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Ruraż K, Przemieniecki SW, Błaszak M, Czarnomska SD, Ochmian I, Piwowarczyk R. Stigmas of holoparasitic Phelipanche arenaria (Orobanchaceae) - a suitable ephemeric flower habitat for development unique microbiome. BMC PLANT BIOLOGY 2023; 23:486. [PMID: 37821804 PMCID: PMC10566107 DOI: 10.1186/s12870-023-04488-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 09/26/2023] [Indexed: 10/13/2023]
Abstract
BACKGROUND Microbial communities have occasionally been observed in part of the ephemeric reproductive structure of floral stigmas, but their prevalence, phylogenetic diversity and ecological roles are understudied. This report describes the first study of bacterial and fungal communities in immature and mature stigma tissue of the endangered holoparasitic plant Phelipanche arenaria. Culture-dependent methods coupled with next-generation sequencing indicated that a small surface of the flower stigma was an unexpectedly rich and diverse microhabitat for colonization of microbial. We also compared the enzymatic activity of the bacterial communities between immature and mature stigmas samples. RESULTS Using high-throughput sequencing methods, we identified and classified 39 to over 51 OTUs per sample for bacterial OTUs represented by Pantoea agglomerans and P. ananatis, comprising 50.6%, followed by Pseudomonas, Luteibacter spp., Sphingomonas spp. with 17% of total frequency. The bacterial profile of immature stigmas of P. arenaria contained unique microorganisms (21 of the most numerous OTUs) that were not confirmed in mature stigmas. However, the enzymatic activity of bacteria in mature stigmas of P. arenaria showed more activity than observed in immature stigmas. In the fungal profile, we recorded even 80 OTUs in mature stigmas, consisting of Capnodiales 45.03% of the total abundance with 28.27% of frequency was created by Alternaria eichhorniae (10.55%), Mycosphaerella tassiana (9.69%), and Aureobasidium pullulans (8.03%). Additionally, numerous putative plant growth-promoting bacteria, fungal pathogens and pathogen-antagonistic yeasts were also detected. CONCLUSIONS Our study uncovered that P. arenaria stigmas host diverse bacterial and fungal communities. These microorganisms are well known and have been described as beneficial for biotechnological and environmental applications (e.g., production of different enzymes and antimicrobial compounds). This research provided valuable insight into the parasitic plant-microbe interactions.
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Affiliation(s)
- Karolina Ruraż
- Center for Research and Conservation of Biodiversity, Department of Environmental Biology, Institute of Biology, Jan Kochanowski University, Uniwersytecka 7, 25-406, Kielce, Poland
| | - Sebastian Wojciech Przemieniecki
- Department of Entomology, Phytopathology and Molecular Diagnostics, University of Warmia and Mazury in Olsztyn, Prawocheńskiego 17, 10-720 Olsztyn, Poland
| | - Magdalena Błaszak
- Department of Bioengineering, West Pomeranian University of Technology in Szczecin, Słowackiego 17, 71-434 Szczecin, Poland
| | - Sylwia Dagmara Czarnomska
- Museum and Institute of Zoology, Polish Academy of Sciences, Nadwiślańska 108, 80-680 Gdańsk, Poland
| | - Ireneusz Ochmian
- Department of Horticulture, West Pomeranian University of Technology in Szczecin, Słowackiego 17, 71-434 Szczecin, Poland
| | - Renata Piwowarczyk
- Center for Research and Conservation of Biodiversity, Department of Environmental Biology, Institute of Biology, Jan Kochanowski University, Uniwersytecka 7, 25-406, Kielce, Poland
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Chatzigeorgiou S, Jílková J, Korecká L, Janyšková R, Hermannová M, Šimek M, Čožíková D, Slováková M, Bílková Z, Bobek J, Černý Z, Čihák M, Velebný V. Preparation of hyaluronan oligosaccharides by a prokaryotic beta-glucuronidase: Characterization of free and immobilized forms of the enzyme. Carbohydr Polym 2023; 317:121078. [PMID: 37364952 DOI: 10.1016/j.carbpol.2023.121078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 05/26/2023] [Accepted: 05/29/2023] [Indexed: 06/28/2023]
Abstract
