1
|
Edith Ayala-Rodríguez A, Valdés-Rodríguez S, Enrique Olalde-Mathieu V, Arias-Padró M, Reyes-Moreno C, Olalde-Portugal V. Extracellular ligninases production and lignin degradation by Paenibacillus polymyxa. J GEN APPL MICROBIOL 2024; 70:n/a. [PMID: 38104982 DOI: 10.2323/jgam.2023.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Bacteria represent an attractive source for the isolation and identification of potentially useful microorganisms for lignin depolymerization, a process required for the use of agricultural waste. In this work, ten autochthonous bacteria isolated from straw, cow manure, and composts were characterized for potential use in the biodelignification of the waste. A comparison of the ability to degrade lignin and the efficiency of ligninolytic enzymes was performed in bacteria grown in media with lignin as a sole carbon source (LLM, 3.5g/L lignin-alkali) and in complex media supplemented with All-Ban fiber (FLM, 1.5g/L). Bacterial isolates showed different abilities to degrade lignin, they decreased the lignin concentration from 7.6 to 18.6% in LLM and from 11.1 to 44.8% in FLM. They also presented the activity of manganese peroxidase, lignin peroxidases, and laccases with different specific activities. However, strain 26 identified as Paenibacillus polymyxa by sequencing the 16S rRNA showed the highest activity of lignin peroxidase and the ability to degrade efficiently lignocellulose. In addition, P. polymyxa showed the highest potential (desirability ≥ 0.795) related to the best combination of properties to depolymerize lignin from biomass. The results suggest that P. polymyxa has a coordinated lignin degradation system constituted of lignin peroxidase, manganese peroxidase, and laccase enzymes.
Collapse
Affiliation(s)
- Ana Edith Ayala-Rodríguez
- Programa Regional del Noroeste para el Doctorado en Biotecnología, Facultad de Ciencias Químico-Biológicas, Universidad Autónoma de Sinaloa
| | - Silvia Valdés-Rodríguez
- Departamento de Biotecnología y Bioquímica, Centro de Investigación y de Estudios Avanzados, Instituto Politécnico Nacional, Unidad Irapuato
| | | | - María Arias-Padró
- Departamento de Biotecnología y Bioquímica, Centro de Investigación y de Estudios Avanzados, Instituto Politécnico Nacional, Unidad Irapuato
| | - Cuauhtémoc Reyes-Moreno
- Programa Regional del Noroeste para el Doctorado en Biotecnología, Facultad de Ciencias Químico-Biológicas, Universidad Autónoma de Sinaloa
| | - Víctor Olalde-Portugal
- Departamento de Biotecnología y Bioquímica, Centro de Investigación y de Estudios Avanzados, Instituto Politécnico Nacional, Unidad Irapuato
| |
Collapse
|
2
|
Ying W, Chunjing C, Junhua L, Xuan L, Zhaojiang W, Jie C. Efficient crop straws biotreatment using the fungus Cerrena Unicolor GC.u01. AMB Express 2024; 14:28. [PMID: 38400878 PMCID: PMC10894188 DOI: 10.1186/s13568-024-01668-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 01/12/2024] [Indexed: 02/26/2024] Open
Abstract
Lignin is main composition of agricultural biomass which can be decomposed through enzymatic hydrolysis by fungi. However, there are still needs to identify more efficient and effective fungal stain for biomass valorization. In this study, lignin degrading fungi from birch forest were screened for sustainable degradation of waste agricultural straws. The most effective strain was identified as Cerrena unicolor GC.u01 using 18 S rDNA gene-sequencing technology. Three different crop straws (corn stalk, rice and wheat straws) were used for the biotreatment studies. The activities of lignin degrading enzymes, laccase (Lac), cellulase and xylanase, secreted by C. unicolor were also determined. Scanning electron microscopy (SEM), fourier transform infrared spectroscopy (FTIR) and thermal gravimetric analyzer (TGA) were further used to monitor the effects of the biotreatment process. The results showed that C. unicolor degraded 34.3% rice straw lignin, a percentage which was higher than other isolated strains after 15 d straw liquid fermentation. The highest Lac activity (8.396 U•mL- 1) was observed with corn stalk on the 7 d. Cellulase and xylanase activities, in the same biomass, were higher than those of wheat and rice straws after 15 d. Furthermore, SEM, FTIR and TGA analyses showed that C. unicolor pretreatment process had significant effects on corn stalk, rice and wheat straws' structures. The newly isolated stain of C. unicolor demonstrated high lignin degradation potential that can provide effective, ecofriendly means of valorizing biomass to industrial useable raw-material.
Collapse
Affiliation(s)
- Wang Ying
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Ji'nan, Shandong, 250103, China
| | - Cai Chunjing
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Ji'nan, Shandong, 250103, China
| | - Lu Junhua
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Ji'nan, Shandong, 250103, China
| | - Li Xuan
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Ji'nan, Shandong, 250103, China
| | - Wang Zhaojiang
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong, 250353, China
| | - Chu Jie
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Ji'nan, Shandong, 250103, China.
| |
Collapse
|
3
|
Nakazawa T, Kawauchi M, Otsuka Y, Han J, Koshi D, Schiphof K, Ramírez L, Pisabarro AG, Honda Y. Pleurotus ostreatus as a model mushroom in genetics, cell biology, and material sciences. Appl Microbiol Biotechnol 2024; 108:217. [PMID: 38372792 PMCID: PMC10876731 DOI: 10.1007/s00253-024-13034-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 01/11/2024] [Accepted: 01/25/2024] [Indexed: 02/20/2024]
Abstract
Pleurotus ostreatus, also known as the oyster mushroom, is a popular edible mushroom cultivated worldwide. This review aims to survey recent progress in the molecular genetics of this fungus and demonstrate its potential as a model mushroom for future research. The development of modern molecular genetic techniques and genome sequencing technologies has resulted in breakthroughs in mushroom science. With efficient transformation protocols and multiple selection markers, a powerful toolbox, including techniques such as gene knockout and genome editing, has been developed, and numerous new findings are accumulating in P. ostreatus. These include molecular mechanisms of wood component degradation, sexual development, protein secretion systems, and cell wall structure. Furthermore, these techniques enable the identification of new horizons in enzymology, biochemistry, cell biology, and material science through protein engineering, fluorescence microscopy, and molecular breeding. KEY POINTS: • Various genetic techniques are available in Pleurotus ostreatus. • P. ostreatus can be used as an alternative model mushroom in genetic analyses. • New frontiers in mushroom science are being developed using the fungus.
Collapse
Affiliation(s)
- Takehito Nakazawa
- Graduate School of Agriculture, Kyoto University, Oiwake-Cho, Kitashirakawa, Sakyo-Ku, Kyoto, 606-8502, Japan
| | - Moriyuki Kawauchi
- Graduate School of Agriculture, Kyoto University, Oiwake-Cho, Kitashirakawa, Sakyo-Ku, Kyoto, 606-8502, Japan
| | - Yuitsu Otsuka
- Graduate School of Agriculture, Kyoto University, Oiwake-Cho, Kitashirakawa, Sakyo-Ku, Kyoto, 606-8502, Japan
| | - Junxian Han
- Graduate School of Agriculture, Kyoto University, Oiwake-Cho, Kitashirakawa, Sakyo-Ku, Kyoto, 606-8502, Japan
| | - Daishiro Koshi
- Graduate School of Agriculture, Kyoto University, Oiwake-Cho, Kitashirakawa, Sakyo-Ku, Kyoto, 606-8502, Japan
| | - Kim Schiphof
- Graduate School of Agriculture, Kyoto University, Oiwake-Cho, Kitashirakawa, Sakyo-Ku, Kyoto, 606-8502, Japan
| | - Lucía Ramírez
- Institute for Multidisciplinary Research in Applied Biology (IMAB), Public University of Navarra (UPNA), 31006, Pamplona, Spain
| | - Antonio G Pisabarro
- Institute for Multidisciplinary Research in Applied Biology (IMAB), Public University of Navarra (UPNA), 31006, Pamplona, Spain
| | - Yoichi Honda
- Graduate School of Agriculture, Kyoto University, Oiwake-Cho, Kitashirakawa, Sakyo-Ku, Kyoto, 606-8502, Japan.
| |
Collapse
|
4
|
Aza P, Camarero S. Fungal Laccases: Fundamentals, Engineering and Classification Update. Biomolecules 2023; 13:1716. [PMID: 38136587 PMCID: PMC10741624 DOI: 10.3390/biom13121716] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 11/17/2023] [Accepted: 11/20/2023] [Indexed: 12/24/2023] Open
Abstract
Multicopper oxidases (MCOs) share a common catalytic mechanism of activation by oxygen and cupredoxin-like folding, along with some common structural determinants. Laccases constitute the largest group of MCOs, with fungal laccases having the greatest biotechnological applicability due to their superior ability to oxidize a wide range of aromatic compounds and lignin, which is enhanced in the presence of redox mediators. The adaptation of these versatile enzymes to specific application processes can be achieved through the directed evolution of the recombinant enzymes. On the other hand, their substrate versatility and the low sequence homology among laccases make their exact classification difficult. Many of the ever-increasing amounts of MCO entries from fungal genomes are automatically (and often wrongly) annotated as laccases. In a recent comparative genomic study of 52 basidiomycete fungi, MCO classification was revised based on their phylogeny. The enzymes clustered according to common structural motifs and theoretical activities, revealing three novel groups of laccase-like enzymes. This review provides an overview of the structure, catalytic activity, and oxidative mechanism of fungal laccases and how their biotechnological potential as biocatalysts in industry can be greatly enhanced by protein engineering. Finally, recent information on newly identified MCOs with laccase-like activity is included.
Collapse
Affiliation(s)
| | - Susana Camarero
- Margarita Salas Center for Biological Research, Consejo Superior de Investigaciones Científicas (CSIC), 28040 Madrid, Spain;
| |
Collapse
|
5
|
Mou B, Gong G, Wu S. Biodegradation mechanisms of polycyclic aromatic hydrocarbons: Combination of instrumental analysis and theoretical calculation. CHEMOSPHERE 2023; 341:140017. [PMID: 37657699 DOI: 10.1016/j.chemosphere.2023.140017] [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: 06/29/2023] [Revised: 08/18/2023] [Accepted: 08/29/2023] [Indexed: 09/03/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are a common class of petroleum hydrocarbons, widely encountered in both environment and industrial pollution sources. Owing to their toxicity, environmental persistence, and potential bioaccumulation properties, a mounting interest has been kindled in addressing the remediation of PAHs. Biodegradation is widely employed for the removal and remediation of PAHs due to its low cost, lack of second-contamination and ease of operation. This paper reviews the degradation efficiency of degradation and the underlying mechanisms exhibited by algae, bacteria, and fungi in remediation. Additionally, it delved into the application of modern instrumental analysis techniques and theoretical investigations in the realm of PAH degradation. Advanced instrumental analysis methods such as mass spectrometry provide a powerful tool for identifying intermediates and metabolites throughout the degradation process. Meanwhile, theoretical calculations could guide the optimization of degradation processes by revealing the reaction mechanisms and energy changes in PAH degradation. The combined use of instrumental analysis and theoretical calculations allows for a comprehensive understanding of the degradation mechanisms of PAHs and provides new insights and approaches for the development of environmental remediation technologies.
