| 二甲戊乐灵降解细菌的分离及降解特性 |
| 摘要点击 1577 全文点击 1513 投稿时间：2004-03-10 修订日期：2004-06-22 |
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| 中文关键词 二甲戊乐灵 细菌 降解 生长量 |
| 英文关键词 pendimethalin bacteria degradation bacterial growth |
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| 中文摘要 |
| 分离鉴定了二甲戊乐灵降解细菌 ,并研究了培养条件对二甲戊乐灵降解和细菌生长的影响 .结果表明 ,所分离的29株细菌中有3株在3d内对100mg·L-1二甲戊乐灵的降解率在80%以上 ,选择HB-1、WB-12株细菌进一步研究 ,此2株细菌经鉴定分别属于假单胞菌(Pseudomonas)和玫瑰色微球菌(Mirococcusluteus) .结果表明 2株细菌在中性培养液中外加碳源浓度为0.2%、二甲戊乐灵浓度不大于100mg·L-1、30～40℃培养的条件下 ,细菌生长量和二甲戊乐灵的降解率都达到最大. |
| 英文摘要 |
| Microbial degradation of pendimethalin and the effects of culture conditions in vitro are studied. Twenty-nine strains are isolated by enrichment from soil and sludge. 3 strains can degrade more than 80% of pendimethalin of 100 mg·L-1 in 3 days in culture fluid. 2 bacteria are considered as efficiently degrading strains identified as Pseudomonas,Mirococcus luteus. The efficiency of degradation is affected by culture conditions such as pH,temperature and the concentration of sucrose and pendimethanlin. The optimal conditions are proposed. |