Popularity of hyaluronan (HA) in the cosmetics and pharmaceutical industries, led to the investigation and development of new HA-based materials, with enzymes playing a key role. Beta-D-glucuronidases catalyze the hydrolysis of a beta-D-glucuronic acid residue from the non-reducing end of various substrates. However, lack of specificity towards HA for most beta-D-glucuronidases, in addition to the high cost and low purity of those active on HA, have prevented their widespread application. In this study, we investigated a recombinant beta-glucuronidase from Bacteroides fragilis (rBfGUS). We demonstrated the rBfGUS's activity on native, modified, and derivatized HA oligosaccharides (oHAs). Using chromogenic beta-glucuronidase substrate and oHAs, we characterized the enzyme's optimal conditions and kinetic parameters. Additionally, we evaluated rBfGUS's activity towards oHAs of various sizes and types. To increase reusability and ensure the preparation of enzyme-free oHA products, rBfGUS was immobilized on two types of magnetic macroporous bead cellulose particles. Both immobilized forms of rBfGUS demonstrated suitable operational and storage stabilities, and their activity parameters were comparable to the free form. Our findings suggest that native and derivatized oHAs can be prepared using this bacterial beta-glucuronidase, and a novel biocatalyst with enhanced operational parameters has been developed with a potential for industrial use.
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Affiliation(s)
- Sofia Chatzigeorgiou
- Contipro a.s., Dolní Dobrouč 401, 56102 Dolní Dobrouč, Czech Republic; Institute of Immunology and Microbiology, 1st Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Jana Jílková
- Contipro a.s., Dolní Dobrouč 401, 56102 Dolní Dobrouč, Czech Republic; Department of Biochemistry, Faculty of Science, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic.
| | - Lucie Korecká
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentska 573, 532 10 Pardubice, Czech Republic.
| | - Radka Janyšková
- Contipro a.s., Dolní Dobrouč 401, 56102 Dolní Dobrouč, Czech Republic
| | | | - Matej Šimek
- Contipro a.s., Dolní Dobrouč 401, 56102 Dolní Dobrouč, Czech Republic
| | - Dagmar Čožíková
- Contipro a.s., Dolní Dobrouč 401, 56102 Dolní Dobrouč, Czech Republic
| | - Marcela Slováková
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentska 573, 532 10 Pardubice, Czech Republic
| | - Zuzana Bílková
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentska 573, 532 10 Pardubice, Czech Republic
| | - Jan Bobek
- Institute of Immunology and Microbiology, 1st Faculty of Medicine, Charles University, Prague, Czech Republic; Faculty of Science, Jan Evangelista Purkyně University in Ústí nad Labem, České mládeže 8, 400 96 Ústí nad Labem, Czech Republic; Faculty of Biomedical Engineering, Czech Technical University in Prague, Sítná sq. 3105, 272 01 Kladno, Czech Republic
| | - Zbyněk Černý
- Contipro a.s., Dolní Dobrouč 401, 56102 Dolní Dobrouč, Czech Republic
| | - Matouš Čihák
- Contipro a.s., Dolní Dobrouč 401, 56102 Dolní Dobrouč, Czech Republic; Institute of Immunology and Microbiology, 1st Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Vladimír Velebný
- Contipro a.s., Dolní Dobrouč 401, 56102 Dolní Dobrouč, Czech Republic
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3
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Raj S, Unsworth LD. Targeting active sites of inflammation using inherent properties of tissue-resident mast cells. Acta Biomater 2023; 159:21-37. [PMID: 36657696 DOI: 10.1016/j.actbio.2023.01.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 12/12/2022] [Accepted: 01/10/2023] [Indexed: 01/18/2023]
Abstract
Mast cells play a pivotal role in initiating and directing host's immune response. They reside in tissues that primarily interface with the external environment. Activated mast cells respond to environmental cues throughout acute and chronic inflammation through releasing immune mediators via rapid degranulation, or long-term de novo expression. Mast cell activation results in the rapid release of a variety of unique enzymes and reactive oxygen species. Furthermore, the increased density of mast cell unique receptors like mas related G protein-coupled receptor X2 also characterizes the inflamed tissues. The presence of these molecules (either released mediators or surface receptors) are particular to the sites of active inflammation, and are a result of mast cell activation. Herein, the molecular design principles for capitalizing on these novel mast cell properties is discussed with the goal of manipulating localized inflammation. STATEMENT OF SIGNIFICANCE: Mast cells are immune regulating cells that play a crucial role in both innate and adaptive immune responses. The activation of mast cells causes the release of multiple unique profiles of biomolecules, which are specific to both tissue and disease. These unique characteristics are tightly regulated and afford a localized stimulus for targeting inflammatory diseases. Herein, these important mast cell attributes are discussed in the frame of highlighting strategies for the design of bioresponsive functional materials to target regions of inflammations.