Collapse
Affiliation(s)
- Bolin Mou
- Department of Food Science and Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Guangyi Gong
- Department of Food Science and Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China
| | - Shimin Wu
- Department of Food Science and Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, China.
| |
Collapse
|
6
|
Nakazawa T, Yamaguchi I, Zhang Y, Saka C, Wu H, Kayama K, Kawauchi M, Sakamoto M, Honda Y. Experimental evidence that lignin-modifying enzymes are essential for degrading plant cell wall lignin by Pleurotus ostreatus using CRISPR/Cas9. Environ Microbiol 2023; 25:1909-1924. [PMID: 37218079 DOI: 10.1111/1462-2920.16427] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 05/10/2023] [Indexed: 05/24/2023]
Abstract
Lignin-modifying enzymes (LMEs), which include laccases (Lacs), manganese peroxidases (MnPs), versatile peroxidases (VPs), and lignin peroxidases (LiPs), have been considered key factors in lignin degradation by white-rot fungi because they oxidize lignin model compounds and depolymerize synthetic lignin in vitro. However, it remains unclear whether these enzymes are essential/important in the actual degradation of natural lignin in plant cell walls. To address this long-standing issue, we examined the lignin-degrading abilities of multiple mnp/vp/lac mutants of Pleurotus ostreatus. One vp2/vp3/mnp3/mnp6 quadruple-gene mutant was generated from a monokaryotic wild-type strain PC9 using plasmid-based CRISPR/Cas9. Also, two vp2/vp3/mnp2/mnp3/mnp6, two vp2/vp3/mnp3/mnp6/lac2 quintuple-gene mutants, and two vp2/vp3/mnp2/mnp3/mnp6/lac2 sextuple-gene mutants were generated. The lignin-degrading abilities of the sextuple and vp2/vp3/mnp2/mnp3/mnp6 quintuple-gene mutants on the Beech wood sawdust medium reduced drastically, but not so much for those of the vp2/vp3/mnp3/mnp6/lac2 mutants and the quadruple mutant strain. The sextuple-gene mutants also barely degraded lignin in Japanese Cedar wood sawdust and milled rice straw. Thus, this study presented evidence that the LMEs, especially MnPs and VPs, play a crucial role in the degradation of natural lignin by P. ostreatus for the first time.
Collapse
Affiliation(s)
| | - Iori Yamaguchi
- Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Yufan Zhang
- Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Chinami Saka
- Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Hongli Wu
- Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Keita Kayama
- Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | | | | | - Yoichi Honda
- Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| |
Collapse
|
7
|
Sharma KK, Singh D, Mohite SV, Williamson PR, Kennedy JF. Metal manipulators and regulators in human pathogens: A comprehensive review on microbial redox copper metalloenzymes "multicopper oxidases and superoxide dismutases". Int J Biol Macromol 2023; 233:123534. [PMID: 36740121 DOI: 10.1016/j.ijbiomac.2023.123534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 01/17/2023] [Accepted: 01/31/2023] [Indexed: 02/05/2023]
Abstract
The chemistry of metal ions with human pathogens is essential for their survival, energy generation, redox signaling, and niche dominance. To regulate and manipulate the metal ions, various enzymes and metal chelators are present in pathogenic bacteria. Metalloenzymes incorporate transition metal such as iron, zinc, cobalt, and copper in their reaction centers to perform essential metabolic functions; however, iron and copper have gained more importance. Multicopper oxidases have the ability to perform redox reaction on phenolic substrates with the help of copper ions. They have been reported from Enterobacteriaceae, namely Salmonella enterica, Escherichia coli, and Yersinia enterocolitica, but their role in virulence is still poorly understood. Similarly, superoxide dismutases participate in reducing oxidative stress and allow the survival of pathogens. Their role in virulence and survival is well established in Salmonella typhimurium and Mycobacterium tuberculosis. Further, to ensure survival against stress, like metal starvation or metal toxicity, redox metalloenzymes and metal transportation systems of pathogens actively participate in metal homeostasis. Recently, the omics and protein structure biology studies have helped to predict new targets for regulation the colonization potential of the pathogenic strains. The current review is focused on the major roles of redox metalloenzymes, especially MCOs and SODs of human pathogenic bacteria.
Collapse
Affiliation(s)
- Krishna Kant Sharma
- Laboratory of Enzymology and Gut Microbiology, Department of Microbiology, Maharshi Dayanand University, Rohtak 124001, Haryana, India.
| | - Deepti Singh
- Laboratory of Enzymology and Gut Microbiology, Department of Microbiology, Maharshi Dayanand University, Rohtak 124001, Haryana, India
| | - Shreya Vishwas Mohite
- Laboratory of Enzymology and Gut Microbiology, Department of Microbiology, Maharshi Dayanand University, Rohtak 124001, Haryana, India
| | - Peter R Williamson
- Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - John F Kennedy
- Chembiotech Laboratories, Advanced Science and Technology Institute, 5 the Croft, Buntsford Drive, Stoke Heath, Bromsgrove, Worcs B60 4JE, UK
| |
Collapse
|
8
|
Hadibarata T, Kristanti RA, Bilal M, Yilmaz M, Sathishkumar P. Biodegradation mechanism of chlorpyrifos by halophilic bacterium Hortaea sp. B15. CHEMOSPHERE 2023; 312:137260. [PMID: 36400190 DOI: 10.1016/j.chemosphere.2022.137260] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 11/06/2022] [Accepted: 11/14/2022] [Indexed: 06/16/2023]
Abstract
For decades, most of the developing nations have relied on chlorpyrifos for insecticidal activity in the agriculture sector. It is a common chlorinated organophosphorus pesticide that has been widely used to control insects to protect plants. This study aimed to investigate the effects of environmental characteristics such as salinity, pH, temperature, and surfactant on Hortaea sp. B15 mediated degradation of chlorpyrifos as well as enzyme activity and metabolic pathway. The highest bacterial growth (4.6 × 1016 CFU/mL) was achieved after 20 h of incubation in a 100 mg/L chlorpyrifos amended culture. The fit model and feasible way to express the chlorpyrifos biodegradation kinetics in normal condition and optimized was a first-order rate equation, with an R2 value of 0.95-0.98. The optimum pH for chlorpyrifos biodegradation was pH 9, which resulted in a high removal rate (91.1%) and a maximum total count of 3.8 × 1016 CFU/mL. Increasing the temperature over 40 °C may inhibit microbial development and biodegradation. There was no significant effect of culture salinity on degradation and bacterial growth. In the presence of non-ionic surfactant Tween 80, the maximum chlorpyrifos degradation (89.5%) and bacterial growth (3.8 × 1016 CFU/mL) was achieved. Metabolites such as 3,5,6-trichloropyridin-2-ol and 2-pyridinol were identified in the Hortaea sp. B15 mediated degradation of chlorpyrifos. According to the findings, Hortaea sp. B15 should be recommended for use in the investigation of in situ biodegradation of pesticides.
Collapse
Affiliation(s)
- Tony Hadibarata
- Environmental Engineering Program, Faculty of Engineering and Science, Curtin University, CDT 250, Miri, Sarawak, 98009, Malaysia.
| | - Risky Ayu Kristanti
- Research Center for Oceanography, National Research and Innovation Agency of Indonesia, Jalan Pasir Putih 1, Jakarta, 14430, Indonesia
| | - Muhammad Bilal
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60695, Poznan, Poland
| | - Murat Yilmaz
- Department of Chemical Engineering, Faculty of Engineering, Osmaniye Korkut Ata University, 80000, Osmaniye, Turkiye
| | - Palanivel Sathishkumar
- Green Lab, Department of Prosthodontics, Saveetha Dental College & Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai 600 077, India.
| |
Collapse
|
9
|
Co-biomass degradation of fluoranthene by marine-derived fungi; Aspergillus aculeatus and Mucor irregularis: Comprehensive process optimization, enzyme induction and metabolic analyses. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
|
10
|
Liu X, Zain ul Arifeen M, Xue Y, Liu C. Genome-wide characterization of laccase gene family in Schizophyllum commune 20R-7-F01, isolated from deep sediment 2 km below the seafloor. Front Microbiol 2022; 13:923451. [PMID: 36003943 PMCID: PMC9393519 DOI: 10.3389/fmicb.2022.923451] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 07/19/2022] [Indexed: 11/13/2022] Open
Abstract
Laccases are ligninolytic enzymes that play a crucial role in various biological processes of filamentous fungi, including fruiting-body formation and lignin degradation. Lignin degradation is a complex process and its degradation in Schizophyllum commune is greatly affected by the availability of oxygen. Here, a total of six putative laccase genes (ScLAC) were identified from the S. commune 20R-7-F01 genome. These genes, which include three typical Cu-oxidase domains, can be classified into three groups based on phylogenetic analysis. ScLAC showed distinct intron-exon structures and conserved motifs, suggesting the conservation and diversity of ScLAC in gene structures. Additionally, the number and type of cis-acting elements, such as substrate utilization-, stress-, cell division- and transcription activation-related cis-elements, varied between ScLAC genes, suggesting that the transcription of laccase genes in S. commune 20R-7-F01 could be induced by different substrates, stresses, or other factors. The SNP analysis of resequencing data demonstrated that the ScLAC of S. commune inhabiting deep subseafloor sediments were significantly different from those of S. commune inhabiting terrestrial environments. Similarly, the large variation of conserved motifs number and arrangement of laccase between subseafloor and terrestrial strains indicated that ScLAC had a diverse structure. The expression of ScLAC5 and ScLAC6 genes was significantly up-regulated in lignin/lignite medium, suggesting that these two laccase genes might be involved in fungal utilization and degradation of lignite and lignin under anaerobic conditions. These findings might help in understanding the function of laccase in white-rot fungi and could provide a scientific basis for further exploring the relationship between the LAC family and anaerobic degradation of lignin by S. commune.
