The bacterial community structure and functional profile in the heavy metal contaminated paddy soils, surrounding a nonferrous smelter in South Korea

Nonferrous metal
DOI: 10.1002/ece3.4170 Publication Date: 2018-05-21T03:20:49Z
ABSTRACT
Abstract The pollution of agricultural soils by the heavy metals affects productivity land and has an impact on quality surrounding ecosystems. This study investigated bacterial community structure in metal contaminated sites along a smelter distantly located paddy field to elucidate factors that are related alterations communities under conditions pollution. Among sites, soil did not show any significant differences their richness diversity. at three were distinct from one another each site, possessing set phylotypes. changes observed abundances phyla genera. variations mostly general properties phylum level, while finer taxonomic levels, concentrations arsenic (As) lead (Pb) factors, affecting structure. relative genera Desulfatibacillum Desulfovirga negatively correlated As, Pb, cadmium (Cd) soil, genus Bacillus was positively As Cd. According results prediction functions, polluted characterized more abundant enzymes involved DNA replication repair, translation, transcription, nucleotide metabolism pathways, amino acid lipid metabolism, as well biodegradation potential xenobiotics, reduced. Our showed adaptation contamination predominantly attributed replacement process, linked pH values.
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