1
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Yin R, Zhang Y, Su L, Chen D, Lou S, Luo X, Wang L, Tang R, Zhang L, Tian X. The mechanism of trans-δ-viniferin inhibiting the proliferation of lung cancer cells A549 by targeting the mitochondria. Front Pharmacol 2023; 14:1190127. [PMID: 37274109 PMCID: PMC10232840 DOI: 10.3389/fphar.2023.1190127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Accepted: 05/03/2023] [Indexed: 06/06/2023] Open
Abstract
Trans-δ-viniferin (TVN), as a natural extract, is a resveratrol dimer with attractive biological activities, particularly its anti-tumor character. However, the mechanism of TVN interfering with cancerous proliferation has not been fully understood. Herein in this study, we found that TVN could trigger cancerous mitochondrial membrane potential (ΔΨm) reduction, with intracellular reactive oxidative species (ROS) level increasing, leading to apoptosis, which makes TVN a promising candidate for lung cancer cells A549 treatment. Therefore, this study provides TVN as an option to meet the demand for higher antitumor availability with lower biotoxicity and other clinical applications.
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Affiliation(s)
- Ruochun Yin
- School of Life Science, Anhui University, Hefei, China
- Hefei Ting Xiandu Biological Technology Co, Ltd., Hefei, China
| | - Yiling Zhang
- School of Life Science, Anhui University, Hefei, China
| | - Liping Su
- School of Life Science, Anhui University, Hefei, China
| | - Dongdong Chen
- Institutes of Physical Science and Information Technology, Anhui University, Hefei, China
| | - Shidi Lou
- School of Life Science, Anhui University, Hefei, China
| | - Xuecai Luo
- Hefei Ting Xiandu Biological Technology Co, Ltd., Hefei, China
| | - Lin Wang
- School of Life Science, Anhui University, Hefei, China
- Hefei Ting Xiandu Biological Technology Co, Ltd., Hefei, China
| | - Rupei Tang
- School of Life Science, Anhui University, Hefei, China
| | - Liang Zhang
- School of Life Science, Anhui University, Hefei, China
| | - Xiaohe Tian
- School of Life Science, Anhui University, Hefei, China
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2
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Wu D, Wei Z, Mohamed TA, Zheng G, Qu F, Wang F, Zhao Y, Song C. Lignocellulose biomass bioconversion during composting: Mechanism of action of lignocellulase, pretreatment methods and future perspectives. CHEMOSPHERE 2022; 286:131635. [PMID: 34346339 DOI: 10.1016/j.chemosphere.2021.131635] [Citation(s) in RCA: 56] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 06/24/2021] [Accepted: 07/20/2021] [Indexed: 05/26/2023]
Abstract
Composting is a biodegradation and transformation process that converts lignocellulosic biomass into value-added products, such as humic substances (HSs). However, the recalcitrant nature of lignocellulose hinders the utilization of cellulose and hemicellulose, decreasing the bioconversion efficiency of lignocellulose. Pretreatment is an essential step to disrupt the structure of lignocellulosic biomass. Many pretreatment methods for composting may cause microbial inactivation and death. Thus, the pretreatment methods suitable for composting can promote the degradation and transformation of lignocellulosic biomass. Therefore, this review summarizes the pretreatment methods suitable for composting. Microbial consortium pretreatment, Fenton pretreatment and surfactant-assisted pretreatment for composting may improve the bioconversion process. Microbial consortium pretreatment is a cost-effective pretreatment method to enhance HSs yields during composting. On the other hand, the efficiency of enzyme production during composting is very important for the degradation of lignocellulose, whose action mechanism is unknown. Therefore, this review describes the mechanism of action of lignocellulase, the predominant microbes producing lignocellulase and their related genes. Finally, optimizing pretreatment conditions and increasing enzymatic hydrolysis to improve the quality of composts by controlling suitable microenvironmental factors and core target microbial activities as a research focus in the bioconversion of lignocellulose during composting in the future.
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Affiliation(s)
- Di Wu
- College of Life Sciences, Northeast Agricultural University, Harbin, 150030, China
| | - Zimin Wei
- College of Life Sciences, Northeast Agricultural University, Harbin, 150030, China
| | - Taha Ahmed Mohamed
- College of Life Sciences, Northeast Agricultural University, Harbin, 150030, China; Soil, Water and Environment Research Institute, Agricultural Research Center, Giza, Egypt
| | - Guangren Zheng
- College of Life Sciences, Northeast Agricultural University, Harbin, 150030, China
| | - Fengting Qu
- College of Life Sciences, Northeast Agricultural University, Harbin, 150030, China
| | - Feng Wang
- College of Life Sciences, Northeast Agricultural University, Harbin, 150030, China
| | - Yue Zhao
- College of Life Sciences, Northeast Agricultural University, Harbin, 150030, China.
