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Zhang L, Li J, Lai JL, Yang X, Zhang Y, Luo XG. Non-targeted metabolomics reveals the stress response of a cellulase-containing penicillium to uranium. J Environ Sci (China) 2022; 120:9-17. [PMID: 35623776 DOI: 10.1016/j.jes.2021.12.043] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 12/29/2021] [Accepted: 12/29/2021] [Indexed: 06/15/2023]
Abstract
Human industrial activities have caused environmental uranium (U) pollution, resulting in uranium(VI) had radiotoxicity and chemical toxicity. Here, a cellulase-producing Penicillium fungus was screened and characterized by X-ray fluorescence (XRF), and Fourier transform infrared reflection (FT-IR), as well as by GC/MS metabolomics analysis, to study the response to uranium(VI) stress. The biomass of Penicillium decreased after exposure to 100 mg/L U. Uranium combined with carboxyl groups, amino groups, and phosphate groups to form uranium mineralized deposits on the surface of this fungal strain. The α-activity concentration of uranium in the strain was 2.57×106 Bq/kg, and the β-activity concentration was 2.27×105 Bq/kg. Metabolomics analysis identified 118 different metabolites, as well as metabolic disruption of organic acids and derivatives. Further analysis showed that uranium significantly affected the metabolism of 9 amino acids in Penicillium. These amino acids were related to the TCA cycle and ABC transporter. At the same time, uranium exhibited nucleotide metabolism toxicity to Penicillium. This study provides an in-depth understanding of the uranium tolerance mechanism of Penicillium and provides a theoretical basis for Penicillium to degrade hyper-enriched plants.
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Affiliation(s)
- Li Zhang
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China
| | - Jie Li
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China
| | - Jin-Long Lai
- Engineering Research Center of Biomass Materials, Ministry of Education of, SWUST, Mianyang 621010, China
| | - Xu Yang
- School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, China
| | - Yu Zhang
- Engineering Research Center of Biomass Materials, Ministry of Education of, SWUST, Mianyang 621010, China.
| | - Xue-Gang Luo
- Engineering Research Center of Biomass Materials, Ministry of Education of, SWUST, Mianyang 621010, China
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2
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Biochemical characterization of a thermally stable, acidophilic and surfactant-tolerant xylanase from Aspergillus awamori AFE1 and hydrolytic efficiency of its immobilized form. Process Biochem 2022. [DOI: 10.1016/j.procbio.2022.06.030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Arnthong J, Siamphan C, Chuaseeharonnachai C, Boonyuen N, Suwannarangsee S. Towards a Miniaturized Culture Screening for Cellulolytic Fungi and Their Agricultural Lignocellulosic Degradation. J Microbiol Biotechnol 2020; 30:1670-1679. [PMID: 32876068 PMCID: PMC9728337 DOI: 10.4014/jmb.2007.07005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 08/24/2020] [Accepted: 08/25/2020] [Indexed: 12/15/2022]
Abstract
The substantial use of fungal enzymes to degrade lignocellulosic plant biomass has widely been attributed to the extensive requirement of powerful enzyme-producing fungal strains. In this study, a two-step screening procedure for finding cellulolytic fungi, involving a miniaturized culture method with shake-flask fermentation, was proposed and demonstrated. We isolated 297 fungal strains from several cellulose-containing samples found in two different locations in Thailand. By using this screening strategy, we then selected 9 fungal strains based on their potential for cellulase production. Through sequence-based identification of these fungal isolates, 4 species in 4 genera were identified: Aspergillus terreus (3 strains: AG466, AG438 and AG499), Penicillium oxalicum (4 strains: AG452, AG496, AG498 and AG559), Talaromyces siamensis (1 strain: AG548) and Trichoderma afroharzianum (1 strain: AG500). After examining their lignocellulose degradation capacity, our data showed that P. oxalicum AG452 exhibited the highest glucose yield after saccharification of pretreated sugarcane trash, cassava pulp and coffee silverskin. In addition, Ta. siamensis AG548 produced the highest glucose yield after hydrolysis of pretreated sugarcane bagasse. Our study demonstrated that the proposed two-step screening strategy can be further applied for discovering potential cellulolytic fungi isolated from various environmental samples. Meanwhile, the fungal strains isolated in this study will prove useful in the bioconversion of agricultural lignocellulosic residues into valuable biotechnological products.