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Affiliation(s)
- Shammy Raj
- Department of Chemical and Materials Engineering, Donadeo Innovation Centre for Engineering, 9211-116 Street NW, University of Alberta, Edmonton, AB, T6G1H9, Canada
| | - Larry D Unsworth
- Department of Chemical and Materials Engineering, Donadeo Innovation Centre for Engineering, 9211-116 Street NW, University of Alberta, Edmonton, AB, T6G1H9, Canada.
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Vidhate RP, Bhide AJ, Gaikwad SM, Giri AP. A potent chitin-hydrolyzing enzyme from Myrothecium verrucaria affects growth and development of Helicoverpa armigera and plant fungal pathogens. Int J Biol Macromol 2019; 141:517-528. [PMID: 31494159 DOI: 10.1016/j.ijbiomac.2019.09.031] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 08/16/2019] [Accepted: 09/04/2019] [Indexed: 02/06/2023]
Abstract
Chitin, a crucial structural and functional component of insects and fungi, serves as a target for pest management by utilizing novel chitinases. Here, we report the biocontrol potential of recombinant Myrothecium verrucaria endochitinase (rMvEChi) against insect pest and fungal pathogens. A complete ORF of MvEChi (1185 bp) was cloned and heterologously expressed in Escherichia coli. Structure based sequence alignment of MvEChi revealed the presence of conserved domains SXGG and DXXDXDXE specific for GH-18 family, involved in substrate binding and catalysis, respectively. rMvEChi (46.6 kDa) showed optimum pH and temperature as 7.0 and 30 °C, respectively. Furthermore, rMvEChi remained stable within the pH range of 6.0 to 8.0 and up to 40 °C. rMvEChi exhibited kcat/Km values of 129.83 × 103 [(g/L)-1 s-1] towards 4MU chitotrioside. Hydrolysis of chitooligosaccharides with various degrees of polymerization (DP) using rMvEChi indicated the release of DP2 as main end product with order of reaction as DP6 > DP5 > DP4 > DP3. Bioassay of rMvEChi against Helicoverpa armigera displayed potent anti-feedant activity and induced mortality. In vitro antifungal activity against plant pathogenic fungi (Ustilago maydis and Bipolaris sorokiniana) exhibited significant inhibition of mycelium growth. These results suggest that MvEChi has significant potential in enzyme-based pest and pathogen management.