| | - Caihong Song
- College of Life Science, Liaocheng University, Liaocheng, 252000, China
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Wang L, Luo X, Pan Y, Zheng Z, Yin R, Tian X, Zhang L. Mechanism of Laccase Induction via Emodin in Trametes versicolor. Front Bioeng Biotechnol 2021; 9:653800. [PMID: 34095096 PMCID: PMC8171328 DOI: 10.3389/fbioe.2021.653800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 04/19/2021] [Indexed: 11/30/2022] Open
Abstract
Secondary metabolites of traditional Chinese herbs can prominently stimulate the production of laccase from white rot fungi during submerged fermentation. However, the molecular mechanism through which these natural products induce the production of laccase remains unknown. In this study, the Chinese herbal medicine Polygonum cuspidatum was used to induce laccase production in Trametes versicolor, and the best inducer was identified in emodin, even under conditions of 1000-L, large-scale fermentation. Proteomics analysis identified a selection of proteins that were differentially expressed in the presence of emodin, indicating that emodin may affect the expression of laccase genes through three mechanisms: reducing bioenergy productivity, the aryl hydrocarbon receptor (AHR)/xenobiotic response element (XRE) pathway, and the nuclear erythroid 2-related factor 2 (Nrf2)/antioxidant response element (ARE) pathway. Combined with protoplast flow cytometry and fluorescence, it is revealed that emodin might reduce the synthesis of ATP by lowering the mitochondrial membrane potential, leading to the subsequent responses.
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Affiliation(s)
- Lin Wang
- School of Life Sciences, Anhui University, Hefei, China
- Hefei Tingxiandu Biological Technology Co., Ltd., Hefei, China
| | - Xuecai Luo
- Hefei Tingxiandu Biological Technology Co., Ltd., Hefei, China
| | - Yu Pan
- School of Life Sciences, Anhui University, Hefei, China
| | - Zai Zheng
- School of Life Sciences, Anhui University, Hefei, China
| | - Ruochun Yin
- School of Life Sciences, Anhui University, Hefei, China
| | - Xiaohe Tian
- School of Life Sciences, Anhui University, Hefei, China
| | - Liang Zhang
- National Engineering Laboratory for Cereal Fermentation Technology, Jiangnan University, Wuxi, China
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4
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Marzall-Pereira M, Savi DC, Bruscato EC, Niebisch CH, Paba J, Aluízio R, Ferreira-Maba LS, Galli-Terasawa LV, Glienke C, Kava V. Neopestalotiopsis species presenting wide dye destaining activity: report of a mycelium-associated laccase. Microbiol Res 2019; 228:126299. [PMID: 31422231 DOI: 10.1016/j.micres.2019.126299] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 07/09/2019] [Accepted: 07/12/2019] [Indexed: 01/26/2023]
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5
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Almeida PH, Oliveira ACCDE, Souza GPNDE, Friedrich JC, Linde GA, Colauto NB, Valle JSDO. Decolorization of remazol brilliant blue R with laccase from Lentinus crinitus grown in agro-industrial by-products. AN ACAD BRAS CIENC 2018; 90:3463-3473. [PMID: 29947669 DOI: 10.1590/0001-3765201820170458] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 03/05/2018] [Indexed: 11/22/2022] Open
Abstract
Lentinus crinitus is a white-rot fungus that produces laccase, an enzyme used for dye decolorization. Enzyme production depends on cultivation conditions, mainly agro-industrial by-products. We aimed to produce laccase from Lentinus crinitus with agro-industrial by-products for dye decolorization. Culture medium had coffee husk (CH) or citric pulp pellet (CP) and different nitrogen sources (urea, yeast extract, ammonium sulfate and sodium nitrate) at concentrations of 0, 0.7, 1.4, 2.8, 5.6 and 11.2 g/L. Enzymatic extract was used in the decolorization of remazol brilliant blue R. CH medium promoted greater laccase production than CP in all evaluated conditions. Urea provided the greatest laccase production for CH (37280 U/L) as well as for CP (34107 U/L). In CH medium, laccase activity was suppressed when carbon-to-nitrogen ratio changed from 4.5 to 1.56, but the other nitrogen concentrations did not affect laccase activity. For CP medium, reduction in carbon-to-nitrogen ratio from 6 to 1.76 increased laccase activity in 17%. The peak of laccase activity in CH medium occurred on the 11th day (41246 U/L) and in CP medium on the 12th day (32660 U/L). The maximum decolorization within 24 h was observed with CP enzymatic extract (74%) and with CH extract (76%).