Collapse
Affiliation(s)
| | | | - Yarong Xue
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University, Nanjing, China
| | | |
Collapse
|
11
|
Pacetti A, Moretti S, Perrin C, Gelhaye E, Bieler E, Kassemeyer HH, Mugnai L, Farine S, Bertsch C. Grapevine Wood-Degrading Activity of Fomitiporia mediterranea M. Fisch.: A Focus on the Enzymatic Pathway Regulation. Front Microbiol 2022; 13:844264. [PMID: 35369524 PMCID: PMC8971955 DOI: 10.3389/fmicb.2022.844264] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Accepted: 02/04/2022] [Indexed: 11/13/2022] Open
Abstract
Fomitiporia mediterranea is a Basidiomycetes fungus associated with some of the Esca complex diseases and responsible for decay in grapevine wood. Its role in the onset of foliar symptoms has recently been reconsidered, mainly after evidence showing a reduction in foliar symptom expression after removal of rotten wood. The study of its degradation pathways has already been approached by other authors, and with this study much information is consolidated. A microscopic observation of degraded wood provides a first approach to the characterization of F. mediterranea modalities of wood cellular structure degradation. The decay of grapevine wood was reproduced in vitro, and the measurement of each wood-forming polymer loss highlighted characteristics of F. mediterranea common to selective white rot and showed how fungal strain and vine variety are factors determining the wood degradation. All these observations were supported by the analysis of the laccase and manganese peroxidase enzyme activity, as well as by the expression of the genes coding 6 putative laccase isoforms and 3 manganese peroxidase isoforms, thereby highlighting substantial intraspecific variability.
Collapse
Affiliation(s)
- Andrea Pacetti
- Laboratoire Vigne Biotechnologies et Environnement UR-3991, Université de Haute Alsace, Colmar, France
- Department of Agricultural, Food, Environmental and Forestry Science and Technology (DAGRI), Plant Pathology and Entomology Section, University of Florence, Florence, Italy
| | - Samuele Moretti
- Laboratoire Vigne Biotechnologies et Environnement UR-3991, Université de Haute Alsace, Colmar, France
| | - Célia Perrin
- Laboratoire Vigne Biotechnologies et Environnement UR-3991, Université de Haute Alsace, Colmar, France
| | - Eric Gelhaye
- Faculté des Sciences et Technologies Boulevard des Aiguillettes, UMR IAM - Université de Lorraine, Vandoeuvre-lès-Nancy, France
| | - Evi Bieler
- Swiss Nanoscience Institute (SNI) – Nano Imaging, University of Basel, Basel, Switzerland
| | - Hanns-Heinz Kassemeyer
- Swiss Nanoscience Institute (SNI) – Nano Imaging, University of Basel, Basel, Switzerland
- State Institute for Viticulture, Plant Pathology & Diagnostics, Freiburg, Germany
- Faculty of Biology, Plant Biomechanics Group and Botanic Garden, Albert-Ludwigs-Universität Freiburg, Freiburg im Breisgau, Germany
| | - Laura Mugnai
- Department of Agricultural, Food, Environmental and Forestry Science and Technology (DAGRI), Plant Pathology and Entomology Section, University of Florence, Florence, Italy
| | - Sibylle Farine
- Laboratoire Vigne Biotechnologies et Environnement UR-3991, Université de Haute Alsace, Colmar, France
| | - Christophe Bertsch
- Laboratoire Vigne Biotechnologies et Environnement UR-3991, Université de Haute Alsace, Colmar, France
| |
Collapse
|
12
|
Di Lella S, La Porta N, Tognetti R, Lombardi F, Nardin T, Larcher R. White rot fungal impact on the evolution of simple phenols during decay of silver fir wood by UHPLC-HQOMS. PHYTOCHEMICAL ANALYSIS : PCA 2022; 33:170-183. [PMID: 34322910 PMCID: PMC9290616 DOI: 10.1002/pca.3077] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 06/09/2021] [Accepted: 06/17/2021] [Indexed: 06/13/2023]
Abstract
INTRODUCTION Silver fir (Abies alba Mill.) is one of the most valuable conifer wood species in Europe. Among the main opportunistic pathogens that cause root and butt rot on silver fir are Armillaria ostoyae and Heterobasidion abietinum. Due to the different enzymatic pools of these wood-decay fungi, different strategies in metabolizing the phenols were available. OBJECTIVE This work explores the changes in phenolic compounds during silver fir wood degradation. METHODOLOGY Phenols were analyzed before and after fungus inoculation in silver fir macerated wood after 2, 4 and 6 months. All samples were analyzed using high-performance liquid chromatography coupled to a hybrid quadrupole-orbitrap mass spectrometer. RESULTS Thirteen compounds, including simple phenols, alkylphenyl alcohols, hydroxybenzoketones, hydroxycinnamaldehydes, hydroxybenzaldehydes, hydroxyphenylacetic acids, hydroxycinnamic acids, hydroxybenzoic acids and hydroxycoumarins, were detected. Pyrocatechol, coniferyl alcohol, acetovanillone, vanillin, benzoic acid, 4-hydroxybenzoic acid and vanillic acid contents decreased during the degradation process. Methyl vanillate, ferulic acid and p-coumaric were initially produced and then degraded. Scopoletin was accumulated. Pyrocatechol, acetovanillone and methyl vanillate were found for the first time in both degrading and non-degrading wood of silver fir. CONCLUSIONS Despite differences in the enzymatic pool, both fungi caused a significant decrease in the amounts of phenolic compounds with the accumulation of the only scopoletin. Principal component analysis revealed an initial differentiation between the degradation activity of the two fungal species during degradation, but similar phenolic contents at the end of wood degradation.
Collapse
Affiliation(s)
- Stefania Di Lella
- Department of Biosciences and TerritoryUniversity of MolisePescheItaly
- Research and Innovation CentreFondazione Edmund MachSan Michele all'AdigeItaly
- Department of Agricultural, Environmental and Food SciencesUniversity of MoliseCampobassoItaly
| | - Nicola La Porta
- Research and Innovation CentreFondazione Edmund MachSan Michele all'AdigeItaly
- The EFI Project Centre on Mountain Forests (MOUNTFOR)Edmund Mach FoundationTrentoItaly
| | - Roberto Tognetti
- Department of Agricultural, Environmental and Food SciencesUniversity of MoliseCampobassoItaly
- The EFI Project Centre on Mountain Forests (MOUNTFOR)Edmund Mach FoundationTrentoItaly
| | - Fabio Lombardi
- Department of AgrariaUniversity Mediterranea of Reggio CalabriaReggio CalabriaItaly
| | - Tiziana Nardin
- Technology Transfer CentreFondazione Edmund MachSan Michele all'AdigeItaly
| | - Roberto Larcher
- Technology Transfer CentreFondazione Edmund MachSan Michele all'AdigeItaly
| |
Collapse
|
13
|
Kakoti M, Dullah S, Hazarika DJ, Barooah M, Boro RC. Cinnabarinic acid from Trametes coccinea fruiting bodies exhibits antibacterial activity through inhibiting the biofilm formation. Arch Microbiol 2022; 204:173. [PMID: 35165789 DOI: 10.1007/s00203-022-02782-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 01/18/2022] [Accepted: 01/25/2022] [Indexed: 01/22/2023]
Abstract
Wild mushrooms are rich sources of natural compounds with potent bioactive properties. Several important metabolites have been reported from mushrooms, which possess clinically important bioactive properties like antibacterial, anticancer, antidiabetic, and neuroprotective activity. In this study, we have evaluated the antimicrobial activity of Trametes coccinea fruiting body extracts against different bacterial isolates, viz., Bacillus subtilis, Bacillus cereus, and Escherichia coli. Fruiting bodies of three T. coccinea samples, of which two were collected from Santipur, Arunachal Pradesh and one collected from Jorhat, Assam, were used for extraction using methanol. The extracts showed significant antimicrobial activity against all the test bacteria. Minimum Inhibitory Concentration (MIC) of the extracts against Bacillus subtilis, Bacillus cereus, and Escherichia coli was recorded as 400 µg/ml, 400 µg/ml, and 300 µg/ml, respectively. Furthermore, the bioactive compounds of the extract were separated and detected using Thin Layer Chromatography (TLC). Presence of cinnabarinic acid (CBA)-a potent antimicrobial compound- was detected in TLC, which was further confirmed through High Performance Liquid Chromatography (HPLC) and Electrospray Ionization-Mass Spectrometry (ESI-MS). Cinnabarinic acid was able to inhibit the formation of biofilms in Bacillus subtilis and B. cereus, suggesting that the compound can be beneficial in the management of biofilm-based antimicrobial resistance.
Collapse
Affiliation(s)
- Merilin Kakoti
- Department of Bioengineering and Technology, GUIST, Gauhati University, Guwahati, 781014, Assam, India
- Department of Agricultural Biotechnology, Assam Agricultural University, Jorhat, 785013, Assam, India
| | - Samim Dullah
- Department of Agricultural Biotechnology, Assam Agricultural University, Jorhat, 785013, Assam, India
| | - Dibya Jyoti Hazarika
- Department of Agricultural Biotechnology, Assam Agricultural University, Jorhat, 785013, Assam, India
- DBT - North East Centre for Agricultural Biotechnology, Assam Agricultural University, Jorhat, 785013, Assam, India
| | - Madhumita Barooah
- Department of Agricultural Biotechnology, Assam Agricultural University, Jorhat, 785013, Assam, India
| | - Robin Chandra Boro
- Department of Agricultural Biotechnology, Assam Agricultural University, Jorhat, 785013, Assam, India.
| |
Collapse
|
14
|
Clark M, Tepper K, Petroll K, Kumar S, Sunna A, Maselko M. Bioremediation of Industrial Pollutants by Insects Expressing a Fungal Laccase. ACS Synth Biol 2022; 11:308-316. [PMID: 34882406 DOI: 10.1021/acssynbio.1c00427] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Inadequate management of household and industrial wastes poses major challenges to human and environmental health. Advances in synthetic biology may help address these challenges by engineering biological systems to perform new functions such as biomanufacturing of high-value compounds from low-value waste streams and bioremediation of industrial pollutants. The current emphasis on microbial systems for biomanufacturing, which often requires highly preprocessed inputs and sophisticated infrastructure, is not feasible for many waste streams. Furthermore, concerns about transgene biocontainment have limited the release of engineered microbes or plants for bioremediation. Engineering of animals may provide opportunities for utilizing various waste streams that are not suitable for microbial biomanufacturing while effective transgene biocontainment options should enable in situ bioremediation. Here, we engineer the model insect Drosophila melanogaster to express a functional laccase from the fungus Trametes trogii. Laccase-expressing flies reduced concentrations of the endocrine disruptor bisphenol A by more than 50% when present in their growth media. A lyophilized powder prepared from engineered adult flies retained substantial enzymatic activity, degrading more than 90% of bisphenol A and the textile dye indigo carmine in aqueous solutions. Our results demonstrate that transgenic animals may be used to bioremediate environmental contaminants in vivo and serve as novel production platforms for industrial enzymes. These results support further development of insects, and possibly other animals, as bioproduction platforms and their potential use in bioremediation.