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Affiliation(s)
- Ravindra P Vidhate
- Division of Biochemical Sciences, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Amey J Bhide
- Indian Institute of Science Education and Research, Dr. Homi Bhabha Road, Pune 411008, India
| | - Sushama M Gaikwad
- Division of Biochemical Sciences, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
| | - Ashok P Giri
- Division of Biochemical Sciences, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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Wang M, Zheng F, Wang T, Lyu YM, Alteen MG, Cai ZP, Cui ZL, Liu L, Voglmeir J. Characterization of Stackebrandtia nassauensis GH 20 Beta-Hexosaminidase, a Versatile Biocatalyst for Chitobiose Degradation. Int J Mol Sci 2019; 20:ijms20051243. [PMID: 30871033 PMCID: PMC6429369 DOI: 10.3390/ijms20051243] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 02/21/2019] [Accepted: 03/04/2019] [Indexed: 12/31/2022] Open
Abstract
An unstudied β-N-acetylhexosaminidase (SnHex) from the soil bacterium Stackebrandtia nassauensis was successfully cloned and subsequently expressed as a soluble protein in Escherichia coli. Activity tests and the biochemical characterization of the purified protein revealed an optimum pH of 6.0 and a robust thermal stability at 50 °C within 24 h. The addition of urea (1 M) or sodium dodecyl sulfate (1% w/v) reduced the activity of the enzyme by 44% and 58%, respectively, whereas the addition of divalent metal ions had no effect on the enzymatic activity. PUGNAc (O-(2-acetamido-2-deoxy-D-glucopyranosylidene)amino-N-phenylcarbamate) strongly inhibited the enzyme in sub-micromolar concentrations. The β-N-acetylhexosaminidase was able to hydrolyze β1,2-linked, β1,3-linked, β1,4-linked, and β1,6-linked GlcNAc residues from the non-reducing end of various tested glycan standards, including bisecting GlcNAc from one of the tested hybrid-type N-glycan substrates. A mutational study revealed that the amino acids D306 and E307 bear the catalytically relevant side acid/base side chains. When coupled with a chitinase, the β-N-acetylhexosaminidase was able to generate GlcNAc directly from colloidal chitin, which showed the potential of this enzyme for biotechnological applications.
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Affiliation(s)
- Meng Wang
- Glycomics and Glycan Bioengineering Research Center (GGBRC), College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.
| | - Feng Zheng
- Glycomics and Glycan Bioengineering Research Center (GGBRC), College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.
| | - Ting Wang
- Glycomics and Glycan Bioengineering Research Center (GGBRC), College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.
| | - Yong-Mei Lyu
- Glycomics and Glycan Bioengineering Research Center (GGBRC), College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.
| | - Matthew G Alteen
- Department of Chemistry, Simon Fraser University, Burnaby, BC V5A 1S6, Canada.
| | - Zhi-Peng Cai
- Glycomics and Glycan Bioengineering Research Center (GGBRC), College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.
| | - Zhong-Li Cui
- College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China.
| | - Li Liu
- Glycomics and Glycan Bioengineering Research Center (GGBRC), College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.
| | - Josef Voglmeir
- Glycomics and Glycan Bioengineering Research Center (GGBRC), College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.
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Vaikuntapu PR, Mallakuntla MK, Das SN, Bhuvanachandra B, Ramakrishna B, Nadendla SR, Podile AR. Applicability of endochitinase of Flavobacterium johnsoniae with transglycosylation activity in generating long-chain chitooligosaccharides. Int J Biol Macromol 2018; 117:62-71. [DOI: 10.1016/j.ijbiomac.2018.05.129] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 05/17/2018] [Accepted: 05/18/2018] [Indexed: 01/08/2023]
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7
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Uehara A, Takahashi N, Moriyama M, Hirano T, Hakamata W, Nishio T. Synthesis of Chitin Oligosaccharides Using Dried Stenotrophomonas maltophilia Cells Containing a Transglycosylation Reaction-Catalyzing β-N-Acetylhexosaminidase as a Whole-Cell Catalyst. Appl Biochem Biotechnol 2017; 184:673-684. [DOI: 10.1007/s12010-017-2585-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Accepted: 08/16/2017] [Indexed: 10/19/2022]