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Affiliation(s)
- Patrícia H Almeida
- Programa de Pós-Graduação em Biotecnologia Aplicada à Agricultura, Universidade Paranaense, Praça Mascarenhas de Moraes, 4282, 87502-210 Umuarama, PR, Brazil
| | - Ana Carolina C DE Oliveira
- Programa de Pós-Graduação em Biotecnologia Aplicada à Agricultura, Universidade Paranaense, Praça Mascarenhas de Moraes, 4282, 87502-210 Umuarama, PR, Brazil
| | - Genyfer P N DE Souza
- Programa de Pós-Graduação em Biotecnologia Aplicada à Agricultura, Universidade Paranaense, Praça Mascarenhas de Moraes, 4282, 87502-210 Umuarama, PR, Brazil
| | - Juliana C Friedrich
- Programa de Pós-Graduação em Biotecnologia Aplicada à Agricultura, Universidade Paranaense, Praça Mascarenhas de Moraes, 4282, 87502-210 Umuarama, PR, Brazil
| | - Giani A Linde
- Programa de Pós-Graduação em Biotecnologia Aplicada à Agricultura, Universidade Paranaense, Praça Mascarenhas de Moraes, 4282, 87502-210 Umuarama, PR, Brazil
| | - Nelson B Colauto
- Programa de Pós-Graduação em Biotecnologia Aplicada à Agricultura, Universidade Paranaense, Praça Mascarenhas de Moraes, 4282, 87502-210 Umuarama, PR, Brazil
| | - Juliana S DO Valle
- Programa de Pós-Graduação em Biotecnologia Aplicada à Agricultura, Universidade Paranaense, Praça Mascarenhas de Moraes, 4282, 87502-210 Umuarama, PR, Brazil
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6
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Rational design for fungal laccase production in the model host Aspergillus nidulans. SCIENCE CHINA-LIFE SCIENCES 2018; 62:84-94. [DOI: 10.1007/s11427-017-9304-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Accepted: 03/12/2018] [Indexed: 12/20/2022]
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7
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Fonseca M, Molina M, Winnik D, Busi M, Fariña J, Villalba L, Zapata P. Isolation of a laccase-coding gene from the lignin-degrading fungusPhlebia brevisporaBAFC 633 and heterologous expression inPichia pastoris. J Appl Microbiol 2018; 124:1454-1468. [DOI: 10.1111/jam.13720] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 01/26/2018] [Accepted: 01/29/2018] [Indexed: 11/28/2022]
Affiliation(s)
- M.I. Fonseca
- Laboratorio de Biotecnología Molecular; Instituto de Biotecnología Misiones; Facultad de Ciencias Exactas Químicas y Naturales; Universidad Nacional de Misiones; Posadas Misiones Argentina
| | - M.A. Molina
- Laboratorio de Biotecnología Molecular; Instituto de Biotecnología Misiones; Facultad de Ciencias Exactas Químicas y Naturales; Universidad Nacional de Misiones; Posadas Misiones Argentina
| | - D.L. Winnik
- Laboratorio de Biotecnología Molecular; Instituto de Biotecnología Misiones; Facultad de Ciencias Exactas Químicas y Naturales; Universidad Nacional de Misiones; Posadas Misiones Argentina
| | - M.V. Busi
- Centro de Estudios Fotosintéticos y Bioquímicos (CEFOBI-CONICET); Universidad Nacional de Rosario; Rosario Argentina
| | - J.I. Fariña
- Laboratorio de Biotecnología Fúngica; PROIMI-CONICET; Tucumán Argentina
| | - L.L. Villalba
- Laboratorio de Biotecnología Molecular; Instituto de Biotecnología Misiones; Facultad de Ciencias Exactas Químicas y Naturales; Universidad Nacional de Misiones; Posadas Misiones Argentina
| | - P.D. Zapata
- Laboratorio de Biotecnología Molecular; Instituto de Biotecnología Misiones; Facultad de Ciencias Exactas Químicas y Naturales; Universidad Nacional de Misiones; Posadas Misiones Argentina
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8
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Piscitelli A, Tarallo V, Guarino L, Sannia G, Birolo L, Pezzella C. New lipases by mining of Pleurotus ostreatus genome. PLoS One 2017; 12:e0185377. [PMID: 28945798 PMCID: PMC5612753 DOI: 10.1371/journal.pone.0185377] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 09/12/2017] [Indexed: 11/19/2022] Open
Abstract
The analysis of Pleurotus ostreatus genome reveals the presence of automatically annotated 53 lipase and 34 carboxylesterase putative coding-genes. Since no biochemical or physiological data are available so far, a functional approach was applied to identify lipases from P. ostreatus. In the tested growth conditions, four lipases were found expressed, with different patterns depending on the used C source. Two of the four identified proteins (PleoLip241 and PleoLip369), expressed in both analysed conditions, were chosen for further studies, such as an in silico analysis and their molecular characterization. To overcome limits linked to native production, a recombinant expression approach in the yeast Pichia pastoris was applied. Different expression levels were obtained: PleoLip241 reached a maximum activity of 4000 U/L, whereas PleoLip369 reached a maximum activity of 700 U/L. Despite their sequence similarity, these enzymes exhibited different substrate specificity and diverse stability at pH, temperature, and presence of metals, detergents and organic solvents. The obtained data allowed classifying PleoLip241 as belonging to the “true lipase” family. Indeed, by phylogenetic analysis the two proteins fall in different clusters. PleoLip241 was used to remove the hydrophobic layer from wool surface in order to improve its dyeability. The encouraging results obtained with lipase treated wool led to forecast PleoLip241 applicability in this field.
