Bioremediation of copper using indigenous fungi Aspergillus species isolated from an abandoned copper mine soil

Palanivel, Thenmozhi Murugaian; Pracejus, Bernhard; Novo, Luís A. B.

doi:10.1016/j.chemosphere.2022.137688

Cited by 29 publications

(7 citation statements)

References 52 publications

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“…Mycelia of T. longibrachiatum exhibited elongation, thickening, and clustering of hyphae, as well as dense depositions on the surface, more visible for the Cr and Zn-treated samples, indicating the adsorption of Cr 6+ , Pb 2+ , and Zn 2+ ions. Such modifications have also been reported in other studies [ 135 , 136 , 137 ]. The structural alterations are a result of interferences in the deposition of chitin within the cell wall structure as well as the adsorption of metal onto the cell surface, which determine morphological modifications of the hyphae such as shrinkage and wrinkles, as indicated by Tu et al [ 138 ].…”

Section: Resultssupporting

confidence: 88%

Microbial Removal of Heavy Metals from Contaminated Environments Using Metal-Resistant Indigenous Strains

Firincă,

Zamfir,

Constantin

et al. 2023

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Contamination of soil with heavy metals has become a matter of global importance due to its impact on agriculture, environmental integrity, and therefore human health and safety. Several microbial strains isolated from soil contaminated by long-term chemical and petrochemical activities were found to manifest various levels of tolerance to Cr, Pb, and Zn, out of which Bacillus marisflavi and Trichoderma longibrachiatum exhibited above-moderate tolerance. The concentrations of target heavy metals before and after bioremediation were determined using electrochemical screen-printed electrodes (SPE) modified with different nanomaterials. The morpho-structural SEM/EDX analyses confirmed the presence of metal ions on the surface of the cell, with metal uptake being mediated by biosorption with hydroxyl, carboxyl, and amino groups as per FTIR observations. T. longibrachiatum was observed to pose a higher bioremediation potential compared to B. marisflavi, removing 87% of Cr and 67% of Zn, respectively. Conversely, B. marisflavi removed 86% of Pb from the solution, compared to 48% by T. longibrachiatum. Therefore, the fungal strain T. longibrachiatum could represent a viable option for Cr and Zn bioremediation strategies, whereas the bacterial strain B. marisflavi may be used in Pb bioremediation applications.

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Section: Resultssupporting

confidence: 88%

Microbial Removal of Heavy Metals from Contaminated Environments Using Metal-Resistant Indigenous Strains

Firincă,

Zamfir,

Constantin

et al. 2023

JoX

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“…72 This ability of fungi to not only accumulate scattered heavy metal contaminants from soils but also to degrade hydrocarbon pollutants inspired the concept of 'mycoremediation' as early as 1997, where oyster mushrooms were used to break down hydrocarbons from petroleum products at "The Bioneers" conference. 73 Since then, fungi have been employed to break down oil spills and rejuvenate mine soil 74 and port sediment health. 75 Fungi have also been used to treat run-off from roads, 73 oen containing toxic chemicals and heavy metals, and to treat soils contaminated with herbicides.…”

Section: Mycoremediationmentioning

confidence: 99%

Mycomining: perspective on fungi as scavengers of scattered metal, mineral, and rare earth element resources

Jones,

Bismarck

2024

RSC Sustain.

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“…According to Dusengemungu et al (2020), Aspergillus species, are effective for heavy metal bioremediation as a result of their capability to create metal sinks and produce organic acids. It has been reported that heavy metal tolerant/resistant microorganisms are generally present in heavy metal contaminated/polluted environments (Oladipo et al, 2016;Palanivel et al, 2023). Studies have documented the isolation of Aspergillus species from various contaminated/ polluted sites and attested to their bioremediative potentials.…”

Section: Introductionmentioning

confidence: 99%

Heavy metal resistant Aspergillus species from soil and water environments impacted by solid wastes dumping exhibit mycoremediative traits

Oluwatosin,

Abiodun

2024

Afr. J. Environ. Sci. Technol.

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This study assessed the growth and metal tolerance of fungal species from water and soil samples impacted by solid wastes in Ibadan, Nigeria. Isolated fungi species were exposed to two metals each (pb 100 to 600 and Co 50 to 300 mgl -1 ; Fe100 to 600 and Sn 25 to 300 mgl -1 ; and Mn 100 to 600 and Ag 25 to 100 mgl -1 ). These were filter-sterilized and incorporated into malt extract agar and mycelial radial growths were recorded over 13-days. Cultural, macroscopic and microscopic morphology revealed fungal identities as Aspergillus niger, Aspergillus nidulans and Aspergillus flavus. With A. niger exposed to pb and Co, A. nidulans, Fe and Sn and A. flavus, Mn and Ag, all species exhibited no statistical difference (p>.05) to controls. Throughout the incubation period, species revealed significant (p<.05) response and growth patterns comparable to controls. Furthermore, species' metal tolerance index (0.95-1.04) indicated high to very high tolerance. A. niger and A. nidulans demonstrated exceptional tolerance ≥1 to Co and Sn concentrations. Overall, A. niger, A. nidulans and A. flavus expressed tolerance to all test metals at elevated concentrations exceeding world permissible limits. These characteristic traits of the Aspergillus species indicate their valuable potential as mycoremediative candidates for the clean-up of heavy metal polluted environments.

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Bioremediation of copper using indigenous fungi Aspergillus species isolated from an abandoned copper mine soil

Cited by 29 publications

References 52 publications

Microbial Removal of Heavy Metals from Contaminated Environments Using Metal-Resistant Indigenous Strains

Microbial Removal of Heavy Metals from Contaminated Environments Using Metal-Resistant Indigenous Strains

Mycomining: perspective on fungi as scavengers of scattered metal, mineral, and rare earth element resources

Heavy metal resistant Aspergillus species from soil and water environments impacted by solid wastes dumping exhibit mycoremediative traits

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