Metal accumulation and detoxification mechanisms in mycorrhizal Betula pubescens

Fernández-Fuego, D.; Bertrand, A.; González, A.

doi:10.1016/j.envpol.2017.07.072

Cited by 33 publications

(20 citation statements)

References 52 publications

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“…Previous studies suggested that ECM plants could prevent upward transport of metals, thus ameliorating metal toxicity [49,50]. Our experimental data (Figure 4d) supported this in P. massoniana seedlings grown in the −Al treatment.…”

Section: Accumulation and Translocation Of Al In Ecm P Massoniana Sesupporting

confidence: 88%

“…Nevertheless, the Al translocation factor increased in seedlings that were inoculated with both L. bicolor 270 and L. bicolor S238A in the +Al treatment (Figure 4d). Similar results were found as a high root-to-shoot translocation rate for both Zn and Mn in metal-tolerant birch growing in heavy-metal polluted soils [50]. According to Liu and Liu [55], P. massoniana is a moderately Al-resistant plant and can be stimulated by <0.15 mM Al; L. bicolor inoculation may improve its capacity to adapt to higher concentrations of Al in the soil, or increase the threshold of active Al that the host is able to tolerate [51].…”

Section: Accumulation and Translocation Of Al In Ecm P Massoniana Sesupporting

confidence: 86%

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Accumulation and Translocation of Phosphorus, Calcium, Magnesium, and Aluminum in Pinus massoniana Lamb. Seedlings Inoculated with Laccaria bicolor Growing in an Acidic Yellow Soil

Wang

et al. 2019

Forests

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Research Highlights: We demonstrate that ectomycorrhizal (ECM) fungi improve plant aluminum (Al)-tolerance in the field and Laccaria bicolor S238A is a promising ECM isolate. Furthermore, we interpret the underlying nutritional mechanism that ECM inoculation facilitates aboveground biomass production as well as nutrients accumulation and translocation. Background and Objectives: Al toxicity is a primary limiting factor for plants growing in acidic soils. Hydroponic/sand culture studies have shown that some ECM fungi could enhance plant Al-tolerance. However, the underlying mechanisms of ECM fungi in improving plant Al-tolerance in the field are still unknown. To fill this knowledge gap, the present study aimed to examine roles of ECM inoculation in biomass production, accumulation and translocation of nutrients and Al in the host plant grown in the field under Al treatment. Materials and Methods: 4-week-old Pinus massoniana seedlings were inoculated with three Laccaria bicolor isolates (L. bicolor 270, L. bicolor S238A or L. bicolor S238N) and grown in an acidic yellow soil under 1.0 mM Al treatment for 12 weeks in the field. Biomass production, accumulation and translocation of P, Ca, Mg, and Al were investigated in these 16-week-old P. massoniana seedlings. Results: All three of these L. bicolor isolates improved biomass production as well as P, Ca and Mg accumulation in P. massoniana seedlings. Moreover, the three ECM isolates facilitated the translocation of P, Ca, and Mg to aboveground in response to Al treatment, particularly when seedlings were inoculated with L. bicolor S238A. In addition, both L. bicolor 270 and L. bicolor S238A had no apparent effects on Al accumulation, while enhanced Al translocation to aboveground. In contrast, L. bicolor S238N decreased Al accumulation but had no significant effect on Al translocation. Conclusions: ECM fungi in the field improved plant Al-resistance by increasing nutrient uptake, and this was mostly due to translocation of P, Ca, and Mg to aboveground, not by decreasing the uptake and translocation of Al.

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Section: Accumulation and Translocation Of Al In Ecm P Massoniana Sesupporting

confidence: 88%

Section: Accumulation and Translocation Of Al In Ecm P Massoniana Sesupporting

confidence: 86%

Accumulation and Translocation of Phosphorus, Calcium, Magnesium, and Aluminum in Pinus massoniana Lamb. Seedlings Inoculated with Laccaria bicolor Growing in an Acidic Yellow Soil

Wang

et al. 2019

Forests

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“…Heavy metal exists in cell walls and vacuoles of plants. [14] Polysaccharides, pectinicacids, and proteins in cell walls provide many ligands and functional groups to prevent heavy metal by absorption, sedimentation, and complexation. [15] Plants can also separate heavy metal from others by vacuole compartmentalization as well as the combination of proteins, organic acids, sugar, and organic bases with heavy metal to detoxify plants by inactivating heavy metal.…”

Section: Resultsmentioning

confidence: 99%

“…Heavy metal exists in cell walls and vacuoles of plants . Polysaccharides, pectinicacids, and proteins in cell walls provide many ligands and functional groups to prevent heavy metal by absorption, sedimentation, and complexation .…”

