Bioremediation of cadmium- and zinc-contaminated soil using Rhodobacter sphaeroides

Peng, Weihua; Li, Xiaomin; Song, Jun; Jiang, Wei; Liu, Yingying; Fan, Wenhong

doi:10.1016/j.chemosphere.2018.01.017

Cited by 120 publications

(27 citation statements)

References 45 publications

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“…Biopiles improved soil properties and reduced the solubility of contaminants [26] Zn, Cu Bioremediation using Rhodobacter sphaeroides [27] Microbial electrochemical system (MES)…”

Section: Type Of Remediation Pollutantmentioning

confidence: 99%

Introductory Chapter: Soil Contamination and Alternatives for Sustainable Development

Vázquez-Luna¹,

Cuevas-Díaz²

2019

Soil Contamination and Alternatives for Sustainable Development

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“…Biopiles improved soil properties and reduced the solubility of contaminants [26] Zn, Cu Bioremediation using Rhodobacter sphaeroides [27] Microbial electrochemical system (MES)…”

Section: Type Of Remediation Pollutantmentioning

confidence: 99%

Introductory Chapter: Soil Contamination and Alternatives for Sustainable Development

Vázquez-Luna¹,

Cuevas-Díaz²

2019

Soil Contamination and Alternatives for Sustainable Development

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“…Many remediation techniques, such as chemical immobilization, electrokinetic extraction, phytoremediation, and bioremediation, have been proposed for soils contaminated with heavy metals [8]. Among these technologies, bioremediation is considered an innovative and promising remediation method based on its cost effectiveness and low environmental impact [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

An operon consisting of a P-type ATPase gene and a transcriptional regulator gene responsible for cadmium resistances in Bacillus vietamensis 151–6 and Bacillus marisflavi 151–25

Ding

et al. 2020

BMC Microbiol

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Background: Cadmium (Cd) is a severely toxic heavy metal to most microorganisms. Many bacteria have developed Cd 2+ resistance. Results: In this study, we isolated two different Cd 2+ resistance Bacillus sp. strains, Bacillus vietamensis 151-6 and Bacillus marisflavi 151-25, which could be grown in the presence of Cd 2+ at concentration up to 0.3 mM and 0.8 mM, respectively. According to the genomic sequencing, transcriptome analysis under cadmium stress, and other related experiments, a gene cluster in plasmid p25 was found to be a major contributor to Cd 2+ resistance in B. marisflavi 151-25. The cluster in p25 contained orf4802 and orf4803 which encodes an ATPase transporter and a transcriptional regulator protein, respectively. Although 151-6 has much lower Cd 2+ resistance than 151-25, they contained similar gene cluster, but in different locations. A gene cluster on the chromosome containing orf4111, orf4112 and orf4113, which encodes an ATPase transporter, a cadmium efflux system accessory protein and a cadmium resistance protein, respectively, was found to play a major role on the Cd 2+ resistance for B. vietamensis 151-6. Conclusions: This work described cadmium resistance mechanisms in newly isolated Bacillus vietamensis 151-6 and Bacillus marisflavi 151-25. Based on homologies to the cad system (CadA-CadC) in Staphylococcus aureus and analysis of transcriptome under Cd 2+ induction, we inferred that the mechanisms of cadmium resistance in B. marisflavi 151-25 was as same as the cad system in S. aureus. Although Bacillus vietamensis 151-6 also had the similar gene cluster to B. marisflavi 151-25 and S. aureus, its transcriptional regulatory mechanism of cadmium resistance was not same. This study explored the cadmium resistance mechanism for B. vietamensis 151-6 and B. marisflavi 151-25 and has expanded our understanding of the biological effects of cadmium.

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“…The binding behaviour between HAs and heavy metals, particularly metals besides Cu(II), has not been investigated sufficiently. As Cd(II) and Zn(II) pollution in soil is very serious, particularly around the lead-zinc mines in China [27,28], using huge amounts of compost products from kitchen waste, pig manure, and green waste is a potential solution to repair Cd-and Zn-contaminated soils. Therefore, an assessment of binding capacities between HAs derived from composts and Cd(II) and Zn(II) is necessary to help us understand the binding mechanisms between them.…”

Section: Introductionmentioning

confidence: 99%

Insight into the cadmium and zinc binding potential of humic acids derived from composts by EEM spectra combined with PARAFAC analysis

et al. 2020

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AbstractTo investigate the characteristics of humic acids (HAs) and the combined effects of HAs on heavy metals, three HAs derived from kitchen waste compost (KW), pig manure compost (PM), and green waste compost (GW) were exposed to Cd(II) and Zn(II). The elemental contents and functional groups of HAs were different due to different raw materials. Fulvic-, humic-like content C1, humic-like content C4, and two protein-like contents C2 and C3 were identified in three HAs by EEM-PARAFAC analysis. The effects of HAs on heavy metals were associated with the metal species and HA source. Our results reveal that titrating Cd(II) caused stronger fluorescence quenching compared to titrating Zn(II) for all HAs. C1 and C4 of KW-HAs and PM-HAs showed fluorescence quenching after Cd(II) was added, whereas negligible fluorescence quenching was found when Zn(II) was added. In addition, C1 and C4 in the GW-HAs did not show obvious fluorescence quenching regardless of whether Cd(II) or Zn(II) was added. C3 in all HAs caused significant fluorescence quenching, suggesting that C3 plays an important role affecting the mobility of heavy metals. Consequently, these results suggest that HAs from KW and PM have greater potential for Cd-contaminated soil remediation than those from GW.

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Bioremediation of cadmium- and zinc-contaminated soil using Rhodobacter sphaeroides

Cited by 120 publications

References 45 publications

Introductory Chapter: Soil Contamination and Alternatives for Sustainable Development

Introductory Chapter: Soil Contamination and Alternatives for Sustainable Development

An operon consisting of a P-type ATPase gene and a transcriptional regulator gene responsible for cadmium resistances in Bacillus vietamensis 151–6 and Bacillus marisflavi 151–25

Insight into the cadmium and zinc binding potential of humic acids derived from composts by EEM spectra combined with PARAFAC analysis

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