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Affiliation(s)
- Alessandra Piscitelli
- Dipartimento di Scienze Chimiche, Università degli Studi di Napoli Federico II, Napoli, Italy
- * E-mail:
| | - Vincenzo Tarallo
- Dipartimento di Scienze Chimiche, Università degli Studi di Napoli Federico II, Napoli, Italy
| | - Lucia Guarino
- Dipartimento di Scienze Chimiche, Università degli Studi di Napoli Federico II, Napoli, Italy
| | - Giovanni Sannia
- Dipartimento di Scienze Chimiche, Università degli Studi di Napoli Federico II, Napoli, Italy
| | - Leyla Birolo
- Dipartimento di Scienze Chimiche, Università degli Studi di Napoli Federico II, Napoli, Italy
| | - Cinzia Pezzella
- Dipartimento di Scienze Chimiche, Università degli Studi di Napoli Federico II, Napoli, Italy
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9
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Cambri G, de Sousa MML, Fonseca DDM, Marchini FK, da Silveira JLM, Paba J. Analysis of the Biotechnological Potential of a Lentinus crinitus Isolate in the Light of Its Secretome. J Proteome Res 2016; 15:4557-4568. [DOI: 10.1021/acs.jproteome.6b00636] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Geison Cambri
- Departamento
de Bioquímica, Setor de Ciências Biológicas,
Centro Politécnico, Universidade Federal do Paraná, 81531-990 Curitiba-PR, Brazil
| | - Mirta Mittelstedt Leal de Sousa
- Department
of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, NTNU, N-7491 Trondheim, Norway
| | - Davi de Miranda Fonseca
- Department
of Cancer Research and Molecular Medicine, Norwegian University of Science and Technology, NTNU, N-7491 Trondheim, Norway
- Proteomics
and Metabolomics Core Facility (PROMEC), Norwegian University of Science and Technology, NTNU, N-7491 Trondheim, Norway
| | - Fabricio K. Marchini
- Laboratório
de Genômica Funcional, Instituto Carlos Chagas, Fundação Oswaldo Cruz, 81350-010 Curitiba-PR, Brazil
| | - Joana Lea Meira da Silveira
- Departamento
de Bioquímica, Setor de Ciências Biológicas,
Centro Politécnico, Universidade Federal do Paraná, 81531-990 Curitiba-PR, Brazil
| | - Jaime Paba
- Departamento
de Bioquímica, Setor de Ciências Biológicas,
Centro Politécnico, Universidade Federal do Paraná, 81531-990 Curitiba-PR, Brazil
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10
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Mycoremediation with mycotoxin producers: a critical perspective. Appl Microbiol Biotechnol 2015; 100:17-29. [DOI: 10.1007/s00253-015-7032-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Revised: 09/08/2015] [Accepted: 09/10/2015] [Indexed: 12/18/2022]
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11
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Microbial enzyme systems for lignin degradation and their transcriptional regulation. ACTA ACUST UNITED AC 2014. [DOI: 10.1007/s11515-014-1336-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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12
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Laccase production and metabolic diversity among Flammulina velutipes strains. World J Microbiol Biotechnol 2014; 31:121-33. [PMID: 25377764 PMCID: PMC4282699 DOI: 10.1007/s11274-014-1769-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Accepted: 10/31/2014] [Indexed: 10/26/2022]
Abstract
Twelve Flammulina velutipes strains originating from Poland were identified using internal transcribed spacer (ITS) region sequencing. Based on the sequences obtained, the genomic relationship of the analyzed strains was determined. All F. velutipes strains were also characterized using Biolog FF MicroPlates to obtain data on C-substrate utilization and mitochondrial activity. The ability to decompose various substrates differed among the F. velutipes strains up to five times. The highest catabolic activities were characteristic for only two strains with capabilities to decompose up to 22 carbon sources. The correlation between carbon repression and laccase production by F. velutipes was analyzed based on glucose assimilation by these strains. Moreover, the influence of metal ions (Cu(2+), Cd(2+)), veratric and ferulic acids, and temperature on laccase activities in the analyzed strains was determined. The results obtained proved that all the inducers influenced laccase expression in almost all the analyzed strains. However, the degree of induction depended not only on the strain used but also on the day of the induction.