Collapse
Affiliation(s)
- Michael Clark
- Applied BioSciences, Macquarie University, Sydney, NSW 2109, Australia
| | - Kate Tepper
- Applied BioSciences, Macquarie University, Sydney, NSW 2109, Australia
| | - Kerstin Petroll
- Department of Molecular Sciences, Macquarie University, Sydney, NSW 2109, Australia
| | - Sheemal Kumar
- Applied BioSciences, Macquarie University, Sydney, NSW 2109, Australia
| | - Anwar Sunna
- Department of Molecular Sciences, Macquarie University, Sydney, NSW 2109, Australia
- Biomolecular Discovery Research Centre, Macquarie University, Sydney, NSW 2109, Australia
| | - Maciej Maselko
- Applied BioSciences, Macquarie University, Sydney, NSW 2109, Australia
- Biomolecular Discovery Research Centre, Macquarie University, Sydney, NSW 2109, Australia
- CSIRO Synthetic Biology Future Science Platform, Brisbane 4001 QLD, Australia
- CSIRO Health and Biosecurity, Geelong, VIC 3219, Australia
| |
Collapse
|
15
|
Chen X, Ouyang X, Li J, Zhao YL. Natural Syringyl Mediators Accelerate Laccase-Catalyzed β-O-4 Cleavage and Cα-Oxidation of a Guaiacyl Model Substrate via an Aggregation Mechanism. ACS OMEGA 2021; 6:22578-22588. [PMID: 34514230 PMCID: PMC8427646 DOI: 10.1021/acsomega.1c02501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Accepted: 07/15/2021] [Indexed: 05/30/2023]
Abstract
Laccase-mediator systems (LMSs) have been intensively investigated in lignin degradation. Although only natural metabolites are available for fungal lignin degradation, mediator molecules from metabolites have received substantially less attention than artificial organic-synthetic compounds. It remains unclear which metabolites can accelerate laccase-catalyzed reactions and how those natural mediators influence lignin degradation. In this work, we evaluated Trametes versicolor laccase-catalyzed reaction kinetics on a lignin guaiacyl subunit model (guaiacylglycerol-β-guaiacyl ether, G-β-GE) in the presence of a group of lignin syringyl subunit molecules: syringaldehyde, acetosyringone, and methyl syringate. We then compare their performance to a well-known synthetic mediator ABTS, 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid). Time-resolved UPLC-TOF-MS revealed that the syringyl mediators were more effective in accelerating the β-O-4 cleavage and Cα-oxidation of G-β-GE than ABTS under laccase-catalysis, despite the syringyl compounds possessing slower individual oxidation rates. In addition, the product profile of polymerization was also promoted dramatically, compared to that of the ABTS/laccase system. The LMS kinetic modeling suggested that mediator-substrate aggregation played a critical role in the laccase-mediator system; in which, the lignin syringyl and guaiacyl subunits likely form a π-π stacking van der Waals complex that can be oxidized faster than the syringyl or guaiacyl monomers by themselves. This syringyl-guaiacyl aggregation hypothesis postulates that the weak interactions in lignin biopolymers are able to accelerate the laccase-catalyzed biodegradation.
Collapse
Affiliation(s)
- Xu Chen
- State Key Laboratory of Microbial
Metabolism, Joint International Research Laboratory of Metabolic and
Developmental Sciences, Department of Bioinformatics and Biostatistics,
School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, People’s Republic of China
| | - Xingyu Ouyang
- State Key Laboratory of Microbial
Metabolism, Joint International Research Laboratory of Metabolic and
Developmental Sciences, Department of Bioinformatics and Biostatistics,
School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, People’s Republic of China
| | - Jiayi Li
- State Key Laboratory of Microbial
Metabolism, Joint International Research Laboratory of Metabolic and
Developmental Sciences, Department of Bioinformatics and Biostatistics,
School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, People’s Republic of China
| | - Yi-Lei Zhao
- State Key Laboratory of Microbial
Metabolism, Joint International Research Laboratory of Metabolic and
Developmental Sciences, Department of Bioinformatics and Biostatistics,
School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, People’s Republic of China
| |
Collapse
|
16
|
Sousa AC, Martins LO, Robalo MP. Laccases: Versatile Biocatalysts for the Synthesis of Heterocyclic Cores. Molecules 2021; 26:3719. [PMID: 34207073 PMCID: PMC8234338 DOI: 10.3390/molecules26123719] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/10/2021] [Accepted: 06/14/2021] [Indexed: 12/14/2022] Open
Abstract
Laccases are multicopper oxidases that have shown a great potential in various biotechnological and green chemistry processes mainly due to their high relative non-specific oxidation of phenols, arylamines and some inorganic metals, and their high redox potentials that can span from 500 to 800 mV vs. SHE. Other advantages of laccases include the use of readily available oxygen as a second substrate, the formation of water as a side-product and no requirement for cofactors. Importantly, addition of low-molecular-weight redox mediators that act as electron shuttles, promoting the oxidation of complex bulky substrates and/or of higher redox potential than the enzymes themselves, can further expand their substrate scope, in the so-called laccase-mediated systems (LMS). Laccase bioprocesses can be designed for efficiency at both acidic and basic conditions since it is known that fungal and bacterial laccases exhibit distinct optimal pH values for the similar phenolic and aromatic amines. This review covers studies on the synthesis of five- and six-membered ring heterocyclic cores, such as benzimidazoles, benzofurans, benzothiazoles, quinazoline and quinazolinone, phenazine, phenoxazine, phenoxazinone and phenothiazine derivatives. The enzymes used and the reaction protocols are briefly outlined, and the mechanistic pathways described.
Collapse
Affiliation(s)
- Ana Catarina Sousa
- Área Departamental de Engenharia Química, Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, R. Conselheiro Emídio Navarro 1, 1959-007 Lisboa, Portugal;
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Lígia O. Martins
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
| | - M. Paula Robalo
- Área Departamental de Engenharia Química, Instituto Superior de Engenharia de Lisboa, Instituto Politécnico de Lisboa, R. Conselheiro Emídio Navarro 1, 1959-007 Lisboa, Portugal;
- Centro de Química Estrutural, Complexo I, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| |
Collapse
|
17
|
Enhancement of Laccase Production by Optimizing the Cultural Conditions for Pleurotus sajor-caju in Solid-State Fermentation. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2021. [DOI: 10.22207/jpam.15.2.54] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Nowadays, a lot of interest has been given to the development of cost-effective and efficient enzyme production technologies. Laccase enzymes are widely used in biotechnological, environmental and industrial sectors. Due to the cost-effectiveness of the solid-state fermentation (SSF) process, it is widely used to produce a broad range of biological products. In this study, optimization of moisture content, temperature, pH, and inoculum size were studied to enhance laccase production ability of Pleurotus sajor-caju in SSF by using One Factor At Time (OFAT) and Response Surface Methodology (RSM). OFAT was used as a baseline study for deducing the experimental design of RSM. The highest production of laccase enzyme (1450 U/g) by Pleurotus sajor-caju on wheat straw was observed at 26°C, 6.0 pH, 72.5 % moisture content, 7.5% inoculum size, 1% fructose and 0.5 % peptone. Unlike the conventional inoculum preparation method, here the inoculum was generated by the spawning method for SSF. The molecular weight of partially purified laccase from Pleurotus sajor-caju was estimated to be around 62 K Da using SDS PAGE. The activity staining of laccase was observed as a zymogram on Native PAGE using ABTS as a substrate. Lignin degradation of wheat straw and its structural disruption due to laccase was observed by Scanning Electron Microscopy (SEM).
Collapse
|
18
|
Mejía-Otálvaro F, Merino-Restrepo A, Hormaza-Anaguano A. Evaluation of a Trametes pubescens laccase concentrated extract on allura red AC decolorization without the addition of synthetic mediators. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 285:112117. [PMID: 33609979 DOI: 10.1016/j.jenvman.2021.112117] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Revised: 01/31/2021] [Accepted: 02/01/2021] [Indexed: 06/12/2023]
Abstract
Synthetic dye bioremediation is a topic of great importance since these pollutants possess toxic effects, and huge quantities of them are being discharged into water bodies. Ligninolytic enzyme treatment stands out for being a cost-effective methodology, capable of obtaining high decolorization levels. In this work, a laccase enzyme treatment was evaluated to effectively perform a cycle of dye bioremediation. Furthermore, a dye decolorization improvement was also assessed through laccase immobilization. Particularly, a Trametes pubescens enzyme extract was concentrated, immobilized onto calcium alginate beads, and characterized to assess its dye decolorization potential. Ammonium sulfate precipitation and vacuum evaporation were evaluated to concentrate the crude extract and to decolorize allura red AC. Both treatments reached a high enzyme yield recovery (>90%), but only the vacuum-evaporated extract achieved a high allura red AC decolorization level after 16 h of contact time. This suggested that essential compounds for allura red AC decolorization were present in the crude extract, implying that neither a complete laccase purification process nor an addition of synthetic mediators are necessary. Under optimized immobilization conditions, 94.6% immobilization efficiency and 49.8% activity recovery were obtained with 0:1 alginate:enzyme (v/v), 100 mM CaCl2, and 5.0% w/v sodium alginate. Furthermore, by immobilizing the laccase concentrated extract, both the pH and temperature stabilities were improved. The decolorization of allura red AC by free and immobilized laccase was 68.4% and 4.6%, respectively, showing that although the enzyme stability was improved, dye decolorization was negatively affected. Thus, an efficient allura red AC decolorization was obtained with concentrated-free laccase by a feasible and low-cost methodology.
Collapse
Affiliation(s)
- Felipe Mejía-Otálvaro
- Faculty of Science, Universidad Nacional de Colombia, Sede Medellín, 050034, Medellín, Colombia.
| | - Andrés Merino-Restrepo
- Biorefining Conversions and Fermentation Laboratory, Department of Agricultural, Food and Nutritional Science, University of Alberta, T6G 2P5, Edmonton, AB, Canada.
| | | |
Collapse
|
19
|
Fungal Laccases to Where and Where? Fungal Biol 2021. [DOI: 10.1007/978-3-030-85603-8_6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
|
20
|
Bioprospecting for Biomolecules from Different Fungal Communities: An Introduction. Fungal Biol 2021. [DOI: 10.1007/978-3-030-85603-8_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
21
|
Saldarriaga-Hernández S, Velasco-Ayala C, Leal-Isla Flores P, de Jesús Rostro-Alanis M, Parra-Saldivar R, Iqbal HMN, Carrillo-Nieves D. Biotransformation of lignocellulosic biomass into industrially relevant products with the aid of fungi-derived lignocellulolytic enzymes. Int J Biol Macromol 2020; 161:1099-1116. [PMID: 32526298 DOI: 10.1016/j.ijbiomac.2020.06.047] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 06/03/2020] [Accepted: 06/05/2020] [Indexed: 02/08/2023]
Abstract
Lignocellulosic material has drawn significant attention among the scientific community due to its year-round availability as a renewable resource for industrial consumption. Being an economic substrate alternative, various industries are reevaluating processes to incorporate derived compounds from these materials. Varieties of fungi and bacteria have the ability to depolymerize lignocellulosic biomass by synthesizing degrading enzymes. Owing to catalytic activity stability and high yields of conversion, lignocellulolytic enzymes derived from fungi currently have a high spectrum of industrial applications. Moreover, these materials are cost effective, eco-friendly and nontoxic while having a low energy input. Techno-economic analysis for current enzyme production technologies indicates that synthetic production is not commercially viable. Instead, the economic projection of the use of naturally-produced ligninolytic enzymes is promising. This approach may improve the economic feasibility of the process by lowering substrate expenses and increasing lignocellulosic by-product's added value. The present review will discuss the classification and enzymatic degradation pathways of lignocellulolytic biomass as well as the potential and current industrial applications of the involved fungal enzymes.
