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Zhu S, Chen A, Zhang J, Luo S, Yang J, Chai Y, Zeng J, Bai M, Yang Z, Lu G. Deciphering the biodegradation of thiamethoxam by Phanerochaete chrysosporium with natural siderite: Synergistic mechanisms, transcriptomics characterization, and molecular simulation. JOURNAL OF HAZARDOUS MATERIALS 2024; 480:136327. [PMID: 39481264 DOI: 10.1016/j.jhazmat.2024.136327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2024] [Revised: 10/12/2024] [Accepted: 10/25/2024] [Indexed: 11/02/2024]
Abstract
Fungi play vital roles in the fate of organic pollutants, particularly when interacting with minerals in aquatic and soil environments. Mechanisms by which fungi may mitigate pollutions in fungus-mineral interactions are still unclear. Inspired by biogeochemical cycling, we constructed a range of co-culture systems to investigate synergistic effects of the white-rot fungus Phanerochaete chrysosporium and the iron-bearing mineral siderite on thiamethoxam (THX) transformation, a common neonicotinoid pesticide. Co-culturing with siderite significantly enhanced THX transformation during the initial 10 days with a dose effect, achieving 86 % removal within 25 days. Fungi could affect siderite's dissolution, transformation, and precipitation through their biological activities. These interactions triggered physiological adaptation and resilience in fungi. Siderite could enhance the activity of fungal ligninolytic enzymes and cytochrome P450, facilitating biotransformation. Genes expression related to growth, energy metabolism, and oxidative stress response upregulated, enhancing fungal resilience to THX. The primary THX degradation pathways included nitro-reduction, C-N cleavage, and de-chlorination. Molecular dynamics simulations provided insights into catalytic mechanisms of enzyme-THX interactions. Together, siderite could act as natural enhancers that endowed fungi to resist physical and chemical stresses in environments, providing insights into contaminants attenuation, fungal biomineralization, and the coevolution of the Earth's lithosphere and biosphere.
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Affiliation(s)
- Shiye Zhu
- College of Environment and Ecology, Hunan Agricultural University, Changsha 410128, PR China
| | - Anwei Chen
- College of Environment and Ecology, Hunan Agricultural University, Changsha 410128, PR China.
| | - Jiale Zhang
- College of Environment and Ecology, Hunan Agricultural University, Changsha 410128, PR China
| | - Si Luo
- College of Environment and Ecology, Hunan Agricultural University, Changsha 410128, PR China
| | - Jizhao Yang
- College of Environment and Ecology, Hunan Agricultural University, Changsha 410128, PR China
| | - Youzheng Chai
- College of Environment and Ecology, Hunan Agricultural University, Changsha 410128, PR China
| | - Jianhua Zeng
- College of Food Science and Engineering, Ocean University of China, Qingdao 266000, PR China
| | - Ma Bai
- College of Environment and Ecology, Hunan Agricultural University, Changsha 410128, PR China
| | - Zhenghang Yang
- College of Environment and Ecology, Hunan Agricultural University, Changsha 410128, PR China
| | - Gen Lu
- Institute of Resource Biology and Biotechnology, Department of Biotechnology, College of Life Science and Technology, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, PR China
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Rathour RK, Rana N, Sharma V, Sharma N, Bhatt AK, Bhatia RK. Combatting synthetic dye toxicity through exploring the potential of lignin peroxidase from Pseudomonas fluorescence LiP RL5. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-34400-9. [PMID: 39103577 DOI: 10.1007/s11356-024-34400-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 07/12/2024] [Indexed: 08/07/2024]
Abstract
Untreated release of toxic synthetic and colorful dyes is a serious threat to the environment. Every year, several thousand gallons of dyes are being disposed into the water resources without any sustainable detoxification. The accumulation of hazardous dyes in the environment poses a severe threat to the human health, flora, fauna, and microflora. Therefore, in the present study, a lignin peroxidase enzyme from Pseudomonas fluorescence LiP-RL5 has been employed for the maximal detoxification of selected commercially used dyes. The enzyme production from the microorganism was enhanced ~ 20 folds using statistical optimization tool, response surface methodology. Four different combinations (pH, production time, seed age, and inoculum size) were found to be crucial for the higher production of LiP. The crude enzyme showed decolorization action on commonly used commercial dyes such as Crystal violet, Congo red, Malachite green, and Coomassie brilliant blue. Successful toxicity mitigation of these dyes culminated in the improved seed germination in three plant species, Vigna radiate (20-60%), Cicer arietinum (20-40%), and Phaseolus vulgaris (10-25%). The LiP treated dyes also exhibit reduced bactericidal effects against four common resident microbial species, Escherichia coli (2-10 mm), Bacillus sp. (4-8 mm), Pseudomonas sp. (2-8 mm), and Lactobacillus sp. (2-10 mm). Therefore, apart from the tremendous industrial applications, the LiP from Pseudomonas fluorescence LiP-RL5 could be a potential biocatalyst for the detoxification of synthetic dyes.
