%0 Journal Article
%T Isolation and Characterization of a Triazophos-degrading Strain GS-1 and Its Degrading Characteristics
三唑磷降解菌株GS-1的分离鉴定及其降解特性的研究
%A GUO Xin-Qiang
%A LI Rong
%A LIN Dong-Qing
%A ZHU Bin
%A LI Shun-Peng
%A JIANG Jian-Dong
%A
郭新强
%A 李 荣
%A 林栋青
%A 朱 彬
%A 李顺鹏
%A 蒋建东
%J 微生物学通报
%D 2009
%I
%X A strain designated as GS-1, capable of degrading triazophos efficiently, was isolated from the sludge in an organophosphate-pesticides wastewater treatment plant. Strain GS-1 was identified preliminarily as Diaphorobacter sp. based on its physiological and biochemical characters and the result of the 16S rDNA homologue sequence analysis. Strain GS-1 could grow with triazophos as its sole carbon source, and degrade 100 mg/L triazophos to non-detectable level within 12 h. The metabolite, 1-phenyl-3-hydroxy-1, 2,4-triazole, produced during triazophos biodegradation was finally transformed within 36 h. The optimal initial pH value and temperature for triazophos degradation by GS-1 was 7.0 and 30°C, respectively. Strain GS-1 could also degrade some other organophosphorus-pesticides such as fenitrothion, phoxim, chlorpyrifos and methyl-parathion. Strain GS-1 also showed chemoatxis to triazophos, fenitrothion and phoxim, indicating the close relationship between degrading and chemotaxis characteristics. This study demonstrated that strain GS-1 had great potential in the bioremediation of organophosphorus-pesticides contaminated sites.
%K Triazophos
%K Degradation
%K Diaphorobacter sp
%K Chemotaxis
%K 1-phenyl-3-hydroxy-1
%K 2
%K 4-triazole
三唑磷
%K 降解
%K Diaphorobacter
%K sp.
%K 趋化性
%K 苯唑醇
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=78024727B5F4EF6AA9CA8E605B5FC464&aid=317A2962DE3753EE3AC95D35AF8C0613&yid=DE12191FBD62783C&vid=933658645952ED9F&iid=5D311CA918CA9A03&sid=CF89D3C02791C82E&eid=1529CB0C2A6A7E90&journal_id=0253-2654&journal_name=微生物学通报&referenced_num=2&reference_num=11