邻苯二甲酸酯对浅层含水层沉积物微生物多样性的影响

被引：6

作者：

吴琼

刘慧

张丹

施霞珍

机构：

[1] 中国地质大学(武汉),生物地质与环境地质教育部重点实验室

来源：

中国环境科学 | 2010年 / 30卷 / 05期

关键词：

邻苯二甲酸正丁酯(DBP); 浅层含水层; 微生物多样性; BIOLOG;

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：

在模拟浅层地下水低温、缺氧的环境条件下,利用BIOLOGECO微平板法研究了经不同浓度邻苯二甲酸正丁酯(DBP)处理的江汉平原浅层含水层沉积物中微生物的数量、整体活性、多样性指数以及代谢功能多样性.结果表明,微生物的数量、整体活性随DBP浓度不同有差异;丰富度指数、Shannon指数与对照相比差异均不显著,而Simpson指数和McIntosh指数差异显著.低浓度DBP(<400mg/kg)可以抑制部分微生物的生长,而促进与DBP代谢有关的微生物活性;高浓度DBP(796mg/kg)则抑制了微生物数量,破坏物种的均一度,最终导致沉积物中微生物功能多样性发生改变而产生代谢变异性.

引用

页码：671 / 676

页数：6

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