Shewanella decolorationis
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA225957 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| Other | ||||
| AXZL01.dat.gz | Other | |||
| AXZL01.fasta.gz | Fasta.gz | |||
| AXZL01.master.dat | Other | |||
| BSOL01.dat.gz | Other |
Items per page: 5 1 - 5 of 69 |
Similar Datasets
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
Project description:Shewanella decolorationis S12 Genome sequencing and assembly
| PRJNA210345 | ENA
Project description:De novo sequencing and analysis for Strain NBRC 103170 of Shewanella decolorationis
| PRJDB10354 | ENA
Project description:Shewanella decolorationis strain:4 | isolate:4 Genome sequencing
| PRJNA939925 | ENA
Project description:Adaptive Responses of Shewanella decolorationis to the Toxic Organic Extracellular Electron Acceptor in Anaerobic Respiration
| PRJNA271261 | ENA
Project description:Novosphingobium decolorationis overview
| PRJNA844456 | ENA
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
Project description:The genus Shewanella is well known for its genetic diversity, its outstanding respiratory capacity, and its high potential for bioremediation. Here, a novel strain isolated from sediments of the Indian Ocean was characterized. A 16S rRNA analysis indicated that it belongs to the species Shewanella decolorationis It was named Shewanella decolorationis LDS1. This strain presented an unusual ability to grow efficiently at temperatures from 24°C to 40°C without apparent modifications of its metabolism, as shown by testing respiratory activities or carbon assimilation, and in a wide range of salt concentrations. Moreover, S. decolorationis LDS1 tolerates high chromate concentrations. Indeed, it was able to grow in the presence of 4 mM chromate at 28°C and 3 mM chromate at 40°C. Interestingly, whatever the temperature, when the culture reached the stationary phase, the strain reduced the chromate present in the growth medium. In addition, S. decolorationis LDS1 degrades different toxic dyes, including anthraquinone, triarylmethane, and azo dyes. Thus, compared to Shewanella oneidensis, this strain presented better capacity to cope with various abiotic stresses, particularly at high temperatures. The analysis of genome sequence preliminary data indicated that, in contrast to S. oneidensis and S. decolorationis S12, S. decolorationis LDS1 possesses the phosphorothioate modification machinery that has been described as participating in survival against various abiotic stresses by protecting DNA. We demonstrate that its heterologous production in S. oneidensis allows it to resist higher concentrations of chromate.IMPORTANCEShewanella species have long been described as interesting microorganisms in regard to their ability to reduce many organic and inorganic compounds, including metals. However, members of the Shewanella genus are often depicted as cold-water microorganisms, although their optimal growth temperature usually ranges from 25 to 28°C under laboratory growth conditions. Shewanella decolorationis LDS1 is highly attractive, since its metabolism allows it to develop efficiently at temperatures from 24 to 40°C, conserving its ability to respire alternative substrates and to reduce toxic compounds such as chromate or toxic dyes. Our results clearly indicate that this novel strain has the potential to be a powerful tool for bioremediation and unveil one of the mechanisms involved in its chromate resistance.
| S-EPMC6715848 | biostudies-literature
Project description:Novosphingobium decolorationis Genome sequencing and assembly
| PRJNA637500 | ENA
Project description:Molecular mechanism of zero valent iron-enhanced microbial azo reduction in Shewanella decolorationis S12
| PRJNA673394 | ENA