Collapse
Affiliation(s)
- Sara Saldarriaga-Hernández
- Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Campus Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey, Nuevo Leon 64849, Mexico
| | - Carolina Velasco-Ayala
- Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Campus Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey, Nuevo Leon 64849, Mexico
| | - Paulina Leal-Isla Flores
- Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Campus Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey, Nuevo Leon 64849, Mexico
| | - Magdalena de Jesús Rostro-Alanis
- Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Campus Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey, Nuevo Leon 64849, Mexico
| | - Roberto Parra-Saldivar
- Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Campus Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey, Nuevo Leon 64849, Mexico
| | - Hafiz M N Iqbal
- Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Campus Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey, Nuevo Leon 64849, Mexico
| | - Danay Carrillo-Nieves
- Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Av. General Ramón Corona 2514, Nuevo México, Zapopan C.P. 45138, Jalisco, Mexico.
| |
Collapse
|
22
|
Trubitsina LI, Lisov AV, Belova OV, Trubitsin IV, Demin VV, Konstantinov AI, Zavarzina AG, Leontievsky AA. Transformation of low molecular compounds and soil humic acid by two domain laccase of Streptomyces puniceus in the presence of ferulic and caffeic acids. PLoS One 2020; 15:e0239005. [PMID: 32946485 PMCID: PMC7500650 DOI: 10.1371/journal.pone.0239005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 08/27/2020] [Indexed: 11/18/2022] Open
Abstract
The two-domain bacterial laccases oxidize substrates at alkaline pH. The role of natural phenolic compounds in the oxidation of substrates by the enzyme is poorly understood. We have studied the role of ferulic and caffeic acids in the transformation of low molecular weight substrates and of soil humic acid (HA) by two-domain laccase of Streptomyces puniceus (SpSL, previously undescribed). A gene encoding a two-domain laccase was cloned from S. puniceus and over-expressed in Escherichia coli. The recombinant protein was purified by affinity chromatography to an electrophoretically homogeneous state. The enzyme showed high thermal stability, alkaline pH optimum for the oxidation of phenolic substrates and an acidic pH optimum for the oxidation of K4[Fe(CN)6] (potassium ferrocyanide) and ABTS (2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt). Phenolic compounds were oxidized with lower efficiency than K4[Fe(CN)6] and ABTS. The SpSL did not oxidize 3.4-dimethoxybenzoic alcohol and p-hydroxybenzoic acid neither in the absence of phenolic acids nor in their presence. The enzyme polymerized HA-the amount of its high molecular weight fraction (>80 kDa) increased at the expense of low MW fraction (10 kDa). The addition of phenolic acids as potential mediators did not cause the destruction of HA by SpSL. In the absence of the HA, the enzyme polymerized caffeic and ferulic acids to macromolecular fractions (>80 kDa and 10-12 kDa). The interaction of SpSL with HA in the presence of phenolic acids caused an increase in the amount of HA high MW fraction and a two-fold increase in the molecular weight of its low MW fraction (from 10 to 20 kDa), suggesting a cross-coupling reaction. Infrared and solution-state 1H-NMR spectroscopy revealed an increase in the aromaticity of HA after its interaction with phenolic acids. The results of the study expand our knowledge on the transformation of natural substrates by two-domain bacterial laccases and indicate a potentially important role of the enzyme in the formation of soil organic matter (SOM) at alkaline pH values.
Collapse
Affiliation(s)
- Liubov I. Trubitsina
- G. K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences (IBPhM RAS), Pushchino, Russia
| | - Alexander V. Lisov
- G. K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences (IBPhM RAS), Pushchino, Russia
| | - Oxana V. Belova
- G. K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences (IBPhM RAS), Pushchino, Russia
| | - Ivan V. Trubitsin
- G. K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences (IBPhM RAS), Pushchino, Russia
| | - Vladimir V. Demin
- Faculty of Soil Science, Lomonosov Moscow State University, Moscow, Russia
| | | | - Anna G. Zavarzina
- Faculty of Soil Science, Lomonosov Moscow State University, Moscow, Russia
| | - Alexey A. Leontievsky
- G. K. Skryabin Institute of Biochemistry and Physiology of Microorganisms, Russian Academy of Sciences (IBPhM RAS), Pushchino, Russia
| |
Collapse
|
23
|
Góralczyk-Bińkowska A, Jasińska A, Długoński A, Płociński P, Długoński J. Laccase activity of the ascomycete fungus Nectriella pironii and innovative strategies for its production on leaf litter of an urban park. PLoS One 2020; 15:e0231453. [PMID: 32298310 PMCID: PMC7162450 DOI: 10.1371/journal.pone.0231453] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 03/24/2020] [Indexed: 12/13/2022] Open
Abstract
A laccase-producing ascomycete fungus was isolated from soil collected around the premises of a textile dye factory and identified as Nectriella pironii. Efficient laccase production was achieved via the synergistic action of 1 mM copper sulfate and ferulic acid. Extracts of rapeseed oil cake, grass hay, and leaf litter collected in a pocket urban park were used for enzyme production. The highest laccase activity (3,330 U/L) was observed in the culture grown on the leaf litter extract. This is the first report on biosynthesis of laccase by N. pironii. This is also the first study on utilization of naturally fallen park leaves as a substrate for fungal laccase production. The extracellular enzyme possessing laccase activity was purified to homogeneity by ion-exchange and gel filtration chromatographic techniques. The amino acid sequence of the protein revealed highest similarity to the laccase enzyme produced by Stachybotrys chartarum—and considerable homology to those produced by other fungal species. The purified laccase possessed a molecular mass of 50 kDa. The enzyme had an optimum pH of 2.0 or 6.0 and retained more than 50% of residual activity after 3 hours of incubation at pH 3.0–10.6 or 4.0–9.0 when 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid or 2,6-dimethoxyphenol, respectively, were used. Dithiothreitol, β-mercaptoethanol, and sodium azide at 1 mM concentration strongly inhibited the laccase activity, while in the presence of 50 mM urea, the enzyme was found to retain 25% of its activity. The laccase was able to decolorize more than 80% of Indigo Carmine, Remazol Brilliant Blue R, Reactive Orange 16, and Acid Red 27 dyes within 1 h. The possibility of leaf litter use for the production of the laccase enzyme from N. pironii (IM 6443), exhibiting high pH stability and degradative potential, makes it a promising tool for use in different environmental and industrial operations.
Collapse
Affiliation(s)
- Aleksandra Góralczyk-Bińkowska
- Department of Industrial Microbiology and Biotechnology, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
| | - Anna Jasińska
- Department of Industrial Microbiology and Biotechnology, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
| | - Andrzej Długoński
- Department of Environmental Engineering, Faculty of Biology and Environmental Sciences, Cardinal Stefan Wyszynski University in Warsaw, Warsaw, Poland
| | | | - Jerzy Długoński
- Department of Industrial Microbiology and Biotechnology, Faculty of Biology and Environmental Protection, University of Lodz, Lodz, Poland
- * E-mail:
| |
Collapse
|
24
|
Dillies J, Vivien C, Chevalier M, Rulence A, Châtaigné G, Flahaut C, Senez V, Froidevaux R. Enzymatic depolymerization of industrial lignins by laccase‐mediator systems in 1,4‐dioxane/water. Biotechnol Appl Biochem 2020; 67:774-782. [DOI: 10.1002/bab.1887] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Accepted: 10/05/2019] [Indexed: 01/14/2023]
Affiliation(s)
- Justine Dillies
- Université Lille, INRA, ISA, Université Artois, Université Littoral Côte d'Opale, EA 7394 ICV ‐ Institut Charles Viollette Avenue Paul Langevin – Cité scientifique 59655 Villeneuve d'Ascq F‐59000 Lille France
- Université Lille, CNRS, ISEN, Université Valenciennes, UMR 8520 IEMN‐ Institut d'Electronique, de Microelectronique et de Nanotechnologie Avenue Poincaré‐ Cité scientifique CS‐60069 59655 Villeneuve d'Ascq F‐59000 Lille France
- Agence de l'environnement et de la Maîtrise de l'Energie 20 avenue du Grésillé‐ BP 90406 49004 Angers Cedex 01 France
| | - Céline Vivien
- Université Lille, CNRS, ISEN, Université Valenciennes, UMR 8520 IEMN‐ Institut d'Electronique, de Microelectronique et de Nanotechnologie Avenue Poincaré‐ Cité scientifique CS‐60069 59655 Villeneuve d'Ascq F‐59000 Lille France
| | - Mickael Chevalier
- Université Lille, INRA, ISA, Université Artois, Université Littoral Côte d'Opale, EA 7394 ICV ‐ Institut Charles Viollette Avenue Paul Langevin – Cité scientifique 59655 Villeneuve d'Ascq F‐59000 Lille France
| | - Alexandre Rulence
- Université Lille, INRA, ISA, Université Artois, Université Littoral Côte d'Opale, EA 7394 ICV ‐ Institut Charles Viollette Avenue Paul Langevin – Cité scientifique 59655 Villeneuve d'Ascq F‐59000 Lille France
| | - Gabrielle Châtaigné
- Université Lille, INRA, ISA, Université Artois, Université Littoral Côte d'Opale, EA 7394 ICV ‐ Institut Charles Viollette Avenue Paul Langevin – Cité scientifique 59655 Villeneuve d'Ascq F‐59000 Lille France
| | - Christophe Flahaut
- Université Lille, INRA, ISA, Université Artois, Université Littoral Côte d'Opale, EA 7394 ICV ‐ Institut Charles Viollette Avenue Paul Langevin – Cité scientifique 59655 Villeneuve d'Ascq F‐59000 Lille France
| | - Vincent Senez
- Université Lille, CNRS, ISEN, Université Valenciennes, UMR 8520 IEMN‐ Institut d'Electronique, de Microelectronique et de Nanotechnologie Avenue Poincaré‐ Cité scientifique CS‐60069 59655 Villeneuve d'Ascq F‐59000 Lille France
| | - Renato Froidevaux
- Université Lille, INRA, ISA, Université Artois, Université Littoral Côte d'Opale, EA 7394 ICV ‐ Institut Charles Viollette Avenue Paul Langevin – Cité scientifique 59655 Villeneuve d'Ascq F‐59000 Lille France
| |
Collapse
|
25
|
|
26
|
Zhu L, Xu A, Zhang H, Lu Y, Liu S, Chen X, Chen H. Lignin Reactions and Structural Alternations under Typical Biomass Pretreatment Methods. CURR ORG CHEM 2019. [DOI: 10.2174/1385272823666190806100747] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The utilization of biomass in the production of renewable bioenergy and biomaterials has been a popular topic since the past decades as they are rich in carbohydrates. Most biomasses, such as wood, monocotyledons, and agriculture residues, need to be pretreated before the conversion of carbohydrates in order to break down the recalcitrant cell wall structure and increase the fiber accessibility. To date, a variety of pretreatment methods have been developed that vary from physical to chemical and biological methods. Pretreatment processes affect the cell wall physical structure as well as the chemical structure of the cell wall constituents. Comparing to the studies of the cellulose and hemicelluloses structural changes during pretreatment, such studies on lignin are relatively limited. On the other hand, in order to utilize the part of lignin from biorefinery processes, the understanding of the lignin structural changes during the refining process becomes important. In this study, typical pretreatment methods such as hydrothermal pretreatment, alkaline pretreatment, biodegradation, and oxidative pretreatment are introduced and their corresponding impacts on the lignin structures are reviewed.
