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OALib Journal期刊
ISSN: 2333-9721
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呋喃丹降解菌cfds-1的筛选鉴定及降解特性
DOI: 10.3724/SP.J.1145.2011.00237, PP. 237-242
Keywords: sphingomonassp.,呋喃丹,生物降解,生物修复
Abstract:
为有效治理呋喃丹的污染，从受呋喃丹长期污染的土壤中分离筛选到一株高效降解呋喃丹的菌株cfds-1，经形态、生理生化、16srdna（genbankaccessionno.ay702969）同源性及系统发育地位等分析，将其初步鉴定为sphingomonassp.当接种量为5%时，cfds-1能在48h内降解100mgl-1的呋喃丹，对于高达300mgl-1的呋喃丹依然有降解效果；cfds-1对呋喃丹的降解率与起始接种量呈正相关；降解呋喃丹的最适ph是8.0~9.0；在20~42℃范围内，温度对cfds-1降解呋喃丹没有显著影响；该菌在250ml三角瓶中装液量为100ml时，对呋喃丹的降解效果最好.土壤实验表明，该菌株同样能有效地降解土壤中的呋喃丹残留.图10表1参20
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