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Affiliation(s)
- Ranju Kumari Rathour
- Department of Biotechnology, Himachal Pradesh University, Summer Hill, Shimla, India
- Department of Biotechnology, Chandigarh Group of Colleges, Landran, Mohali, Punjab, India
| | - Nidhi Rana
- Department of Biotechnology, Himachal Pradesh University, Summer Hill, Shimla, India
| | - Vaishali Sharma
- Department of Biotechnology, Himachal Pradesh University, Summer Hill, Shimla, India
| | - Nitish Sharma
- Center of Innovative and Applied Bioprocessing, Biotechnology Research and Innovation Council (Department of Biotechnology, Government of India), NABI, SAS Nagar, Sector 81, Mohali, India
| | - Arvind Kumar Bhatt
- Department of Biotechnology, Himachal Pradesh University, Summer Hill, Shimla, India
| | - Ravi Kant Bhatia
- Department of Biotechnology, Himachal Pradesh University, Summer Hill, Shimla, India.
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Kumar N, He J, Rusling JF. Electrochemical transformations catalyzed by cytochrome P450s and peroxidases. Chem Soc Rev 2023; 52:5135-5171. [PMID: 37458261 DOI: 10.1039/d3cs00461a] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/01/2023]
Abstract
Cytochrome P450s (Cyt P450s) and peroxidases are enzymes featuring iron heme cofactors that have wide applicability as biocatalysts in chemical syntheses. Cyt P450s are a family of monooxygenases that oxidize fatty acids, steroids, and xenobiotics, synthesize hormones, and convert drugs and other chemicals to metabolites. Peroxidases are involved in breaking down hydrogen peroxide and can oxidize organic compounds during this process. Both heme-containing enzymes utilize active FeIVO intermediates to oxidize reactants. By incorporating these enzymes in stable thin films on electrodes, Cyt P450s and peroxidases can accept electrons from an electrode, albeit by different mechanisms, and catalyze organic transformations in a feasible and cost-effective way. This is an advantageous approach, often called bioelectrocatalysis, compared to their biological pathways in solution that require expensive biochemical reductants such as NADPH or additional enzymes to recycle NADPH for Cyt P450s. Bioelectrocatalysis also serves as an ex situ platform to investigate metabolism of drugs and bio-relevant chemicals. In this paper we review biocatalytic electrochemical reactions using Cyt P450s including C-H activation, S-oxidation, epoxidation, N-hydroxylation, and oxidative N-, and O-dealkylation; as well as reactions catalyzed by peroxidases including synthetically important oxidations of organic compounds. Design aspects of these bioelectrocatalytic reactions are presented and discussed, including enzyme film formation on electrodes, temperature, pH, solvents, and activation of the enzymes. Finally, we discuss challenges and future perspective of these two important bioelectrocatalytic systems.
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Affiliation(s)
- Neeraj Kumar
- Department of Chemistry, University of Connecticut, Storrs, CT 06269-3136, USA.
| | - Jie He
- Department of Chemistry, University of Connecticut, Storrs, CT 06269-3136, USA.