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8
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Dupoiron S, Zischek C, Ligat L, Carbonne J, Boulanger A, Dugé de Bernonville T, Lautier M, Rival P, Arlat M, Jamet E, Lauber E, Albenne C. The N-Glycan cluster from Xanthomonas campestris pv. campestris: a toolbox for sequential plant N-glycan processing. J Biol Chem 2015; 290:6022-36. [PMID: 25586188 DOI: 10.1074/jbc.m114.624593] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
N-Glycans are widely distributed in living organisms but represent only a small fraction of the carbohydrates found in plants. This probably explains why they have not previously been considered as substrates exploited by phytopathogenic bacteria during plant infection. Xanthomonas campestris pv. campestris, the causal agent of black rot disease of Brassica plants, possesses a specific system for GlcNAc utilization expressed during host plant infection. This system encompasses a cluster of eight genes (nixE to nixL) encoding glycoside hydrolases (GHs). In this paper, we have characterized the enzymatic activities of these GHs and demonstrated their involvement in sequential degradation of a plant N-glycan using a N-glycopeptide containing two GlcNAcs, three mannoses, one fucose, and one xylose (N2M3FX) as a substrate. The removal of the α-1,3-mannose by the α-mannosidase NixK (GH92) is a prerequisite for the subsequent action of the β-xylosidase NixI (GH3), which is involved in the cleavage of the β-1,2-xylose, followed by the α-mannosidase NixJ (GH125), which removes the α-1,6-mannose. These data, combined to the subcellular localization of the enzymes, allowed us to propose a model of N-glycopeptide processing by X. campestris pv. campestris. This study constitutes the first evidence suggesting N-glycan degradation by a plant pathogen, a feature shared with human pathogenic bacteria. Plant N-glycans should therefore be included in the repertoire of molecules putatively metabolized by phytopathogenic bacteria during their life cycle.
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Affiliation(s)
- Stéphanie Dupoiron
- From the Université de Toulouse and CNRS, Laboratoire de Recherches en Sciences Végétales, UMR 5546, BP 42617, F-31326 Castanet-Tolosan, France
| | - Claudine Zischek
- INRA and CNRS, Laboratoire des Interactions Plantes-Microorganismes, UMR 2594, F-31326 Castanet-Tolosan, France, and
| | - Laetitia Ligat
- From the Université de Toulouse and CNRS, Laboratoire de Recherches en Sciences Végétales, UMR 5546, BP 42617, F-31326 Castanet-Tolosan, France
| | - Julien Carbonne
- From the Université de Toulouse and CNRS, Laboratoire de Recherches en Sciences Végétales, UMR 5546, BP 42617, F-31326 Castanet-Tolosan, France
| | - Alice Boulanger
- INRA and CNRS, Laboratoire des Interactions Plantes-Microorganismes, UMR 2594, F-31326 Castanet-Tolosan, France, and
| | - Thomas Dugé de Bernonville
- INRA and CNRS, Laboratoire des Interactions Plantes-Microorganismes, UMR 2594, F-31326 Castanet-Tolosan, France, and
| | - Martine Lautier
- INRA and CNRS, Laboratoire des Interactions Plantes-Microorganismes, UMR 2594, F-31326 Castanet-Tolosan, France, and the Université de Toulouse, UPS, F-31062 Toulouse, France
| | - Pauline Rival
- From the Université de Toulouse and CNRS, Laboratoire de Recherches en Sciences Végétales, UMR 5546, BP 42617, F-31326 Castanet-Tolosan, France, INRA and CNRS, Laboratoire des Interactions Plantes-Microorganismes, UMR 2594, F-31326 Castanet-Tolosan, France, and
| | - Matthieu Arlat
- INRA and CNRS, Laboratoire des Interactions Plantes-Microorganismes, UMR 2594, F-31326 Castanet-Tolosan, France, and the Université de Toulouse, UPS, F-31062 Toulouse, France
| | - Elisabeth Jamet
- From the Université de Toulouse and CNRS, Laboratoire de Recherches en Sciences Végétales, UMR 5546, BP 42617, F-31326 Castanet-Tolosan, France
| | - Emmanuelle Lauber
- INRA and CNRS, Laboratoire des Interactions Plantes-Microorganismes, UMR 2594, F-31326 Castanet-Tolosan, France, and
| | - Cécile Albenne
- From the Université de Toulouse and CNRS, Laboratoire de Recherches en Sciences Végétales, UMR 5546, BP 42617, F-31326 Castanet-Tolosan, France