Collapse
Affiliation(s)
- Linjiang Zhu
- Fermentation Technology Institute, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Anjie Xu
- Fermentation Technology Institute, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Hui Zhang
- Fermentation Technology Institute, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Yuele Lu
- Fermentation Technology Institute, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Shijie Liu
- Department of Paper and Bioprocess Engineering, SUNY-College of Environmental Science and Forestry, Syracuse, NY, 13210, United States
| | - Xiaolong Chen
- Fermentation Technology Institute, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Hanchi Chen
- Fermentation Technology Institute, Zhejiang University of Technology, Hangzhou, 310014, China
| |
Collapse
|
27
|
Xue L, Han H, Fan H, Li P, Wang T, Xiao J, Wang R, Wang J. Construction and Application of Low Cellulase-producing Bacillus licheniformis Strains for Bio-pulping of Bamboo. BIOTECHNOL BIOPROC E 2019. [DOI: 10.1007/s12257-018-0498-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
28
|
Deska M, Kończak B. Immobilized fungal laccase as "green catalyst" for the decolourization process – State of the art. Process Biochem 2019. [DOI: 10.1016/j.procbio.2019.05.024] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
|
29
|
Xie S, Sun S, Lin F, Li M, Pu Y, Cheng Y, Xu B, Liu Z, da Costa Sousa L, Dale BE, Ragauskas AJ, Dai SY, Yuan JS. Mechanism-Guided Design of Highly Efficient Protein Secretion and Lipid Conversion for Biomanufacturing and Biorefining. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1801980. [PMID: 31380177 PMCID: PMC6662401 DOI: 10.1002/advs.201801980] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Revised: 02/28/2019] [Indexed: 05/23/2023]
Abstract
Bacterial protein secretion represents a significant challenge in biotechnology, which is essential for the cost-effective production of therapeutics, enzymes, and other functional proteins. Here, it is demonstrated that proteomics-guided engineering of transcription, translation, secretion, and folding of ligninolytic laccase balances the process, minimizes the toxicity, and enables efficient heterologous secretion with a total protein yield of 13.7 g L-1. The secretory laccase complements the biochemical limits on lignin depolymerization well in Rhodococcus opacus PD630. Further proteomics analysis reveals the mechanisms for the oleaginous phenotype of R. opacus PD630, where a distinct multiunit fatty acid synthase I drives the carbon partition to storage lipid. The discovery guides the design of efficient lipid conversion from lignin and carbohydrate. The proteomics-guided integration of laccase-secretion and lipid production modules enables a high titer in converting lignin-enriched biorefinery waste to lipid. The fundamental mechanisms, engineering components, and design principle can empower transformative platforms for biomanufacturing and biorefining.
Collapse
Affiliation(s)
- Shangxian Xie
- Synthetic and Systems Biology Innovation Hub and Department of Plant Pathology and MicrobiologyTexas A&M UniversityCollege StationTX77843USA
| | - Su Sun
- Synthetic and Systems Biology Innovation Hub and Department of Plant Pathology and MicrobiologyTexas A&M UniversityCollege StationTX77843USA
| | - Furong Lin
- Synthetic and Systems Biology Innovation Hub and Department of Plant Pathology and MicrobiologyTexas A&M UniversityCollege StationTX77843USA
| | - Muzi Li
- Synthetic and Systems Biology Innovation Hub and Department of Plant Pathology and MicrobiologyTexas A&M UniversityCollege StationTX77843USA
| | - Yunqiao Pu
- Joint Institute for Biological Sciences and Biosciences DivisionOak Ridge National LaboratoryOak RidgeTN37831USA
| | - Yanbing Cheng
- Synthetic and Systems Biology Innovation Hub and Department of Plant Pathology and MicrobiologyTexas A&M UniversityCollege StationTX77843USA
| | - Bing Xu
- Synthetic and Systems Biology Innovation Hub and Department of Plant Pathology and MicrobiologyTexas A&M UniversityCollege StationTX77843USA
| | - Zhihua Liu
- Synthetic and Systems Biology Innovation Hub and Department of Plant Pathology and MicrobiologyTexas A&M UniversityCollege StationTX77843USA
| | - Leonardo da Costa Sousa
- Department of Chemical Engineering and Materials ScienceMichigan State UniversityEast LansingMI48824USA
| | - Bruce E. Dale
- Department of Chemical Engineering and Materials ScienceMichigan State UniversityEast LansingMI48824USA
| | - Arthur J. Ragauskas
- Joint Institute for Biological Sciences and Biosciences DivisionOak Ridge National LaboratoryOak RidgeTN37831USA
- Department of Chemical and Biomolecular Engineering & Department of Forestry, Wildlife, and FisheriesUniversity of TennesseeKnoxvilleTN37996USA
| | - Susie Y. Dai
- Synthetic and Systems Biology Innovation Hub and Department of Plant Pathology and MicrobiologyTexas A&M UniversityCollege StationTX77843USA
- State Hygienic LaboratoryUniversity of IowaCoralvilleIA52246USA
| | - Joshua S. Yuan
- Synthetic and Systems Biology Innovation Hub and Department of Plant Pathology and MicrobiologyTexas A&M UniversityCollege StationTX77843USA
| |
Collapse
|
30
|
Althuri A, Venkata Mohan S. Single pot bioprocessing for ethanol production from biogenic municipal solid waste. BIORESOURCE TECHNOLOGY 2019; 283:159-167. [PMID: 30903822 DOI: 10.1016/j.biortech.2019.03.055] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 03/07/2019] [Accepted: 03/09/2019] [Indexed: 06/09/2023]
Abstract
Burgeoning global energy demand and rapid diminution of fossil fuel reserves urged to seek for a sustainable energy source like bioethanol. Single pot bioprocessing (SPB) strategy employing in-house laccase, cellulase plus xylanase and amylase along with hexose and pentose sugar fermenting yeasts (Saccharomyces cerevisiae and Pichia stipitis) is designed in this study for ethanol production from biogenic municipal solid waste (BMSW). BMSW when subjected to simultaneous pretreatment and saccharification (SPS) resulted in 79.69% enzymatic digestibility and fared better compared to alkali pretreated counterparts (14.03%-51.10%). The maximum total sugar release in case of SPS was 146.9 g/L in 24 h. The maximum ethanol concentration of 5.24% (v/v) in 30 h was obtained from SPB of BMSW at 25% (w/v) solid loading. SPB for ethanol production from BMSW is an interesting and effective alternative to MSW going to landfill or incineration with an added perk of waste to wealth conversion.
Collapse
Affiliation(s)
- Avanthi Althuri
- Bioengineering and Environmental Sciences Lab, CEEFF, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500007, Telangana, India
| | - S Venkata Mohan
- Bioengineering and Environmental Sciences Lab, CEEFF, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500007, Telangana, India.
| |
Collapse
|
31
|
Pointing SB, Jones EBG, Vrijmoed LLP. Optimization of laccase production byPycnoporus sanguineusin submerged liquid culture. Mycologia 2019. [DOI: 10.1080/00275514.2000.12061138] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- S. B. Pointing
- Centre for Research in Fungal Diversity, Department of Ecology and Biodiversity, The University of Hong Kong, Pokfulam Road, Hong Kong
| | - E. B. G. Jones
- Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
| | - L. L. P. Vrijmoed
- Department of Biology and Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
| |
Collapse
|
32
|
Aptitude of Oxidative Enzymes for Treatment of Wastewater Pollutants: A Laccase Perspective. Molecules 2019; 24:molecules24112064. [PMID: 31151229 PMCID: PMC6600482 DOI: 10.3390/molecules24112064] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 04/19/2019] [Accepted: 04/27/2019] [Indexed: 01/28/2023] Open
Abstract
Natural water sources are very often contaminated by municipal wastewater discharges which contain either of xenobiotic pollutants and their sometimes more toxic degradation products, or both, which frustrates the universal millenium development goal of provision of the relatively scarce pristine freshwater to water-scarce and -stressed communities, in order to augment their socioeconomic well-being. Seeing that both regulatory measures, as regards the discharge limits of wastewater, and the query for efficient treatment methods remain unanswered, partially, the prospects of enzymatic treatment of wastewater is advisable. Therefore, a reconsideration was assigned to the possible capacity of oxidative enzymes and the respective challenges encountered during their applications in wastewater treatment, and ultimately, the prospects of laccase, a polyphenol oxidase that oxidizes aromatic and inorganic substrates with electron-donating groups in treatment aromatic contaminants of wastewater, in real wastewater situations, since it is assumed to be a vehicle for a greener community. Furthermore, the importance of laccase-driven catalysis toward maintaining mass-energy balance, hence minimizing environmental waste, was comprehensibly elucidated, as well the strategic positioning of laccase in a model wastewater treatment facility for effective treatment of wastewater contaminants.
