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Contato AG, Borelli TC, Buckeridge MS, Rogers J, Hartson S, Prade RA, Polizeli MDLTDM. Secretome Analysis of Thermothelomyces thermophilus LMBC 162 Cultivated with Tamarindus indica Seeds Reveals CAZymes for Degradation of Lignocellulosic Biomass. J Fungi (Basel) 2024; 10:121. [PMID: 38392793 PMCID: PMC10890306 DOI: 10.3390/jof10020121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/06/2024] [Accepted: 01/11/2024] [Indexed: 02/24/2024] Open
Abstract
The analysis of the secretome allows us to identify the proteins, especially carbohydrate-active enzymes (CAZymes), secreted by different microorganisms cultivated under different conditions. The CAZymes are divided into five classes containing different protein families. Thermothelomyces thermophilus is a thermophilic ascomycete, a source of many glycoside hydrolases and oxidative enzymes that aid in the breakdown of lignocellulosic materials. The secretome analysis of T. thermophilus LMBC 162 cultivated with submerged fermentation using tamarind seeds as a carbon source revealed 79 proteins distributed between the five diverse classes of CAZymes: 5.55% auxiliary activity (AAs); 2.58% carbohydrate esterases (CEs); 20.58% polysaccharide lyases (PLs); and 71.29% glycoside hydrolases (GHs). In the identified GH families, 54.97% are cellulolytic, 16.27% are hemicellulolytic, and 0.05 are classified as other. Furthermore, 48.74% of CAZymes have carbohydrate-binding modules (CBMs). Observing the relative abundance, it is possible to state that only thirteen proteins comprise 92.19% of the identified proteins secreted and are probably the main proteins responsible for the efficient degradation of the bulk of the biomass: cellulose, hemicellulose, and pectin.
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Affiliation(s)
- Alex Graça Contato
- Departamento de Bioquímica e Imunologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto 14049-900, SP, Brazil
- Department of Microbiology and Molecular Genetics, Oklahoma State University, Stillwater, OK 74078, USA
| | - Tiago Cabral Borelli
- Departamento de Biologia Celular e Molecular e Bioagentes Patogênicos, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto 14049-901, SP, Brazil
| | - Marcos Silveira Buckeridge
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo 05508-090, SP, Brazil
| | - Janet Rogers
- Department of Biochemistry and Molecular Biology, Oklahoma State University, Stillwater, OK 74078, USA
| | - Steven Hartson
- Department of Biochemistry and Molecular Biology, Oklahoma State University, Stillwater, OK 74078, USA
| | - Rolf Alexander Prade
- Department of Microbiology and Molecular Genetics, Oklahoma State University, Stillwater, OK 74078, USA
| | - Maria de Lourdes Teixeira de Moraes Polizeli
- Departamento de Bioquímica e Imunologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto 14049-900, SP, Brazil
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto 14040-901, SP, Brazil
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da Silva Fortirer J, Grandis A, Pagliuso D, de Toledo Castanho C, Buckeridge MS. Meta-analysis of the responses of tree and herb to elevated CO 2 in Brazil. Sci Rep 2023; 13:15832. [PMID: 37739974 PMCID: PMC10517018 DOI: 10.1038/s41598-023-40783-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 08/16/2023] [Indexed: 09/24/2023] Open
Abstract
The CO2 concentration has increased in the atmosphere due to fossil fuel consumption, deforestation, and land-use changes. Brazil represents one of the primary sources of food on the planet and is also the world's largest tropical rainforest, one of the hot spots of biodiversity in the world. In this work, a meta-analysis was conducted to compare several CO2 Brazilian experiments displaying the diversity of plant responses according to life habits, such as trees (79% natives and 21% cultivated) and herbs (33% natives and 67% cultivated). We found that trees and herbs display different responses. The young trees tend to allocate carbon from increased photosynthetic rates and lower respiration in the dark-to organ development, increasing leaves, roots, and stem biomasses. In addition, more starch is accumulated in the young trees, denoting a fine control of carbon metabolism through carbohydrate storage. Herbs increased drastically in water use efficiency, controlled by stomatal conductance, with more soluble sugars, probably with a transient accumulation of carbon primarily stored in seeds as a response to elevated CO2.
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Affiliation(s)
- Janaina da Silva Fortirer
- Laboratório de Fisiologia Ecológica de Plantas, Lafieco, Botany Department, Biosciences Institute at University of São Paulo, São Paulo, Brazil
| | - Adriana Grandis
- Laboratório de Fisiologia Ecológica de Plantas, Lafieco, Botany Department, Biosciences Institute at University of São Paulo, São Paulo, Brazil
| | - Débora Pagliuso
- Laboratório de Fisiologia Ecológica de Plantas, Lafieco, Botany Department, Biosciences Institute at University of São Paulo, São Paulo, Brazil
| | | | - Marcos Silveira Buckeridge
- Laboratório de Fisiologia Ecológica de Plantas, Lafieco, Botany Department, Biosciences Institute at University of São Paulo, São Paulo, Brazil.
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Contato AG, Nogueira KMV, Buckeridge MS, Silva RN, Polizeli MDLTDM. Trichoderma longibrachiatum and thermothelomyces thermophilus co-culture: improvement the saccharification profile of different sugarcane bagasse varieties. Biotechnol Lett 2023; 45:1093-1102. [PMID: 37354337 DOI: 10.1007/s10529-023-03395-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 04/28/2023] [Accepted: 05/03/2023] [Indexed: 06/26/2023]
Abstract
OBJECTIVES The aim of the present work was to perform the co-culture between Trichoderma longibrachiatum LMBC 172, a mesophilic fungus, with Thermothelomyces thermophilus LMBC 162, a thermophilic fungus, by submerged fermentation in a bioreactor. RESULTS There was an increase in protein production, reaching the value of 35.60 ± 3.76 µg/ml at 72 h. An increase in the amount of proteins of 27.5% in relation to the isolated cultivation of T. longibrachiatum and 19.7% in comparison when T. thermophilus was isolated and cultivated. After that, the saccharification profile of three varieties of sugarcane (sugarcane in natura, culms of sugarcane SP80-3280, and culms of Energy cane) submitted in two pretreatments (autohydrolysis and chemical) was performed. The (e) chemical pretreatment was the better in generating of fermentable sugars from sugarcane bagasse and culms of Energy cane, while with the autohydrolysis pretreatment was obtained the better values to culms of SP80-3280 sugarcane. The sugars found were glucose, xylose, arabinose, and cellobiose. CONCLUSION These results suggest that the co-culture between these microorganisms has the potential to produce an enzymatic cocktail with high performance in the hydrolysis of materials from the sugar-alcohol industry.
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Affiliation(s)
- Alex Graça Contato
- Departamento de Bioquímica e Imunologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Karoline Maria Vieira Nogueira
- Departamento de Bioquímica e Imunologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | | | - Roberto Nascimento Silva
- Departamento de Bioquímica e Imunologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Maria de Lourdes Teixeira de Moraes Polizeli
- Departamento de Bioquímica e Imunologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brazil.
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes, 3900 - Monte Alegre, Ribeirão Preto - SP, 14040-901, Brazil.
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de Souza Rodrigues T, Arge LWP, de Freitas Guedes FA, Travassos-Lins J, de Souza AP, Cocuron JC, Buckeridge MS, Grossi-de-Sá MF, Alves-Ferreira M. Elevated CO 2 increases biomass of Sorghum bicolor green prop roots under drought conditions via soluble sugar accumulation and photosynthetic activity. Physiol Plant 2023; 175:e13984. [PMID: 37616001 DOI: 10.1111/ppl.13984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 06/21/2023] [Accepted: 07/21/2023] [Indexed: 08/25/2023]
Abstract
Elevated [CO2 ] (E[CO2 ]) mitigates agricultural losses of C4 plants under drought. Although several studies have described the molecular responses of the C4 plant species Sorghum bicolor during drought exposure, few have reported the combined effects of drought and E[CO2 ] (E[CO2 ]/D) on the roots. A previous study showed that, among plant organs, green prop roots (GPRs) under E[CO2 ]/D presented the second highest increase in biomass after leaves compared with ambient [CO2 ]/D. GPRs are photosynthetically active and sensitive to drought. To understand which mechanisms are involved in the increase in biomass of GPRs, we performed transcriptome analyses of GPRs under E[CO2 ]/D. Whole-transcriptome analysis revealed several pathways altered under E[CO2 ]/D, among which photosynthesis was strongly affected. We also used previous metabolome data to support our transcriptome data. Activities associated with photosynthesis and central metabolism increased, as seen by the upregulation of photosynthesis-related genes, a rise in glucose and polyol contents, and increased contents of chlorophyll a and carotenoids. Protein-protein interaction networks revealed that proliferation, biogenesis, and homeostasis categories were enriched and contained mainly upregulated genes. The findings suggest that the previously reported increase in GPR biomass of plants grown under E[CO2 ]/D is mainly attributed to glucose and polyol accumulation, as well as photosynthesis activity and carbon provided by respiratory CO2 refixation. Our findings reveal that an intriguing and complex metabolic process occurs in GPRs under E[CO2 ]/D, showing the crucial role of these organs in plant drought /tolerance.
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Affiliation(s)
- Tamires de Souza Rodrigues
- Department of Genetics, Institute of Biology, Health Science Center, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Luis Willian Pacheco Arge
- Department of Genetics, Institute of Biology, Health Science Center, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Fernanda Alves de Freitas Guedes
- Department of Genetics, Institute of Biology, Health Science Center, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - João Travassos-Lins
- Department of Genetics, Institute of Biology, Health Science Center, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Amanda Pereira de Souza
- Carl R Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | | | | | - Maria Fátima Grossi-de-Sá
- Embrapa Genetic Resources and Biotechnology, National Institute of Science and Technology, INCT PlantStress Biotech, Embrapa, Catholic University of Brasília, Brasília-DF, Brazil
| | - Márcio Alves-Ferreira
- Department of Genetics, Institute of Biology, Health Science Center, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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Garbelotti CV, Grandis A, Crevelin E, Buckeridge MS, de Moraes LAB, Ward RJ. Glycomic profiling identifies key-structural differences in three arabinoxylan fractions from sugarcane culms. Carbohydr Polym 2023; 310:120694. [PMID: 36925235 DOI: 10.1016/j.carbpol.2023.120694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 02/03/2023] [Accepted: 02/08/2023] [Indexed: 02/13/2023]
Abstract
Sugarcane is an important food and bioenergy crop, and although the residual biomass is potentially available for biorefinery and biofuels production the complex plant cell wall matrix requires pretreatment prior to enzymatic hydrolysis. Arabinoxylans require multiple enzymes for xylose backbone and saccharide side-branch hydrolysis to release xylooligosaccharides and pentoses. The effect of arabinoxylan structure on xylooligosaccharide release by combinations of up to five xylanolytic enzymes was studied using three arabinoxylan fractions extracted from sugarcane culms by sodium chlorite, DMSO and alkaline treatments. Reducing sugar release and LC-MS detection with chemometric analysis identified different xylooligosaccharide profiles between extracts following enzyme treatments. The position and degree of side-branch decorations are determinants of enzyme activity and xylooligosaccharide diversity with the alkaline and post‑sodium chlorite extracts as the most accessible and most recalcitrant, respectively, indicating acetyl substituents as a major recalcitrance factor. The complex xylooligosaccharide profile with the DMSO extract suggests regions with different levels of branching. Chemometric analysis identified GH10 xylanase hydrolysis products that act as substrates for other enzymes, such as α-glucuronidase. The strategy reported here can identify specific enzyme combinations to overcome barriers for biomass processing such as pretreatment selection, recalcitrance to enzyme digestion and optimization of reducing sugar release.
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Affiliation(s)
- Carolina Victal Garbelotti
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP CEP 14040-901, Brazil.
| | - Adriana Grandis
- Laboratório de Fisiologia Ecológica de Plantas do Instituto de Biociências da Universidade de São Paulo, São Paulo, SP CEP 05508-090, Brazil
| | - Eduardo Crevelin
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP CEP 14040-901, Brazil.
| | - Marcos Silveira Buckeridge
- Laboratório de Fisiologia Ecológica de Plantas do Instituto de Biociências da Universidade de São Paulo, São Paulo, SP CEP 05508-090, Brazil
| | - Luiz Alberto Beraldo de Moraes
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP CEP 14040-901, Brazil.
| | - Richard John Ward
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP CEP 14040-901, Brazil.
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Barreto MQ, Garbelotti CV, de Moura Soares J, Grandis A, Buckeridge MS, Leone FA, Ward RJ. Xylose isomerase from Piromyces sp. E2 is a promiscuous enzyme with epimerase activity. Enzyme Microb Technol 2023; 166:110230. [PMID: 36966679 DOI: 10.1016/j.enzmictec.2023.110230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 03/15/2023] [Accepted: 03/18/2023] [Indexed: 04/03/2023]
Abstract
Xylose isomerase catalyzes the isomerization of D-xylose to D-xylulose with promiscuous activity for other saccharides including D-glucose, D-allose, and L-arabinose. The xylose isomerase from the fungus Piromyces sp. E2 (PirE2_XI) is used to engineer xylose usage by the fermenting yeast Saccharomyces cerevisiae, but its biochemical characterization is poorly understood with divergent catalytic parameters reported. We have measured the kinetic parameters of the PirE2_XI and analyzed its thermostability and pH-dependence towards different substrates. The PirE2_XI shows promiscuous activity towards D-xylose, D-glucose, D-ribose and L-arabinose with variable effects depending on different divalent ions and epimerizes D-xylose at C3 to produce D-ribulose in a substrate/product dependent ratio. The enzyme follows Michaelis-Menten kinetics for the substrates used and although KM values for D-xylose are comparable at 30 and 60 °C, the kcat/KM is three-fold greater at 60 °C. The purified PirE2_XI shows maximal activity at 65 °C in the pH range of 6.5-7.5 and is a thermostable enzyme, maintaining full activity over 48 h at 30 °C or 12 h at 60 °C. This is the first report demonstrating epimerase activity of the PirE2_XI and its ability to isomerize D-ribose and L-arabinose, and provides a comprehensive in vitro study of substrate specificity, effect of metal ions and temperature on enzyme activity and these findings advance the knowledge of the mechanism of action of this enzyme.
