Cumulative effects of short-term polymetal contamination on soil bacterial community structure

被引：54
|
作者：
Ranjard, L [1 ]
Lignier, L [1 ]
Chaussod, R [1 ]
机构：
[1] Univ Bourgogne, INRA, UMR Microbiol & Geochim Sols, CMSE, F-21065 Dijon, France
来源：
APPLIED AND ENVIRONMENTAL MICROBIOLOGY | 2006年 / 72卷 / 02期
关键词：
D O I：
10.1128/AEM.72.2.1684-1687.2006
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
In this study we evaluated the short-term effects of copper, cadmium, and mercury, added singly or in combination at different doses, on soil bacterial community structure using the bacterial automated ribosomal intergenic spacer analysis (B-ARISA) fingerprinting technique. Principal-component analysis of B-ARISA profiles allowed us to deduce the following order of impact: (Cu + Cd + Hg) >> Hg >= Cd > Cu. These results demonstrated that there was a cumulative effect of metal toxicity. Furthermore, the trend of modifications was consistent with the "hump-backed" relationships between biological diversity and disturbance described by Giller et al.
引用
收藏
页码：1684 / 1687
页数：4
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