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Ryšlavá H, Valenta R, Hýsková V, Křížek T, Liberda J, Coufal P. Purification and enzymatic characterization of tobacco leaf β-N-acetylhexosaminidase. Biochimie 2014; 107 Pt B:263-9. [PMID: 25242193 DOI: 10.1016/j.biochi.2014.09.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Accepted: 09/05/2014] [Indexed: 01/17/2023]
Abstract
The kinetic properties of β-N-acetylhexosaminidase purified from tobacco (Nicotiana tabacum L.) leaves have been investigated. In addition to chromogenic pNP derivates, N,N'-diacetylchitobiose and N,N',N″-triacetylchitotriose were also used as substrates of β-N-acetylhexosaminidase. The highest reaction rate and the affinity for the substrate were observed for pNP-GlcNAc; however, an excess of this substrate inhibits the reaction. The reaction rate with pNP-GalNAc as the substrate was found to be about 85% of that obtained with pNP-GlcNAc. The hydrolysis of acetylated chitooligomers by β-N-acetylhexosaminidase followed by separation and quantification using capillary electrophoresis was slower compared to pNP-GlcNAc. The pH optimum of β-N-acetylhexosaminidase for individual substrates was found at 4.3-5.0 and the temperature optimum was 50-55 °C. Gel permeation chromatography and red native electrophoresis determined the relative molecular weight as 280 000 and the isoelectric point as 5.3. The inhibition of β-N-acetylhexosaminidase by monosaccharides GlcN, GalN, GlcNAc, GalNAc in combination with substrates pNP-GlcNAc and pNP-GalNAc was studied and the type of inhibition and the inhibition constants were determined.
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Affiliation(s)
- Helena Ryšlavá
- Department of Biochemistry, Faculty of Science, Charles University, Hlavova 2030, Prague 2 128 40, Czech Republic.
| | - Robert Valenta
- Department of Biochemistry, Faculty of Science, Charles University, Hlavova 2030, Prague 2 128 40, Czech Republic
| | - Veronika Hýsková
- Department of Biochemistry, Faculty of Science, Charles University, Hlavova 2030, Prague 2 128 40, Czech Republic
| | - Tomáš Křížek
- Department of Analytical Chemistry, Faculty of Science, Charles University, Hlavova 2030, Prague 2 128 40, Czech Republic
| | - Jiří Liberda
- Department of Biochemistry, Faculty of Science, Charles University, Hlavova 2030, Prague 2 128 40, Czech Republic
| | - Pavel Coufal
- Department of Analytical Chemistry, Faculty of Science, Charles University, Hlavova 2030, Prague 2 128 40, Czech Republic
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Jung WJ, Park RD. Bioproduction of chitooligosaccharides: present and perspectives. Mar Drugs 2014; 12:5328-56. [PMID: 25353253 PMCID: PMC4245534 DOI: 10.3390/md12115328] [Citation(s) in RCA: 150] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Revised: 10/20/2014] [Accepted: 10/21/2014] [Indexed: 01/28/2023] Open
Abstract
Chitin and chitosan oligosaccharides (COS) have been traditionally obtained by chemical digestion with strong acids. In light of the difficulties associated with these traditional production processes, environmentally compatible and reproducible production alternatives are desirable. Unlike chemical digestion, biodegradation of chitin and chitosan by enzymes or microorganisms does not require the use of toxic chemicals or excessive amounts of wastewater. Enzyme preparations with chitinase, chitosanase, and lysozymeare primarily used to hydrolyze chitin and chitosan. Commercial preparations of cellulase, protease, lipase, and pepsin provide another opportunity for oligosaccharide production. In addition to their hydrolytic activities, the transglycosylation activity of chitinolytic enzymes might be exploited for the synthesis of desired chitin oligomers and their derivatives. Chitin deacetylase is also potentially useful for the preparation of oligosaccharides. Recently, direct production of oligosaccharides from chitin and crab shells by a combination of mechanochemical grinding and enzymatic hydrolysis has been reported. Together with these, other emerging technologies such as direct degradation of chitin from crustacean shells and microbial cell walls, enzymatic synthesis of COS from small building blocks, and protein engineering technology for chitin-related enzymes have been discussed as the most significant challenge for industrial application.
