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Photodynamic treatment affects the secreted antioxidant and glycoside hydrolases activities produced by Humicola grisea var. thermoidea and Penicillium echinulatum in agro-industrial substrates. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY 2022. [DOI: 10.1016/j.jpap.2022.100147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Pagliuso D, Grandis A, de Sousa CR, de Souza AP, Driemeier C, Buckeridge MS. The Effect of Sugarcane Straw Aging in the Field on Cell Wall Composition. FRONTIERS IN PLANT SCIENCE 2021; 12:652168. [PMID: 34335640 PMCID: PMC8319731 DOI: 10.3389/fpls.2021.652168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 04/12/2021] [Indexed: 06/13/2023]
Abstract
Cellulosic ethanol is an alternative for increasing the amount of bioethanol production in the world. In Brazil, sugarcane leads the bioethanol production, and to improve its yield, besides bagasse, sugarcane straw is a possible feedstock. However, the process that leads to cell wall disassembly under field conditions is unknown, and understanding how this happens can improve sugarcane biorefinery and soil quality. In the present work, we aimed at studying how sugarcane straw is degraded in the field after 3, 6, 9, and 12 months. Non-structural and structural carbohydrates, lignin content, ash, and cellulose crystallinity were analyzed. The cell wall composition was determined by cell wall fractionation and determination of monosaccharide composition. Non-structural carbohydrates degraded quickly during the first 3 months in the field. Pectins and lignin remained in the plant waste for up to 12 months, while the hemicelluloses and cellulose decreased 7.4 and 12.4%, respectively. Changes in monosaccharide compositions indicated solubilization of arabinoxylan (xylose and arabinose) and β-glucans (β-1,3 1,4 glucan; after 3 months) followed by degradation of cellulose (after 6 months). Despite cellulose reduction, the xylose:glucose ratio increased, suggesting that glucose is consumed faster than xylose. The degradation and solubilization of the cell wall polysaccharides concomitantly increased the level of compounds related to recalcitrance, which led to a reduction in saccharification and an increase in minerals and ash contents. Cellulose crystallinity changed little, with evidence of silica at the latter stages, indicating mineralization of the material. Our data suggest that for better soil mineralization, sugarcane straw must stay in the field for over 1 year. Alternatively, for bioenergy purposes, straw should be used in less than 3 months.
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Affiliation(s)
- Débora Pagliuso
- Laboratory of Plant Physiological Ecology, Department of Botany, Institute of Biosciences, University of São Paulo, São Paulo, Brazil
| | - Adriana Grandis
- Laboratory of Plant Physiological Ecology, Department of Botany, Institute of Biosciences, University of São Paulo, São Paulo, Brazil
| | - Cristiane Ribeiro de Sousa
- Laboratory of Plant Physiological Ecology, Department of Botany, Institute of Biosciences, University of São Paulo, São Paulo, Brazil
| | - Amanda Pereira de Souza
- Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL, United States
| | - Carlos Driemeier
- Brazilian Biorenewables National Laboratory, Brazilian Center for Research in Energy and Materials, Campinas, Brazil
| | - Marcos S. Buckeridge
- Laboratory of Plant Physiological Ecology, Department of Botany, Institute of Biosciences, University of São Paulo, São Paulo, Brazil
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Roth JCG, Hoeltz M, Benitez LB. Current approaches and trends in the production of microbial cellulases using residual lignocellulosic biomass: a bibliometric analysis of the last 10 years. Arch Microbiol 2020; 202:935-951. [DOI: 10.1007/s00203-019-01796-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 11/19/2019] [Accepted: 12/15/2019] [Indexed: 12/30/2022]
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Kaliane SA, Vanessa NB, Tomás GRV, Tiago DSL, Olinto LP, Eduardo SGM, Marisa VDQ. Diversity of culturable endophytic fungi of Hevea guianensis: A latex producer native tree from the Brazilian Amazon. ACTA ACUST UNITED AC 2018. [DOI: 10.5897/ajmr2018.8980] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Ferreira Filho JA, Horta MAC, Beloti LL, Dos Santos CA, de Souza AP. Carbohydrate-active enzymes in Trichoderma harzianum: a bioinformatic analysis bioprospecting for key enzymes for the biofuels industry. BMC Genomics 2017; 18:779. [PMID: 29025413 PMCID: PMC5639747 DOI: 10.1186/s12864-017-4181-9] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2017] [Accepted: 10/05/2017] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Trichoderma harzianum is used in biotechnology applications due to its ability to produce powerful enzymes for the conversion of lignocellulosic substrates into soluble sugars. Active enzymes involved in carbohydrate metabolism are defined as carbohydrate-active enzymes (CAZymes), and the most abundant family in the CAZy database is the glycoside hydrolases. The enzymes of this family play a fundamental role in the decomposition of plant biomass. RESULTS In this study, the CAZymes of T. harzianum were identified and classified using bioinformatic approaches after which the expression profiles of all annotated CAZymes were assessed via RNA-Seq, and a phylogenetic analysis was performed. A total of 430 CAZymes (3.7% of the total proteins for this organism) were annotated in T. harzianum, including 259 glycoside hydrolases (GHs), 101 glycosyl transferases (GTs), 6 polysaccharide lyases (PLs), 22 carbohydrate esterases (CEs), 42 auxiliary activities (AAs) and 46 carbohydrate-binding modules (CBMs). Among the identified T. harzianum CAZymes, 47% were predicted to harbor a signal peptide sequence and were therefore classified as secreted proteins. The GH families were the CAZyme class with the greatest number of expressed genes, including GH18 (23 genes), GH3 (17 genes), GH16 (16 genes), GH2 (13 genes) and GH5 (12 genes). A phylogenetic analysis of the proteins in the AA9/GH61, CE5 and GH55 families showed high functional variation among the proteins. CONCLUSIONS Identifying the main proteins used by T. harzianum for biomass degradation can ensure new advances in the biofuel production field. Herein, we annotated and characterized the expression levels of all of the CAZymes from T. harzianum, which may contribute to future studies focusing on the functional and structural characterization of the identified proteins.
