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Thaumarchaeal Ammonia Oxidation in an Acidic Forest Peat Soil Is Not Influenced by Ammonium Amendment
ABSTRACT Both bacteria and thaumarchaea contribute to ammonia oxidation, the first step in nitrification. The abundance of putative ammonia oxidizers is estimated by quantification of the functionalExpand
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Bioinformatic Analysis Reveals High Diversity of Bacterial Genes for Laccase-Like Enzymes
Fungal laccases have been used in various fields ranging from processes in wood and paper industries to environmental applications. Although a few bacterial laccases have been characterized in recentExpand
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Stimulation of thaumarchaeal ammonia oxidation by ammonia derived from organic nitrogen but not added inorganic nitrogen.
Ammonia oxidation, the first step in nitrification, is performed by autotrophic bacteria and thaumarchaea, whose relative contributions vary in different soils. Distinctive environmental niches forExpand
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The Rok protein of Bacillus subtilis represses genes for cell surface and extracellular functions.
Rok is a repressor of the transcriptional activator ComK and is therefore an important regulator of competence in Bacillus subtilis (T. T. Hoa, P. Tortosa, M. Albano, and D. Dubnau, Mol. Microbiol.Expand
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Influence of temperature and soil water content on bacterial, archaeal and denitrifying microbial communities in drained fen grassland soil microcosms.
In this study, microcosms were used to investigate the influence of temperature (4 and 28 degrees C) and water content (45% and 90% WHC) on microbial communities and activities in carbon-rich fenExpand
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Postexponential regulation of sin operon expression in Bacillus subtilis.
The expression of many gene products required during the early stages of Bacillus subtilis sporulation is regulated by sinIR operon proteins. Transcription of sinIR from the P1 promoter is induced atExpand
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Influence of pharmaceutical residues on the structure of activated sludge bacterial communities in wastewater treatment bioreactors.
Concern is growing over contamination of the environment with pharmaceuticals because of their widespread use and incomplete removal during wastewater treatment, where microorganisms drive the keyExpand
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Ammonium supply rate influences archaeal and bacterial ammonia oxidizers in a wetland soil vertical profile.
Oxidation of ammonia, the first step in nitrification, is carried out in soil by bacterial and archaeal ammonia oxidizers and recent studies suggest possible selection for the latter in low-ammoniumExpand
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Private link between signal and response in Bacillus subtilis quorum sensing
Significance In a social process called “quorum sensing” (QS) bacteria secrete and share signaling molecules that bind to specific receptors and induce adaptive responses within the population. WeExpand
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Microbial activity and community structure in two drained fen soils in the Ljubljana Marsh
Fen peatlands are specific wetland ecosystems containing high soil organic carbon (SOC). There is a general lack of knowledge about the microbial communities that abound in these systems. We examinedExpand
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