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Affiliation(s)
- Woo-Jin Jung
- Division of Applied Bioscience & Biotechnology, Institute of Environment-Friendly Agriculture (IEFA), College of Agricultural and Life Sciences, Chonnam National University, Gwangju 500-757, Korea.
| | - Ro-Dong Park
- Division of Applied Bioscience & Biotechnology, Institute of Environment-Friendly Agriculture (IEFA), College of Agricultural and Life Sciences, Chonnam National University, Gwangju 500-757, Korea.
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Abstract
Chitin and chitosan oligosaccharides (COS) have been traditionally obtained by chemical digestion with strong acids. In light of the difficulties associated with these traditional production processes, environmentally compatible and reproducible production alternatives are desirable. Unlike chemical digestion, biodegradation of chitin and chitosan by enzymes or microorganisms does not require the use of toxic chemicals or excessive amounts of wastewater. Enzyme preparations with chitinase, chitosanase, and lysozymeare primarily used to hydrolyze chitin and chitosan. Commercial preparations of cellulase, protease, lipase, and pepsin provide another opportunity for oligosaccharide production. In addition to their hydrolytic activities, the transglycosylation activity of chitinolytic enzymes might be exploited for the synthesis of desired chitin oligomers and their derivatives. Chitin deacetylase is also potentially useful for the preparation of oligosaccharides. Recently, direct production of oligosaccharides from chitin and crab shells by a combination of mechanochemical grinding and enzymatic hydrolysis has been reported. Together with these, other emerging technologies such as direct degradation of chitin from crustacean shells and microbial cell walls, enzymatic synthesis of COS from small building blocks, and protein engineering technology for chitin-related enzymes have been discussed as the most significant challenge for industrial application.
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Affiliation(s)
- Woo-Jin Jung
- Division of Applied Bioscience & Biotechnology, Institute of Environment-Friendly Agriculture (IEFA), College of Agricultural and Life Sciences, Chonnam National University, Gwangju 500-757, Korea.
| | - Ro-Dong Park
- Division of Applied Bioscience & Biotechnology, Institute of Environment-Friendly Agriculture (IEFA), College of Agricultural and Life Sciences, Chonnam National University, Gwangju 500-757, Korea.
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The plant pathogen Xanthomonas campestris pv. campestris exploits N-acetylglucosamine during infection. mBio 2014; 5:e01527-14. [PMID: 25205095 PMCID: PMC4173781 DOI: 10.1128/mbio.01527-14] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
N-Acetylglucosamine (GlcNAc), the main component of chitin and a major constituent of bacterial peptidoglycan, is present only in trace amounts in plants, in contrast to the huge amount of various sugars that compose the polysaccharides of the plant cell wall. Thus, GlcNAc has not previously been considered a substrate exploited by phytopathogenic bacteria during plant infection. Xanthomonas campestris pv. campestris, the causal agent of black rot disease of Brassica plants, expresses a carbohydrate utilization system devoted to GlcNAc exploitation. In addition to genes involved in GlcNAc catabolism, this system codes for four TonB-dependent outer membrane transporters (TBDTs) and eight glycoside hydrolases. Expression of all these genes is under the control of GlcNAc. In vitro experiments showed that X. campestris pv. campestris exploits chitooligosaccharides, and there is indirect evidence that during the early stationary phase, X. campestris pv. campestris recycles bacterium-derived peptidoglycan/muropeptides. Results obtained also suggest that during plant infection and during growth in cabbage xylem sap, X. campestris