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Basso MF, Lourenço-Tessutti IT, Moreira-Pinto CE, Mendes RAG, Pereira DG, Grandis A, Macedo LLP, Macedo AF, Gomes ACMM, Arraes FBM, Togawa RC, do Carmo Costa MM, Marcelino-Guimaraes FC, Silva MCM, Floh EIS, Buckeridge MS, de Almeida Engler J, Grossi-de-Sa MF. Overexpression of the GmEXPA1 gene reduces plant susceptibility to Meloidogyne incognita. Plant Cell Rep 2023; 42:137-152. [PMID: 36348064 DOI: 10.1007/s00299-022-02941-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 10/17/2022] [Indexed: 06/16/2023]
Abstract
The overexpression of the soybean GmEXPA1 gene reduces plant susceptibility to M. incognita by the increase of root lignification. Plant expansins are enzymes that act in a pH-dependent manner in the plant cell wall loosening and are associated with improved tolerance or resistance to abiotic or biotic stresses. Plant-parasitic nematodes (PPN) can alter the expression profile of several expansin genes in infected root cells. Studies have shown that overexpression or downregulation of particular expansin genes can reduce plant susceptibility to PPNs. Root-knot nematodes (RKN) are obligate sedentary endoparasites of the genus Meloidogyne spp. of which M. incognita is one of the most reported species. Herein, using a transcriptome dataset and real-time PCR assays were identified an expansin A gene (GmEXPA1; Glyma.02G109100) that is upregulated in the soybean nematode-resistant genotype PI595099 compared to the susceptible cultivar BRS133 during plant parasitism by M. incognita. To understand the role of the GmEXPA1 gene during the interaction between soybean plant and M. incognita were generated stable A. thaliana and N. tabacum transgenic lines. Remarkably, both A. thaliana and N. tabacum transgenic lines overexpressing the GmEXPA1 gene showed reduced susceptibility to M. incognita. Furthermore, plant growth, biomass accumulation, and seed yield were not affected in these transgenic lines. Interestingly, significant upregulation of the NtACC oxidase and NtEFE26 genes, involved in ethylene biosynthesis, and NtCCR and Nt4CL genes, involved in lignin biosynthesis, was observed in roots of the N. tabacum transgenic lines, which also showed higher lignin content. These data suggested a possible link between GmEXPA1 gene expression and increased lignification of the root cell wall. Therefore, these data support that engineering of the GmEXPA1 gene in soybean offers a powerful biotechnology tool to assist in RKN management.
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Affiliation(s)
- Marcos Fernando Basso
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-901, Brazil
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70297-400, Brazil
| | - Isabela Tristan Lourenço-Tessutti
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-901, Brazil
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70297-400, Brazil
| | - Clidia Eduarda Moreira-Pinto
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-901, Brazil
- Federal University of Brasília, Brasília, DF, 70910-900, Brazil
| | - Reneida Aparecida Godinho Mendes
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-901, Brazil
- Federal University of Brasília, Brasília, DF, 70910-900, Brazil
| | - Debora Gonçalves Pereira
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-901, Brazil
- Federal University of Brasília, Brasília, DF, 70910-900, Brazil
| | - Adriana Grandis
- Department of Botany, Biosciences Institute, University of São Paulo, São Paulo, SP, 05508-090, Brazil
| | - Leonardo Lima Pepino Macedo
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-901, Brazil
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70297-400, Brazil
| | - Amanda Ferreira Macedo
- Department of Botany, Biosciences Institute, University of São Paulo, São Paulo, SP, 05508-090, Brazil
| | | | - Fabrício Barbosa Monteiro Arraes
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-901, Brazil
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70297-400, Brazil
| | - Roberto Coiti Togawa
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-901, Brazil
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70297-400, Brazil
| | - Marcos Mota do Carmo Costa
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-901, Brazil
| | - Francismar Corrêa Marcelino-Guimaraes
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70297-400, Brazil
- Embrapa Soybean, Londrina, PR, 86001-970, Brazil
| | - Maria Cristina Mattar Silva
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-901, Brazil
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70297-400, Brazil
| | - Eny Iochevet Segal Floh
- Department of Botany, Biosciences Institute, University of São Paulo, São Paulo, SP, 05508-090, Brazil
| | | | - Janice de Almeida Engler
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70297-400, Brazil
- INRAE, Université Côte d'Azur, CNRS, ISA, 06903, Sophia Antipolis, France
| | - Maria Fatima Grossi-de-Sa
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-901, Brazil.
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70297-400, Brazil.
- Catholic University of Brasília, Brasília, DF, 71966-700, Brazil.
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Basso MF, Lourenço-Tessutti IT, Moreira-Pinto CE, Mendes RAG, Paes-de-Melo B, das Neves MR, Macedo AF, Figueiredo V, Grandis A, Macedo LLP, Arraes FBM, do Carmo Costa MM, Togawa RC, Enrich-Prast A, Marcelino-Guimaraes FC, Gomes ACMM, Silva MCM, Floh EIS, Buckeridge MS, de Almeida Engler J, Grossi-de-Sa MF. Overexpression of a soybean Globin (GmGlb1-1) gene reduces plant susceptibility to Meloidogyne incognita. Planta 2022; 256:83. [PMID: 36112244 DOI: 10.1007/s00425-022-03992-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Accepted: 09/01/2022] [Indexed: 06/15/2023]
Abstract
The overexpression of the GmGlb1-1 gene reduces plant susceptibility to Meloidogyne incognita. Non-symbiotic globin class #1 (Glb1) genes are expressed in different plant organs, have a high affinity for oxygen, and are related to nitric oxide (NO) turnover. Previous studies showed that soybean Glb1 genes are upregulated in soybean plants under flooding conditions. Herein, the GmGlb1-1 gene was identified in soybean as being upregulated in the nematode-resistant genotype PI595099 compared to the nematode-susceptible cultivar BRS133 during plant parasitism by Meloidogyne incognita. The Arabidopsis thaliana and Nicotiana tabacum transgenic lines overexpressing the GmGlb1-1 gene showed reduced susceptibility to M. incognita. Consistently, gall morphology data indicated that pJ2 nematodes that infected the transgenic lines showed developmental alterations and delayed parasitism progress. Although no significant changes in biomass and seed yield were detected, the transgenic lines showed an elongated, etiolation-like growth under well-irrigation, and also developed more axillary roots under flooding conditions. In addition, transgenic lines showed upregulation of some important genes involved in plant defense response to oxidative stress. In agreement, higher hydrogen peroxide accumulation and reduced activity of reactive oxygen species (ROS) detoxification enzymes were also observed in these transgenic lines. Thus, based on our data and previous studies, it was hypothesized that constitutive overexpression of the GmGlb1-1 gene can interfere in the dynamics of ROS production and NO scavenging, enhancing the acquired systemic acclimation to biotic and abiotic stresses, and improving the cellular homeostasis. Therefore, these collective data suggest that ectopic or nematode-induced overexpression, or enhanced expression of the GmGlb1-1 gene using CRISPR/dCas9 offers great potential for application in commercial soybean cultivars aiming to reduce plant susceptibility to M. incognita.
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Affiliation(s)
- Marcos Fernando Basso
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-917, Brazil
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70770-917, Brazil
| | - Isabela Tristan Lourenço-Tessutti
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-917, Brazil
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70770-917, Brazil
| | - Clidia Eduarda Moreira-Pinto
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-917, Brazil
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70770-917, Brazil
- Federal University of Brasília, Brasília, DF, 70910-900, Brazil
| | - Reneida Aparecida Godinho Mendes
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-917, Brazil
- Federal University of Brasília, Brasília, DF, 70910-900, Brazil
| | - Bruno Paes-de-Melo
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-917, Brazil
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70770-917, Brazil
| | - Maysa Rosa das Neves
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-917, Brazil
| | - Amanda Ferreira Macedo
- Department of Botany, Biosciences Institute, University of São Paulo, São Paulo, SP, 05508-090, Brazil
| | - Viviane Figueiredo
- Multiuser Unit of Environmental Analysis and Institute of Biology, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, 21941-971, Brazil
| | - Adriana Grandis
- Department of Botany, Biosciences Institute, University of São Paulo, São Paulo, SP, 05508-090, Brazil
| | - Leonardo Lima Pepino Macedo
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-917, Brazil
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70770-917, Brazil
| | - Fabrício Barbosa Monteiro Arraes
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-917, Brazil
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70770-917, Brazil
| | - Marcos Mota do Carmo Costa
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-917, Brazil
| | - Roberto Coiti Togawa
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-917, Brazil
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70770-917, Brazil
| | - Alex Enrich-Prast
- Multiuser Unit of Environmental Analysis and Institute of Biology, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, 21941-971, Brazil
- Biogas Research Center and Department of Thematic Studies, Environmental Change, Linköping University, Linköping, Sweden
| | - Francismar Corrêa Marcelino-Guimaraes
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70770-917, Brazil
- Embrapa Soybean, Londrina, PR, 86001-970, Brazil
| | | | - Maria Cristina Mattar Silva
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-917, Brazil
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70770-917, Brazil
| | - Eny Iochevet Segal Floh
- Department of Botany, Biosciences Institute, University of São Paulo, São Paulo, SP, 05508-090, Brazil
| | | | - Janice de Almeida Engler
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70770-917, Brazil
- INRAE, Université Côte d'Azur, CNRS, ISA, 06903, Sophia Antipolis, France
| | - Maria Fatima Grossi-de-Sa
- Embrapa Genetic Resources and Biotechnology, PqEB Final, W5 Norte, PO Box 02372, Brasília, DF, 70770-917, Brazil.
- National Institute of Science and Technology, INCT Plant Stress Biotech, EMBRAPA, Brasília, DF, 70770-917, Brazil.
- Catholic University of Brasília, Brasília, DF, 71966-700, Brazil.
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9
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de Oliveira LP, Navarro BV, de Jesus Pereira JP, Lopes AR, Martins MCM, Riaño-Pachón DM, Buckeridge MS. Bioinformatic analyses to uncover genes involved in trehalose metabolism in the polyploid sugarcane. Sci Rep 2022; 12:7516. [PMID: 35525890 PMCID: PMC9079074 DOI: 10.1038/s41598-022-11508-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 03/22/2022] [Indexed: 11/09/2022] Open
Abstract
Trehalose-6-phosphate (T6P) is an intermediate of trehalose biosynthesis that plays an essential role in plant metabolism and development. Here, we comprehensively analyzed sequences from enzymes of trehalose metabolism in sugarcane, one of the main crops used for bioenergy production. We identified protein domains, phylogeny, and in silico expression levels for all classes of enzymes. However, post-translational modifications and residues involved in catalysis and substrate binding were analyzed only in trehalose-6-phosphate synthase (TPS) sequences. We retrieved 71 putative full-length TPS, 93 trehalose-6-phosphate phosphatase (TPP), and 3 trehalase (TRE) of sugarcane, showing all their conserved domains, respectively. Putative TPS (Classes I and II) and TPP sugarcane sequences were categorized into well-known groups reported in the literature. We measured the expression levels of the sequences from one sugarcane leaf transcriptomic dataset. Furthermore, TPS Class I has specific N-glycosylation sites inserted in conserved motifs and carries catalytic and binding residues in its TPS domain. Some of these residues are mutated in TPS Class II members, which implies loss of enzyme activity. Our approach retrieved many homo(eo)logous sequences for genes involved in trehalose metabolism, paving the way to discover the role of T6P signaling in sugarcane.
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Affiliation(s)
- Lauana Pereira de Oliveira
- Laboratório de Fisiologia Ecológica de Plantas, Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil.,Instituto Nacional de Ciência e Tecnologia do Bioetanol, São Paulo, Brazil
| | - Bruno Viana Navarro
- Laboratório de Fisiologia Ecológica de Plantas, Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil.,Instituto Nacional de Ciência e Tecnologia do Bioetanol, São Paulo, Brazil
| | - João Pedro de Jesus Pereira
- Laboratório de Fisiologia Ecológica de Plantas, Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil.,Instituto Nacional de Ciência e Tecnologia do Bioetanol, São Paulo, Brazil
| | | | - Marina C M Martins
- Laboratório de Fisiologia Ecológica de Plantas, Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil.,Instituto Nacional de Ciência e Tecnologia do Bioetanol, São Paulo, Brazil
| | - Diego Mauricio Riaño-Pachón
- Laboratório de Biologia Computacional, Centro de Energia Nuclear na Agricultura, Evolutiva e de Sistemas, Universidade de São Paulo, São Paulo, Brazil. .,Instituto Nacional de Ciência e Tecnologia do Bioetanol, São Paulo, Brazil.
| | - Marcos Silveira Buckeridge
- Laboratório de Fisiologia Ecológica de Plantas, Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil. .,Instituto Nacional de Ciência e Tecnologia do Bioetanol, São Paulo, Brazil.
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10
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Contato AG, de Oliveira TB, Aranha GM, de Freitas EN, Vici AC, Nogueira KMV, de Lucas RC, Scarcella ASDA, Buckeridge MS, Silva RN, Polizeli MDLTDM. Prospection of Fungal Lignocellulolytic Enzymes Produced from Jatoba ( Hymenaea courbaril) and Tamarind ( Tamarindus indica) Seeds: Scaling for Bioreactor and Saccharification Profile of Sugarcane Bagasse. Microorganisms 2021; 9:microorganisms9030533. [PMID: 33807631 PMCID: PMC8000596 DOI: 10.3390/microorganisms9030533] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 02/19/2021] [Accepted: 02/25/2021] [Indexed: 12/15/2022] Open
Abstract
The lignocellulosic biomass comprises three main components: cellulose, hemicellulose, and lignin. Degradation and conversion of these three components are attractive to biotechnology. This study aimed to prospect fungal lignocellulolytic enzymes with potential industrial applications, produced through a temporal analysis using Hymenaea courbaril and Tamarindus indica seeds as carbon sources. α-L-arabinofuranosidase, acetyl xylan esterase, endo-1,5-α-L-arabinanase, β-D-galactosidase, β-D-glucosidase, β-glucanase, β-D-xylosidase, cellobiohydrolase, endoglucanase, lichenase, mannanase, polygalacturonase, endo-1,4-β-xylanase, and xyloglucanase activities were determined. The enzymes were produced for eight filamentous fungi: Aspergillus fumigatus, Trametes hirsuta, Lasiodiplodia sp., two strains of Trichoderma longibrachiatum, Neocosmospora perseae, Fusarium sp. and Thermothelomyces thermophilus. The best producers concerning enzymatic activity were T. thermophilus and T. longibrachiatum. The optimal conditions for enzyme production were the media supplemented with tamarind seeds, under agitation, for 72 h. This analysis was essential to demonstrate that cultivation conditions, static and under agitation, exert strong influences on the production of several enzymes produced by different fungi. The kind of sugarcane, pretreatment used, microorganisms, and carbon sources proved limiting sugar profile factors.
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Affiliation(s)
- Alex Graça Contato
- Departamento de Bioquímica e Imunologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto 14049-900, Brazil; (A.G.C.); (E.N.d.F.); (K.M.V.N.); (R.C.d.L.); (A.S.d.A.S.); (R.N.S.)
| | - Tássio Brito de Oliveira
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto 14050-901, Brazil; (T.B.d.O.); (G.M.A.); (A.C.V.)
| | - Guilherme Mauro Aranha
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto 14050-901, Brazil; (T.B.d.O.); (G.M.A.); (A.C.V.)
| | - Emanuelle Neiverth de Freitas
- Departamento de Bioquímica e Imunologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto 14049-900, Brazil; (A.G.C.); (E.N.d.F.); (K.M.V.N.); (R.C.d.L.); (A.S.d.A.S.); (R.N.S.)
| | - Ana Claudia Vici
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto 14050-901, Brazil; (T.B.d.O.); (G.M.A.); (A.C.V.)
| | - Karoline Maria Vieira Nogueira
- Departamento de Bioquímica e Imunologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto 14049-900, Brazil; (A.G.C.); (E.N.d.F.); (K.M.V.N.); (R.C.d.L.); (A.S.d.A.S.); (R.N.S.)
| | - Rosymar Coutinho de Lucas
- Departamento de Bioquímica e Imunologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto 14049-900, Brazil; (A.G.C.); (E.N.d.F.); (K.M.V.N.); (R.C.d.L.); (A.S.d.A.S.); (R.N.S.)