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13
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Yang J, Lin Q, Ng TB, Ye X, Lin J. Purification and characterization of a novel laccase from Cerrena sp. HYB07 with dye decolorizing ability. PLoS One 2014; 9:e110834. [PMID: 25356987 PMCID: PMC4214704 DOI: 10.1371/journal.pone.0110834] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Accepted: 09/25/2014] [Indexed: 11/26/2022] Open
Abstract
Laccases (EC 1.10.3.2) are a class of multi-copper oxidases with important industrial values. A basidiomycete strain Cerrena sp. HYB07 with high laccase yield was identified. After cultivation in the shaking flask for 4 days, a maximal activity of 210.8 U mL−1 was attained. A 58.6-kDa laccase (LacA) with 7.2% carbohydrate and a specific activity of 1952.4 U mg−1 was purified. 2,2′-Azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) was the optimal substrate, with Km and kcat being 93.4 µM and 2468.0 s−1, respectively. LacA was stable at 60°C, pH 5.0 and above, and in organic solvents. Metal ions Na+, K+, Ca2+, Mg2+, Mn2+, Zn2+ enhanced LacA activity, while Fe2+ and Li+ inhibited LacA activity. LacA decolorized structurally different dyes and a real textile effluent. Its gene and cDNA sequences were obtained. Putative cis-acting transcriptional response elements were identified in the promoter region. The high production yield and activity, robustness and dye decolorizing capacity make LacA and Cerrena sp. HYB07 potentially useful for industrial and environmental applications such as textile finishing and wastewater treatment.
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Affiliation(s)
- Jie Yang
- College of Biological Sciences and Technology, Fuzhou University, Fuzhou, Fujian, China
- National Engineering Laboratory for Enzyme Expression, Fuzhou, Fujian, China
| | - Qi Lin
- College of Biological Sciences and Technology, Fuzhou University, Fuzhou, Fujian, China
| | - Tzi Bun Ng
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Xiuyun Ye
- College of Biological Sciences and Technology, Fuzhou University, Fuzhou, Fujian, China
- National Engineering Laboratory for Enzyme Expression, Fuzhou, Fujian, China
| | - Juan Lin
- College of Biological Sciences and Technology, Fuzhou University, Fuzhou, Fujian, China
- National Engineering Laboratory for Enzyme Expression, Fuzhou, Fujian, China
- * E-mail:
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14
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Tanesaka E, Takeda H, Yoshida M. Phenol-oxidizing enzyme expression in Lentinula edodes by the addition of sawdust extract, aromatic compounds, or copper in liquid culture media. Biocontrol Sci 2013; 18:143-9. [PMID: 24077537 DOI: 10.4265/bio.18.143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
This study examined how the addition of a sawdust extract from Castanopsis cuspidata, several aromatic compounds, and copper affected the expression of a phenol-oxidizing enzyme in the white-rot basidiomycete, Lentinula edodes. Compared to liquid media that had not been supplemented with sawdust extract (MYPG), MYPG containing low (MYPG-S100) or high (MYPG-S500) concentrations of sawdust extract had a marked effect on the promotion of mycelial growth. No manganese peroxidase (MnP) production was observed in either MYPG or MYPG-S100 media until 35 days after inoculation. However, MnP production was enhanced by culture in MYPG-S500, with a marked increase observed suddenly at 14 days after inoculation. Northern blot analysis revealed that the transcription of the lemnp2 gene coding extracellular MnP was initially observed at detectable levels at day 10 after the initial inoculation of MYPG-S500, increasing gradually thereafter until days 22-25. However, laccase (Lcc) production was not observed in any of the media until 35 days after inoculation. Addition of 10 mM aromatic compounds - 1,2-benzenediol, 2-methoxyphenol, hydroquinone, and 4-anisidine--into the MYPG-S500 medium completely inhibited MnP production and did not enhance any Lcc production. While the addition of 1 or 2 mM Cu2+ (CuSO4 x 5H2O) to MYPG-S500 medium completely inhibited MnP production, this Cu2+ addition caused a marked increase in Lcc production at 17 and 6 days after the addition, respectively.