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Affiliation(s)
- Jaire Alves Ferreira Filho
- Center for Molecular Biology and Genetic Engineering (CBMEG), University of Campinas (UNICAMP), Campinas, SP, Brazil.,Graduate Program in Genetics and Molecular Biology, Institute of Biology, UNICAMP, Campinas, SP, Brazil
| | | | - Lilian Luzia Beloti
- Center for Molecular Biology and Genetic Engineering (CBMEG), University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Clelton Aparecido Dos Santos
- Center for Molecular Biology and Genetic Engineering (CBMEG), University of Campinas (UNICAMP), Campinas, SP, Brazil
| | - Anete Pereira de Souza
- Center for Molecular Biology and Genetic Engineering (CBMEG), University of Campinas (UNICAMP), Campinas, SP, Brazil. .,Department of Plant Biology, Institute of Biology, UNICAMP, Campinas, SP, Brazil.
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Barbosa PDPM, Speranza P, Ohara A, da Silva ÉB, de Angelis DA, Macedo GA. Fungi from Brazilian Savannah and Atlantic rainforest show high antibacterial and antifungal activity. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2017. [DOI: 10.1016/j.bcab.2017.01.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Souza ARCD, Baldoni DB, Lima J, Porto V, Marcuz C, Machado C, Ferraz RC, Kuhn RC, Jacques RJS, Guedes JVC, Mazutti MA. Selection, isolation, and identification of fungi for bioherbicide production. Braz J Microbiol 2017; 48:101-108. [PMID: 27769882 PMCID: PMC5220639 DOI: 10.1016/j.bjm.2016.09.004] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Accepted: 05/02/2016] [Indexed: 11/24/2022] Open
Abstract
Production of a bioherbicide for biological control of weeds requires a series of steps, from selection of a suitable microbial strain to final formulation. Thus, this study aimed to select fungi for production of secondary metabolites with herbicidal activity using biological resources of the Brazilian Pampa biome. Phytopathogenic fungi were isolated from infected tissues of weeds in the Pampa biome. A liquid synthetic culture medium was used for production of metabolites. The phytotoxicity of fungal metabolites was assessed via biological tests using the plant Cucumis sativus L., and the most promising strain was identified by molecular analysis. Thirty-nine fungi were isolated, and 28 presented some phytotoxic symptoms against the target plant. Fungus VP51 belonging to the genus Diaporthe showed the most pronounced herbicidal activity. The Brazilian Pampa biome is a potential resource for the development of new and sustainable chemical compounds for modern agriculture.
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Affiliation(s)
| | - Daiana Bortoluzzi Baldoni
- Universidade Federal de Santa Maria (UFSM), Departamento em ciência do solo, Santa Maria, RS, Brazil
| | - Jessica Lima
- Universidade Federal de Santa Maria (UFSM), Departamento de engenharia química, Santa Maria, RS, Brazil
| | - Vitória Porto
- Universidade Federal de Santa Maria (UFSM), Departamento de engenharia química, Santa Maria, RS, Brazil
| | - Camila Marcuz
- Universidade Federal de Santa Maria (UFSM), Departamento de engenharia química, Santa Maria, RS, Brazil
| | - Carolina Machado
- Universidade Federal de Santa Maria (UFSM), Departamento de engenharia química, Santa Maria, RS, Brazil
| | | | - Raquel C Kuhn
- Universidade Federal de Santa Maria (UFSM), Departamento de engenharia química, Santa Maria, RS, Brazil
| | - Rodrigo J S Jacques
- Universidade Federal de Santa Maria (UFSM), Departamento em ciência do solo, Santa Maria, RS, Brazil
| | - Jerson V C Guedes
- Universidade Federal de Santa Maria (UFSM), Departamento de proteção de plantas, Santa Maria, RS, Brazil
| | - Marcio A Mazutti
- Universidade Federal de Santa Maria (UFSM), Departamento de engenharia química, Santa Maria, RS, Brazil.
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Chambergo FS, Valencia EY. Fungal biodiversity to biotechnology. Appl Microbiol Biotechnol 2016; 100:2567-77. [DOI: 10.1007/s00253-016-7305-2] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 12/31/2015] [Accepted: 01/05/2016] [Indexed: 02/07/2023]
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