Draft genome sequence of <i>Pseudomonas</i> sp. A46 isolated from mercury‐contaminated wastewater

Lo, Kai-Hung; Lu, Che-Wei; Liu, Fuguo; Kao, Chih‐Ming; Chen, Ssu Ching

doi:10.1002/jobm.202200106

Cited by 4 publications

(2 citation statements)

References 39 publications

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“…The copG gene in both genomes encoded a copper amine oxidase, which was responsible for copper resistance as well [ 87 ]. Both strains were potentially tolerant of the mercury ions due to two different mechanisms: MerA enzyme is a widespread mercuric ion reductase (EC: 1.16.1.1), which is highly expressed under mercury stress in a number of prokaryotic organisms [ 88 , 89 , 90 ]; and ZntA protein is a lead-, cadmium-, zinc-, and mercury-transporting ATPase, which is found in phylogenetically closely related bacteria of the Ensifer / Sinorhizobium clade as well [ 8 , 91 ]. Finally, tolerance of the isolated strains to the chromium ions was possible due to the presence of the chrAF genes responsible for chromate transport (ChrA is a chromate efflux transporter) in their genomes [ 92 , 93 ].…”

Section: Resultsmentioning

confidence: 99%

Genome Analysis and Potential Ecological Functions of Members of the Genus Ensifer from Subsurface Environments and Description of Ensifer oleiphilus sp. nov.

Ershov,

Babich,

Grouzdev

et al. 2023

Microorganisms

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The current work deals with genomic analysis, possible ecological functions, and biotechnological potential of two bacterial strains, HO-A22T and SHC 2-14, isolated from unique subsurface environments, the Cheremukhovskoe oil field (Tatarstan, Russia) and nitrate- and radionuclide-contaminated groundwater (Tomsk region, Russia), respectively. New isolates were characterized using polyphasic taxonomy approaches and genomic analysis. The genomes of the strains HO-A22T and SHC 2-14 contain the genes involved in nitrate reduction, hydrocarbon degradation, extracellular polysaccharide synthesis, and heavy metal detoxification, confirming the potential for their application in various environmental biotechnologies. Genomic data were confirmed by cultivation studies. Both strains were found to be neutrophilic, chemoorganotrophic, facultatively anaerobic bacteria, growing at 15–33 °C and 0–1.6% NaCl (w/v). The 16S rRNA gene sequences of the strains were similar to those of the type strains of the genus Ensifer (99.0–100.0%). Nevertheless, genomic characteristics of strain HO-A22T were below the thresholds for species delineation: the calculated average nucleotide identity (ANI) values were 83.7–92.4% (<95%), and digital DNA–DNA hybridization (dDDH) values were within the range of 25.4–45.9% (<70%), which supported our conclusion that HO-A22T (=VKM B-3646T = KCTC 92427T) represented a novel species of the genus Ensifer, with the proposed name Ensifer oleiphilus sp. nov. Strain SHC 2-14 was assigned to the species ‘Ensifer canadensis’, which has not been validly published. This study expanded the knowledge about the phenotypic diversity among members of the genus Ensifer and its potential for the biotechnologies of oil recovery and radionuclide pollution treatment.

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Section: Resultsmentioning

confidence: 99%

Genome Analysis and Potential Ecological Functions of Members of the Genus Ensifer from Subsurface Environments and Description of Ensifer oleiphilus sp. nov.

Ershov,

Babich,

Grouzdev

et al. 2023

Microorganisms

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“…At this level of genus, Pseudomonas, Nocardioides, Pseudonocardia, and Pseudarthrobacter are the dominant microbial communities. It has been shown that these bacteria have good resistance to heavy metals, that they coexist well with heavy metals, and that these bacteria are often isolated in a variety of environments heavily contaminated with heavy metals [72,77,78]. In addition, other studies have shown that Pseudarthrobacter is not only enriched in heavy metal-contaminated environments, but also plays a key role in promoting plant growth, and therefore, this bacterium also has great potential for application in bioremediation at VTM mining sites [79,80].…”

Section: Microbial Community Responsesmentioning

confidence: 99%

Impact of Vanadium–Titanium–Magnetite Mining Activities on Endophytic Bacterial Communities and Functions in the Root Systems of Local Plants

Xiong,

Zhang,

Chen

et al. 2024

Genes

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This study utilized 16S rRNA high-throughput sequencing technology to analyze the community structure and function of endophytic bacteria within the roots of three plant species in the vanadium–titanium–magnetite (VTM) mining area. The findings indicated that mining activities of VTM led to a notable decrease in both the biodiversity and abundance of endophytic bacteria within the root systems of Eleusine indica and Carex (p < 0.05). Significant reductions were observed in the populations of Nocardioides, concurrently with substantial increments in the populations of Pseudomonas (p < 0.05), indicating that Pseudomonas has a strong adaptability to this environmental stress. In addition, β diversity analysis revealed divergence in the endophytic bacterial communities within the roots of E. indica and Carex from the VTM mining area, which had diverged to adapt to the environmental stress caused by mining activity. Functional enrichment analysis revealed that VTM mining led to an increase in polymyxin resistance, nicotinate degradation I, and glucose degradation (oxidative) (p < 0.05). Interestingly, we found that VTM mining did not notably alter the endophytic bacterial communities or functions in the root systems of Dodonaea viscosa, indicating that this plant can adapt well to environmental stress. This study represents the primary investigation into the influence of VTM mining activities on endophytic bacterial communities and the functions of nearby plant roots, providing further insight into the impact of VTM mining activities on the ecological environment.

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Unboxing PGPR-mediated management of abiotic stress and environmental cleanup: what lies inside?

Kumar,

Ali,

Sharma

et al. 2024

Environ Sci Pollut Res

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Draft genome sequence of Pseudomonas sp. A46 isolated from mercury‐contaminated wastewater

Cited by 4 publications

References 39 publications

Genome Analysis and Potential Ecological Functions of Members of the Genus Ensifer from Subsurface Environments and Description of Ensifer oleiphilus sp. nov.

Genome Analysis and Potential Ecological Functions of Members of the Genus Ensifer from Subsurface Environments and Description of Ensifer oleiphilus sp. nov.

Impact of Vanadium–Titanium–Magnetite Mining Activities on Endophytic Bacterial Communities and Functions in the Root Systems of Local Plants

Unboxing PGPR-mediated management of abiotic stress and environmental cleanup: what lies inside?

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