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15
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Mäkelä MR, Lundell T, Hatakka A, Hildén K. Effect of copper, nutrient nitrogen, and wood-supplement on the production of lignin-modifying enzymes by the white-rot fungus Phlebia radiata. Fungal Biol 2012; 117:62-70. [PMID: 23332834 DOI: 10.1016/j.funbio.2012.11.006] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2012] [Revised: 11/06/2012] [Accepted: 11/26/2012] [Indexed: 11/15/2022]
Abstract
Production of the oxidoreductive lignin-modifying enzymes - lignin and manganese peroxidases (MnPs), and laccase - of the white-rot basidiomycete Phlebia radiata was investigated in semi-solid cultures supplemented with milled grey alder or Norway spruce and charcoal. Concentrations of nutrient nitrogen and Cu-supplement varied also in the cultures. According to extracellular activities, production of both lignin peroxidase (LiP) and MnP was significantly promoted with wood as carbon source, with milled alder (MA) and low nitrogen (LN) resulting with the maximal LiP activities (550 nkat l(-1)) and noticeable levels of MnP (3 μkat l(-1)). Activities of LiP and MnP were also elevated on high nitrogen (HN) complex medium when supplemented with spruce and charcoal. Maximal laccase activities (22 and 29 μkat l(-1)) were obtained in extra high nitrogen (eHN) containing defined and complex media supplemented with 1.5 mM Cu(2+). However, the nitrogen source, either peptone or ammonium nitrate and asparagine, caused no stimulation on laccase production without Cu-supplement. This is also the first report to demonstrate a new, on high Cu(2+) amended medium produced extracellular laccase of P. radiata with pI value of 4.9, thereby complementing our previous findings on gene expression, and cloning of a second laccase of this fungus.
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Affiliation(s)
- Miia R Mäkelä
- Department of Food and Environmental Sciences, Division of Microbiology, Viikki Biocenter 1, FIN-00014 Helsinki, Finland.
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16
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Effective induction of pblac1 laccase by copper ion in Polyporus brumalis ibrc05015. Fungal Biol 2012; 117:52-61. [PMID: 23332833 DOI: 10.1016/j.funbio.2012.11.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2012] [Revised: 11/06/2012] [Accepted: 11/23/2012] [Indexed: 11/24/2022]
Abstract
Polyporus brumalis ibrc05015 is a strain capable of high laccase (Lac) production. Among several inducers, 0.25 mM copper was most effective for Lac production. One of the Lacs induced by copper was PbLac1, and its transcription was induced within 60 min after copper addition. The promoter region of pblac1 contained six putative metal response elements and one Ace1 consensus cis-element. We cloned the P. brumalis PbAce1 transcription factor, a homologue of Saccharomyces cerevisiae transcription factor Ace1, which regulates metallothionein genes in response to excess copper. PbAce1 complemented the function of Ace1 in an S. cerevisiae Δace strain. The conserved N-terminal copper-fist DNA binding domain of PbAce1 was required for complementation. In the PbAce1 complemented Δace1 strain, the pblac1 promoter was constitutively expressed at a high level, independent of copper concentration. PbAce1 has two Cys-rich repeat motifs (PbC1 and PbC2), which are similar to the Cys-rich repeat domain in metallothionein proteins, and are uniquely conserved in the C-terminal domain of basidiomycetous Ace1 sequences. These C-terminal domains could be involved in copper sensing and concentration-dependent Lac production in basidiomycetous fungi.
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Amore A, Honda Y, Faraco V. Copper induction of enhanced green fluorescent protein expression inPleurotus ostreatusdriven by laccasepoxa1bpromoter. FEMS Microbiol Lett 2012; 337:155-63. [DOI: 10.1111/1574-6968.12023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2012] [Revised: 10/01/2012] [Accepted: 10/02/2012] [Indexed: 10/27/2022] Open
Affiliation(s)
- Antonella Amore
- Department of Chemical Sciences; University of Naples ‘Federico II’; Complesso Universitario Monte S. Angelo; Napoli; Italy
| | - Yoichi Honda
- Graduate School of Agriculture; Kyoto University; Kyoto; Japan
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Piscitelli A, Giardina P, Lettera V, Pezzella C, Sannia G, Faraco V. Induction and transcriptional regulation of laccases in fungi. Curr Genomics 2011; 12:104-12. [PMID: 21966248 PMCID: PMC3129044 DOI: 10.2174/138920211795564331] [Citation(s) in RCA: 181] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2011] [Revised: 03/01/2011] [Accepted: 03/14/2011] [Indexed: 11/22/2022] Open
Abstract
Fungal laccases are phenol oxidases widely studied for their use in several industrial applications, including pulp bleaching in paper industry, dye decolourisation, detoxification of environmental pollutants and revalorization of wastes and wastewaters. The main difficulty in using these enzymes at industrial scale ensues from their production costs. Elucidation of the components and the mechanisms involved in regulation of laccase gene expression is crucial for increasing the productivity of native laccases in fungi. Laccase gene transcription is regulated by metal ions, various aromatic compounds related to lignin or lignin derivatives, nitrogen and carbon sources. In this manuscript, most of the published results on fungal laccase induction, as well as analyses of both the sequences and putative functions of laccase gene promoters are reviewed. Analyses of promoter sequences allow defining a correlation between the observed regulatory effects on laccase gene transcription and the presence of specific responsive elements, and postulating, in some cases, a mechanism for their functioning. Only few reports have investigated the molecular mechanisms underlying laccase regulation by different stimuli. The reported analyses suggest the existence of a complex picture of laccase regulation phenomena acting through a variety of cis acting elements. However, the general mechanisms for laccase transcriptional regulation are far from being unravelled yet.
