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Nitrobacter winogradskyi

ABSTRACT: Quorum Quenching of Nitrobacter winogradskyi Suggests that Quorum Sensing Regulates Fluxes of Nitrogen Oxide(s) during Nitrification.

PROVIDER: PRJNA335758 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR3981100_1.fastq.gz	Fastqsanger.gz
	SRR3981100_2.fastq.gz	Fastqsanger.gz
	SRR3981101_1.fastq.gz	Fastqsanger.gz
	SRR3981101_2.fastq.gz	Fastqsanger.gz
	SRR3981094_1.fastq.gz	Fastqsanger.gz

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Quorum Quenching of Nitrobacter winogradskyi Suggests that Quorum Sensing Regulates Fluxes of Nitrogen Oxide(s) during Nitrification.

Project description:Quorum sensing (QS) is a widespread process in bacteria used to coordinate gene expression with cell density, diffusion dynamics, and spatial distribution through the production of diffusible chemical signals. To date, most studies on QS have focused on model bacteria that are amenable to genetic manipulation and capable of high growth rates, but many environmentally important bacteria have been overlooked. For example, representatives of proteobacteria that participate in nitrification, the aerobic oxidation of ammonia to nitrate via nitrite, produce QS signals called acyl-homoserine lactones (AHLs). Nitrification emits nitrogen oxide gases (NO, NO2, and N2O), which are potentially hazardous compounds that contribute to global warming. Despite considerable interest in nitrification, the purpose of QS in the physiology/ecology of nitrifying bacteria is poorly understood. Through a quorum quenching approach, we investigated the role of QS in a well-studied AHL-producing nitrite oxidizer, Nitrobacter winogradskyi.We added a recombinant AiiA lactonase to N. winogradskyi cultures to degrade AHLs to prevent their accumulation and to induce a QS-negative phenotype and then used mRNA sequencing (mRNA-Seq) to identify putative QS-controlled genes. Our transcriptome analysis showed that expression of nirK and nirK cluster genes (ncgABC) increased up to 19.9-fold under QS-proficient conditions (minus active lactonase). These data led to us to query if QS influenced nitrogen oxide gas fluxes in N. winogradskyi. Production and consumption of NOx increased and production of N2O decreased under QS-proficient conditions. Quorum quenching transcriptome approaches have broad potential to identify QS-controlled genes and phenotypes in organisms that are not genetically tractable.

2016-10-05 | GSE84969 | GEO

Nitrobacter winogradskyi

Project description:Nitrobacter winogradskyi transcriptomic response to ammonia

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Nitrobacter winogradskyi strain:DSM 10237

Project description:Nitrobacter winogradskyi Raw sequence reads

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Nitrobacter winogradskyi strain:Nb-106

Project description:Nitrobacter winogradskyi Nb-106 genome sequencing

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Nitrobacter winogradskyi strain:Nb-102

Project description:Nitrobacter winogradskyi Nb-102 genome sequencing

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Nitrobacter winogradskyi strain:NBRC 14297

Project description:Nitrobacter winogradskyi NBRC 14297 genome sequencing project

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mRNASeq of Nitrosomonas europaea and Nitrobacter winogradskyi

Project description:N.europaea and N. winogradskyi were grown singly and in co-culture in chemostat to probe for transcriptome diffrences between the two growth conditions.

2014-12-03 | GSE58052 | GEO

mRNASeq of Nitrosomonas europaea and Nitrobacter winogradskyi

Project description:mRNASeq of Nitrosomonas europaea and Nitrobacter winogradskyi

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mRNASeq of Nitrosomonas europaea and Nitrobacter winogradskyi

Project description:N.europaea and N. winogradskyi were grown singly and in co-culture in chemostat to probe for transcriptome diffrences between the two growth conditions. The comparison was done in chemostats. Single cultures maintained with 60 mM ammonium or nitrate, as appropiate, were compared to co-culture maintained with 60 mM ammonium.

2014-12-03 | E-GEOD-58052 | biostudies-arrayexpress

Nitrite-fed bioreactor communities with Nitrobacter winogradskyi

Project description:Amplicon (16S) and shotgun metagenomic sequencing data from nitrite-fed bioreactor communities growing with Nitrobacter winogradskyi.

| PRJEB36484 | ENA

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