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto 14050-901, Brazil; (T.B.d.O.); (G.M.A.); (A.C.V.)
| | - Ana Sílvia de Almeida Scarcella
- Departamento de Bioquímica e Imunologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto 14049-900, Brazil; (A.G.C.); (E.N.d.F.); (K.M.V.N.); (R.C.d.L.); (A.S.d.A.S.); (R.N.S.)
| | - Marcos Silveira Buckeridge
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo 05508-090, Brazil;
| | - Roberto Nascimento Silva
- Departamento de Bioquímica e Imunologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto 14049-900, Brazil; (A.G.C.); (E.N.d.F.); (K.M.V.N.); (R.C.d.L.); (A.S.d.A.S.); (R.N.S.)
| | - Maria de Lourdes Teixeira de Moraes Polizeli
- Departamento de Bioquímica e Imunologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto 14049-900, Brazil; (A.G.C.); (E.N.d.F.); (K.M.V.N.); (R.C.d.L.); (A.S.d.A.S.); (R.N.S.)
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto 14050-901, Brazil; (T.B.d.O.); (G.M.A.); (A.C.V.)
- Correspondence: ; Tel.: +55-(16)-3315-4680
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11
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Simões MS, Ferreira SS, Grandis A, Rencoret J, Persson S, Floh EIS, Ferraz A, del Río JC, Buckeridge MS, Cesarino I. Differentiation of Tracheary Elements in Sugarcane Suspension Cells Involves Changes in Secondary Wall Deposition and Extensive Transcriptional Reprogramming. Front Plant Sci 2020; 11:617020. [PMID: 33469464 PMCID: PMC7814504 DOI: 10.3389/fpls.2020.617020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 12/01/2020] [Indexed: 05/06/2023]
Abstract
Plant lignocellulosic biomass, mostly composed of polysaccharide-rich secondary cell walls (SCWs), provides fermentable sugars that may be used to produce biofuels and biomaterials. However, the complex chemical composition and physical structure of SCWs hinder efficient processing of plant biomass. Understanding the molecular mechanisms underlying SCW deposition is, thus, essential to optimize bioenergy feedstocks. Here, we establish a xylogenic culture as a model system to study SCW deposition in sugarcane; the first of its kind in a C4 grass species. We used auxin and brassinolide to differentiate sugarcane suspension cells into tracheary elements, which showed metaxylem-like reticulate or pitted SCW patterning. The differentiation led to increased lignin levels, mainly caused by S-lignin units, and a rise in p-coumarate, leading to increased p-coumarate:ferulate ratios. RNAseq analysis revealed massive transcriptional reprogramming during differentiation, with upregulation of genes associated with cell wall biogenesis and phenylpropanoid metabolism and downregulation of genes related to cell division and primary metabolism. To better understand the differentiation process, we constructed regulatory networks of transcription factors and SCW-related genes based on co-expression analyses. Accordingly, we found multiple regulatory modules that may underpin SCW deposition in sugarcane. Our results provide important insights and resources to identify biotechnological strategies for sugarcane biomass optimization.
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Affiliation(s)
- Marcella Siqueira Simões
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil
| | - Sávio Siqueira Ferreira
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil
| | - Adriana Grandis
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil
| | - Jorge Rencoret
- Instituto de Recursos Naturales y Agrobiología de Sevilla, CSIC, Seville, Spain
| | - Staffan Persson
- School of Biosciences, University of Melbourne, Melbourne, VIC, Australia
- Department of Plant and Environmental Sciences, University of Copenhagen, Frederiksberg, Denmark
- Copenhagen Plant Science Center, University of Copenhagen, Frederiksberg, Denmark
- Joint International Research Laboratory of Metabolic and Developmental Sciences, State Key Laboratory of Hybrid Rice, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Eny Iochevet Segal Floh
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil
| | - André Ferraz
- Departamento de Biotecnologia, Escola de Engenharia de Lorena, Universidade de São Paulo, Lorena, Brazil
| | - José C. del Río
- Instituto de Recursos Naturales y Agrobiología de Sevilla, CSIC, Seville, Spain
| | - Marcos Silveira Buckeridge
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil
- Synthetic and Systems Biology Center, InovaUSP, São Paulo, Brazil
| | - Igor Cesarino
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil
- Synthetic and Systems Biology Center, InovaUSP, São Paulo, Brazil
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12
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Pagliuso D, Palacios Jara CE, Grandis A, Lam E, Pena Ferreira MJ, Buckeridge MS. Flavonoids from duckweeds: potential applications in the human diet. RSC Adv 2020; 10:44981-44988. [PMID: 35516288 PMCID: PMC9058668 DOI: 10.1039/d0ra06741e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 11/21/2020] [Indexed: 11/21/2022] Open
Abstract
Duckweeds are the smallest free-floating flowering aquatic plants. Their biotechnological applications include their use as food, bioenergy, and environmental sustainability, as they can help clean polluted water. The high growth capacity and their chemical properties make them suitable for human health applications. Here we evaluated the ethanolic extracts from five species of duckweeds by HPLC-DAD/MS-MS for chemical characterization. Sixteen compounds were identified and quantified, in which three were chlorogenic acid derivatives and eleven apigenin and luteolin derivatives. We describe for the first time the presence in duckweeds of 5-O-(E)-caffeoylquinic acid (1), 3-O-(E)-coumaroylquinic acid (2), luteolin-7-O-glucoside-C-glucoside (3), 4-O-(E)-coumaroylquinic acid (4), luteolin-6-C-glucoside-8-C-rhamnoside (5), and luteolin-8-C-glucoside-6-C-rhamnoside (6). The flavonoids diversity showed a significant content of luteolin and its derivatives, except for Landoltia punctata that had significant apigenin content. Flavones identified in duckweeds were mostly C-glycosides, which can benefit human diets, and its abundance seems to be related to the higher antioxidant and anticancer capacities of Wolffiella caudata, Wolffia borealis, and Landoltia punctata. Our findings reinforce the idea that duckweeds could be valuable additives to the human diet, and their potential should be further explored.
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Affiliation(s)
- Débora Pagliuso
- Laboratory of Plant Physiological Ecology, Department of Botany, Institute of Biosciences, University of São Paulo Brazil
| | - Carmen Eusebia Palacios Jara
- Laboratory of Plant Physiological Ecology, Department of Botany, Institute of Biosciences, University of São Paulo Brazil
- Laboratory of Phytochemistry, Department of Botany, Institute of Biosciences, University of São Paulo Brazil
| | - Adriana Grandis
- Laboratory of Plant Physiological Ecology, Department of Botany, Institute of Biosciences, University of São Paulo Brazil
| | - Eric Lam
- Department of Plant Biology and Pathology, Rutgers, The State University of New Jersey New Brunswick New Jersey USA
| | - Marcelo José Pena Ferreira
- Laboratory of Phytochemistry, Department of Botany, Institute of Biosciences, University of São Paulo Brazil
| | - Marcos Silveira Buckeridge
- Laboratory of Plant Physiological Ecology, Department of Botany, Institute of Biosciences, University of São Paulo Brazil
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13
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Locosselli GM, Brienen RJW, de Souza Martins VT, Gloor E, Boom A, de Camargo EP, Saldiva PHN, Buckeridge MS. Intra-annual oxygen isotopes in the tree rings record precipitation extremes and water reservoir levels in the Metropolitan Area of São Paulo, Brazil. Sci Total Environ 2020; 743:140798. [PMID: 32758845 DOI: 10.1016/j.scitotenv.2020.140798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 07/02/2020] [Accepted: 07/05/2020] [Indexed: 06/11/2023]
Abstract
The impacts of climate change on precipitation and the growing demand for water have increased the water risks worldwide. Water scarcity is one of the main challenges of the 21st century, and the assessment of water risks is only possible from spatially distributed records of historical climate and levels of water reservoirs. One potential method to assess water supply is the reconstruction of oxygen isotopes in rainfall. We here investigated the use of tree-ring stable isotopes in urban trees to assess spatial/temporal variation in precipitation and level of water reservoirs. We analyzed the intra-annual variation of δ13C and δ18O in the tree rings of Tipuana tipu trees from northern and southern Metropolitan Area of São Paulo (MASP), Brazil. While variation in δ13C indicates low leaf-level enrichments from evapotranspiration, δ18O variation clearly reflects precipitation extremes. Tree-ring δ18O was highest during the 2014 drought, associated with the lowest historical reservoir levels in the city. The δ18O values from the middle of the tree rings have a strong association with the mid-summer precipitation (r = -0.71), similar to the association between the volume of precipitation and its δ18O signature (r = -0.76). These consistent results allowed us to test the association between tree-ring δ18O and water-level of the main reservoirs that supply the MASP. We observed a strong association between intra-annual tree-ring δ18O and the water-level of reservoirs in the northern and southern MASP (r = -0.94, r = -0.90, respectively). These results point to the potential use of high-resolution tree-ring stable isotopes to put precipitation extremes, and water supply, in a historical perspective assisting public policies related to water risks and climate change. The ability to record precipitation extremes, and previously reported capacity to record air pollution, place Tipuana tipu in a prominent position as a reliable environmental monitor for urban locations.
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Affiliation(s)
- Giuliano Maselli Locosselli
- Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil; Instituto de Estudos Avançados, Universidade de São Paulo, São Paulo, Brazil.
| | | | | | - Emanuel Gloor
- School of Geography, University of Leeds, Leeds, United Kingdom
| | - Arnoud Boom
- Department of Geography, University of Leicester, Leicester, United Kingdom
| | | | | | - Marcos Silveira Buckeridge
- Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil; Instituto de Estudos Avançados, Universidade de São Paulo, São Paulo, Brazil
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14
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Locosselli GM, Moreira TCL, Chacón-Madrid K, Arruda MAZ, Camargo EPD, Kamigauti LY, da Trindade RIF, Andrade MDF, André CDSD, André PAD, Singer JM, Saiki M, Zaccarelli-Marino MA, Saldiva PHN, Buckeridge MS. Spatial-temporal variability of metal pollution across an industrial district, evidencing the environmental inequality in São Paulo. Environ Pollut 2020; 263:114583. [PMID: 33618488 DOI: 10.1016/j.envpol.2020.114583] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 03/30/2020] [Accepted: 04/09/2020] [Indexed: 06/12/2023]
Abstract
Although air pollution decreased in some cities that shifted from an industrial to a service-based economy, and vehicular emission regulation became more restrictive, it is still a major risk factor for mortality worldwide. In central São Paulo, Brazil, air quality monitoring stations and tree-ring analyses revealed a decreasing trend in the concentrations of particulate matter and metals. Such trends, however, may not be observed in industrial districts located in the urban periphery, where the usual mobile sources may be combined with local stationary sources. To evaluate environmental pollution in an industrial district in southeastern São Paulo, we assessed its spatial variability, by measuring magnetic properties and concentrations of Al, Ba, Ca, Cl, Cu, Fe, K, Mg, Mn, P, S, Sr, Zn in the bark of 62 trees, and its temporal trends, by measuring Cd, Cu, Ni, Pb, V, Zn in tree rings of three trees. Source apportionment analysis based on tree barks revealed two clusters with high concentrations of metals, one related to vehicular and industrial emissions (Al, Ba, Cu, Fe, Zn) in the east side of the industrial cluster, and the other related to soil resuspension (Cu, Zn, Mn) in its west side. These patterns are also supported by the magnetic properties of bark associated with iron oxides and titanium-iron alloy concentrations. Dendrochemical analyses revealed that only the concentrations of Pb consistently decreased over the last four decades. The concentrations of Cd, Cu, Ni, V, and Zn did not significantly decrease over time, in contrast with their negative trends previously reported in central São Paulo. This combined biomonitoring approach revealed spatial clusters of metal concentration in the vicinity of this industrial cluster and showed that the local population has not benefited from the decreasing polluting metal concentrations in the last decades.
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Affiliation(s)
- Giuliano Maselli Locosselli
- Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil; Instituto de Estudos Avançados, Universidade de São Paulo, São Paulo, Brazil
| | | | | | | | | | | | | | | | | | | | - Julio M Singer
- Instituto de Matemática e Estatística, Universidade de São Paulo, São Paulo, Brazil
| | - Mitiko Saiki
- Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP, São Paulo, SP, Brazil
| | | | - Paulo Hilário Nascimento Saldiva
- Instituto de Estudos Avançados, Universidade de São Paulo, São Paulo, Brazil; Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - Marcos Silveira Buckeridge
- Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil; Instituto de Estudos Avançados, Universidade de São Paulo, São Paulo, Brazil.
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15
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Queiroz de Pinho Tavares E, Camara Mattos Martins M, Grandis A, Romim GH, Rusiska Piovezani A, Weissmann Gaiarsa J, Silveira Buckeridge M. Newly identified miRNAs may contribute to aerenchyma formation in sugarcane roots. Plant Direct 2020; 4:e00204. [PMID: 32226917 PMCID: PMC7098396 DOI: 10.1002/pld3.204] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 01/11/2020] [Accepted: 01/24/2020] [Indexed: 05/14/2023]
Abstract
Small RNAs comprise three families of noncoding regulatory RNAs that control gene expression by blocking mRNA translation or leading to mRNA cleavage. Such post-transcriptional negative regulation is relevant for both plant development and environmental adaptations. An important biotechnological application of miRNA identification is the discovery of regulators and effectors of cell wall degradation, which can improve/facilitate hydrolysis of cell wall polymers for second-generation bioethanol production. The recent characterization of plant innate cell wall modifications occurring during root aerenchyma development triggered by ethylene led to the possibility of prospection for mechanisms of cell wall disassembly in sugarcane. By using next-generation sequencing, 39 miRNAs were identified in root segments along the process of aerenchyma development. Among them, 31 miRNAs were unknown to the sugarcane miRBase repository but previously identified as produced by its relative Sorghum bicolor. Key putative targets related to signal transduction, carbohydrate metabolic process, and cell wall organization or biogenesis were among the most representative gene categories targeted by miRNA. They belong to the subclasses of genes associated with the four modules of cell wall modification in sugarcane roots: cell expansion, cell separation, hemicellulose, and cellulose hydrolysis. Thirteen miRNAs possibly related to ethylene perception and signaling were also identified. Our findings suggest that miRNAs may be involved in the regulation of cell wall degradation during aerenchyma formation. This work also points out to potential molecular tools for sugarcane improvement in the context of second-generation biofuels.
