Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/201379
Type: Artigo de periódico
Title: Changes In The Bacterial Community Of Soil From A Neutral Mine Drainage Channel.
Author: Pereira, Letícia Bianca
Vicentini, Renato
Ottoboni, Laura M M
Abstract: Mine drainage is an important environmental disturbance that affects the chemical and biological components in natural resources. However, little is known about the effects of neutral mine drainage on the soil bacteria community. Here, a high-throughput 16S rDNA pyrosequencing approach was used to evaluate differences in composition, structure, and diversity of bacteria communities in samples from a neutral drainage channel, and soil next to the channel, at the Sossego copper mine in Brazil. Advanced statistical analyses were used to explore the relationships between the biological and chemical data. The results showed that the neutral mine drainage caused changes in the composition and structure of the microbial community, but not in its diversity. The Deinococcus/Thermus phylum, especially the Meiothermus genus, was in large part responsible for the differences between the communities, and was positively associated with the presence of copper and other heavy metals in the environmental samples. Other important parameters that influenced the bacterial diversity and composition were the elements potassium, sodium, nickel, and zinc, as well as pH. The findings contribute to the understanding of bacterial diversity in soils impacted by neutral mine drainage, and demonstrate that heavy metals play an important role in shaping the microbial population in mine environments.
Subject: Bacteria
Biodiversity
Brazil
Copper
Deinococcus
Hydrogen-ion Concentration
Metals, Heavy
Mining
Multivariate Analysis
Nickel
Potassium
Rna, Ribosomal, 16s
Regression Analysis
Sequence Analysis, Dna
Sodium
Soil
Soil Microbiology
Soil Pollutants
Zinc
Rights: aberto
Identifier DOI: 10.1371/journal.pone.0096605
Address: http://www.ncbi.nlm.nih.gov/pubmed/24796430
Date Issue: 2014
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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