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Affiliation(s)
| | | | | | | | | | - Vincenza Faraco
- University of Naples “Federico II”, Dipartimento di Chimica Organica e Biochimica, Complesso Universitario Monte S. Angelo, via Cintia 4, 80126 Napoli, Italy
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Kües U, Rühl M. Multiple multi-copper oxidase gene families in basidiomycetes - what for? Curr Genomics 2011; 12:72-94. [PMID: 21966246 PMCID: PMC3129051 DOI: 10.2174/138920211795564377] [Citation(s) in RCA: 102] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2011] [Revised: 03/11/2011] [Accepted: 03/14/2011] [Indexed: 11/22/2022] Open
Abstract
Genome analyses revealed in various basidiomycetes the existence of multiple genes for blue multi-copper oxidases (MCOs). Whole genomes are now available from saprotrophs, white rot and brown rot species, plant and animal pathogens and ectomycorrhizal species. Total numbers (from 1 to 17) and types of mco genes differ between analyzed species with no easy to recognize connection of gene distribution to fungal life styles. Types of mco genes might be present in one and absent in another fungus. Distinct types of genes have been multiplied at speciation in different organisms. Phylogenetic analysis defined different subfamilies of laccases sensu stricto (specific to Agaricomycetes), classical Fe2+-oxidizing Fet3-like ferroxidases, potential ferroxidases/laccases exhibiting either one or both of these enzymatic functions, enzymes clustering with pigment MCOs and putative ascorbate oxidases. Biochemically best described are laccases sensu stricto due to their proposed roles in degradation of wood, straw and plant litter and due to the large interest in these enzymes in biotechnology. However, biological functions of laccases and other MCOs are generally little addressed. Functions in substrate degradation, symbiontic and pathogenic intercations, development, pigmentation and copper homeostasis have been put forward. Evidences for biological functions are in most instances rather circumstantial by correlations of expression. Multiple factors impede research on biological functions such as difficulties of defining suitable biological systems for molecular research, the broad and overlapping substrate spectrum multi-copper oxidases usually possess, the low existent knowledge on their natural substrates, difficulties imposed by low expression or expression of multiple enzymes, and difficulties in expressing enzymes heterologously.
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Affiliation(s)
- Ursula Kües
- University of Goettingen, Büsgen-Institute, Division of Molecular Wood Biotechnology and Technical Mycology, Büsgenweg 2, 37077 Goettingen, Germany
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Molecular and structural modeling of the Phanerochaete flavido-alba extracellular laccase reveals its ferroxidase structure. Arch Microbiol 2010; 192:883-92. [DOI: 10.1007/s00203-010-0616-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2010] [Revised: 07/31/2010] [Accepted: 08/05/2010] [Indexed: 10/19/2022]
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21
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Pezzella C, Autore F, Giardina P, Piscitelli A, Sannia G, Faraco V. The Pleurotus ostreatus laccase multi-gene family: isolation and heterologous expression of new family members. Curr Genet 2008; 55:45-57. [DOI: 10.1007/s00294-008-0221-y] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2008] [Revised: 11/03/2008] [Accepted: 11/08/2008] [Indexed: 10/21/2022]
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de la Rubia T, Lucas M, Martínez J. Controversial role of fungal laccases in decreasing the antibacterial effect of olive mill waste-waters. BIORESOURCE TECHNOLOGY 2008; 99:1018-25. [PMID: 17462887 DOI: 10.1016/j.biortech.2007.03.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2006] [Revised: 03/01/2007] [Accepted: 03/02/2007] [Indexed: 05/15/2023]
Abstract
Antibacterial diffusion tests (against Bacillus megaterium) detected both bacterial growth-promoting and growth-inhibiting components in olive mill waste-water (OMW). Mixtures of OMW aromatic components showed antibacterial effects that did not show antibacterial activity when tested as individual compounds. Strains of white rot fungi (WRF) producing different patterns of lignin modifying enzymes (LMEs) have been evaluated for OMW remediation under nutritional conditions affecting the LMEs produced. The decrease of both the content in OMW phenols and in the OMW antibacterial activity was compared with fungal growth and LMEs production. OMW addition to the cultures increased fungal growth and laccase activity irrespectively of the nutritional conditions of the cultures. Laccase was the sole LME activity that increased after OMW addition to the cultures. Neither the increased growth of WRF in OMW-containing cultures, their content in laccase nor the amount of OMW phenols were direct indications of a greater decrease in OMW antibacterial effect. The higher decrease in OMW antibacterial activity was obtained in cultures of Phanerochaete flavido-alba in an N-rich media.