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Affiliation(s)
| | | | - Adriana Grandis
- Departamento de Botânica Instituto de Biociências Universidade de São Paulo São Paulo Brazil
| | - Grayce H Romim
- Departamento de Botânica Instituto de Biociências Universidade de São Paulo São Paulo Brazil
| | | | - Jonas Weissmann Gaiarsa
- Centro de Facilidades Para a Pesquisa Instituto de Ciências Biomédicas Universidade de São Paulo São Paulo Brazil
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Pasin TM, Salgado JCS, Scarcella ASDA, de Oliveira TB, de Lucas RC, Cereia M, Rosa JC, Ward RJ, Buckeridge MS, Polizeli MDLTDM. A Halotolerant Endo-1,4-β-Xylanase from Aspergillus clavatus with Potential Application for Agroindustrial Residues Saccharification. Appl Biochem Biotechnol 2020; 191:1111-1126. [PMID: 31960367 DOI: 10.1007/s12010-020-03232-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 01/08/2020] [Indexed: 01/30/2023]
Abstract
The use of non-potable water (such as seawater) is an attractive alternative for water intensive processes such as biomass pretreatment and saccharification steps in the production of biochemicals and biofuels. Identification and application of halotolerant enzymes compatible with high-salt conditions may reduce the energy needed for non-potable water treatment and decrease waste treatment costs. Here we present the biochemical properties of a halotolerant endo-1,4-β-xylanase produced by Aspergillus clavatus in submerged fermentation, using paper sludge (XPS) and sugarcane bagasse (XSCB), and its potential application in the hydrolysis of agroindustrial residues. The peptide mass fingerprint and amino acid sequencing of the XPS and XSCB enzymes showed primary structure similarities with an endo-1,4-β-xylanase from Aspergillus clavatus (XYNA_ASPCL). Both enzyme preparations presented good thermal stability at 50 °C and were stable over a wide range of pH and Vmax up to 2450 U/mg for XPS. XPS and XSCB were almost fully stable even after 24 h of incubation in the presence of up to 3 M NaCl, and their activity were not affected by 500 mM NaCl. Both enzyme preparations were capable of hydrolyzing paper sludge and sugarcane bagasse to release reducing sugars. These characteristics make this xylanase attractive to be used in the hydrolysis of biomass, particularly with brackish water or seawater.
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Affiliation(s)
- Thiago Machado Pasin
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, 14049-900, Brazil
- Department of Chemistry and Chemical Biology, Indiana University-Purdue University Indianapolis, Indianapolis, IN, USA
| | - José Carlos Santos Salgado
- Department of Chemistry, Faculty of Philosophy, Sciences and Letters of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, 14040-901, Brazil
| | - Ana Sílvia de Almeida Scarcella
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, 14049-900, Brazil
| | - Tássio Brito de Oliveira
- Department of Biology, Faculty of Philosophy, Sciences and Letters of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, 14040-901, Brazil
| | - Rosymar Coutinho de Lucas
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, 14049-900, Brazil
- Department of Biology, Faculty of Philosophy, Sciences and Letters of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, 14040-901, Brazil
| | - Mariana Cereia
- Department of Biology, Faculty of Philosophy, Sciences and Letters of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, 14040-901, Brazil
| | - José César Rosa
- Protein Chemistry Center and Department of Molecular and Cell Biology and Pathogenic Bioagents, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, 14049-900, Brazil
| | - Richard John Ward
- Department of Chemistry, Faculty of Philosophy, Sciences and Letters of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, 14040-901, Brazil
| | | | - Maria de Lourdes Teixeira de Moraes Polizeli
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, 14049-900, Brazil.
- Department of Biology, Faculty of Philosophy, Sciences and Letters of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, 14040-901, Brazil.
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17
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Jardim VC, Santos SDS, Fujita A, Buckeridge MS. BioNetStat: A Tool for Biological Networks Differential Analysis. Front Genet 2019; 10:594. [PMID: 31293621 PMCID: PMC6598498 DOI: 10.3389/fgene.2019.00594] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 06/05/2019] [Indexed: 01/25/2023] Open
Abstract
The study of interactions among biological components can be carried out by using methods grounded on network theory. Most of these methods focus on the comparison of two biological networks (e.g., control vs. disease). However, biological systems often present more than two biological states (e.g., tumor grades). To compare two or more networks simultaneously, we developed BioNetStat, a Bioconductor package with a user-friendly graphical interface. BioNetStat compares correlation networks based on the probability distribution of a feature of the graph (e.g., centrality measures). The analysis of the structural alterations on the network reveals significant modifications in the system. For example, the analysis of centrality measures provides information about how the relevance of the nodes changes among the biological states. We evaluated the performance of BioNetStat in both, toy models and two case studies. The latter related to gene expression of tumor cells and plant metabolism. Results based on simulated scenarios suggest that the statistical power of BioNetStat is less sensitive to the increase of the number of networks than Gene Set Coexpression Analysis (GSCA). Also, besides being able to identify nodes with modified centralities, BioNetStat identified altered networks associated with signaling pathways that were not identified by other methods.
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Affiliation(s)
- Vinícius Carvalho Jardim
- Department of Computer Science, Institute of Mathematics and Statistics, University of São Paulo, São Paulo, Brazil
- Department of Botany, Institute of Biosciences, University of São Paulo, São Paulo, Brazil
| | - Suzana de Siqueira Santos
- Department of Computer Science, Institute of Mathematics and Statistics, University of São Paulo, São Paulo, Brazil
| | - Andre Fujita
- Department of Computer Science, Institute of Mathematics and Statistics, University of São Paulo, São Paulo, Brazil
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18
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Locosselli GM, Camargo EPD, Moreira TCL, Todesco E, Andrade MDF, André CDSD, André PAD, Singer JM, Ferreira LS, Saldiva PHN, Buckeridge MS. The role of air pollution and climate on the growth of urban trees. Sci Total Environ 2019; 666:652-661. [PMID: 30807955 DOI: 10.1016/j.scitotenv.2019.02.291] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 02/13/2019] [Accepted: 02/18/2019] [Indexed: 06/09/2023]
Abstract
The urban environment features poor air quality and harsher climate conditions that affect the life in the cities. Citizens are especially vulnerable to climate change, because heat island and impervious exacerbates extreme climate events. Urban trees are important tools for mitigation and adaptation of cities to climate change because they provide ecosystem services that increase while trees grow. Nonetheless, the growth of trees may be affected by the harsher conditions found in the urban environment. We assessed the impact of air pollution and climate on the spatial/temporal variability of tree growth in São Paulo, Brazil, one of the largest urban conglomerates in the world. For this purpose, we sampled 41 trees of the Tipuana tipu species in a region that includes industrial areas. We built a tree-ring chronology using standard dendrochronological methods. Spatial analyses show that trees grow faster in the warmer parts of the city and under higher concentrations of airborne P, whereas growth is reduced under higher concentrations of Al, Ba, Zn. Particulate matter (PM10) from the industrial cluster also reduce average growth rate of trees, up to 37% in all diameter classes. Similar results were obtained via temporal analyses, suggesting that the annual growth rate is positively associated with temperature, which explain 16% of interannual growth variability. Precipitation, on the other hand, has no association with tree growth. The average concentration of PM10 explains 41% of interannual growth variability, and higher concentrations during the driest months reduce growth rate. Despite heat island effect and water limitation in the soil of the city, this species takes advantage of warmer conditions and it is not limited by water availability as measured by precipitation. On the other hand, air pollution directly impacts the growth of these trees being a major limiting growth factor.
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Affiliation(s)
- Giuliano Maselli Locosselli
- Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil; Instituto de Estudos Avançados, Universidade de São Paulo, São Paulo, Brazil
| | - Evelyn Pereira de Camargo
- Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil; Instituto de Estudos Avançados, Universidade de São Paulo, São Paulo, Brazil
| | | | - Enzo Todesco
- Instituto de Astronomia e Geofísica, Universidade de São Paulo, São Paulo, Brazil
| | | | | | | | - Julio M Singer
- Instituto de Matemática e Estatística, Universidade de São Paulo, São Paulo, Brazil
| | | | - Paulo Hilário Nascimento Saldiva
- Instituto de Estudos Avançados, Universidade de São Paulo, São Paulo, Brazil; Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - Marcos Silveira Buckeridge
- Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil; Instituto de Estudos Avançados, Universidade de São Paulo, São Paulo, Brazil.
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19
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Corrêa TLR, Júnior AT, Wolf LD, Buckeridge MS, dos Santos LV, Murakami MT. An actinobacteria lytic polysaccharide monooxygenase acts on both cellulose and xylan to boost biomass saccharification. Biotechnol Biofuels 2019; 12:117. [PMID: 31168322 PMCID: PMC6509861 DOI: 10.1186/s13068-019-1449-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 04/22/2019] [Indexed: 05/06/2023]
Abstract
BACKGROUND Lytic polysaccharide monooxygenases (LPMOs) opened a new horizon for biomass deconstruction. They use a redox mechanism not yet fully understood and the range of substrates initially envisaged to be the crystalline polysaccharides is steadily expanding to non-crystalline ones. RESULTS The enzyme KpLPMO10A from the actinomycete Kitasatospora papulosa was cloned and overexpressed in Escherichia coli cells in the functional form with native N-terminal. The enzyme can release oxidized species from chitin (C1-type oxidation) and cellulose (C1/C4-type oxidation) similarly to other AA10 members from clade II (subclade A). Interestingly, KpLPMO10A also cleaves isolated xylan (not complexed with cellulose, C4-type oxidation), a rare activity among LPMOs not described yet for the AA10 family. The synergistic effect of KpLPMO10A with Celluclast® and an endo-β-1,4-xylanase also supports this finding. The crystallographic elucidation of KpLPMO10A at 1.6 Å resolution along with extensive structural analyses did not indicate any evident difference with other characterized AA10 LPMOs at the catalytic interface, tempting us to suggest that these enzymes might also be active on xylan or that the ability to attack both crystalline and non-crystalline substrates involves yet obscure mechanisms of substrate recognition and binding. CONCLUSIONS This work expands the spectrum of substrates recognized by AA10 family, opening a new perspective for the understanding of the synergistic effect of these enzymes with canonical glycoside hydrolases to deconstruct ligno(hemi)cellulosic biomass.
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Affiliation(s)
- Thamy Lívia Ribeiro Corrêa
- Brazilian Bioethanol Science and Technology Laboratory (CTBE), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, SP Brazil
| | - Atílio Tomazini Júnior
- Brazilian Bioethanol Science and Technology Laboratory (CTBE), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, SP Brazil
| | - Lúcia Daniela Wolf
- Brazilian Bioethanol Science and Technology Laboratory (CTBE), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, SP Brazil
| | | | - Leandro Vieira dos Santos
- Brazilian Bioethanol Science and Technology Laboratory (CTBE), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, SP Brazil
| | - Mario Tyago Murakami
- Brazilian Bioethanol Science and Technology Laboratory (CTBE), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, SP Brazil
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20
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Palacios CJ, Grandis A, Carvalho VJ, Salatino A, Buckeridge MS. Isolated and combined effects of elevated CO 2 and high temperature on the whole-plant biomass and the chemical composition of soybean seeds. Food Chem 2019; 275:610-617. [PMID: 30724240 DOI: 10.1016/j.foodchem.2018.09.052] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2018] [Revised: 09/07/2018] [Accepted: 09/09/2018] [Indexed: 10/28/2022]
Abstract
Soybean plants of the variety 'MG/BR Conquista' were grown in open top chambers, simulating elevated CO2 concentration ([CO2]) and high temperature under the following treatments: 1) ambient [CO2] and ambient temperature (Amb); 2) elevated [CO2] (eCO2) and ambient temperature (Elev); 3) ambient [CO2] and high temperature (Amb/Temp); 4) elevated CO2 and high temperature (Elev/Temp). The aim was to evaluate responses to elevated [CO2] and high temperature, with focus on plant development and seed yield, and composition. Elev stimulated grain yield and Amb/Temp had opposite effect. Several biochemical parameters were affected by Amb/Temp, most of them reversed by simultaneous application of Elev. The oil obtained with Elev/Temp had lower degree of unsaturation. A network of relationships among biochemical parameters of grains at three developmental stages revealed that Amb/Temp and Elev/Temp affect significantly both carbohydrate and lipid metabolisms. No significant difference was obtained comparing networks corresponding to Amb and Elev/Temp.
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Affiliation(s)
- C J Palacios
- Laboratory of Phytochemistry, Department of Botany, Institute of Biosciences, University of São Paulo, Brazil
| | - A Grandis
- Laboratory of Plant Physiological Ecology (LAFIECO), Department of Botany, Institute of Biosciences, University of São Paulo, Brazil
| | - V J Carvalho
- Laboratory of Plant Physiological Ecology (LAFIECO), Department of Botany, Institute of Biosciences, University of São Paulo, Brazil
| | - A Salatino
- Laboratory of Phytochemistry, Department of Botany, Institute of Biosciences, University of São Paulo, Brazil
| | - M S Buckeridge
- Laboratory of Plant Physiological Ecology (LAFIECO), Department of Botany, Institute of Biosciences, University of São Paulo, Brazil.
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21
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Bencke-Malato M, De Souza AP, Ribeiro-Alves M, Schmitz JF, Buckeridge MS, Alves-Ferreira M. Short-term responses of soybean roots to individual and combinatorial effects of elevated [CO 2] and water deficit. Plant Sci 2019; 280:283-296. [PMID: 30824006 DOI: 10.1016/j.plantsci.2018.12.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 11/14/2018] [Accepted: 12/18/2018] [Indexed: 05/15/2023]
Abstract
Climate change increasingly threatens plant growth and productivity. Soybean (Glycine max) is one of the most important crops in the world. Although its responses to increased atmospheric carbon dioxide concentration ([CO2]) have been previously studied, root molecular responses to elevated [CO2] (E[CO2]) or the combination/interaction of E[CO2] and water deficit remain unexamined. In this study, we evaluated the individual and combinatory effects of E[CO2] and water deficit on the physiology and root molecular responses in soybean. Plants growing under E[CO2] exhibited increased photosynthesis that resulted in a higher biomass, plant height, and leaf area. E[CO2] decreased the transcripts levels of genes involved in iron uptake and transport, antioxidant activity, secondary metabolism and defense, and stress responses in roots. When plants grown under E[CO2] are treated with instantaneous water deficit, E[CO2] reverted the expression of water deficit-induced genes related to stress, defense, transport and nutrient deficiency. Furthermore, the interaction of both treatments uniquely affected the expression of genes. Both physiological and transcriptomic analyses demonstrated that E[CO2] may mitigate the negative effects of water deficit on the soybean roots. In addition, the identification of genes that are modulated by the interaction of E[CO2] and water deficit suggests an emergent response that is triggered only under this specific condition.
