Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Molecular mechanism of zero valent iron-enhanced microbial azo reduction in Shewanella decolorationis S12

ABSTRACT: Molecular mechanism of zero valent iron-enhanced microbial azo reduction in Shewanella decolorationis S12

PROVIDER: PRJNA673394 | ENA |

REPOSITORIES: ENA

ACCESS DATA

Json Xml

Similar Datasets

Molecular mechanism of zero valent iron-enhanced microbial azo reduction in Shewanella decolorationis S12

Project description:Here, we established a successive Fe0-enhanced microbe system to remove azo dye (a typical organic pollutant) by Shewanella decolorationis S12 (S. decolorationis S12, an effective azo dye degradation bacterium) and examined the gene expression time course (10, 30, 60, and 120 min) in whole genome transcriptional level. Comparing with the treatment without ZVI, approximately 8% genes affiliated with 10 different gene expression profiles in S. decolorationis S12 were significantly changed in 120 min during the ZVI-enhanced microbial azo reduction. Intriguingly, MarR transcriptional factor might play a vital role in regulating ZVI-enhanced azo reduction in the aspect of energy production, iron homeostasis, and detoxification. Further investigation showed that induced [Ni-Fe] H2ase genes (hyaABCDEF) and azoreductase genes (mtrABC-omcA) contributed to ZVI-enhanced energy production, while reduced iron uptake (hmuVCB and feoAB), induced sulfate assimilation (cysPTWA) and cysteine biosynthesis (cysM) related genes were essential to iron homeostasis and detoxification. This study disentangles underlying mechanisms of ZVI-enhanced azo reduction in S. decolorationis S12 and lays a foundation for further optimization of integrated ZVI-microbial system for efficient organic pollution treatment.

2021-10-01 | GSE160493 | GEO

Shewanella decolorationis S12

Project description:Shewanella decolorationis S12 Genome sequencing and assembly

| PRJNA210345 | ENA

Respiration and growth of Shewanella decolorationis S12 with an Azo compound as the sole electron acceptor.

Project description: Not available

| S-EPMC1797134 | biostudies-literature

Generation of zero-valent sulfur from dissimilatory sulfate reduction in sulfate-reducing bacteria

Project description:We report a new DSR pathway that directly generates zero-valent sulfur (ZVS) in phylogenetically diverse SRB.

2023-04-27 | E-MTAB-12239 | biostudies-arrayexpress

Shewanella decolorationis

Project description:Shewanella decolorationis overview

| PRJNA225957 | ENA

Novosphingobium decolorationis

Project description:Novosphingobium decolorationis overview

| PRJNA844456 | ENA

Goethite Hinders Azo Dye Bioreduction by Blocking Terminal Reductive Sites on the Outer Membrane of <i>Shewanella decolorationis</i> S12.

Project description: Not available

| S-EPMC6604703 | biostudies-literature

Novosphingobium decolorationis

Project description:Novosphingobium decolorationis Genome sequencing and assembly

| PRJNA637500 | ENA

Adaptive laboratory evolution restores solvent tolerance in the plasmid-cured Pseudomonas putida S12; a global transcriptional analysis

Project description:Pseudomonas putida S12 is an inherently solvent-tolerant strain and constitutes a promising platform for biotechnology applications in whole-cell biocatalysis of aromatic compounds. The genome of P. putida S12 consists of a 5.8 Mbp chromosome and a 580 kbp megaplasmid pTTS12. pTTS12 encodes several genes which enable the tolerance to various stress conditions, including the main solvent efflux pump SrpABC. Removal (curing) of megaplasmid pTTS12 and subsequent loss of solvent efflux pump SrpABC caused a significant reduction in solvent tolerance of the resulting strain. In this study, we succeeded in restoring solvent tolerance in the megaplasmid-cured P. putida S12 using adaptive laboratory evolution (ALE) and molecular analysis to investigate the intrinsic solvent tolerance of P. putida S12. RNA-seq was performed to study the global transcriptomic response of the solvent-adapted plasmid-cured P. putida S12 in the presence of toluene. This analysis revealed the downregulation of ATP synthase, flagella and other RND efflux pumps, which indicates the importance of maintaining proton motive force during solvent stress.

2021-02-24 | GSE144045 | GEO

Adaptive Responses of Shewanella decolorationis to the Toxic Organic Extracellular Electron Acceptor in Anaerobic Respiration

Project description:Bacterial anaerobic respiration using extracellular electron acceptor plays a predominant role in global biogeochemical cycles. However, the bacterial adaptive mechanisms to the toxic organic pollutant as the extracellular electron acceptor during anaerobic respiration is not clear, which limits us to optimize the strategies for the bioremediation of contaminated environment. Here, we report the physiological characteristics and the global gene expression of an ecologically successful bacterium Shewanella decolorationis S12 when using a typical toxic organic pollutant, amaranth, as the extracellular electron acceptor. Our results revealed that filamentous shift (the cells stretched to fiber-like shapes as long as 18 μm) occurred under amaranth stress. Persistent stress led to higher filamentous cell rate and decolorization ability in subcultural cells compared with parental strains. Additionally, the expression of genes involved in cell division, chemotaxi system, energy conservation, damage repair, and material transport in filamentous cells were significantly stimulated. The detailed roles of some genes with significantly elevated expressions in filamentous cells were identified by site-directed mutagenesis, such as the outer membrane porin genes ompA and ompW, the cytochrome C genes arpC and arpD, the global regulatory factor gene rpoS and methyl-accepting chemotaxis proteins genes SHD_2793 and SHD_0015. Finally, a conceptual model was proposed to help deepen our insights into both the bacterial survival strategy when toxic organics were present, and the mechanisms in which these toxic organics were biodegraded as the extracellular electron acceptors.

2019-06-18 | GSE64532 | GEO

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data