| 降解拟除虫菊酯类农药的缺陷假单胞菌的分离、鉴定及降解特性研究 |
| |
| 引用本文： | 廖敏,张海军,谢晓梅.降解拟除虫菊酯类农药的缺陷假单胞菌的分离、鉴定及降解特性研究[J].环境科学学报,2009,29(7):1388-1394. |
| |
| 作者姓名： | 廖敏 张海军 谢晓梅 |
| |
| 作者单位： | 1. 浙江大学环境与资源学院土水资源与环境研究所,杭州,310029;浙江省亚热带土壤与植物营养重点研究实验室,杭州,310029
2. 浙江大学环境与资源学院生态环境研究中心,杭州,310029 |
| |
| 摘 要： | 采用室内培养试验的方法,从拟除虫菊酯类农药生产车间下水道驯化污泥中分离、筛选出1株可同时降解联苯菊酯、甲氰菊酯和氯氰菊酯的高效菌株MSRl4,经鉴定为缺陷假单胞菌(pseudomonas diminuta),并对其生理特性进行研究.结果表明,该菌为革兰氏阴性好氧型球形杆菌,大小为(O.3-0.7)μm,能够以3种菊酯为唯一碳源进行生长.在通气、pH 6.0-7.0、温度30℃、接菌量(OD415nm=0.2)和转速180 r·min-1的环境条件下,对含联苯菊酯、甲氰菊酯和氯氰菊酯各100 mg·L-1的混合培养基培养3d,发现该菌对这3种菊酯的降解效果最好,降解率分别为43.78%、43.91%和43.75%,且降解过程满足一级动力学方程模型,降解半衰期(t1/2)分别为97.6、106.6和101.9h.3种菊酯农药降解率与接菌量、通气量和振荡速率呈正相关.
|
| 关 键 词： | 拟除虫菊酯类农药 生物降解 缺陷假单胞菌 |
| 收稿时间： | 2008/10/15 0:00:00 |
| 修稿时间： | 2/26/2009 3:11:49 PM |
Isolation,identification and degradation characteristics of a Pseudomonas diminuta strain able to degrade pyrethriod pesticides |
| |
| LIAO Min,ZHANG Haijun and XIE Xiaomei.Isolation,identification and degradation characteristics of a Pseudomonas diminuta strain able to degrade pyrethriod pesticides[J].Acta Scientiae Circumstantiae,2009,29(7):1388-1394. |
| |
| Authors: | LIAO Min ZHANG Haijun and XIE Xiaomei |
| |
| Institution: | 1. Institute of Soil and Water Resource and Environment Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310029; 2. Zhejiang Provincial Key Laboratory of Subtropic Soil and Plant Nutrition, Hangzhou 310029,1. Institute of Soil and Water Resource and Environment Science, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310029; 2. Zhejiang Provincial Key Laboratory of Subtropic Soil and Plant Nutrition, Hangzhou 310029 and Research Center for Eco-Environmental Sciences, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310029 |
| |
| Abstract: | |
| |
| Keywords: | synthetic pyrethroid insecticides biodegradation Pseudomonas diminuta |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《环境科学学报》浏览原始摘要信息 |
| 点击此处可从《环境科学学报》下载免费的PDF全文 |
|