pv. campestris encounters and metabolizes plant-derived GlcNAc-containing molecules. Specific TBDTs seem to be preferentially involved in the consumption of all these plant-, fungus- and bacterium-derived GlcNAc-containing molecules. This is the first evidence of GlcNAc consumption during infection by a phytopathogenic bacterium. Interestingly, N-glycans from plant N-glycosylated proteins are proposed to be substrates for glycoside hydrolases belonging to the X. campestris pv. campestris GlcNAc exploitation system. This observation extends the range of sources of GlcNAc metabolized by phytopathogenic bacteria during their life cycle. Despite the central role of N-acetylglucosamine (GlcNAc) in nature, there is no evidence that phytopathogenic bacteria metabolize this compound during plant infection. Results obtained here suggest that Xanthomonas campestris pv. campestris, the causal agent of black rot disease on Brassica, encounters and metabolizes GlcNAc in planta and in vitro. Active and specific outer membrane transporters belonging to the TonB-dependent transporters family are proposed to import GlcNAc-containing complex molecules from the host, from the bacterium, and/or from the environment, and bacterial glycoside hydrolases induced by GlcNAc participate in their degradation. Our results extend the range of sources of GlcNAc metabolized by this phytopathogenic bacterium during its life cycle to include chitooligosaccharides that could originate from fungi or insects present in the plant environment, muropeptides leached during peptidoglycan recycling and bacterial lysis, and N-glycans from plant N-glycosylated proteins present in the plant cell wall as well as in xylem sap.
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Thi NN, Offen WA, Shareck F, Davies GJ, Doucet N. Structure and Activity of the Streptomyces coelicolor A3(2) β-N-Acetylhexosaminidase Provides Further Insight into GH20 Family Catalysis and Inhibition. Biochemistry 2014; 53:1789-800. [DOI: 10.1021/bi401697j] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Nhung Nguyen Thi
- INRS-Institut
Armand-Frappier, Université du Québec, 531 Boul. des Prairies, Laval, Québec H7V 1B7, Canada
- PROTEO,
the Québec Network for Research on Protein Function, Structure,
and Engineering, 1045
Avenue de la Médecine, Université Laval, Québec, Québec G1V 0A6, Canada
- GRASP,
the Groupe de Recherche Axé sur la Structure des Protéines,
3649 Promenade Sir William Osler, McGill University, Montréal, Québec H3G 0B1, Canada
- Military
Institute of Science and Technology, 17 Hoang Sam, Hanoi, Vietnam
- Vietnam
Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, Vietnam
| | - Wendy A. Offen
- Structural
Biology Laboratory, Department of Chemistry, University of York, York YO10 5DD, United Kingdom
| | - François Shareck
- INRS-Institut
Armand-Frappier, Université du Québec, 531 Boul. des Prairies, Laval, Québec H7V 1B7, Canada
| | - Gideon J. Davies
- Structural
Biology Laboratory, Department of Chemistry, University of York, York YO10 5DD, United Kingdom
| | - Nicolas Doucet
- INRS-Institut
Armand-Frappier, Université du Québec, 531 Boul. des Prairies, Laval, Québec H7V 1B7, Canada
- PROTEO,
the Québec Network for Research on Protein Function, Structure,
and Engineering, 1045
Avenue de la Médecine, Université Laval, Québec, Québec G1V 0A6, Canada
- GRASP,
the Groupe de Recherche Axé sur la Structure des Protéines,
3649 Promenade Sir William Osler, McGill University, Montréal, Québec H3G 0B1, Canada
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Valenzuela SV, Diaz P, Pastor FIJ. Xyn11E from Paenibacillus barcinonensis BP-23: a LppX-chaperone-dependent xylanase with potential for upgrading paper pulps. Appl Microbiol Biotechnol 2014; 98:5949-57. [DOI: 10.1007/s00253-014-5565-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Revised: 12/20/2013] [Accepted: 01/21/2014] [Indexed: 12/21/2022]
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