Phosphate promotes uranium (VI) adsorption in <i>Staphylococcus aureus </i>
LZ-01

Zou, Lian; Chen, Ziqiu; Zhang, X.; Liu, Pu; Li, X.

doi:10.1111/lam.12310

Cited by 11 publications

(2 citation statements)

References 31 publications

(68 reference statements)

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“…Zou et al . () observed that 20 m m phosphate promoted U(VI) uptake by Staphylococcus aureus LZ‐01. The transmission electron microscopy image showed the precipitates of uranium and phosphate on the cell walls.…”

Section: Introductionmentioning

confidence: 97%

Cadmium adsorption on bacteria–mineral mixtures: effect of naturally occurring ligands

Chen

Cai

et al. 2016

European J Soil Science

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The mobility and fate of heavy metals in soil depend strongly on their interactions with naturally occurring ligands and sorbents such as bacteria–mineral complexes, which are among the most important bioactive components in soil. However, the mechanism through which the various ligands affect heavy metal adsorption on bacteria–mineral complexes remains unclear. In this study, the effects of several inorganic and organic ligands on Cd adsorption on Pseudomonas putida–montmorillonite (Mont) and Pseudomonas putida–goethite mixtures were examined with measurements of macroscopic sorption. The results showed that citrate and humic acid enhanced Cd adsorption on P. putida–Mont and P. putida–goethite. Conversely, oxalate suppressed Cd adsorption. Phosphate showed both limited and increased Cd adsorption, depending on the types of mixture. Cadmium adsorption was increased on P. putida–goethite, but was reduced on P. putida–Mont. This study provided the first compelling evidence that the effects of ligands on bacteria–mineral mixtures cannot simply be inferred from the effects on the individual components of such mixtures. The positive, neutral or negative effects also depend on the types and concentrations of ligands as well as the mineral species that form the bacteria–mineral mixtures. Highlights Little information is available on metal adsorption at organo–mineral interfaces affected by ligands. Effect of ligands on metal adsorption to bacteria–mineral complexes is elucidated. Ligands can form surface Cd complexes on the mineral component of the bacteria–mineral mixture. The effects of ligands on the mixture depend on the interactions between individual components.

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Section: Introductionmentioning

confidence: 97%

Cadmium adsorption on bacteria–mineral mixtures: effect of naturally occurring ligands

Chen

Cai

et al. 2016

European J Soil Science

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“…ferrooxidans and Acidovorax facilis are also reported to adsorb uranium [56] [57]. Even non-uranium-reducers or organisms not found in uranium contaminated environments, such as Saccharomyces cerevisiae and Staphylococcus aureus LZ-01, can adsorb uranium efficiently [79] [83]. The chemical species of the adsorbed uranium varies and reflects the state of uranium in the environment.…”

Section: Sorptionmentioning

confidence: 99%

Uranium Bio-Transformations: Chemical or Biological Processes?

Majumder¹,

Wall²

2017

OJIC

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Uranium bio-transformations are the many and varying types of interactions that microbes can have with uranium encountered in their environment. In this review, bio-transformations, including reduction, oxidation, respiration, sorption, mineralization, accumulation, precipitation, biomarkers, and sensors are defined and discussed. Consensus and divergences are noted in bioavailability, mechanism of uranium reduction, environment, metabolism and the type of organism. The breadth of organisms with characterized bio-trans formations is also cataloged and discussed. We further debate if uranium biotransformations provide bio-protection or bio-benefit to the microbe and highlight the need for more work in the field to understand if microbes use uranium reduction for energy gain and growth, as having the ability is separate from exercising it. The presentation centers on the fundamental drivers for these processes with an additional exposition of the essential contribution of inorganic chemistry techniques to the molecular characterization of these biological processes.

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Ultrafast Recovery of Uranium from Seawater by Bacillus velezensis Strain UUS‐1 with Innate Anti‐Biofouling Activity

Yuan

Yang

et al. 2019

Advanced Science

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Highly‐efficient recovery of uranium from seawater is of great concern in the growing demand for nuclear energy. Bacteria are thought to be potential alternatives for uranium recovery. Herein, a Bacillus velezensis strain, UUS‐1, with highly‐efficient uranium immobilization capacity is isolated and is used in the recovery of uranium from seawater. The strain exhibits time‐dependent uranium recovery capacity and only immobilizes uranium after growing for 12 h. The carboxyl group together with the amino group inside the bacterial cells, but not previously identified phosphate group, are essential for uranium immobilization. UUS‐1 shows broad‐spectrum antimicrobial activity by producing diverse antimicrobial metabolites, which endows the strain with innate resistance to the biofouling of marine microorganisms. Based on the dry weight of the initially used bacterial cultures, UUS‐1 concentrates uranium by 6.26 × 105 times and reaches the high immobilization capacity of 9.46 ± 0.39 mg U g−1 bacterial cultures in real seawater within 48 h, which is the fastest uranium immobilization capacity observed from real seawater. Overall considering the ultrafast and highly‐efficient uranium recovery capacity and the innate anti‐biofouling activity, UUS‐1 is a promising alternative for uranium recovery from seawater.

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Phosphate promotes uranium (VI) adsorption in Staphylococcus aureus LZ-01

Cited by 11 publications

References 31 publications

Cadmium adsorption on bacteria–mineral mixtures: effect of naturally occurring ligands

Cadmium adsorption on bacteria–mineral mixtures: effect of naturally occurring ligands

Uranium Bio-Transformations: Chemical or Biological Processes?

Ultrafast Recovery of Uranium from Seawater by Bacillus velezensis Strain UUS‐1 with Innate Anti‐Biofouling Activity

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