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Affiliation(s)
- Marta Bencke-Malato
- Departamento de Genética, Universidade Federal do Rio de Janeiro (UFRJ), Instituto de Biologia, s/n Prédio do CCS, 2° andar-sala 93, Rio de Janeiro, RJ, 219410-970, Brazil.
| | - Amanda Pereira De Souza
- Departamento de Botânica, Universidade de São Paulo (USP), Instituto de Biociências, Rua do Matão, 277, sala 122, Cidade Universitária - Butantã, São Paulo, SP, 05508-090, Brazil.
| | - Marcelo Ribeiro-Alves
- Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz -(FIOCRUZ) Av. Brasil, 4365-Manguinhos, Rio de Janeiro, RJ, 21040-900, Brazil.
| | - Jacqueline Flores Schmitz
- Departamento de Genética, Universidade Federal do Rio de Janeiro (UFRJ), Instituto de Biologia, s/n Prédio do CCS, 2° andar-sala 93, Rio de Janeiro, RJ, 219410-970, Brazil.
| | - Marcos Silveira Buckeridge
- Departamento de Botânica, Universidade de São Paulo (USP), Instituto de Biociências, Rua do Matão, 277, sala 122, Cidade Universitária - Butantã, São Paulo, SP, 05508-090, Brazil.
| | - Marcio Alves-Ferreira
- Departamento de Genética, Universidade Federal do Rio de Janeiro (UFRJ), Instituto de Biologia, s/n Prédio do CCS, 2° andar-sala 93, Rio de Janeiro, RJ, 219410-970, Brazil.
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22
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Locosselli GM, Chacón-Madrid K, Zezzi Arruda MA, Pereira de Camargo E, Lopes Moreira TC, Saldiva de André CD, Afonso de André P, Singer JM, Nascimento Saldiva PH, Buckeridge MS. Tree rings reveal the reduction of Cd, Cu, Ni and Pb pollution in the central region of São Paulo, Brazil. Environ Pollut 2018; 242:320-328. [PMID: 29990939 DOI: 10.1016/j.envpol.2018.06.098] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 06/19/2018] [Accepted: 06/28/2018] [Indexed: 06/08/2023]
Abstract
The concern about environmental pollution has risen in the last decades because of its effects on human's health. However, evaluation of the exposure to certain pollutants is currently hampered by the availability of past environmental data. Tree rings are an alternative to reconstruct environmental variability of pre-instrumental periods. Nevertheless, this approach has some reported limitations including migration of chemical elements in the tree rings. The aim of this study was to evaluate the distribution of Cd, Cu, Hg, Na, Ni, Pb, Zn in the tree rings of Tipuana tipu (Fabaceae) to aid the reconstruction of past environmental pollution. We sampled trees in the central region of the city of São Paulo, Brazil, and scanned their tree rings using LA-ICP-MS. We used these data to evaluate the temporal trends of chemical elements under investigation. Results show a non-random distribution of these chemical elements within the tree rings, with higher content in the cell-walls of vessels and lower content in the fibers. Sodium was the only element intimately related to the axial parenchyma cells. Due to differences in elemental composition of xylem cells, temporal trends where evaluated using distinct quartiles of data distribution in each tree ring. The first quartile represents the lower content found in fibers and parenchyma, while the third quartile corresponds to the higher content found in vessels. Data from vessels better represent the decreasing trend of Cd, Cu, Pb, and Ni in the last three decades. This reduction is less significant for Na and Zn. Our results highlight the potential to improve the records of environmental pollution using data from different cells. Pronounced reduction in Pb may be attributed to the lead phase-out in gasoline, while the decreasing trend of Cd, Cu, Ni pollution is probably related to increasing efficiency of vehicles and the deindustrialization of São Paulo. Chemical elements are non-randomly distributed in tree rings. Chemical content of vessels cell-walls is a reliable record of metal pollution, which is decreasing in São Paulo.
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Affiliation(s)
- Giuliano Maselli Locosselli
- Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil; Instituto de Estudos Avançados, Universidade de São Paulo, São Paulo, Brazil
| | | | | | - Evelyn Pereira de Camargo
- Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil; Instituto de Estudos Avançados, Universidade de São Paulo, São Paulo, Brazil
| | | | | | | | - Julio M Singer
- Instituto de Matemática e Estatística, Universidade de São Paulo, São Paulo, Brazil
| | - Paulo Hilário Nascimento Saldiva
- Instituto de Estudos Avançados, Universidade de São Paulo, São Paulo, Brazil; Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - Marcos Silveira Buckeridge
- Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil; Instituto de Estudos Avançados, Universidade de São Paulo, São Paulo, Brazil.
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23
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Leite DCC, Grandis A, Tavares EQP, Piovezani AR, Pattathil S, Avci U, Rossini A, Cambler A, De Souza AP, Hahn MG, Buckeridge MS. Cell wall changes during the formation of aerenchyma in sugarcane roots. Ann Bot 2017; 120:693-708. [PMID: 29106454 PMCID: PMC5714247 DOI: 10.1093/aob/mcx050] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 04/05/2017] [Indexed: 05/09/2023]
Abstract
Background and Aims Aerenchyma develops in different plant organs and leads to the formation of intercellular spaces that can be used by the plant to transport volatile substances. Little is known about the role of cell walls in this process, although the mechanism of aerenchyma formation is known to involve programmed cell death and some cell wall modifications. We assessed the role that cell wall-related mechanisms might play in the formation of aerenchyma in sugarcane roots. Methods Sections of roots (5 cm) were subjected to microtomography analysis. These roots were divided into 1-cm segments and subjected to cell wall fractionation. We performed analyses of monosaccharides, oligosaccharides and lignin and glycome profiling. Sections were visualized by immunofluorescence and immunogold labelling using selected monoclonal antibodies against polysaccharide epitopes according to the glycome profiles. Key Results During aerenchyma formation, gas spaces occupied up to 40 % of the cortex cross-section within the first 5 cm of the root. As some of the cortex cells underwent dissolution of the middle lamellae, leading to cell separation, cell expansion took place along with cell death. Mixed-linkage β-glucan was degraded along with some homogalacturonan and galactan, culminating in the formation of cell wall composites made of xyloglucan, arabinoxylans, cellulose and possibly lignin. Conclusion The composites formed seem to play a role in the physical-chemical properties of the gas chambers, providing mechanical resistance to forces acting upon the root and at the same time decreasing permeability to gases.
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Affiliation(s)
- D C C Leite
- Laboratory of Plant Physiological Ecology (LAFIECO), Department of Botany, Institute of Biosciences, University of São Paulo, Rua do Matão 277, Sao Paulo, SP, Brazil
| | - A Grandis
- Laboratory of Plant Physiological Ecology (LAFIECO), Department of Botany, Institute of Biosciences, University of São Paulo, Rua do Matão 277, Sao Paulo, SP, Brazil
| | - E Q P Tavares
- Laboratory of Plant Physiological Ecology (LAFIECO), Department of Botany, Institute of Biosciences, University of São Paulo, Rua do Matão 277, Sao Paulo, SP, Brazil
| | - A R Piovezani
- Laboratory of Plant Physiological Ecology (LAFIECO), Department of Botany, Institute of Biosciences, University of São Paulo, Rua do Matão 277, Sao Paulo, SP, Brazil
| | - S Pattathil
- BioEnergy Science Center, Complex Carbohydrate Research Center, The University of Georgia, 315 Riverbend Road, Athens, GA 30602, USA
| | - U Avci
- BioEnergy Science Center, Complex Carbohydrate Research Center, The University of Georgia, 315 Riverbend Road, Athens, GA 30602, USA
| | | | - A Cambler
- Laboratory of Plant Physiological Ecology (LAFIECO), Department of Botany, Institute of Biosciences, University of São Paulo, Rua do Matão 277, Sao Paulo, SP, Brazil
| | - A P De Souza
- Laboratory of Plant Physiological Ecology (LAFIECO), Department of Botany, Institute of Biosciences, University of São Paulo, Rua do Matão 277, Sao Paulo, SP, Brazil
| | - M G Hahn
- BioEnergy Science Center, Complex Carbohydrate Research Center, The University of Georgia, 315 Riverbend Road, Athens, GA 30602, USA
| | - M S Buckeridge
- Laboratory of Plant Physiological Ecology (LAFIECO), Department of Botany, Institute of Biosciences, University of São Paulo, Rua do Matão 277, Sao Paulo, SP, Brazil
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24
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Damasio ARDL, Rubio MV, Gonçalves TA, Persinoti GF, Segato F, Prade RA, Contesini FJ, de Souza AP, Buckeridge MS, Squina FM. Xyloglucan breakdown by endo-xyloglucanase family 74 from Aspergillus fumigatus. Appl Microbiol Biotechnol 2016; 101:2893-2903. [PMID: 28013403 DOI: 10.1007/s00253-016-8014-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Revised: 11/09/2016] [Accepted: 11/12/2016] [Indexed: 12/30/2022]
Abstract
Xyloglucan is the most abundant hemicellulose in primary walls of spermatophytes except for grasses. Xyloglucan-degrading enzymes are important in lignocellulosic biomass hydrolysis because they remove xyloglucan, which is abundant in monocot-derived biomass. Fungal genomes encode numerous xyloglucanase genes, belonging to at least six glycoside hydrolase (GH) families. GH74 endo-xyloglucanases cleave xyloglucan backbones with unsubstituted glucose at the -1 subsite or prefer xylosyl-substituted residues in the -1 subsite. In this work, 137 GH74-related genes were detected by examining 293 Eurotiomycete genomes and Ascomycete fungi contained one or no GH74 xyloglucanase gene per genome. Another interesting feature is that the triad of tryptophan residues along the catalytic cleft was found to be widely conserved among Ascomycetes. The GH74 from Aspergillus fumigatus (AfXEG74) was chosen as an example to conduct comprehensive biochemical studies to determine the catalytic mechanism. AfXEG74 has no CBM and cleaves the xyloglucan backbone between the unsubstituted glucose and xylose-substituted glucose at specific positions, along the XX motif when linked to regions deprived of galactosyl branches. It resembles an endo-processive activity, which after initial random hydrolysis releases xyloglucan-oligosaccharides as major reaction products. This work provides insights on phylogenetic diversity and catalytic mechanism of GH74 xyloglucanases from Ascomycete fungi.
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Affiliation(s)
- André Ricardo de Lima Damasio
- Laboratório Nacional de Ciência e Tecnologia do Bioetanol (CTBE), Centro Nacional de Pesquisa em Energia e Materiais (CNPEM), Campinas, SP, Brazil.,Department of Biochemistry and Tissue Biology, Institute of Biology, State University of Campinas, Campinas, SP, Brazil
| | - Marcelo Ventura Rubio
- Laboratório Nacional de Ciência e Tecnologia do Bioetanol (CTBE), Centro Nacional de Pesquisa em Energia e Materiais (CNPEM), Campinas, SP, Brazil.,Department of Biochemistry and Tissue Biology, Institute of Biology, State University of Campinas, Campinas, SP, Brazil
| | - Thiago Augusto Gonçalves
- Laboratório Nacional de Ciência e Tecnologia do Bioetanol (CTBE), Centro Nacional de Pesquisa em Energia e Materiais (CNPEM), Campinas, SP, Brazil.,Department of Biochemistry and Tissue Biology, Institute of Biology, State University of Campinas, Campinas, SP, Brazil
| | - Gabriela Felix Persinoti
- Laboratório Nacional de Ciência e Tecnologia do Bioetanol (CTBE), Centro Nacional de Pesquisa em Energia e Materiais (CNPEM), Campinas, SP, Brazil
| | - Fernando Segato
- Laboratório Nacional de Ciência e Tecnologia do Bioetanol (CTBE), Centro Nacional de Pesquisa em Energia e Materiais (CNPEM), Campinas, SP, Brazil.,Departamento de Biotecnologia, Escola de Engenharia de Lorena (EEL), Universidade de São Paulo (USP), Lorena, SP, Brazil
| | - Rolf Alexander Prade
- Department of Microbiology and Molecular Genetics, Oklahoma State University, Stillwater, OK, USA
| | - Fabiano Jares Contesini
- Laboratório Nacional de Ciência e Tecnologia do Bioetanol (CTBE), Centro Nacional de Pesquisa em Energia e Materiais (CNPEM), Campinas, SP, Brazil
| | - Amanda Pereira de Souza
- Laboratório de Fisiologia e Ecologia de Plantas (LAFIECO), Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo (USP), São Paulo, SP, Brazil
| | - Marcos Silveira Buckeridge
- Laboratório de Fisiologia e Ecologia de Plantas (LAFIECO), Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo (USP), São Paulo, SP, Brazil
| | - Fabio Marcio Squina
- Laboratório Nacional de Ciência e Tecnologia do Bioetanol (CTBE), Centro Nacional de Pesquisa em Energia e Materiais (CNPEM), Campinas, SP, Brazil.
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25
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Martins MTB, de Souza WR, da Cunha BADB, Basso MF, de Oliveira NG, Vinecky F, Martins PK, de Oliveira PA, Arenque-Musa BC, de Souza AP, Buckeridge MS, Kobayashi AK, Quirino BF, Molinari HBC. Characterization of sugarcane (Saccharum spp.) leaf senescence: implications for biofuel production. Biotechnol Biofuels 2016; 9:153. [PMID: 27453728 PMCID: PMC4957918 DOI: 10.1186/s13068-016-0568-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Accepted: 07/12/2016] [Indexed: 05/29/2023]
Abstract
BACKGROUND Second-generation ethanol (2G-bioethanol) uses lignocellulosic feedstocks for ethanol production. Sugarcane is one among the most suitable crops for biofuel production. Its juice is extracted for sugar production, while sugarcane bagasse, straw, and senescing leaves are considered industrial waste. Senescence is the age-dependent deterioration of plant cells, ultimately leading to cell death and completion of the plant life cycle. Because senescing leaves may also be used for biofuel production, understanding the process of natural senescence, including remobilization of nutrients and its effect on cell walls can provide useful information for 2G-bioethanol production from sugarcane leaves. RESULTS The natural senescence process in leaves of the commercial sugarcane cultivar RB867515 was investigated. Senescence was characterized by strong reduction in photosynthetic pigments content, remobilization of the nutrients N, P, K, B, Cu, Fe, and Zn, and accumulation of Ca, S, Mg, B, Mn, and Al. No significant changes in the cell-wall composition occurred, and only small changes in the expression of cell wall-related genes were observed, suggesting that cell walls are preserved during senescence. Senescence-marker genes, such as SAG12-like and XET-like genes, were also identified in sugarcane and found to be highly expressed. CONCLUSIONS Our study on nutrient remobilization under senescence in a vigorous sugarcane cultivar can contribute to the understanding on how nutrient balance in a high-yielding crop is achieved. In general, neutral monosaccharide profile did not change significantly with leaf senescence, suggesting that senescing leaves of sugarcane can be as a feedstock for biofuel production using pretreatments established for non-senescing leaves without additional efforts. Based on our findings, the potential biotechnological applications for the improvement of sugarcane cultivars are discussed.
