Bioremediation of soils co-contaminated with heavy metals and 2,4,5-trichlorophenol by fruiting body of Clitocybe maxima

Liu, Hongying; Guo, Shanshan; Jiao, Kai; Hou, Jing; Xie, Han; Xu, Heng

doi:10.1016/j.jhazmat.2015.04.004

Cited by 73 publications

(22 citation statements)

References 55 publications

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“…A limited number of studies have indicated the possibility of using macrofungi for soil heavy metal removal. In a study to test the ability of Clitocybe maximain to degrade trichlorophenol, Liu et al [13] found that the fruiting body of the strain was able to absorb a considerable amount of heavy metals. Similar results were found in the remediation of Cd-phenanthrene co-contaminated soil by Pleurotus cornucopiae [14].…”

Section: Introductionmentioning

confidence: 99%

Mycoextraction: Rapid Cadmium Removal by Macrofungi-Based Technology from Alkaline Soil

Chen

Wang

Hou³

et al. 2018

Minerals

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Fungi are promising materials for soil metal bioextraction and thus biomining. Here, a macrofungi-based system was designed for rapid cadmium (Cd) removal from alkaline soil. The system realized directed and rapid fruiting body development for subsequent biomass harvest. The Cd removal efficiency of the system was tested through a pot culture experiment. It was found that aging of the added Cd occurred rapidly in the alkaline soil upon application. During mushroom growth, the soil solution remained considerably alkaline, though a significant reduction in soil pH was observed in both Cd treatments. Cd and dissolved organic carbon (DOC) in soil solution generally increased over time and a significant correlation between them was detected in both Cd treatments, suggesting that the mushroom‒substratum system has an outstanding ability to mobilize Cd in an alkaline environment. Meanwhile, the growth of the mushrooms was not affected relative to the control. The estimated Cd removal efficiency of the system was up to 12.3% yearly thanks to the rapid growth of the mushroom and Cd enrichment in the removable substratum. Transcriptomic analysis showed that gene expression of the fruiting body presented considerable differences between the Cd treatments and control. Annotation of the differentially expressed genes (DEGs) indicated that cell wall sorption, intracellular binding, and vacuole storage may account for the cellular Cd accumulation. In conclusion, the macrofungi-based technology designed in this study has the potential to become a standalone biotechnology with practical value in soil heavy metal removal, and continuous optimization may make the system useful for biomining.

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Section: Introductionmentioning

confidence: 99%

Mycoextraction: Rapid Cadmium Removal by Macrofungi-Based Technology from Alkaline Soil

Chen

Wang

Hou³

et al. 2018

Minerals

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“…However, biological methods are increasingly attracting the attention of scientists as they are more environmentally benign than other strategies [14,15,16,17,18]. In biological methods, agents such as microorganisms, plants or enzymes from different origins are used to degrade different classes of organic pollutants [19,20,21,22].…”

Section: Introductionmentioning

confidence: 99%

Differential Degradation and Detoxification of an Aromatic Pollutant by Two Different Peroxidases

et al. 2017

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Enzymatic degradation of organic pollutants is a new and promising remediation approach. Peroxidases are one of the most commonly used classes of enzymes to degrade organic pollutants. However, it is generally assumed that all peroxidases behave similarly and produce similar degradation products. In this study, we conducted detailed studies of the degradation of a model aromatic pollutant, Sulforhodamine B dye (SRB dye), using two peroxidases—soybean peroxidase (SBP) and chloroperoxidase (CPO). Our results show that these two related enzymes had different optimum conditions (pH, temperature, H2O2 concentration, etc.) for efficiently degrading SRB dye. High-performance liquid chromatography and liquid chromatography –mass spectrometry analyses confirmed that both SBP and CPO transformed the SRB dye into low molecular weight intermediates. While most of the intermediates produced by the two enzymes were the same, the CPO treatment produced at least one different intermediate. Furthermore, toxicological evaluation using lettuce (Lactuca sativa) seeds demonstrated that the SBP-based treatment was able to eliminate the phytotoxicity of SRB dye, but the CPO-based treatment did not. Our results show, for the first time, that while both of these related enzymes can be used to efficiently degrade organic pollutants, they have different optimum reaction conditions and may not be equally efficient in detoxification of organic pollutants.

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“…The toxicity of Cr(VI) species, which is one of the most notorious contaminants with toxic, carcinogenic, mobile and of environmental concern, is one hundred times higher than Cr(III) [22,23]. Actually, current pollution in aquatic environments is not either organic pollutant or heavy metal alone [24,25], but those mixed pollution containing organic compounds and heavy metals instead [26,27]. Hence, it is of great importance to explore how to simultaneously remove the co-existed heavy metals and organic compounds from wastewater effectively, which has particular significance to both pollution control and remediation.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous removal of Cr(VI) and phenol by persulfate activated with bentonite-supported nanoscale zero-valent iron: Reactivity and mechanism

Diao

Chen

et al. 2016

Journal of Hazardous Materials

141

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Bioremediation of soils co-contaminated with heavy metals and 2,4,5-trichlorophenol by fruiting body of Clitocybe maxima

Cited by 73 publications

References 55 publications

Mycoextraction: Rapid Cadmium Removal by Macrofungi-Based Technology from Alkaline Soil

Mycoextraction: Rapid Cadmium Removal by Macrofungi-Based Technology from Alkaline Soil

Differential Degradation and Detoxification of an Aromatic Pollutant by Two Different Peroxidases

Simultaneous removal of Cr(VI) and phenol by persulfate activated with bentonite-supported nanoscale zero-valent iron: Reactivity and mechanism

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