Section: Resultsmentioning

confidence: 99%

Use of Hyperaccumulator to Enrich Metal Ions for Supercapacitor

Liang

et al. 2019

Adv Elect Materials

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issues such as some complex processes and expensive equipment used in the experiments to achieve the uniform distribution of metal particles add to its difficulty in practical application.Biomass is a good resource for green chemical synthesis because it is renewable and eco-friendly. To better survive and procreate, many species have evolved subtle structures and specific functions to meet natural selection. If we use them properly, we could produce many outstanding materials. Scientists have already worked on this strategy, and many achievements have been published, some of which are about electrochemistry. [7] For example, Yan's group prepared heteroatom-doped porous carbon flakes via carbonized human hair and used them as supercapacitor electrode materials. [8] But most of the work so far just utilized the carbon element in the biomass, some of which explained the contribution of a small amount of nitrogen. [9] The combination of biomass and metal should be further explored. In our previous work, we synthesized 1D hierarchically porous carbon via carbonized and activated biomass, and used them as supercapacitor electrode materials. [10] But when we loaded metal element to the material, the electrochemical property was worse than before. Since then, we have been looking for new strategies to combine biomass and metal element.Hyperaccumulators are plants with extraordinary ability to absorb heavy metal from the environment, proposed by Brooks in 1977. [11] The plant has the following characteristics according to his report. The heavy metal content in the aboveground part is over 100 times than that of ordinary plants. It can keep normal growth in heavy metal-polluted environment, without being poisoned by heavy metal. Limitation of heavy metal mass fraction varies from the metal. Cd is 100 mg kg −1 ; Co, Cu, Ni, and Pb are 1 g kg −1 , while Mn and Zn are 10 g kg −1 . [12] Egeria densa belongs to the family Hydrocharitaceae, and it is a species of perennial submerged plants with vigorous growth. Submerged plants exhibit better performance on heavy metal ion enrichment because of the lack of cuticle and wax layer, which makes the direct absorption of gas, water, minerals, and heavy metal possible. Some research has already proved the enrichment phenomenon of E. densa on heavy metal. [13] Herein, we grew E. densa with cobalt ion solution to enrich metal ions in plant, and activated the metal-loaded biomass to obtain the composite of cobalt and biochar. Cobalt nanospheres are well distributed in carbon skeletons, and exhibit obvious pseudocapacitance. Interconnected macropores and 3D carbon skeletons reduce impedance, and the material performs well on specific capacitance and rate capability. We explored different Inspired by the capability of hyperaccumulators to enrich heavy metal ions, metal-loaded biomass is prepared, and the metal nanospheres are dispersed in hierarchical porous carbon skeletons uniformly after activation. The raw material comes from nature and is renewable and environmentally friendly. The s...

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“…There are two main sources of heavy metals in wastewater effluents: natural and anthropogenic. The first includes soil erosion, volcanic activities, weathering of rocks and minerals [25], while the main anthropogenic sources are paints and pigments, plastic stabilizers, electroplating, incineration of cadmium-containing plastics, and phosphate fertilizers for Cd [27,28]; tanneries and steel industries for Cr [29]; pesticides and wood preservatives for Cu [29,30] and As [31]; release from Au-Ag mining and coal combustion, and medical waste for Hg [32,33]; industrial effluents, kitchen appliances, surgical instruments, steel alloys, automobile batteries [34], aerial emission from combustion of leaded petrol, battery manufacture, herbicides, and insecticides for Pb [27,31,32].…”

Section: Heavy Metalsmentioning

confidence: 99%

Biosorption of Water Pollutants by Fungal Pellets

Legorreta-Castañeda

Lucho-Constantino

Beltrán-Hernández

et al. 2020

Water

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Fungal biosorption is an environmental biotechnology based on the ability of the fungal cell wall to concentrate harmful water pollutants. Among its advantages are its simplicity, high efficiency, flexibility of operation, and low cost. The biosorptive performance of fungal pellets is getting growing attention since they offer process advantages over the culture of disperse mycelia, such as an enhanced biomass separation, and a high resilience in severe environmental conditions. In this review, biosorption capacity of fungal pellets towards heavy metals, dyes, phenolic compounds, humic substances, pesticides, and pharmaceuticals was reviewed. Available data about the adsorption capacity of pellets, their removal efficiency, and the operational conditions used were collected and synthesized. The studies relying on biodegradation were discarded to present only the possibilities of fungal pellets for removing these concern pollutants through biosorption. It was found that the biosorption of complex mixtures of pollutants on fungal pellets is scarcely studied, as well as the interfering effect of anions commonly found in water and wastewater. Furthermore, there is a lack of research with real wastewater and at pilot and large scale. These topics need to be further explored to take full advantage of fungal pellets on improving the quality of aquatic systems.

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Metal accumulation and detoxification mechanisms in mycorrhizal Betula pubescens

Cited by 33 publications

References 52 publications

Accumulation and Translocation of Phosphorus, Calcium, Magnesium, and Aluminum in Pinus massoniana Lamb. Seedlings Inoculated with Laccaria bicolor Growing in an Acidic Yellow Soil

Accumulation and Translocation of Phosphorus, Calcium, Magnesium, and Aluminum in Pinus massoniana Lamb. Seedlings Inoculated with Laccaria bicolor Growing in an Acidic Yellow Soil

Use of Hyperaccumulator to Enrich Metal Ions for Supercapacitor

Biosorption of Water Pollutants by Fungal Pellets

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