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Affiliation(s)
- Maria Thereza Bazzo Martins
- />Genetics and Biotechnology Laboratory, Embrapa Agroenergy (CNPAE), Brasília, DF 70770-901 Brazil
- />Genomic Sciences and Biotechnology Program, Universidade Catolica de Brasilia, Brasília, DF 70790‑160 Brazil
| | - Wagner Rodrigo de Souza
- />Genetics and Biotechnology Laboratory, Embrapa Agroenergy (CNPAE), Brasília, DF 70770-901 Brazil
| | | | - Marcos Fernando Basso
- />Genetics and Biotechnology Laboratory, Embrapa Agroenergy (CNPAE), Brasília, DF 70770-901 Brazil
| | | | - Felipe Vinecky
- />Genetics and Biotechnology Laboratory, Embrapa Agroenergy (CNPAE), Brasília, DF 70770-901 Brazil
| | - Polyana Kelly Martins
- />Genetics and Biotechnology Laboratory, Embrapa Agroenergy (CNPAE), Brasília, DF 70770-901 Brazil
| | | | - Bruna Cersózimo Arenque-Musa
- />Laboratory of Plant Physiological Ecology (LAFIECO), Department of Botany-Institute of Biosciences, University of São Paulo, São Paulo, SP 05508-090 Brazil
| | - Amanda Pereira de Souza
- />Laboratory of Plant Physiological Ecology (LAFIECO), Department of Botany-Institute of Biosciences, University of São Paulo, São Paulo, SP 05508-090 Brazil
| | - Marcos Silveira Buckeridge
- />Laboratory of Plant Physiological Ecology (LAFIECO), Department of Botany-Institute of Biosciences, University of São Paulo, São Paulo, SP 05508-090 Brazil
| | - Adilson Kenji Kobayashi
- />Genetics and Biotechnology Laboratory, Embrapa Agroenergy (CNPAE), Brasília, DF 70770-901 Brazil
| | - Betania Ferraz Quirino
- />Genetics and Biotechnology Laboratory, Embrapa Agroenergy (CNPAE), Brasília, DF 70770-901 Brazil
- />Genomic Sciences and Biotechnology Program, Universidade Catolica de Brasilia, Brasília, DF 70790‑160 Brazil
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26
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Vitcosque GL, Ribeiro LFC, de Lucas RC, da Silva TM, Ribeiro LF, de Lima Damasio AR, Farinas CS, Gonçalves AZL, Segato F, Buckeridge MS, Jorge JA, Polizeli MDLTM. The functional properties of a xyloglucanase (GH12) of Aspergillus terreus expressed in Aspergillus nidulans may increase performance of biomass degradation. Appl Microbiol Biotechnol 2016; 100:9133-9144. [PMID: 27245677 DOI: 10.1007/s00253-016-7589-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 04/24/2016] [Accepted: 05/04/2016] [Indexed: 11/28/2022]
Abstract
Filamentous fungi are attractive hosts for heterologous protein expression due to their capacity to secrete large amounts of enzymes into the extracellular medium. Xyloglucanases, which specifically hydrolyze xyloglucan, have been recently applied in lignocellulosic biomass degradation and conversion in many other industrial processes. In this context, this work aimed to clone, express, and determine the functional properties of a recombinant xyloglucanase (AtXEG12) from Aspergillus terreus, and also its solid-state (SSF) and submerged (SmF) fermentation in bioreactors. The purified AtXEG12 showed optimum pH and temperature of 5.5 and 65 °C, respectively, demonstrating to be 90 % stable after 24 h of incubation at 50 °C. AtXEG12 activity increased in the presence of 2-mercaptoethanol (65 %) and Zn+2 (45 %), while Cu+2 and Ag+ ions drastically decreased its activity. A substrate assay showed, for the first time for this enzyme's family, xylanase activity. The enzyme exhibited high specificity for tamarind xyloglucan (K M 1.2 mg mL-1) and V max of 17.4 μmol min-1 mg-1 of protein. The capillary zone electrophoresis analysis revealed that AtXEG12 is an endo-xyloglucanase. The heterologous xyloglucanase secretion was greater than the production by wild-type A. terreus cultivated in SmF. On the other hand, AtXEG12 activity reached by SSF was sevenfold higher than values achieved by SmF, showing that the expression of recombinant enzymes can be significantly improved by cultivation under SSF.
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Affiliation(s)
- Gabriela Leal Vitcosque
- Departamento de Bioquímica e Imunologia, FMRP, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Liliane Fraga Costa Ribeiro
- Departamento de Bioquímica e Imunologia, FMRP, Universidade de São Paulo, Ribeirão Preto, SP, Brazil.,Chemical Biochemical Environmental Engineering Department, University of Maryland, Baltimore County, MD, USA
| | - Rosymar Coutinho de Lucas
- Departamento de Bioquímica e Imunologia, FMRP, Universidade de São Paulo, Ribeirão Preto, SP, Brazil.,Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes, 3900, Ribeirão Preto, SP, 14040-901, Brazil
| | - Tony Marcio da Silva
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes, 3900, Ribeirão Preto, SP, 14040-901, Brazil.,Instituto de Ciências da Saúde, Agrárias e Humanas do Centro Universitário do Planalto de Araxà (UNIARAXÀ), Araxà, MG, Brazil
| | - Lucas Ferreira Ribeiro
- Departamento de Bioquímica e Imunologia, FMRP, Universidade de São Paulo, Ribeirão Preto, SP, Brazil.,Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD, USA
| | - André Ricardo de Lima Damasio
- Departamento de Bioquímica e Biologia Tecidual, Instituto de Biologia, Universidade de Campinas, Campinas, SP, Brazil
| | | | - Aline Zorzetto Lopes Gonçalves
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes, 3900, Ribeirão Preto, SP, 14040-901, Brazil
| | - Fernando Segato
- Departamento de Biotecnologia, Escola de Engenharia de Lorena, Universidade de São Paulo, São Paulo, SP, Brazil
| | | | - João Atilio Jorge
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes, 3900, Ribeirão Preto, SP, 14040-901, Brazil
| | - Maria de Lourdes T M Polizeli
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes, 3900, Ribeirão Preto, SP, 14040-901, Brazil.
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27
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Ferreira SS, Hotta CT, Poelking VGDC, Leite DCC, Buckeridge MS, Loureiro ME, Barbosa MHP, Carneiro MS, Souza GM. Co-expression network analysis reveals transcription factors associated to cell wall biosynthesis in sugarcane. Plant Mol Biol 2016; 91:15-35. [PMID: 26820137 PMCID: PMC4837222 DOI: 10.1007/s11103-016-0434-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Accepted: 01/07/2016] [Indexed: 05/18/2023]
Abstract
Sugarcane is a hybrid of Saccharum officinarum and Saccharum spontaneum, with minor contributions from other species in Saccharum and other genera. Understanding the molecular basis of cell wall metabolism in sugarcane may allow for rational changes in fiber quality and content when designing new energy crops. This work describes a comparative expression profiling of sugarcane ancestral genotypes: S. officinarum, S. spontaneum and S. robustum and a commercial hybrid: RB867515, linking gene expression to phenotypes to identify genes for sugarcane improvement. Oligoarray experiments of leaves, immature and intermediate internodes, detected 12,621 sense and 995 antisense transcripts. Amino acid metabolism was particularly evident among pathways showing natural antisense transcripts expression. For all tissues sampled, expression analysis revealed 831, 674 and 648 differentially expressed genes in S. officinarum, S. robustum and S. spontaneum, respectively, using RB867515 as reference. Expression of sugar transporters might explain sucrose differences among genotypes, but an unexpected differential expression of histones were also identified between high and low Brix° genotypes. Lignin biosynthetic genes and bioenergetics-related genes were up-regulated in the high lignin genotype, suggesting that these genes are important for S. spontaneum to allocate carbon to lignin, while S. officinarum allocates it to sucrose storage. Co-expression network analysis identified 18 transcription factors possibly related to cell wall biosynthesis while in silico analysis detected cis-elements involved in cell wall biosynthesis in their promoters. Our results provide information to elucidate regulatory networks underlying traits of interest that will allow the improvement of sugarcane for biofuel and chemicals production.
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Affiliation(s)
| | | | - Viviane Guzzo de Carli Poelking
- Departamento de Biologia Vegetal, Universidade Federal de Viçosa, Viçosa, Brazil
- Universidade Federal do Recôncavo da Bahia, Cruz das Almas, Brazil
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28
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Lira BS, Rosado D, Almeida J, de Souza AP, Buckeridge MS, Purgatto E, Guyer L, Hörtensteiner S, Freschi L, Rossi M. Pheophytinase Knockdown Impacts Carbon Metabolism and Nutraceutical Content Under Normal Growth Conditions in Tomato. Plant Cell Physiol 2016; 57:642-653. [PMID: 26880818 DOI: 10.1093/pcp/pcw021] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 01/20/2016] [Indexed: 06/05/2023]
Abstract
Although chlorophyll (Chl) degradation is an essential biochemical pathway for plant physiology, our knowledge regarding this process still has unfilled gaps. Pheophytinase (PPH) was shown to be essential for Chl breakdown in dark-induced senescent leaves. However, the catalyzing enzymes involved in pigment turnover and fruit ripening-associated degreening are still controversial. Chl metabolism is closely linked to the biosynthesis of other isoprenoid-derived compounds, such as carotenoids and tocopherols, which are also components of the photosynthetic machinery. Chls, carotenoids and tocopherols share a common precursor, geranylgeranyl diphosphate, produced by the plastidial methylerythritol 4-phosphate (MEP) pathway. Additionally, the Chl degradation-derived phytol can be incorporated into tocopherol biosynthesis. In this context, tomato turns out to be an interesting model to address isoprenoid-metabolic cross-talk since fruit ripening combines degreening and an intensely active MEP leading to carotenoid accumulation. Here, we investigate the impact of PPH deficiency beyond senescence by the comprehensive phenotyping of SlPPH-knockdown tomato plants. In leaves, photosynthetic parameters indicate altered energy usage of excited Chl. As a mitigatory effect, photosynthesis-associated carotenoids increased while tocopherol content remained constant. Additionally, starch and soluble sugar profiles revealed a distinct pattern of carbon allocation in leaves that suggests enhanced sucrose exportation. The higher levels of carbohydrates in sink organs down-regulated carotenoid biosynthesis. Additionally, the reduction in Chl-derived phytol recycling resulted in decreased tocopherol content in transgenic ripe fruits. Summing up, tocopherol and carotenoid metabolism, together with the antioxidant capacity of the hydrophilic and hydrophobic fractions, were differentially affected in leaves and fruits of the transgenic plants. Thus, in tomato, PPH plays a role beyond senescence-associated Chl degradation that, when compromised, affects isoprenoid and carbon metabolism which ultimately alters the fruit's nutraceutical content.
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Affiliation(s)
- Bruno Silvestre Lira
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Daniele Rosado
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Juliana Almeida
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Amanda Pereira de Souza
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, SP, Brazil
| | | | - Eduardo Purgatto
- Departamento de Alimentos e Nutrição Experimental, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Luzia Guyer
- Institute of Plant Biology, University of Zurich, Zurich, Switzerland
| | | | - Luciano Freschi
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Magdalena Rossi
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, SP, Brazil
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29
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Barau J, Grandis A, Carvalho VMDA, Teixeira GS, Zaparoli GHA, do Rio MCS, Rincones J, Buckeridge MS, Pereira GAG. Apoplastic and intracellular plant sugars regulate developmental transitions in witches' broom disease of cacao. J Exp Bot 2015; 66:1325-37. [PMID: 25540440 PMCID: PMC4339597 DOI: 10.1093/jxb/eru485] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Witches' broom disease (WBD) of cacao differs from other typical hemibiotrophic plant diseases by its unusually long biotrophic phase. Plant carbon sources have been proposed to regulate WBD developmental transitions; however, nothing is known about their availability at the plant-fungus interface, the apoplastic fluid of cacao. Data are provided supporting a role for the dynamics of soluble carbon in the apoplastic fluid in prompting the end of the biotrophic phase of infection. Carbon depletion and the consequent fungal sensing of starvation were identified as key signalling factors at the apoplast. MpNEP2, a fungal effector of host necrosis, was found to be up-regulated in an autophagic-like response to carbon starvation in vitro. In addition, the in vivo artificial manipulation of carbon availability in the apoplastic fluid considerably modulated both its expression and plant necrosis rate. Strikingly, infected cacao tissues accumulated intracellular hexoses, and showed stunted photosynthesis and the up-regulation of senescence markers immediately prior to the transition to the necrotrophic phase. These opposite findings of carbon depletion and accumulation in different host cell compartments are discussed within the frame of WBD development. A model is suggested to explain phase transition as a synergic outcome of fungal-related factors released upon sensing of extracellular carbon starvation, and an early senescence of infected tissues probably triggered by intracellular sugar accumulation.
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Affiliation(s)
- Joan Barau
- Laboratório de Genômica e Expressão, Departamento de Genética, Evolução e Bioagentes, Instituto de Biologia, Universidade Estadual de Campinas-UNICAMP, CP 6109, Campinas-SP, CEP 13083-970, Brazil
| | - Adriana Grandis
- Laboratório de Fisiologia Ecológica de Plantas, Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo-USP, CP 11461, Rua do Matão 277, São Paulo-SP, CEP 05508-090, Brazil
| | - Vinicius Miessler de Andrade Carvalho
- Laboratório de Genômica e Expressão, Departamento de Genética, Evolução e Bioagentes, Instituto de Biologia, Universidade Estadual de Campinas-UNICAMP, CP 6109, Campinas-SP, CEP 13083-970, Brazil
| | - Gleidson Silva Teixeira
- Laboratório de Genômica e Expressão, Departamento de Genética, Evolução e Bioagentes, Instituto de Biologia, Universidade Estadual de Campinas-UNICAMP, CP 6109, Campinas-SP, CEP 13083-970, Brazil
| | - Gustavo Henrique Alcalá Zaparoli
- Laboratório de Genômica e Expressão, Departamento de Genética, Evolução e Bioagentes, Instituto de Biologia, Universidade Estadual de Campinas-UNICAMP, CP 6109, Campinas-SP, CEP 13083-970, Brazil
| | - Maria Carolina Scatolin do Rio
- Laboratório de Genômica e Expressão, Departamento de Genética, Evolução e Bioagentes, Instituto de Biologia, Universidade Estadual de Campinas-UNICAMP, CP 6109, Campinas-SP, CEP 13083-970, Brazil
| | - Johana Rincones
- Laboratório de Genômica e Expressão, Departamento de Genética, Evolução e Bioagentes, Instituto de Biologia, Universidade Estadual de Campinas-UNICAMP, CP 6109, Campinas-SP, CEP 13083-970, Brazil
| | - Marcos Silveira Buckeridge
- Laboratório de Fisiologia Ecológica de Plantas, Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo-USP, CP 11461, Rua do Matão 277, São Paulo-SP, CEP 05508-090, Brazil
| | - Gonçalo Amarante Guimarães Pereira
- Laboratório de Genômica e Expressão, Departamento de Genética, Evolução e Bioagentes, Instituto de Biologia, Universidade Estadual de Campinas-UNICAMP, CP 6109, Campinas-SP, CEP 13083-970, Brazil
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30
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Mendes de Rezende F, Pereira de Souza A, Silveira Buckeridge M, Maria Furlan C. Is guava phenolic metabolism influenced by elevated atmospheric CO2? Environ Pollut 2015; 196:483-488. [PMID: 25129845 DOI: 10.1016/j.envpol.2014.07.028] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2014] [Revised: 07/17/2014] [Accepted: 07/24/2014] [Indexed: 06/03/2023]
Abstract
Seedlings of Psidium guajava cv. Pedro Sato were distributed into four open-top chambers: two with ambient CO(2) (∼390 ppm) and two with elevated CO(2) (∼780 ppm). Monthly, five individuals of each chamber were collected, separated into root, stem and leaves and immediately frozen in liquid nitrogen. Chemical parameters were analyzed to investigate how guava invests the surplus carbon. For all classes of phenolic compounds analyzed only tannins showed significant increase in plants at elevated CO(2) after 90 days. There was no significant difference in dry biomass, but the leaves showed high accumulation of starch under elevated CO(2). Results suggest that elevated CO(2) seems to be favorable to seedlings of P. guajava, due to accumulation of starch and tannins, the latter being an important anti-herbivore substance.
