Fungi Can Be More Effective than Bacteria for the Bioremediation of Marine Sediments Highly Contaminated with Heavy Metals

Dell’Anno, Filippo; Rastelli, Eugenio; Buschi, Emanuela; Barone, Giulio; Beolchini, Francesca; Dell’Anno, Antonio

doi:10.3390/microorganisms10050993

Cited by 19 publications

(8 citation statements)

References 104 publications

(160 reference statements)

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“…Arbuscular mycorrhizal fungi increases ferric chelate reductase activity as well as Fe, Zn, S and P in plant under Fe-deficiency, which is related to the bioavailability of Fe at rhizosphere zone 32 . Fungi are more effective than acidophilic autotrophic and heterotrophic bacteria for bioremediation of heavy metals (Zn and Cu) in sediments 33 . Unlike bacteria and fungi, the composition of protists is dominated by consumers and is found to be jointly structured by climate, soil physicochemical properties, macronutrients, micronutrients and its prey 20 , 34 .…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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The neglected role of micronutrients in predicting soil microbial structure

Peng

Liang

Gao

et al. 2022

npj Biofilms Microbiomes

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Predicting the distribution patterns of soil microbial communities requires consideration of more environmental drivers. The effects of soil micronutrients on composition of microbial communities are largely unknown despite micronutrients closely relating to soil fertility and plant communities. Here we used data from 228 agricultural fields to identify the importance of micronutrients (iron, zinc, copper and manganese) in shaping structure of soil microbial communities (bacteria, fungi and protist) along latitudinal gradient over 3400 km, across diverse edaphic conditions and climatic gradients. We found that micronutrients explained more variations in the structure of microbial communities than macronutrients in maize soils. Moreover, micronutrients, particularly iron and copper, explained a unique percentage of the variation in structure of microbial communities in maize soils even after controlling for climate, soil physicochemical properties and macronutrients, but these effects were stronger for fungi and protist than for bacteria. The ability of micronutrients to predict the structure of soil microbial communities declined greatly in paddy soils. Machine learning approach showed that the addition of micronutrients substantially increased the predictive power by 9–17% in predicting the structure of soil microbial communities with up to 69–78% accuracy. These results highlighted the considerable contributions of soil micronutrients to microbial community structure, and advocated that soil micronutrients should be considered when predicting the structure of microbial communities in a changing world.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

The neglected role of micronutrients in predicting soil microbial structure

Peng

Liang

Gao

et al. 2022

npj Biofilms Microbiomes

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“…Showed 8-fold higher As removal than conventional chemical treatments and higher removal rates than bacteria-mediated remediation. Non-mobile Zn and Cd were removed by fungi-induced bioleaching (Dell'anno et al, 2022). This was more efficient than bacteria augmented treatments as well, likely because of a fungi-mediated pH decrease, which enhanced mobilisation of these metals.…”

Section: Mycoremediation Of Heavy Metalsmentioning

confidence: 93%

Role of fungi in bioremediation of emerging pollutants

et al. 2023

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Advancements in chemical, medical, cosmetic, and plastic producing industries have improved agricultural yields, health and human life in general. As a negative consequence, a plethora of chemicals are intentionally and unintentionally released to terrestrial and aquatic environments with sometimes devastating effects for entire ecosystems. One mitigation strategy to counteract this pollution is bioremediation. Bioremediation is an umbrella term for biologically mediated processes during which an undesired compound is transformed, degraded, sequestered and/or entirely removed from the ecosystem. Organisms across all domains of life may mediate bioremediation; yet, fungi are particularly promising candidates. They possess metabolic capabilities to break down complex molecules which make fungi the ultimate degraders of recalcitrant organic matter in nature. Bioremediation by fungi, also termed mycoremediation, has been more frequently investigated in terrestrial than aquatic ecosystems, although fungi also thrive in lacustrine and marine environments. Here, we focus on mycoremediation of emerging pollutants in aquatic environments. In this context, we draw parallels between terrestrial and aquatic fungal taxa, and their role in mycoremediation. We discuss the ability of fungi to break-down (i) pesticides, (ii) pharmaceuticals and personal care products, (iii) plastics, both conventional types and (iv) bioplastics, and fungal role, (v) mitigation of heavy metal pollution. Furthermore, we (vi) discuss possible mycoremediation strategies in applied settings and highlight novel enzyme based mycoremediation strategies.

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“…Adsorption is considered an effective method due to its low initial cost, flexibility in design and ease of operation. Furthermore, adsorption does not involve the formation of secondary residues such as sludge [ 62 ].…”

Section: Nanotechnological Approaches For Wastewater Treatmentmentioning

confidence: 99%

Exploring Microbial-Based Green Nanobiotechnology for Wastewater Remediation: A Sustainable Strategy

Malik

Dhasmana

Preetam³

et al. 2022

Nanomaterials

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Water scarcity due to contamination of water resources with different inorganic and organic contaminants is one of the foremost global concerns. It is due to rapid industrialization, fast urbanization, and the low efficiency of traditional wastewater treatment strategies. Conventional water treatment strategies, including chemical precipitation, membrane filtration, coagulation, ion exchange, solvent extraction, adsorption, and photolysis, are based on adopting various nanomaterials (NMs) with a high surface area, including carbon NMs, polymers, metals-based, and metal oxides. However, significant bottlenecks are toxicity, cost, secondary contamination, size and space constraints, energy efficiency, prolonged time consumption, output efficiency, and scalability. On the contrary, green NMs fabricated using microorganisms emerge as cost-effective, eco-friendly, sustainable, safe, and efficient substitutes for these traditional strategies. This review summarizes the state-of-the-art microbial-assisted green NMs and strategies including microbial cells, magnetotactic bacteria (MTB), bio-augmentation and integrated bioreactors for removing an extensive range of water contaminants addressing the challenges associated with traditional strategies. Furthermore, a comparative analysis of the efficacies of microbe-assisted green NM-based water remediation strategy with the traditional practices in light of crucial factors like reusability, regeneration, removal efficiency, and adsorption capacity has been presented. The associated challenges, their alternate solutions, and the cutting-edge prospects of microbial-assisted green nanobiotechnology with the integration of advanced tools including internet-of-nano-things, cloud computing, and artificial intelligence have been discussed. This review opens a new window to assist future research dedicated to sustainable and green nanobiotechnology-based strategies for environmental remediation applications.

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Fungi Can Be More Effective than Bacteria for the Bioremediation of Marine Sediments Highly Contaminated with Heavy Metals

Cited by 19 publications

References 104 publications

The neglected role of micronutrients in predicting soil microbial structure

The neglected role of micronutrients in predicting soil microbial structure

Role of fungi in bioremediation of emerging pollutants

Exploring Microbial-Based Green Nanobiotechnology for Wastewater Remediation: A Sustainable Strategy

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