- Institute of Materials Science, University of Connecticut, Storrs, CT 06269-3136, USA
| | - James F Rusling
- Department of Chemistry, University of Connecticut, Storrs, CT 06269-3136, USA.
- Institute of Materials Science, University of Connecticut, Storrs, CT 06269-3136, USA
- Department of Surgery and Neag Cancer Center, Uconn Health, Farmington, CT 06030, USA
- School of Chemistry, National University of Ireland at Galway, Galway, Ireland
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Rovaletti A, De Gioia L, Fantucci P, Greco C, Vertemara J, Zampella G, Arrigoni F, Bertini L. Recent Theoretical Insights into the Oxidative Degradation of Biopolymers and Plastics by Metalloenzymes. Int J Mol Sci 2023; 24:6368. [PMID: 37047341 PMCID: PMC10094197 DOI: 10.3390/ijms24076368] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 03/20/2023] [Accepted: 03/22/2023] [Indexed: 03/30/2023] Open
Abstract
Molecular modeling techniques have become indispensable in many fields of molecular sciences in which the details related to mechanisms and reactivity need to be studied at an atomistic level. This review article provides a collection of computational modeling works on a topic of enormous interest and urgent relevance: the properties of metalloenzymes involved in the degradation and valorization of natural biopolymers and synthetic plastics on the basis of both circular biofuel production and bioremediation strategies. In particular, we will focus on lytic polysaccharide monooxygenase, laccases, and various heme peroxidases involved in the processing of polysaccharides, lignins, rubbers, and some synthetic polymers. Special attention will be dedicated to the interaction between these enzymes and their substrate studied at different levels of theory, starting from classical molecular docking and molecular dynamics techniques up to techniques based on quantum chemistry.
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Affiliation(s)
- Anna Rovaletti
- Department of Earth and Environmental Sciences, University of Milano-Bicocca, Piazza della Scienza 1, 20126 Milan, Italy
| | - Luca De Gioia
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milan, Italy
| | - Piercarlo Fantucci
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milan, Italy
| | - Claudio Greco
- Department of Earth and Environmental Sciences, University of Milano-Bicocca, Piazza della Scienza 1, 20126 Milan, Italy
| | - Jacopo Vertemara
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milan, Italy
| | - Giuseppe Zampella
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milan, Italy
| | - Federica Arrigoni
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milan, Italy
| | - Luca Bertini
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milan, Italy
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Stracke Pfingsten Franco D, Georgin Vizualization J, Gindri Ramos C, S. Netto M, Lobo B, Jimenez G, Lima EC, Sher F. Production of adsorbent for removal of propranolol hydrochloride: use of residues from Bactris guineensis fruit palm with economically exploitable potential from the Colombian Caribbean. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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Tailoring Lignin-Based Spherical Particles as a Support for Lipase Immobilization. Catalysts 2022. [DOI: 10.3390/catal12091031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Lignin-based spherical particles have recently gained popularity due to their characteristic and the usage of biopolymeric material. In this study, lignin-based spherical particles were prepared using choline chloride at different pH values, ranging from 2 to 10. Their dispersive, microstructural, and physicochemical properties were studied by a variety of techniques, including scanning electron microscopy, Fourier transform infrared spectroscopy, and zeta potential analysis. The best results were obtained for the particles prepared at pH 5 and 7, which had a spherical shape without a tendency to form aggregates and agglomerates. The lignin-based spherical particles were used for the immobilization of lipase, a model enzyme capable of catalyzing a wide range of transformations. It was shown that the highest relative activity of immobilized lipase was obtained after 24 h of immobilization at 30 °C and pH 7, using 100 mg of the support. Moreover, the immobilized lipase exhibited enhanced stability under harsh process conditions, and demonstrated high reusability, up to 87% after 10 cycles, depending on the support used. In the future, the described approach to enzyme immobilization based on lignin spheres may play a significant role in the catalytic synthesis of organic and fine chemicals, with high utility value.
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