1,3-二氯苯污染底泥的零价铁修复对微生物群落结构的影响

被引：4

作者：

王新新 ^{[1
,2
]}

张颖 ^{[1
]}

韩斯琴 ^{[1
]}

李慧 ^{[1
]}

机构：

[1] 中国科学院沈阳应用生态研究所陆地生态过程重点实验室

[2] 中国科学院研究生院

来源：

农业环境科学学报 | 2009年 / 28卷 / 01期

关键词：

零价铁; 底泥; 1,3-二氯苯; 微生物种群结构; 变性梯度凝胶电泳; 磷脂脂肪酸;

D O I：

暂无

中图分类号：

X172 [环境微生物学];

学科分类号：

071012 ; 0713 ;

摘要：

通过采用零价铁修复1,3-二氯苯污染底泥,结合变性梯度凝胶电泳(DGGE)和磷脂脂肪酸(PLFA)技术分析了零价铁修复对底泥微生物群落结构的影响。结果表明,零价铁对底泥中1,3-二氯苯具有较好的去除效果,培养13d后去除率可达70.4%,较未加零价铁的对照处理高50.8%。DGGE指纹图谱分析表明:1,3-二氯苯刺激了底泥中耐受性较高的假单胞菌的增殖;零价铁修复使增殖的耐受菌群的量减少,敏感菌群的量增多,并使底泥微生物的Shannon多样性指数恢复至未污染对照水平。PLFA指纹图谱分析表明:尽管零价铁修复并未恢复底泥中任何一种PLFA的量,但是却恢复G+细菌的量至未污染对照水平。

引用

页码：173 / 178

页数：6

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