Collapse
|
33
|
Santana CS, Nicodemos Ramos MD, Vieira Velloso CC, Aguiar A. Kinetic Evaluation of Dye Decolorization by Fenton Processes in the Presence of 3-Hydroxyanthranilic Acid. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16091602. [PMID: 31067822 PMCID: PMC6540061 DOI: 10.3390/ijerph16091602] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Revised: 04/30/2019] [Accepted: 05/02/2019] [Indexed: 11/16/2022]
Abstract
The fungal metabolite 3-hydroxyanthranilic acid (3-HAA) was used as a redox mediatorwith the aim of increasing dye degradation by Fenton oxidative processes (Fe2+/H2O2, Fe3+/H2O2). ItsFe3+-reducing activity can enhance the generation of reactive oxygen species as HO● radicals.Initially, the influence of 3-HAA on decolorization kinetics of five dyes (methylene blue,chromotrope 2R, methyl orange, phenol red, and safranin T) was investigated using decolorizationdata from a previous work conducted by the present research group. Fe3+-containing reaction datawere well fitted with first-order and mainly second-order kinetic models, whereas the BMG(Behnajady, Modirshahla and Ghanbary) model obtained optimal fit to Fe2+. Improvements inkinetic parameters (i.e., apparent rate constants and maximum oxidation capacity) were observedwith the addition of 3-HAA. In another set of experiments, a decrease in apparent activation energywas observed due to introducing 3-HAA into reactions containing either Fe2+ or Fe3+ in order todecolorize phenol red at different temperatures. This indicates that the redox mediator decreasesthe energy barrier so as to allow reactions to occur. Thus, based on recent experiments and thereaction kinetics models evaluated herein, pro-oxidant properties have been observed for 3-HAAin Fenton processes.
Collapse
Affiliation(s)
- Cássia Sidney Santana
- Campus Alto Paraopeba, Universidade Federal de São João Del-Rei, Ouro Branco-MG 36420-000, Brazil.
| | | | | | - André Aguiar
- Instituto de Recursos Naturais, Universidade Federal de Itajubá, Itajubá-MG 37500-903, Brazil.
| |
Collapse
|
34
|
Thermoalkaliphilic laccase treatment for enhanced production of high-value benzaldehyde chemicals from lignin. Int J Biol Macromol 2019; 124:200-208. [DOI: 10.1016/j.ijbiomac.2018.11.144] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 11/12/2018] [Accepted: 11/14/2018] [Indexed: 01/29/2023]
|
35
|
Dayi B, Duishemambet Kyzy A, Akdogan HA. Characterization of recuperating talent of white-rot fungi cells to dye-contaminated soil/water. Chin J Chem Eng 2019. [DOI: 10.1016/j.cjche.2018.05.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
36
|
Feng N, Guo L, Ren H, Xie Y, Jiang Z, Ek M, Zhai H. Changes in chemical structures of wheat straw auto-hydrolysis lignin by 3-hydroxyanthranilic acid as a laccase mediator. Int J Biol Macromol 2019; 122:210-215. [DOI: 10.1016/j.ijbiomac.2018.10.153] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 09/28/2018] [Accepted: 10/22/2018] [Indexed: 01/11/2023]
|
37
|
Binod P, Gnansounou E, Sindhu R, Pandey A. Enzymes for second generation biofuels: Recent developments and future perspectives. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.biteb.2018.06.005] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
|
38
|
Piccinino D, Capecchi E, Botta L, Bollella P, Antiochia R, Crucianelli M, Saladino R. Layer by layer supported laccase on lignin nanoparticles catalyzes the selective oxidation of alcohols to aldehydes. Catal Sci Technol 2019. [DOI: 10.1039/c9cy00962k] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Lignin nanoparticles support laccase from Trametes versicolor in the selective oxidation of alcohols to aldehydes, in the presence of redox mediators.
Collapse
Affiliation(s)
- Davide Piccinino
- Department of Biological and Ecological Sciences
- University of Tuscia
- 01100 Viterbo
- Italy
| | - Eliana Capecchi
- Department of Biological and Ecological Sciences
- University of Tuscia
- 01100 Viterbo
- Italy
| | - Lorenzo Botta
- Department of Biological and Ecological Sciences
- University of Tuscia
- 01100 Viterbo
- Italy
| | - Paolo Bollella
- Department of Chemistry and Drug Technologies
- Sapienza University of Rome
- 00185 Rome
- Italy
| | - Riccarda Antiochia
- Department of Chemistry and Drug Technologies
- Sapienza University of Rome
- 00185 Rome
- Italy
| | - Marcello Crucianelli
- Department of Physical and Chemical Sciences
- University of Aquila
- 67100 Aquila
- Italy
| | - Raffaele Saladino
- Department of Biological and Ecological Sciences
- University of Tuscia
- 01100 Viterbo
- Italy
| |
Collapse
|
39
|
Wang X, Yao B, Su X. Linking Enzymatic Oxidative Degradation of Lignin to Organics Detoxification. Int J Mol Sci 2018; 19:ijms19113373. [PMID: 30373305 PMCID: PMC6274955 DOI: 10.3390/ijms19113373] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 10/25/2018] [Accepted: 10/25/2018] [Indexed: 11/16/2022] Open
Abstract
The major enzymes involved in lignin degradation are laccase, class II peroxidases (lignin peroxidase, manganese peroxidase, and versatile peroxidase) and dye peroxidase, which use an oxidative or peroxidative mechanism to deconstruct the complex and recalcitrant lignin. Laccase and manganese peroxidase directly oxidize phenolic lignin components, while lignin peroxidase and versatile peroxidase can act on the more recalcitrant non-phenolic lignin compounds. Mediators or co-oxidants not only increase the catalytic ability of these enzymes, but also largely expand their substrate scope to those with higher redox potential or more complicated structures. Neither laccase nor the peroxidases are stringently selective of substrates. The promiscuous nature in substrate preference can be employed in detoxification of a range of organics.
Collapse
Affiliation(s)
- Xiaolu Wang
- Key Laboratory for Feed Biotechnology of the Ministry of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Bin Yao
- Key Laboratory for Feed Biotechnology of the Ministry of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Xiaoyun Su
- Key Laboratory for Feed Biotechnology of the Ministry of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| |
Collapse
|
40
|
Cardoso WS, Queiroz PV, Tavares GP, Santos FA, Soares FEDF, Kasuya MCM, Queiroz JHD. Multi-enzyme complex of white rot fungi in saccharification of lignocellulosic material. Braz J Microbiol 2018; 49:879-884. [PMID: 30150084 PMCID: PMC6175720 DOI: 10.1016/j.bjm.2018.05.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Revised: 05/14/2018] [Accepted: 05/18/2018] [Indexed: 11/28/2022] Open
Abstract
The multi-enzyme complex (crude extract) of white rot fungi Pleurotus ostreatus, Pleurotus eryngii, Trametes versicolor, Pycnosporus sanguineus and Phanerochaete chrysosporium were characterized, evaluated in the hydrolysis of pretreated pulps of sorghum straw and compared efficiency with commercial enzyme. Most fungi complexes had better hydrolysis rates compared with purified commercial enzyme.
Collapse
Affiliation(s)
| | | | | | - Fernando Almeida Santos
- Universidade Estadual do Rio Grande do Sul, Departamento de Bioenergia, Porto Alegre, RS, Brazil
| | | | | | | |
Collapse
|
41
|
Formation of the Azodication (ABTS2+) from ABTS [2,2′-Azinobis-(3-ethylbenzothiazoline-6-sulphonate)] in Sterile Plant Cultures: Root–Exuded Oxidoreductases Contribute to Rhizosphere Priming. SOIL SYSTEMS 2018. [DOI: 10.3390/soilsystems2020026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
42
|
Hilgers R, Vincken JP, Gruppen H, Kabel MA. Laccase/Mediator Systems: Their Reactivity toward Phenolic Lignin Structures. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2018; 6:2037-2046. [PMID: 29430340 PMCID: PMC5805406 DOI: 10.1021/acssuschemeng.7b03451] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 11/30/2017] [Indexed: 05/03/2023]
Abstract
Laccase-mediator systems (LMS) have been widely studied for their capacity to oxidize the nonphenolic subunits of lignin (70-90% of the polymer). The phenolic subunits (10-30% of the polymer), which can also be oxidized without mediators, have received considerably less attention. Consequently, it remains unclear to what extent the presence of a mediator influences the reactions of the phenolic subunits of lignin. To get more insight in this, UHPLC-MS was used to study the reactions of a phenolic lignin dimer (GBG), initiated by a laccase from Trametes versicolor, alone or in combination with the mediators HBT and ABTS. The role of HBT was negligible, as its oxidation by laccase occurred slowly in comparison to that of GBG. Laccase and laccase/HBT oxidized GBG at a comparable rate, resulting in extensive polymerization of GBG. In contrast, laccase/ABTS converted GBG at a higher rate, as GBG was oxidized both directly by laccase but also by ABTS radical cations, which were rapidly formed by laccase. The laccase/ABTS system resulted in Cα oxidation of GBG and coupling of ABTS to GBG, rather than polymerization of GBG. Based on these results, we propose reaction pathways of phenolic lignin model compounds with laccase/HBT and laccase/ABTS.
Collapse
|
43
|
Bronikowski A, Hagedoorn PL, Koschorreck K, Urlacher VB. Expression of a new laccase from Moniliophthora roreri at high levels in Pichia pastoris and its potential application in micropollutant degradation. AMB Express 2017; 7:73. [PMID: 28357784 PMCID: PMC5371579 DOI: 10.1186/s13568-017-0368-3] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2017] [Accepted: 03/07/2017] [Indexed: 12/28/2022] Open
Abstract
Laccases have gained significant attention due to their emerging applications including bioremediation, biomass degradation and biofuel cells. One of the prerequisites for the industrial application of laccases is their sufficient availability. However, expression levels of recombinantly expressed laccases are often low. In this study Mrl2, a new laccase from the basidiomycete Moniliophthora roreri, was cloned in Pichia pastoris and produced in an optimized fed-batch process at an exceptionally high yield of 1.05 g l−1. With a redox potential of 0.58 V, Mrl2 belongs to mid-redox potential laccases. However, Mrl2 demonstrated high kcat values of 316, 20, 74, and 36 s−1 towards 2,2′-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS), syringaldazine (SGZ), 2,6-dimethoxyphenol (2,6-DMP) and guaiacol, respectively. Mrl2 remained stable above pH 6 and in the presence of many metal ions, which is important for application in bioremediation. Mrl2 was investigated for the ability to degrade endocrine disrupting chemicals (EDCs) and non-steroidal anti-inflammatory drugs (NSDAIs) at neutral pH value. The enzyme accepted and converted estrone, 17β-estradiol, estriol, the synthetic contraceptive 17α-ethinyl estradiol and bisphenol A at pH 7 faster than high-potential laccases from Trametes versicolor. For example, within 30 min Mrl2 removed more than 90% bisphenol A, 17ß-estradiol, 17α-ethinyl estradiol and estriol, respectively. The concentration of the recalcitrant drug diclofenac dropped by 56% after 20 h incubation with Mrl2.
