DQ304259.1

Detailed information

Microorganism
Uncultured bacterium

Taxonomy
Phylum : nan Class : nan Order : nan Family : nan Genus : nan

Isolation Source
Arable soil

Enzyme Name
putative nitrite reductase

Protein Information
Pro_GenBank I.D： ABC02571.1 Length：158 aa Protein FASTA_sequence: Link

Information about Article
Reference：Throback et al., 2007 Title：Silver (Ag+) Reduces Denitrification and Induces Enrichment of Novel nirK Genotypes in Soil Pubmed ID：17250758.0 Pubmed link： Link Full research link： Link Abstract：The use of silver ions in industry to prevent microbial growth is increasing and silver is a new and an overlooked heavy-metal contaminant in sewage sludge-amended soil. The denitrifying community was the model used to assess the dose-dependent effects of silver ions on microorganisms overtime in soil microcosms. Silver caused a sigmoid dose-dependent reduction in denitrification activity, and no recovery was observed during 90 days. Dentrifiers with nirK, which encodes the copper nitrite reductase, were targeted to estimate abundance and community composition for some of the concentrations. The nirK copy number decreased by the highest addition (100 mg Ag kg(-1) soil), but the nirK diversity increased. Treatment-specific sequences not clustering with any deposited nirK sequences were found, indicating that silver induces enrichment of novel nirK denitrifiers.

Reference：Throback et al., 2007
Title：Silver (Ag+) Reduces Denitrification and Induces Enrichment of Novel nirK Genotypes in Soil
Pubmed ID：17250758.0
Pubmed link： Link
Full research link： Link
Abstract：The use of silver ions in industry to prevent microbial growth is increasing and silver is a new and an overlooked heavy-metal contaminant in sewage sludge-amended soil. The denitrifying community was the model used to assess the dose-dependent effects of silver ions on microorganisms overtime in soil microcosms. Silver caused a sigmoid dose-dependent reduction in denitrification activity, and no recovery was observed during 90 days. Dentrifiers with nirK, which encodes the copper nitrite reductase, were targeted to estimate abundance and community composition for some of the concentrations. The nirK copy number decreased by the highest addition (100 mg Ag kg(-1) soil), but the nirK diversity increased. Treatment-specific sequences not clustering with any deposited nirK sequences were found, indicating that silver induces enrichment of novel nirK denitrifiers.