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Affiliation(s)
- Jantima Arnthong
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), 113 Thailand Science Park, Klong Luang, Pathumthani 12120, Thailand
| | - Chatuphon Siamphan
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), 113 Thailand Science Park, Klong Luang, Pathumthani 12120, Thailand
| | - Charuwan Chuaseeharonnachai
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), 113 Thailand Science Park, Klong Luang, Pathumthani 12120, Thailand
| | - Nattawut Boonyuen
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), 113 Thailand Science Park, Klong Luang, Pathumthani 12120, Thailand
| | - Surisa Suwannarangsee
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), 113 Thailand Science Park, Klong Luang, Pathumthani 12120, Thailand,Corresponding author Phone: +66-2564 6700 Fax: +66-2564-6700 E-mail:
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Nanjundaswamy A, Okeke BC. Comprehensive Optimization of Culture Conditions for Production of Biomass-Hydrolyzing Enzymes of Trichoderma SG2 in Submerged and Solid-State Fermentation. Appl Biochem Biotechnol 2020; 191:444-462. [PMID: 32248370 DOI: 10.1007/s12010-020-03258-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 02/13/2020] [Indexed: 11/29/2022]
Abstract
Lignocellulose biomass contain large macromolecules especially cellulose and hemicelluloses that can be converted to fuel and chemicals using microbial biocatalysts. This study presents comprehensive optimization of production of biomass-hydrolyzing enzymes (BHE) by a high β-glucosidase-producing Trichoderma SG2 for bioconversion of lignocellulose biomass. Overall, a mixture of paper powder and switchgrass was most suited for production of BHE in submerged fermentation (SmF). BHE production was significantly different for various organic and inorganic nitrogen sources. The combination of peptone, yeast extract, and ammonium sulfate resulted in the highest activities (Units/mL) of BHE: 9.85 ± 0.55 cellulase, 38.91 ± 0.31 xylanase, 21.19 ± 1.35 β-glucosidase, and 7.63 ± 0.31 β-xylosidase. Surfactants comparably enhanced BHE production. The highest cellulase activity (4.86 ± 0.55) was at 25 °C, whereas 35 °C supported the highest activities of xylanase, β-glucosidase, and β-xylosidase. A broad initial culture pH (4-7) supported BHE production. The Topt for cellulase and xylanase was 50 °C. β-xylosidase and β-glucosidase were optimally active at 40 and 70 °C, respectively; pH 5 resulted in highest cellulase, β-glucosidase, and β-xylosidase activities; and pH 6 resulted in highest xylanase activity. Response surface methodology (RSM) was used to optimize major medium ingredients. BHE activities were several orders of magnitude higher in solid-state fermentation (SSF) than in SmF. Therefore, SSF can be deployed for one-step production of complete mixture of Trichoderma SG2 BHE for bioconversion of biomass to saccharide feedstock.
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Affiliation(s)
- Ananda Nanjundaswamy
- Bioprocessing and Biofuel Research Lab, Department of Biology and Environmental Science, Auburn University at Montgomery, Montgomery, AL, USA. .,Department of Agriculture, School of Agriculture and Applied Sciences, Alcorn State University, Lorman, MS, USA.
| | - Benedict C Okeke
- Bioprocessing and Biofuel Research Lab, Department of Biology and Environmental Science, Auburn University at Montgomery, Montgomery, AL, USA.
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Alokika, Singh B. Production, characteristics, and biotechnological applications of microbial xylanases. Appl Microbiol Biotechnol 2019; 103:8763-8784. [PMID: 31641815 DOI: 10.1007/s00253-019-10108-6] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 08/09/2019] [Accepted: 08/28/2019] [Indexed: 01/29/2023]
Abstract
Microbial xylanases have gathered great attention due to their biotechnological potential at industrial scale for many processes. A variety of lignocellulosic materials, such as sugarcane bagasse, rice straw, rice bran, wheat straw, wheat bran, corn cob, and ragi bran, are used for xylanase production which also solved the great issue of solid waste management. Both solid-state and submerged fermentation have been used for xylanase production controlled by various physical and nutritional parameters. Majority of xylanases have optimum pH in the range of 4.0-9.0 with optimum temperature at 30-60 °C. For biochemical, molecular studies and also for successful application in industries, purification and characterization of xylanase have been carried out using various appropriate techniques. Cloning and genetic engineering are used for commercial-level production of xylanase, to meet specific economic viability and industrial needs. Microbial xylanases are used in various biotechnological applications like biofuel production, pulp and paper industry, baking and brewing industry, food and feed industry, and deinking of waste paper. This review describes production, characteristics, and biotechnological applications of microbial xylanases.
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Affiliation(s)
- Alokika
- Laboratory of Bioprocess Technology, Department of Microbiology, Maharshi Dayanand University, Rohtak, Haryana, 124001, India
| | - Bijender Singh
- Laboratory of Bioprocess Technology, Department of Microbiology, Maharshi Dayanand University, Rohtak, Haryana, 124001, India. .,Department of Biotechnology, School of Interdisciplinary and Applied Life Sciences, Central University of Haryana, Jant-Pali, Mahendergarh, Haryana, 123031, India.