Collapse
|
44
|
Vos AM, Jurak E, Pelkmans JF, Herman K, Pels G, Baars JJ, Hendrix E, Kabel MA, Lugones LG, Wösten HAB. H 2O 2 as a candidate bottleneck for MnP activity during cultivation of Agaricus bisporus in compost. AMB Express 2017. [PMID: 28629207 PMCID: PMC5474230 DOI: 10.1186/s13568-017-0424-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Degradation of lignin by fungi enhances availability of cellulose and hemicellulose in plant waste and thereby increases the amount of carbon source available to these microorganisms. The button mushroom Agaricus bisporus degrades only about half of the lignin in compost and about 40% of the carbohydrates remain unutilized during mushroom cultivation. Here it was assessed whether over-expression of the manganese peroxidase gene mnp1 improves lignin degradation and, as a consequence, carbohydrate breakdown by A. bisporus. Transformants expressing mnp1 under the control of actin regulatory sequences produced MnP activity in malt extract medium, while the parental strain A15 did not. MnP activity was increased 0.3- and 3-fold at casing and after the 2nd flush of a semi-commercial cultivation, respectively, when compared to strain A15. Pyrolysis-GC-MS showed that overexpression of MnP decreased phenylmethane and phenylethane type lignin relative to the phenylpropane type after the 2nd flush. However, it neither affected the syringyl/guaiacyl derived residue ratio nor the ratio of oxidized to non-oxidized lignin residues. Moreover, the carbohydrate content and accessibility was not affected in compost. Notably, the capacity of compost extract to consume the MnP co-factor H2O2 was 4- to 8-fold higher than its production. This may well explain why over-expression of mnp1 did not improve carbohydrate degradation in compost. In fact, availability of H2O2 may limit lignin degradation by wild-type A. bisporus.
Collapse
|
45
|
Kwak J, Yoon S, Mahanty B, Kim CG. Redox-mediator-free degradation of sulfathiazole and tetracycline using Phanerochaete chrysosporium. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2017; 52:1211-1217. [PMID: 28910590 DOI: 10.1080/10934529.2017.1356191] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The removal of two of the most commonly used antibiotics, tetracycline (TC) and sulfathiazole (STZ), using laccase-producing Phanerochaete chrysosporium was studied in liquid-phase batch experiments in the absence of any synthetic redox mediator. The removal of STZ and TC from single antibiotic spikes varied from 97.8% to 15.4% and 98.8% to 31%, respectively, with increasing initial doses of 10-250 mg L-1 within 14 days of incubation. The enzyme activity of P. chrysosporium was only minimally influenced by the concentrations of these antibiotics. The degradation of antibiotics initiated before an appreciable extracellular enzyme activity was noted in the fungal culture. The appearance of low-molecular weight molecular fragments from parent antibiotics in liquid chromatography-mass spectrometry confirmed the biodegradation process.
Collapse
Affiliation(s)
- Jehun Kwak
- a Department of Environment Engineering , INHA University , Nam-gu, Incheon , Republic of Korea
| | - Soonuk Yoon
- a Department of Environment Engineering , INHA University , Nam-gu, Incheon , Republic of Korea
| | - Biswanath Mahanty
- b Department of Biotechnology , Karunya University , Coimbatore , Tamil Nadu , India
| | - Chang-Gyun Kim
- a Department of Environment Engineering , INHA University , Nam-gu, Incheon , Republic of Korea
| |
Collapse
|
46
|
Janusz G, Pawlik A, Sulej J, Swiderska-Burek U, Jarosz-Wilkolazka A, Paszczynski A. Lignin degradation: microorganisms, enzymes involved, genomes analysis and evolution. FEMS Microbiol Rev 2017; 41:941-962. [PMID: 29088355 PMCID: PMC5812493 DOI: 10.1093/femsre/fux049] [Citation(s) in RCA: 354] [Impact Index Per Article: 50.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 10/12/2017] [Indexed: 12/11/2022] Open
Abstract
Extensive research efforts have been dedicated to describing degradation of wood, which is a complex process; hence, microorganisms have evolved different enzymatic and non-enzymatic strategies to utilize this plentiful plant material. This review describes a number of fungal and bacterial organisms which have developed both competitive and mutualistic strategies for the decomposition of wood and to thrive in different ecological niches. Through the analysis of the enzymatic machinery engaged in wood degradation, it was possible to elucidate different strategies of wood decomposition which often depend on ecological niches inhabited by given organism. Moreover, a detailed description of low molecular weight compounds is presented, which gives these organisms not only an advantage in wood degradation processes, but seems rather to be a new evolutionatory alternative to enzymatic combustion. Through analysis of genomics and secretomic data, it was possible to underline the probable importance of certain wood-degrading enzymes produced by different fungal organisms, potentially giving them advantage in their ecological niches. The paper highlights different fungal strategies of wood degradation, which possibly correlates to the number of genes coding for secretory enzymes. Furthermore, investigation of the evolution of wood-degrading organisms has been described.
Collapse
Affiliation(s)
- Grzegorz Janusz
- Department of Biochemistry, Maria Curie-Sklodowska University, Akademicka 19 St., 20-033 Lublin, Poland
| | - Anna Pawlik
- Department of Biochemistry, Maria Curie-Sklodowska University, Akademicka 19 St., 20-033 Lublin, Poland
| | - Justyna Sulej
- Department of Biochemistry, Maria Curie-Sklodowska University, Akademicka 19 St., 20-033 Lublin, Poland
| | - Urszula Swiderska-Burek
- Department of Botany and Mycology, Maria Curie-Sklodowska University, Akademicka 19 St., 20-033 Lublin, Poland
| | - Anna Jarosz-Wilkolazka
- Department of Biochemistry, Maria Curie-Sklodowska University, Akademicka 19 St., 20-033 Lublin, Poland
| | - Andrzej Paszczynski
- School of Food Science, Food Research Center, Room 103, University of Idaho, Moscow, ID 83844, USA
| |
Collapse
|
47
|
Rajwar D, Paliwal R, Rai JPN. Biodegradation of pulp and paper mill effluent by co-culturing ascomycetous fungi in repeated batch process. ENVIRONMENTAL MONITORING AND ASSESSMENT 2017; 189:482. [PMID: 28861773 DOI: 10.1007/s10661-017-6198-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Accepted: 08/21/2017] [Indexed: 06/07/2023]
Abstract
The competence of novel fungal consortium, consisting of Nigrospora sp. LDF00204 (accession no. KP732542) and Curvularia lunata LDF21 (accession no. KU664593), was investigated for the treatment of pulp and paper mill effluent. Fungal consortium exhibited enhanced biomass production under optimized medium conditions, i.e., glucose as carbon (C), sodium nitrate as nitrogen (N), C/N 1.5:0.5, pH 5, temperature 30 °C, and agitation 140 rpm, and significantly reduced biochemical oxygen demand (85.6%), chemical oxygen demand (80%), color (82.3%), and lignin concentration (76.1%) under catalytic enzyme activity; however, unutilized ligninolytic enzymes, such as laccase (Lac), manganese peroxidase (MnP), and lignin peroxidase (LiP), were observed to be 13.5, 11.4, and 9.4 U/ml after the third cycle of effluent treatment in repeated batch process. Scanning electron microscopy (SEM) of fungal consortium revealed their compatibility through intermingled hyphae and spores, while the FTIR spectra confirmed the alteration of functional groups ensuring structural changes during the effluent treatment. Gas chromatography/mass spectroscopy (GC-MS) analysis showed the reduction of complex compounds and development of numerous low-molecular-weight metabolites, such as 1-3-dimethyl benzene, 2-chloro-3-methyl butane, pentadecanoic acid, and 1-2-benzene dicarboxylic acid, during the treatment, demonstrating the massive potential of the novel fungal consortium to degrade recalcitrant industrial pollutants.
Collapse
Affiliation(s)
- Deepika Rajwar
- Department of Environmental Sciences, G. B. Pant University of Agriculture & Technology, Pantnagar, 263 145, India.
| | - Rashmi Paliwal
- Department of Environmental Sciences, G. B. Pant University of Agriculture & Technology, Pantnagar, 263 145, India
| | - J P N Rai
- Department of Environmental Sciences, G. B. Pant University of Agriculture & Technology, Pantnagar, 263 145, India
| |
Collapse
|
48
|
Reappraising a Controversy: Formation and Role of the Azodication (ABTS2+) in the Laccase-ABTS Catalyzed Breakdown of Lignin. FERMENTATION-BASEL 2017. [DOI: 10.3390/fermentation3020027] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
49
|
Casado López S, Theelen B, Manserra S, Issak TY, Rytioja J, Mäkelä MR, de Vries RP. Functional diversity in Dichomitus squalens monokaryons. IMA Fungus 2017; 8:17-25. [PMID: 28824837 PMCID: PMC5493533 DOI: 10.5598/imafungus.2017.08.01.02] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 02/24/2017] [Indexed: 01/06/2023] Open
Abstract
Dichomitussqualens is a white-rot fungus that colonizes and grows mainly on softwood and is commonly found in the northern parts of Europe, North America, and Asia. We analyzed the genetic and physiological diversity of eight D. squalens monokaryons derived from a single dikaryon. In addition, an unrelated dikaryon and a newly established dikaryon from two of the studied monokaryons were included. Both growth and lignocellulose acting enzyme profiles were highly variable between the studied monokaryotic and dikaryotic strains, demonstrating a high level of diversity within the species.
Collapse
Affiliation(s)
- Sara Casado López
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands.,Fungal Molecular Physiology, Utrecht University, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
| | - Bart Theelen
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
| | - Serena Manserra
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
| | - Tedros Yonatan Issak
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands.,Fungal Molecular Physiology, Utrecht University, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
| | - Johanna Rytioja
- Department of Food and Environmental Sciences, Division of Microbiology and Biotechnology, Viikki Biocenter 1, University of Helsinki, Finland
| | - Miia R Mäkelä
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands.,Department of Food and Environmental Sciences, Division of Microbiology and Biotechnology, Viikki Biocenter 1, University of Helsinki, Finland
| | - Ronald P de Vries
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands.,Fungal Molecular Physiology, Utrecht University, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands.,Department of Food and Environmental Sciences, Division of Microbiology and Biotechnology, Viikki Biocenter 1, University of Helsinki, Finland
| |
Collapse
|
50
|
Munk L, Punt AM, Kabel MA, Meyer AS. Laccase catalyzed grafting of –N–OH type mediators to lignin via radical–radical coupling. RSC Adv 2017. [DOI: 10.1039/c6ra26106j] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Lignin can be functionalized with –N–OH type mediators via laccase catalysis. Three radical coupling mechanisms are suggested for this enzymatic “hetero-functionalization” which may be a new route for biomass lignin upgrading.
Collapse
Affiliation(s)
- L. Munk
- Center for BioProcess Engineering
- Department of Chemical and Biochemical Engineering
- Technical University of Denmark
- DK-2800 Kgs. Lyngby
- Denmark
| | - A. M. Punt
- Laboratory of Food Chemistry
- Wageningen University
- Wageningen
- The Netherlands
| | - M. A. Kabel
- Laboratory of Food Chemistry
- Wageningen University
- Wageningen
- The Netherlands
| | - A. S. Meyer
- Center for BioProcess Engineering
- Department of Chemical and Biochemical Engineering
- Technical University of Denmark
- DK-2800 Kgs. Lyngby
- Denmark
| |
Collapse
|