The Role of White-rot Fungi in Herbicide Transformation

Королева, О. В.; Zherdev, Anatoly V.; Куликова, Н. А.

doi:10.5772/61623

Cited by 5 publications

(4 citation statements)

References 102 publications

(148 reference statements)

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“…By adding only HBT, ATR and HBT can also conjugate together, decreasing the ATR concentration (Figure S7). 45 Although mediators like HBT can improve ATR degradation (for example for BNNS-Arg@Lac, with HBT, an ~96% degradation rate was achieved versus ~69% without it), the addition of HBT caused toxicity to chlorophyll a synthesis in the model organism, C. vulgaris (Figure S8). ATR, HBT, and their https://doi.org/10.26434/chemrxiv-2024-lqj0v ORCID: https://orcid.org/0000-0002-4821-795X Content not peer-reviewed by ChemRxiv.…”

Section: Resultsmentioning

confidence: 99%

Enhanced Atrazine Degradation Using Laccase Immobilized on Arginine-Functionalized Boron Nitride Nanosheets

Gao,

Xiao,

Zou

et al. 2024

Preprint

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Fungal enzyme-mediated systems have been widely employed for the degradation of environmental contaminants. However, the use of free enzymes is limited by the rapid loss of their catalytic activity, stability, and reusability, which further restricts their catalytic performance. In this work, we developed an enzyme immobilization platform by elaborately anchoring the fungal laccase onto arginine-functionalized boron nitride nanosheets (BNNS-Arg@Lac). BNNS-Arg@Lac showcased enhanced stability against fluctuating pH values and temperatures, along with remarkable reusability across six consecutive cycles, outperforming free natural laccase (nlaccase). As a demonstration, a model pollutant of atrazine (ATR) was selected for proof-of-concept applications, given substantial environmental and public health concerns in agriculture runoff. By applying BNNS-Arg@Lac, the ATR degradation rate was nearly doubled that of nlaccase. Moreover, BNNS-Arg@Lac consistently demonstrated superior ATR degradation capabilities in synthetic agricultural wastewater and various mediator systems compared to nlaccase. Comprehensive product analysis unraveled distinct degradation pathways for BNNS-Arg@Lac and nlaccase, further elucidating the mechanism of the laccase-catalyzed ATR treatment. Overall, this research provides a foundation for the future development of enzymatic catalysts in tackling pollution problems and may unlock new potential for green and efficient environmental remediation and waste management strategies.

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Section: Resultsmentioning

confidence: 99%

Enhanced Atrazine Degradation Using Laccase Immobilized on Arginine-Functionalized Boron Nitride Nanosheets

Gao,

Xiao,

Zou

et al. 2024

Preprint

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“…These microorganisms are able to produce ligninolytic enzymes, of which laccase (Lac, EC 1.10.3.2), manganese-dependent peroxidase (MnP, EC 1.11.1.13), and lignin peroxidase are the most important (LiP, EC 1.11.1.14). Because of their low substrate specificity, these enzymes catalyze not only the oxidation of lignin, but also the oxidation of a wide range of structurally varied chemicals that are difficult to degrade, such as PAHs [ 16 , 17 , 18 , 19 ], synthetic dyes [ 20 , 21 ], chlorinated organic compounds [ 22 ], pesticides [ 23 , 24 ], or residues of drugs [ 25 ]. Because of their low substrate specificity, these proteins are also beneficial in the decomposition of creosote.…”

Section: Introductionmentioning

confidence: 99%

PUF-Immobilized Bjerkandera adusta DSM 3375 as a Tool for Bioremediation of Creosote Oil Contaminated Soil

Struszczyk‐Świta

Drożdżyński

Murawska

et al. 2022

IJMS

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Creosote oil, a byproduct of coal distillation, is primarily composed of aromatic compounds that are difficult to degrade, such as polycyclic aromatic hydrocarbons, phenolic compounds, and N-, S-, and O-heterocyclic compounds. Despite its toxicity and carcinogenicity, it is still often used to impregnate wood, which has a particularly negative impact on the condition of the soil in plants that impregnate wooden materials. Therefore, a rapid, effective, and eco-friendly technique for eliminating the creosote in this soil must be developed. The research focused on obtaining a preparation of Bjerkandera adusta DSM 3375 mycelium immobilized in polyurethane foam (PUF). It contained mold cells in the amount of 1.10 ± 0.09 g (DW)/g of the carrier. The obtained enzyme preparation was used in the bioremediation of soil contaminated with creosote (2% w/w). The results showed that applying the PUF-immobilized mycelium of B. adusta DSM 3375 over 5, 10, and 15 weeks of bioremediation, respectively, removed 19, 30, and 35% of creosote from the soil. After 15 weeks, a 73, 79, and 72% level of degradation of fluoranthene, pyrene, and fluorene, respectively, had occurred. The immobilized cells have the potential for large-scale study, since they can degrade creosote oil in soil.

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“…A significant amount of studies and reviews has been conducted about the degradation of pesticides in soils by WRF; nevertheless, most of these studies have only focused on an individual contaminant pesticide [Getenga et al, 2000;Koroleva et al, 2015]. However, under actual agricultural practices, pesticides are more commonly found in mixtures and possible interactions can occur with the soil systems [Chu, 2008].…”

Section: Introductionmentioning

confidence: 99%

Studies on Pesticides Mixture Degradation by White Rot Fungi

Gouma¹,

Papadaki²,

Markakis³

et al. 2019

J. Ecol. Eng.

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The capacity of five white rot fungi species to degrade linuron, metribuzin and chlorpyrifos when applied both as single pesticides and mixed together in different concentrations on nutritionally poor media was investigated. Our results suggested that Pleurotus ostreatus, Pycnoporus coccineus, Phlebiopsis gigatea and Τrametes versicolor showed a remarkable tolerance to the pesticides, in all media tested. The EC 50 values presented a noticeable difference in the mixtures as compared with the individual ones. The minimum growth rate in the mixture was obtained by P. ostreatus whereas P. coccineus appeared to be more efficient than the rest fungal isolates, when cultivated in the soil extract medium. P. coccineus, P. gigantea and T. versicolor produce high levels of polyphenol oxidase, but only T. versicolor was capable of decomposing linuron when combined with metribuzin and chlorpyrifos.

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The Role of White-rot Fungi in Herbicide Transformation

Cited by 5 publications

References 102 publications

Enhanced Atrazine Degradation Using Laccase Immobilized on Arginine-Functionalized Boron Nitride Nanosheets

Enhanced Atrazine Degradation Using Laccase Immobilized on Arginine-Functionalized Boron Nitride Nanosheets

PUF-Immobilized Bjerkandera adusta DSM 3375 as a Tool for Bioremediation of Creosote Oil Contaminated Soil

Studies on Pesticides Mixture Degradation by White Rot Fungi

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