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Affiliation(s)
- Fernanda Mendes de Rezende
- Department of Botany, Institute of Bioscience, University of São Paulo, Rua do Matão, 277, CEP 05508-090, São Paulo, SP, Brazil.
| | - Amanda Pereira de Souza
- Department of Botany, Institute of Bioscience, University of São Paulo, Rua do Matão, 277, CEP 05508-090, São Paulo, SP, Brazil
| | - Marcos Silveira Buckeridge
- Department of Botany, Institute of Bioscience, University of São Paulo, Rua do Matão, 277, CEP 05508-090, São Paulo, SP, Brazil
| | - Cláudia Maria Furlan
- Department of Botany, Institute of Bioscience, University of São Paulo, Rua do Matão, 277, CEP 05508-090, São Paulo, SP, Brazil
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31
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Turra A, Cróquer A, Carranza A, Mansilla A, Areces AJ, Werlinger C, Martínez-Bayón C, Nassar CAG, Plastino E, Schwindt E, Scarabino F, Chow F, Figueroa FL, Berchez F, Hall-Spencer JM, Soto LA, Buckeridge MS, Copertino MS, de Széchy MTM, Ghilardi-Lopes NP, Horta P, Coutinho R, Fraschetti S, Leão ZMDAN. Global environmental changes: setting priorities for Latin American coastal habitats. Glob Chang Biol 2013; 19:1965-1969. [PMID: 23504820 DOI: 10.1111/gcb.12186] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2012] [Accepted: 02/13/2013] [Indexed: 06/01/2023]
Abstract
As the effects of the Global Climate Changes on the costal regions of Central and South Americas advance, there is proportionally little research being made to understand such impacts. This commentary puts forward a series of propositions of strategies to improve performance of Central and South American science and policy making in order to cope with the future impacts of the Global Climate Changes in their coastal habitats.
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Affiliation(s)
- Alexander Turra
- Departamento de Oceanografia Biológica, Universiade de São Paulo, Cidade Universitária, Praça do Oceanográfico, Sao Paulo, Brazil
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Buckeridge MS. Seed cell wall storage polysaccharides: models to understand cell wall biosynthesis and degradation. Plant Physiol 2010; 154:1017-23. [PMID: 20855518 PMCID: PMC2971584 DOI: 10.1104/pp.110.158642] [Citation(s) in RCA: 116] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2010] [Accepted: 09/19/2010] [Indexed: 05/18/2023]
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Buckeridge MS. Seed cell wall storage polysaccharides: models to understand cell wall biosynthesis and degradation. Plant Physiol 2010. [PMID: 20855518 DOI: 10.1104/pp.110.158642/0032-0889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
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Tonini PP, Purgatto E, Buckeridge MS. Effects of abscisic acid, ethylene and sugars on the mobilization of storage proteins and carbohydrates in seeds of the tropical tree Sesbania virgata (Leguminosae). Ann Bot 2010; 106:607-16. [PMID: 20705626 PMCID: PMC2944982 DOI: 10.1093/aob/mcq159] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2010] [Revised: 06/08/2010] [Accepted: 07/01/2010] [Indexed: 05/25/2023]
Abstract
BACKGROUND AND AIMS Endospermic legumes are abundant in tropical forests and their establishment is closely related to the mobilization of cell-wall storage polysaccharides. Endosperm cells also store large numbers of protein bodies that play an important role as a nitrogen reserve in this seed. In this work, a systems approach was adopted to evaluate some of the changes in carbohydrates and hormones during the development of seedlings of the rain forest tree Sesbania virgata during the period of establishment. METHODS Seeds imbibed abscisic acid (ABA), glucose and sucrose in an atmosphere of ethylene, and the effects of these compounds on the protein contents, α-galactosidase activity and endogenous production of ABA and ethylene by the seeds were observed. KEY RESULTS The presence of exogenous ABA retarded the degradation of storage protein in the endosperm and decreased α-galactosidase activity in the same tissue during galactomannan degradation, suggesting that ABA represses enzyme action. On the other hand, exogenous ethylene increased α-galactosidase activity in both the endosperm and testa during galactomannan degradation, suggesting an inducing effect of this hormone on the hydrolytic enzymes. Furthermore, the detection of endogenous ABA and ethylene production during the period of storage mobilization and the changes observed in the production of these endogenous hormones in the presence of glucose and sucrose, suggested a correlation between the signalling pathway of these hormones and the sugars. CONCLUSIONS These findings suggest that ABA, ethylene and sugars play a role in the control of the hydrolytic enzyme activities in seeds of S. virgata, controlling the process of storage degradation. This is thought to ensure a balanced flow of the carbon and nitrogen for seedling development.
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Affiliation(s)
- Patricia Pinho Tonini
- University of São Paulo, Institute of Bioscience, Department of Botany, Postal Code 11461, São Paulo – SP, Brazil
| | - Eduardo Purgatto
- University of São Paulo, Faculty of Pharmaceutical Science, Department of Food and Experimental Nutrition, Postal Code 66083, São Paulo – SP, Brazil
| | - Marcos Silveira Buckeridge
- University of São Paulo, Institute of Bioscience, Department of Botany, Postal Code 11461, São Paulo – SP, Brazil
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35
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Cordenunsi B, Saura-Calixto F, Diaz-Rubio ME, Zuleta A, Tiné MA, Buckeridge MS, Silva GBD, Carpio C, Giuntini EB, Menezes EWD, Lajolo F. Carbohydrate composition of ripe pineapple (cv. perola) and the glycemic response in humans. Ciênc Tecnol Aliment 2010. [DOI: 10.1590/s0101-20612010000100041] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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da Silva Ferreira C, Piedade MTF, Tiné MAS, Rossatto DR, Parolin P, Buckeridge MS. The role of carbohydrates in seed germination and seedling establishment of Himatanthus sucuuba, an Amazonian tree with populations adapted to flooded and non-flooded conditions. Ann Bot 2009; 104:1111-9. [PMID: 19770164 PMCID: PMC2766203 DOI: 10.1093/aob/mcp212] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2009] [Revised: 05/22/2009] [Accepted: 07/20/2009] [Indexed: 05/21/2023]
Abstract
BACKGROUND AND AIMS In the Amazonian floodplains plants withstand annual periods of flooding which can last 7 months. Under these conditions seedlings remain submerged in the dark for long periods since light penetration in the water is limited. Himatanthus sucuuba is a tree species found in the 'várzea' (VZ) floodplains and adjacent non-flooded 'terra-firme' (TF) forests. Biochemical traits which enhance flood tolerance and colonization success of H. sucuuba in periodically flooded environments were investigated. METHODS Storage carbohydrates of seeds of VZ and TF populations were extracted and analysed by HPAEC/PAD. Starch was analysed by enzyme (glucoamylase) degradation followed by quantification of glucose oxidase. Carbohydrate composition of roots of VZ and TF seedlings was studied after experimental exposure to a 15-d period of submersion in light versus darkness. KEY RESULTS The endosperm contains a large proportion of the seed reserves, raffinose being the main non-structural carbohydrate. Around 93 % of the cell wall storage polysaccharides (percentage dry weight basis) in the endosperm of VZ seeds was composed of mannose, while soluble sugars accounted for 2.5%. In contrast, 74 % of the endosperm in TF seeds was composed of galactomannans, while 22 % of the endosperm was soluble sugars. This suggested a larger carbohydrate allocation to germination in TF populations whereas VZ populations allocate comparatively more to carbohydrates mobilized during seedling development. The concentration of root non-structural carbohydrates in non-flooded seedlings strongly decreased after a 15-d period of darkness, whereas flooded seedlings were less affected. These effects were more pronounced in TF seedlings, which showed significantly lower root non-structural carbohydrate concentrations. CONCLUSIONS There seem to be metabolic adjustments in VZ but not TF seedlings that lead to adaptation to the combined stresses of darkness and flooding. This seems to be important for the survival of the species in these contrasting environments, leading these populations to different directions during evolution.
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Affiliation(s)
- Cristiane da Silva Ferreira
- Instituto Nacional de Pesquisas da Amazônia (INPA), Projeto INPA/Max-Planck, 69011-970, Manaus, Brazil
- Department of Botany, University of Brasilia, Brasilia, DF, 70904-970, Brazil
| | | | - Marco Aurélio Silva Tiné
- Instituto de Botânica, Seção de Fisiologia e Bioquímica de Plantas, São Paulo, SP, 04301-012, Brazil
| | | | - Pia Parolin
- Biocentre Klein Flottbek, Dept of Plant Systematics, University of Hamburg, Germany
| | - Marcos Silveira Buckeridge
- Universidade de São Paulo, Instituto de Biociências, Departamento de Botânica, São Paulo, SP, 05422-970, Brazil
- Corresponding author. E-mail
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De Souza AP, Gaspar M, Da Silva EA, Ulian EC, Waclawovsky AJ, Nishiyama MY, Dos Santos RV, Teixeira MM, Souza GM, Buckeridge MS. Elevated CO2 increases photosynthesis, biomass and productivity, and modifies gene expression in sugarcane. Plant Cell Environ 2008; 31:1116-27. [PMID: 18433443 DOI: 10.1111/j.1365-3040.2008.01822.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Because of the economical relevance of sugarcane and its high potential as a source of biofuel, it is important to understand how this crop will respond to the foreseen increase in atmospheric [CO(2)]. The effects of increased [CO(2)] on photosynthesis, development and carbohydrate metabolism were studied in sugarcane (Saccharum ssp.). Plants were grown at ambient (approximately 370 ppm) and elevated (approximately 720 ppm) [CO(2)] during 50 weeks in open-top chambers. The plants grown under elevated CO(2) showed, at the end of such period, an increase of about 30% in photosynthesis and 17% in height, and accumulated 40% more biomass in comparison with the plants grown at ambient [CO(2)]. These plants also had lower stomatal conductance and transpiration rates (-37 and -32%, respectively), and higher water-use efficiency (c.a. 62%). cDNA microarray analyses revealed a differential expression of 35 genes on the leaves (14 repressed and 22 induced) by elevated CO(2). The latter are mainly related to photosynthesis and development. Industrial productivity analysis showed an increase of about 29% in sucrose content. These data suggest that sugarcane crops increase productivity in higher [CO(2)], and that this might be related, as previously observed for maize and sorghum, to transient drought stress.
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Affiliation(s)
- Amanda Pereira De Souza
- Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil
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Tiné MAS, Silva CO, Lima DUD, Carpita NC, Buckeridge MS. Fine structure of a mixed-oligomer storage xyloglucan from seeds of Hymenaea courbaril. Carbohydr Polym 2006. [DOI: 10.1016/j.carbpol.2006.03.032] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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de Alcântara PHN, Martim L, Silva CO, Dietrich SMC, Buckeridge MS. Purification of a beta-galactosidase from cotyledons of Hymenaea courbaril L. (Leguminosae). Enzyme properties and biological function. Plant Physiol Biochem 2006; 44:619-27. [PMID: 17137787 DOI: 10.1016/j.plaphy.2006.10.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2006] [Accepted: 10/09/2006] [Indexed: 05/12/2023]
Abstract
Beta-galactosidases are enzymes that can be found in most living beings and in the plant kingdom its activity and genes have been detected in several tissues such as ripening fruits, developing leaves and flowers and storage tissues such as cotyledons. In plants, their activities are usually associated with the secondary metabolism or with oligosaccharide or polysaccharide degradation. Polysaccharide specific beta-galactosidases include beta-galactanases, which attack pectic polymers and beta-galactosidases that attack xyloglucans (XG). In the present work we purified an XG-specific beta-galactosidase (named hcbetagal) from cotyledons of developing seedlings of Hymenaea courbaril, a legume tree from the Neotropical region of the world. The enzyme has a molecular weight of 52-62 kDa and was shown to attack specifically xyloglucan oligosaccharides (XGOs) but not the polymer. It has a pH optimum between 3 and 4 and at this pH range the enzyme increases activity linearly up to 50 degrees C. Kinetic studies showed that hcbetagal is inhibited competitively by free galactose (K(i) = 3.7). The biochemical properties of hcbetagal as a whole suggest that it is involved in storage xyloglucan mobilisation during seedling development. Its high specificity towards XGOs, the low pH optimum and the fact that it is inhibited by its product (galactose) suggest that hcbetagal might be one of the biochemical control points in xyloglucan catabolism in vivo. A possible relationship with functional stability of the wall during cell death as cotyledons undergo senescence is discussed.
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Affiliation(s)
- P H N de Alcântara
- Department of Botany, Institute of Biological Sciences, University of São Paulo, Rua do Matão, 277, Caixa Postal 11461, CEP 05422-970 Cidade Universitária, Butantã, SP, Brazil
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40
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Lisboa CGS, Tonini PP, Tiné MAS, Buckeridge MS. Endo-beta-mannanase from the endosperm of seeds of Sesbania virgata (Cav.) Pers. (Leguminosae): purification, characterisation and its dual role in germination and early seedling growth. ACTA ACUST UNITED AC 2006. [DOI: 10.1590/s1677-04202006000200003] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Galactomannans are storage cell wall polysaccharides present in seeds of some legumes. Their degradation is carried out by three hydrolases (alpha-galactosidase (EC 3.2.1.22), endo-beta-mannanase (EC 3.2.1.78) and ß-mannosidase (EC 3.2.1.25)). In the present study we purified and characterised an endo-beta-mannanase from seeds of Sesbania virgata and addressed its role in germination and seedling development. The polypeptide purified by Ion Exchange Chromatography and Affinity Chromatography on Sepharose-Concanavalin A, showed a pH optimum between 3.5 and 5 at 45ºC and high stability at pH 7.8. The low stability at pH 5 appears to be associated with isoelectric precipitation, in view of the pI of the enzyme being 4.5. The purified enzyme is a glycoprotein with a molecular mass of 26 KDa by SDS-PAGE and 36 KDa by gel chromatography. The purified polypeptide attacked galactomannan from different sources, being more effective on polymers with a lower degree of galactosylation (from carob gum), in comparison with medium or highly galactosylated galactomannans (from guar, S. virgata and fenugreek), respectively. A peak of endo-beta-mannanase activity was detected during radicle protrusion in the endosperm tissue surrounding the radicle and later on in the lateral endosperm. This second peak was associated with the period of reserve mobilisation. Using an antibody raised against coffee endo-beta-mannanase, the enzyme could be detected in immunodot-blots performed with extracts of S. virgata endosperms. The results are consistent with the hypothesis that the peak of endo-mannanase during germination facilitates radicle protrusion through the surrounding endosperm by weakening it in the region close to the radicle tip.