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Affiliation(s)
- T de la Rubia
- Department of Microbiology, Faculty of Pharmacy, University of Granada, Campus Cartuja, 18071 Granada, Spain
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The copper-dependent ACE1 transcription factor activates the transcription of the mco1 gene from the basidiomycete Phanerochaete chrysosporium. Microbiology (Reading) 2008; 154:491-499. [DOI: 10.1099/mic.0.2007/013128-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Faraco V, Piscitelli A, Sannia G, Giardina P. Identification of a new member of the dye-decolorizing peroxidase family from Pleurotus ostreatus. World J Microbiol Biotechnol 2006. [DOI: 10.1007/s11274-006-9303-5] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Tetsch L, Bend J, Hölker U. Molecular and enzymatic characterisation of extra- and intracellular laccases from the acidophilic ascomycete Hortaea acidophila. Antonie Van Leeuwenhoek 2006; 90:183-94. [PMID: 16871425 DOI: 10.1007/s10482-006-9064-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2005] [Accepted: 02/03/2006] [Indexed: 11/29/2022]
Abstract
The pigmented ascomycete Hortaea acidophila is able to grow at a pH as low as 0.6 and produces laccases that are involved in melanin synthesis. We now present data on an extracellular and an intracellular laccase which exhibit a high stability at low pH. Furthermore, the optimum for enzyme acitivity is extraordinarily low with pH 1.5 for the intracellular laccase with 2,6-dimethoxyphenol (DMOP) as substrate. Two complete laccase gene sequences of H. acidophila were amplified by inverse polymerase chain reaction (PCR). Whereas the deduced protein laccase I contains an predicted N-terminal signal sequence for protein export, laccase II does not and thus may represent the intracellular laccase. The acidophilic character of both laccases seems to be reflected in their primary structure.
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Affiliation(s)
- Larissa Tetsch
- Institut für Zelluläre und Molekulare Botanik, Rheinische Friedrich-Wilhelms-Universität, Kirschallee 1, Bonn, Germany
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Mooney A, O'Leary ND, Dobson ADW. Cloning and functional characterization of the styE gene, involved in styrene transport in Pseudomonas putida CA-3. Appl Environ Microbiol 2006; 72:1302-9. [PMID: 16461680 PMCID: PMC1392900 DOI: 10.1128/aem.72.2.1302-1309.2006] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
A 1.5-kb region immediately downstream of the styABCD operon involved in styrene degradation in Pseudomonas putida CA-3 has been cloned. Sequence analysis revealed a 1,296-bp open reading frame, designated styE, and BLAST P database comparisons of the deduced StyE amino acid sequence revealed 33 to 98% identity with several membrane-associated ATPase-dependent kinase proteins involved in the active transport of aromatic hydrocarbons across bacterial membranes and also with FadL, an outer membrane protein necessary for the uptake of long-chain fatty acids in Escherichia coli. Transcription of styE is styrene dependent, and the gene is cotranscribed with the styABCD structural genes. StyE appears to be membrane associated, with a corresponding 45.9-kDa band being identified following sodium dodecyl sulfate-polyacrylamide gel electrophoresis analysis of membrane preparations from styrene-grown cells. P. putida CA-3 cells in which the styE gene had been interrupted were no longer capable of growth on styrene. In contrast, overexpression of styE in P. putida CA-3 resulted in a 4.2-fold increase in styrene monooxygenase activity compared with wild-type cells grown on styrene, with a concomitant 8-fold increase in styA mRNA transcript levels. Experiments with the classic, ATPase inhibitor vanadate revealed that growth of wild-type cells on styrene was inhibited at a concentration of 1 mM, while 1.75 mM was required to achieve a similar effect in the StyE overexpression strain. Growth of either strain on citrate was not inhibited in the presence of up to 7 mM vanadate. These findings suggest a role for StyE in the active transport of styrene in Pseudomonas putida CA-3 and identify styrene transport as a potentially limiting factor with respect to mRNA transcript levels and associated enzymatic activity of the styrene degradative pathway.
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Affiliation(s)
- Aisling Mooney
- Microbiology Department and Environmental Research Institute, University College Cork, National University of Ireland, Cork, Ireland
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