期刊
SCIENCE OF THE TOTAL ENVIRONMENT
卷 461, 期 -, 页码 330-340出版社
ELSEVIER
DOI: 10.1016/j.scitotenv.2013.04.087
关键词
Gold and arsenic mine; Arsenic mobilization; Biofilm; diversity
资金
- Polish Ministry of Science and Higher Education [PBZ-KBN-111/T09/2004]
In this paper we characterize the biofilm community from an ancient Zloty Stok gold and arsenic mine. Bacterial diversity was examined using a culture-independent technique based on 16S rRNA gene amplification, cloning and sequencing. We show that unexpectedly the microbial diversity of this community was extremely high (more than 190 OTUs detected), with the most numerous members from Rhizobiales (alpha-Proteobacteria). Although the level of rock biofilm diversity was similar to the microbial mat community we have previously characterized in the same adit, its taxonomic composition was completely different. Detailed analysis of functional arrA and aioA genes, chemical properties of siderophores found in pore water as well as the biofilm chemical composition suggest that the biofilm community contributes to arsenic pollution of surrounding water in a biogeochemical cycle similar to the one observed in bacterial mats. To interpret our results concerning the biological arsenic cycle, we applied the theory of ecological pyramids of Charles Elton. (C) 2013 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据