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Synergistic effects between the additions of a disulphide bridge and an N-terminal hydrophobic sidechain on the binding pocket tilting and enhanced Xyn11A activity. Arch Biochem Biophys 2019; 672:108068. [DOI: 10.1016/j.abb.2019.108068] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 07/20/2019] [Accepted: 08/07/2019] [Indexed: 11/22/2022]
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Biochemical Characteristics of Microbial Enzymes and Their Significance from Industrial Perspectives. Mol Biotechnol 2019; 61:579-601. [DOI: 10.1007/s12033-019-00187-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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8
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Gupta PK, Choudhary S, Chandrananthi C, Sharon Eveline J, Sushmitha SP, Hiremath L, Srivastava AK, Narendra Kumar S. Fungal Biodiversity Producing Xylanase Enzymes Involved in Efficient Uses of Xylanolysis. Fungal Biol 2019. [DOI: 10.1007/978-3-030-23834-6_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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9
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Varriale S, Houbraken J, Granchi Z, Pepe O, Cerullo G, Ventorino V, Chin-A-Woeng T, Meijer M, Riley R, Grigoriev IV, Henrissat B, de Vries RP, Faraco V. Talaromyces borbonicus, sp. nov., a novel fungus from biodegraded Arundo donax with potential abilities in lignocellulose conversion. Mycologia 2018; 110:316-324. [PMID: 29843575 DOI: 10.1080/00275514.2018.1456835] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A novel fungal species able to synthesize enzymes with potential synergistic actions in lignocellulose conversion was isolated from the biomass of Arundo donax during biodegradation under natural conditions in the Gussone Park of the Royal Palace of Portici (Naples, Italy). In this work, this species was subjected to morphological and phylogenetic analyses. Sequencing of its genome was performed, resulting in 28 scaffolds that were assembled into 27.05 Mb containing 9744 predicted genes, among which 396 belong to carbohydrate-active enzyme (CAZyme)-encoding genes. Here we describe and illustrate this previously unknown species, which was named Talaromyces borbonicus, by a polyphasic approach combining phenotypic, physiological, and sequence data.
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Affiliation(s)
- Simona Varriale
- a Department of Chemical Sciences , University of Naples Federico II, Complesso Universitario Monte S. Angelo , via Cintia, 4 80126 Naples , Italy
| | - Jos Houbraken
- b Department of Applied and Industrial Mycology , Westerdijk Fungal Biodiversity Institute , Uppsalalaan 8, 3584 CT Utrecht , The Netherlands
| | - Zoraide Granchi
- c GenomeScan B.V., Plesmanlaan 1/D, 2333 BZ Leiden , The Netherlands
| | - Olimpia Pepe
- d Department of Agricultural Sciences , University of Naples Federico II , Via Università 100, 80055 Portici (NA) , Italy
| | - Gabriella Cerullo
- a Department of Chemical Sciences , University of Naples Federico II, Complesso Universitario Monte S. Angelo , via Cintia, 4 80126 Naples , Italy
| | - Valeria Ventorino
- d Department of Agricultural Sciences , University of Naples Federico II , Via Università 100, 80055 Portici (NA) , Italy
| | | | - Martin Meijer
- b Department of Applied and Industrial Mycology , Westerdijk Fungal Biodiversity Institute , Uppsalalaan 8, 3584 CT Utrecht , The Netherlands
| | - Robert Riley
- f US Department of Energy Joint Genome Institute , 2800 Mitchell Drive, Walnut Creek , California 94598
| | - Igor V Grigoriev
- f US Department of Energy Joint Genome Institute , 2800 Mitchell Drive, Walnut Creek , California 94598
| | - Bernard Henrissat
- g Architecture et Fonction des Macromolécules Biologiques (AFMB), UMR 7257 CNRS , Université Aix-Marseille , 163 Avenue de Luminy, 13288 , Marseille , France.,h INRA, USC 1408 AFMB, 13288 , Marseille , France.,i Department of Biological Sciences , King Abdulaziz University , Jeddah , Saudi Arabia
| | - Ronald P de Vries
- j Department of Fungal Physiology , Westerdijk Fungal Biodiversity Institute , Uppsalalaan 8, 3584 CT Utrecht , The Netherlands.,k Department of Fungal Molecular Physiology , Utrecht University , Uppsalalaan 8, 3584 CT Utrecht , The Netherlands
| | - Vincenza Faraco
- a Department of Chemical Sciences , University of Naples Federico II, Complesso Universitario Monte S. Angelo , via Cintia, 4 80126 Naples , Italy
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