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Almeida EM, Costa PF, Buckeridge MS, Alves MAS. Potential bird dispersers of Psychotria in a area of Atlantic forest on Ilha Grande, RJ, Southeastern Brazil: a biochemical analysis of the fruits. BRAZ J BIOL 2006; 66:1-8. [PMID: 16680300 DOI: 10.1590/s1519-69842006000100002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The present study assessed the fruiting pattern, bird foraging behavior, and sugar content of ripe fruits of two sympatric species of Rubiaceae (Psychotria brasiliensis and P. nuda). This study was carried out in an Atlantic forest area on Ilha Grande, RJ, between August 1998 and July 1999. Fruit production occurred year round, with a peak of mature P. brasiliensis fruits in December 1998 and another of P. nuda in February of 1999. Lipaugus lanioides (Cotingidae), Baryphtengus ruficapillus (Momotidae) and Saltator similis (Emberizidae) made the most frequent foraging visits to fruiting P. brasiliensis, so that L. lanioides and B. ruficapillus removed the fruits with sallying maneuvers while S. similis gleaned the fruits. Lipaugus lanioides was by far the most important consumer, and potentially the main disperser of P. brasiliensis. Birds of this genus are heavy frugivores in the tropical forests and are widely assumed to be important seed dispersers. The fruits were analyzed quantitatively and qualitatively in relation to the amounts of sucrose and starch. Psychotria brasiliensis (the visited species) showed the smallest quantity of sucrose and the highest amount of starch. These findings suggest that what may influence the birds' choice of fruit is the proportion of starch in the Psychotria species studied here rather than the carbohydrate composition.
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Affiliation(s)
- E M Almeida
- Programa de Pós-graduação em Biologia, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
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Gonçalves JFDC, Barreto DCDS, Santos Junior UMD, Fernandes AV, Sampaio PDTB, Buckeridge MS. Growth, photosynthesis and stress indicators in young rosewood plants (Aniba rosaeodora Ducke) under different light intensities. ACTA ACUST UNITED AC 2005. [DOI: 10.1590/s1677-04202005000300007] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aniba rosaeodora is an Amazonian tree species that belongs to the family Lauraceae. Due to intense exploitation for extraction of essential oils (mainly linalol), A. rosaeodora is now considered an endangered species. On the other hand, there is little information about its ecophysiology which would be useful to support future forest planting programs. Hence, the effect of different light intensities on the growth and photosynthetic characteristics of young plants of A. rosaeodora was studied. Nine-month-old plants were subjected to four light treatments (T1= 10 a 250 µmol.m-2.s-1 / control; T2=500 to 800, T3=700 to 1000 and T4=1300 to 1800 µmol.m-2.s-1 / full sunlight). Allometric variables, gas exchange, contents of pigments and chlorophyll a fluorescence were analysed. As to the relative growth rates, it was found that plants of A. rosaeodora showed higher biomass accumulation when grown under intermediary irradiance conditions (T2). The best photosynthetic performance was achieved under conditions of T3. When growth was correlated with photosynthesis, it was found that plants under treatments T2 and T3 presented better responses in comparison with the lowest (T1) and highest (T4) light extremes. The highest pigment contents were obtained for plants in the shade (T1) and the lowest for those exposed to full sunlight (T4). The photochemical efficiency of photosystem II (Fv/Fm) was found that only plants in the shade treatment (T1) presented no stress from high irradiance. These findings suggest that both treatments (T1 and T4) altered the function of the A. rosaeodora plants, inhibiting photosynthesis and growth. Plants of A. rosaeodora developed photo-protection mechanisms under full sunlight. However, the species presented better photosynthetic response and biomass gain under intermediary irradiance conditions, displaying relative physiological plasticity, during the seedling phase.
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Martins MCM, Silva CO, Buckeridge MS, Vieira CCDJ. Carboidratos na bebida do café preparado sob diferentes processos. Ciênc Tecnol Aliment 2005. [DOI: 10.1590/s0101-20612005000200034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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44
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De Paula ACCFF, Sousa RV, Figueiredo-Ribeiro RCL, Buckeridge MS. Hypoglycemic activity of polysaccharide fractions containing ß-glucans from extracts of Rhynchelytrum repens (Willd.) C.E. Hubb., Poaceae. Braz J Med Biol Res 2005; 38:885-93. [PMID: 15933782 DOI: 10.1590/s0100-879x2005000600010] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Beta-glucans are soluble fibers with physiological functions, such as interference with absorption of sugars and reduction of serum lipid levels. The objective of the present study was to analyze the distribution of beta-glucans in different tissues of the African grass species Rhynchelytrum repens and also to evaluate their hypoglycemic activity. Leaf blades, sheaths, stems, and young leaves of R. repens were submitted to extraction with 4 M KOH. Analysis of the fractions revealed the presence of arabinose, glucose, xylose, and traces of rhamnose and galactose. The presence of beta-glucan in these fractions was confirmed by hydrolyzing the polymers with endo-beta-glucanase from Bacillus subtilis, followed by HPLC analysis of the characteristic oligosaccharides produced. The 4 M KOH fractions from different tissues were subjected to gel permeation chromatography on Sepharose 4B, with separation of polysaccharides with different degrees of polymerization, the highest molecular mass (above 2000 kDa) being found in young leaves. The molecular mass of the leaf blade polymers was similar (250 kDa) to that of maize coleoptile beta-glucan used for comparison. The 4 M KOH fraction injected into rats with streptozotocin-induced diabetes showed hypoglycemic activity, reducing blood sugar to normal levels for approximately 24 h. This performance was better than that obtained with pure beta-glucan from barley, which decreased blood sugar levels for about 4 h. These results suggest that the activity of beta-glucans from R. repens is responsible for the use of this plant extract as a hypoglycemic drug in folk medicine.
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Affiliation(s)
- A C C F F De Paula
- Seção Fisiologia e Bioquímica de Plantas, Instituto de Botânica, 01061-970 São Paulo, SP, Brasil
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45
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dos Santos HP, Purgatto E, Mercier H, Buckeridge MS. The control of storage xyloglucan mobilization in cotyledons of Hymenaea courbaril. Plant Physiol 2004; 135:287-99. [PMID: 15133152 PMCID: PMC429377 DOI: 10.1104/pp.104.040220] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2004] [Revised: 03/21/2004] [Accepted: 03/23/2004] [Indexed: 05/21/2023]
Abstract
Hymenaea courbaril is a leguminous tree species from the neotropical rain forests. Its cotyledons are largely enriched with a storage cell wall polysaccharide (xyloglucan). Studies of cell wall storage polymers have been focused mostly on the mechanisms of their disassembly, whereas the control of their mobilization and the relationship between their metabolism and seedling development is not well understood. Here, we show that xyloglucan mobilization is strictly controlled by the development of first leaves of the seedling, with the start of its degradation occurring after the beginning of eophyll (first leaves) expansion. During the period of storage mobilization, an increase in the levels of xyloglucan hydrolases, starch, and free sugars were observed in the cotyledons. Xyloglucan mobilization was inhibited by shoot excision, darkness, and by treatment with the auxin-transport inhibitor N-1-naphthylphthalamic acid. Analyses of endogenous indole-3-acetic acid in the cotyledons revealed that its increase in concentration is followed by the rise in xyloglucan hydrolase activities, indicating that auxin is directly related to xyloglucan mobilization. Cotyledons detached during xyloglucan mobilization and treated with 2,4-dichlorophenoxyacetic acid showed a similar mobilization rate as in attached cotyledons. This hormonal control is probably essential for the ecophysiological performance of this species in their natural environment since it is the main factor responsible for promoting synchronism between shoot growth and reserve degradation. This is likely to increase the efficiency of carbon reserves utilization by the growing seedling in the understorey light conditions of the rain forest.
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Affiliation(s)
- Henrique Pessoa dos Santos
- Seção de Fisiologia e Bioquímica de Plantas, Instituto de Botânica, CEP 01061-970, Sao Paulo, SP, Brazil
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Buckeridge MS, Vergara CE, Carpita NC. Insight into multi-site mechanisms of glycosyl transfer in (1-->4)beta-D-glycans provided by the cereal mixed-linkage (1-->3),(1-->4)beta-D-glucan synthase. Phytochemistry 2001; 57:1045-1053. [PMID: 11430977 DOI: 10.1016/s0031-9422(01)00110-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Synthases of cellulose, chitin, hyaluronan, and all other polymers containing (1-->4)beta-linked glucosyl, mannosyl and xylosyl units have overcome a substrate orientation problem in catalysis because the (1-->4)beta-linkage requires that each of these sugar units be inverted nearly 180 degrees with respect to its neighbors. We and others have proposed that this problem is solved by two modes of glycosyl transfer within a single catalytic subunit to generate disaccharide units, which, when linked processively, maintain the proper orientation without rotation or re-orientation of the synthetic machinery in 3-dimensional space. A variant of the strict (1-->4)beta-D-linkage structure is the mixed-linkage (1-->3),(1-->4)beta-D-glucan, a growth-specific cell wall polysaccharide found in grasses and cereals. beta-Glucan is composed primarily of cellotriosyl and cellotetraosyl units linked by single (1-->3)beta-D-linkages. In reactions in vitro at high substrate concentration, a polymer composed of almost entirely cellotriosyl and cellopentosyl units is made. These results support a model in which three modes of glycosyl transfer occur within the synthase complex instead of just two. The generation of odd numbered units demands that they are connected by (1-->3)beta-linkages and not (1-->4)beta-. In this short review of beta-glucan synthesis in maize, we show how such a model not only provides simple mechanisms of synthesis for all (1-->4)beta-D-glycans but also explains how the synthesis of callose, or strictly (1-->3)beta-D-glucans, occurs upon loss of the multiple modes of glycosyl transfer to a single one.
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Affiliation(s)
- M S Buckeridge
- Instituto de Botânica, Secão de Fisiologia e Bioquímica Plantas, Caixa Postal 4005, CEP-01061970, São Paulo, SP, Brazil
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Mayworm MA, Buckeridge MS, Salatino A. Monomer composition of polysaccharides of seed cell walls and the taxonomy of the Vochysiaceae. Phytochemistry 2000; 55:581-587. [PMID: 11130668 DOI: 10.1016/s0031-9422(00)00238-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The distribution of polysaccharides from the seed cell walls of 57 samples of Vochysiaceae native to Brazil were studied, comprising 16 species distributed among the genera Callisthene, Qualea, Salvertia and Vochysia. The polysaccharides were extracted with hot water, then hydrolyzed with the resulting monomers analyzed by HPLC. All samples yielded arabinose, galactose, glucose. mannose and rhamnose, the relative amounts of each monomer, however, varying from one sample to another. Arabinose was always the predominant component, which implies that it might possibly be used as a marker of the Vochysiaceae. The quantitative distribution of monosaccharides was similar between the species of Qualea and Callisthene, characterized by the predominance of arabinose and mannose, and between the species of Salvertia and Vochysia, which contained higher amounts of arabinose and galactose. Such results are consistent with affinities inferred from floral morphology, wood anatomy and molecular data. Substantial intraspecific variation was observed for some species. UPGMA analysis based on the distribution of the monosaccharides reveals two main clusters, according to the links commented above. The resultant phenogram is not coherent with the current sectional classification of the Vochysiaceae, but the differences in the monosaccharides distribution between the two clusters are strongly supported by ANOVA.
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Affiliation(s)
- M A Mayworm
- University of São Paulo, Institute of Biosciences, SP, Brazil
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Tiné MA, Cortelazzo AL, Buckeridge MS. Xyloglucan mobilisation in cotyledons of developing plantlets of Hymenaea courbaril L. (Leguminosae-Caesalpinoideae). Plant Sci 2000; 154:117-126. [PMID: 10729610 DOI: 10.1016/s0168-9452(99)00245-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Many seeds contain storage compounds that are used by the embryo/plantlet as a source of nutrients after germination. In seeds of Hymenaea courbaril, a leguminous tree, the main reserve consists of a structurally unusual xyloglucan stored in thickened walls of the cotyledon cells. The present work aimed to study H. courbaril xyloglucan metabolism during and after germination in order to compare its degrading system with the other known xyloglucan containing seeds. Polysaccharide degradation occurred after germination between 35 and 55 days after planting. The activities of alpha-xylosidase, beta-glucosidase, beta-galactosidase and XET rose during the period of xyloglucan disassembling but a low level of endo-beta-glucanase activity was detected, suggesting that this XET has high affinity for the oligosaccharides. The pH optimum of beta-galactosidase was different from the alpha-xylosidase, beta-glucosidase and XET optima suggesting that the former may be important in the control of the mobilisation process. A tentative model for xyloglucan disassembling in vivo is proposed, where beta-galactosidase allows the free oligosaccharides to bypass a transglycosylation cycle and be disassembled by the other exo-enzymes. Some ecophysiological comparisons among H. courbaril and other xyloglucan storing seeds are discussed.
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Affiliation(s)
- MA Tiné
- Seção de Fisiologia e Bioquímica de Plantas, Instituto de Botânica, Caixa Postal 4005, CEP 01061-030, São Paulo, Brazil
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Buckeridge MS, Vergara CE, Carpita NC. The mechanism of synthesis of a mixed-linkage (1-->3), (1-->4)beta-D-glucan in maize. Evidence for multiple sites of glucosyl transfer in the synthase complex. Plant Physiol 1999; 120:1105-16. [PMID: 10444094 PMCID: PMC59344 DOI: 10.1104/pp.120.4.1105] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/1999] [Accepted: 05/06/1999] [Indexed: 05/20/2023]
Abstract
We examined the mechanism of synthesis in vitro of (1-->3), (1-->4)beta-D-glucan (beta-glucan), a growth-specific cell wall polysaccharide found in grasses and cereals. beta-Glucan is composed primarily of cellotriosyl and cellotetraosyl units linked by single (1-->3)beta-linkages. The ratio of cellotriosyl and cellotetraosyl units in the native polymer is strictly controlled at between 2 and 3 in all grasses, whereas the ratios of these units in beta-glucan formed in vitro vary from 1.5 with 5 &mgr;M UDP-glucose (Glc) to over 11 with 30 mM substrate. These results support a model in which three sites of glycosyl transfer occur within the synthase complex to produce the cellobiosyl-(1-->3)-D-glucosyl units. We propose that failure to fill one of the sites results in the iterative addition of one or more cellobiosyl units to produce the longer cellodextrin units in the polymer. Variations in the UDP-Glc concentration in excised maize (Zea mays) coleoptiles did not result in wide variations in the ratios of cellotriosyl and cellotetraosyl units in beta-glucan synthesized in vivo, indicating that other factors control delivery of UDP-Glc to the synthase. In maize sucrose synthase is enriched in Golgi membranes and plasma membranes and may be involved in the control of substrate delivery to beta-glucan synthase and cellulose synthase.
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Affiliation(s)
- MS Buckeridge
- Instituto de Botanica, Secao de Fisiologia e Bioquimica Plantas, Caixa Postal 4005, CEP-01061970, Sao Paulo, SP Brazil (M.S.B.)
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