃~40℃范围内和pH6.0~9.0范围内良好生长,其最适生长温度为35℃,最适pH为7.0。TAP-W菌在含0.1%三唑磷的无机盐培养基中(三唑磷浓度400mg/L)振荡培养72h后,对三唑磷降解率最高,达到65.9%。根据TAP-W菌株的形态特征,生理、生化特性和系统发育分析,初步鉴定其为假单胞菌属(Pseudonmonas)细菌。 |
英文摘要: |
Two Triazophos biodegradation bacteria strains named as TAP-W and TAP-R were isolated from the soil samples obtained in fields with frequent application in organ-phosphorus pesticides.TAP-W is a gram-negative bacterium,can grow well at 30~40 ℃ and pH 6.0~9.0,with the optimum temperature of 35 ℃ and pH of 7.0.After cultured in salt medium with 0.1% Triazophos(400mg/L) at a shaker(150 rpm) for 72 hours,TAP-W had the highest biodegradation rate of 65.9%.Based on the morphological,physiological and biochemical properties and phylogenetic analysis according to its 16S rRNA gene sequences,the TAP-W strain was identified as the genus Pseudonmonas. |
查看全文
查看/发表评论 下载PDF阅读器 |
关闭 |
|
|
|