1
|
Hossain MM, Rajia S, Ohkawa M, Yoshimoto S, Fujii Y, Kawsar SMA, Ozeki Y, Hasan I. Physicochemical properties and antimicrobial activities of MytiLec-1, a member from the mytilectin family of mussels. Int J Biol Macromol 2023; 253:127628. [PMID: 37884254 DOI: 10.1016/j.ijbiomac.2023.127628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 10/20/2023] [Accepted: 10/21/2023] [Indexed: 10/28/2023]
Abstract
MytiLec-1, the recombinant form of a mussel lectin from Mytillus galloprovincialis, was purified by affinity chromatography and showed the maximum hemagglutination activity at a temperature range of 10 °C to 40 °C and at pH 7.0 to 9.0. Denaturants like urea and acidic-guanidine inhibited its hemagglutination activity significantly. MytiLec-1 was found to be metal-independent though Ca2+ slightly increased the activity of chelated MytiLec-1. The lectin suppressed 65 % growth of Pseudomonas aeruginosa (ATCC 47085) at 200 μg/ml and reduced the formation of biofilm (15 % at 200 μg/ml). Comparing to Shigella sonnei (ATCC 29930), Shigella boydii (ATCC 231903) and Shigella dysenteriae (ATCC 238135), Bacillus cereus (ATCC 14579) was slightly more sensitive to MytiLec-1. At a concentration of 200 μg/disc and 100 μg/ml, MytiLec-1 prevented the growth of Aspergillus niger and agglutinated the spores of Aspergillus niger and Trichoderma reesei, respectively. Amino acid sequences, physicochemical properties and antimicrobial activities of MytiLec-1 were compared with three other lectins (CGL, MTL and MCL from Crenomytilus grayanus, Mytilus trossulas and Mytilus californianus, respectively) from the mytilectin family of bivalve mollusks. It reconfirms the function of these lectins to recognize pathogens and perform important roles in innate immune response of mussels.
Collapse
Affiliation(s)
- Md Mikail Hossain
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi 6205, Bangladesh
| | - Sultana Rajia
- Center for Interdisciplinary Research, Varendra University, Rajshahi 6204, Bangladesh; Graduate School of Nanobiosciences, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan
| | - Mayuka Ohkawa
- Graduate School of Nanobiosciences, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan
| | - Suzuna Yoshimoto
- Graduate School of Nanobiosciences, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan
| | - Yuki Fujii
- Graduate School of Pharmaceutical Sciences, Nagasaki International University, 2825-7, Huis Ten Bosch, Sasebo, Nagasaki 859-3298, Japan
| | - Sarkar M A Kawsar
- Department of Chemistry, University of Chittagong, Chittagong 4331, Bangladesh
| | - Yasuhiro Ozeki
- Graduate School of Nanobiosciences, Yokohama City University, 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan
| | - Imtiaj Hasan
- Department of Biochemistry and Molecular Biology, University of Rajshahi, Rajshahi 6205, Bangladesh.
| |
Collapse
|
2
|
Expression of Saccharomyces cerevisiae RER2 Gene Encoding Cis-Prenyltransferase in Trichoderma atroviride Increases the Activity of Secretory Hydrolases and Enhances Antimicrobial Features. J Fungi (Basel) 2022; 9:jof9010038. [PMID: 36675859 PMCID: PMC9860738 DOI: 10.3390/jof9010038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/22/2022] [Accepted: 12/23/2022] [Indexed: 12/28/2022] Open
Abstract
Some Trichoderma spp. exhibit natural abilities to reduce fungal diseases of plants through their mycoparasitic and antagonistic properties. In this study, we created new Trichoderma atroviride strains with elevated antifungal activity. This effect was achieved by improving the activity of cis-prenyltransferase, the main enzyme in dolichol synthesis, by expressing the RER2 gene from Saccharomyces cerevisiae. Since dolichyl phosphate is the carrier of carbohydrate residues during protein glycosylation, activation of its synthesis enhanced the activities of dolichyl-dependent enzymes, DPM synthase and N-acetylglucosamine transferase, as well as stimulated glycosylation of secretory proteins. Cellulases secreted by the transformants revealed significantly higher levels or activities compared to the control strain. Consequently, the resulting Trichoderma strains were more effective against the plant pathogens Pythium ultimum.
Collapse
|
3
|
Galvão DFA, Pessoni RAB, Elsztein C, Moreira KA, Morais MA, de Cássia Leone Figueiredo-Ribeiro R, Gaspar M, Morais MMC, Fialho MB, Braga MR. A comparative study between Fusarium solani and Neocosmospora vasinfecta revealed differential profile of fructooligosaccharide production. Folia Microbiol (Praha) 2022; 67:873-889. [PMID: 35729302 DOI: 10.1007/s12223-022-00983-4] [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: 01/27/2022] [Accepted: 06/09/2022] [Indexed: 11/30/2022]
Abstract
Fructooligosaccharides (FOS) are fructose-based oligosaccharides employed as additives to improve the food's nutritional and technological properties. The rhizosphere of plants that accumulate fructopolysaccharides as inulin has been revealed as a source of filamentous fungi. These fungi can produce FOS either by inulin hydrolysis or by biosynthesis from sucrose, including unusual FOS with enhanced prebiotic properties. Here, we investigated the ability of Fusarium solani and Neocosmospora vasinfecta to produce FOS from different carbon sources. Fusarium solani and N. vasinfecta grew preferentially in inulin instead of sucrose, resulting in the FOS production as the result of endo-inulinase activities. N. vasinfecta was also able to produce the FOS 1-kestose and 6-kestose from sucrose, indicating transfructosylating activity, absent in F. solani. Moreover, the results showed how these carbon sources affected fungal cell wall composition and the expression of genes encoding for β-1,3-glucan synthase and chitin synthase. Inulin and fructose promoted changes in fungal macroscopic characteristics partially explained by alterations in cell wall composition. However, these alterations were not directly correlated with the expression of genes related to cell wall synthesis. Altogether, the results pointed to the potential of both F. solani and N. vasinfecta to produce FOS at specific profiles.
Collapse
Affiliation(s)
- Daiane F A Galvão
- Unidade Acadêmica de Garanhuns, Universidade Federal Rural de Pernambuco, R. Bom Pastor, s/n, 55 292-270, Garanhuns, PA, Brazil.,Programa de Pós-Graduação em Biologia Celular e Estrutural, Universidade Estadual de Campinas, Campinas, SP, Brazil
| | - Rosemeire A B Pessoni
- Faculdade da Saúde, Universidade Metodista de São Paulo, Rua Alfeu Tavares, 149, Sao Bernardo do Campo, SP, 09641-000, Brazil
| | - Carolina Elsztein
- Departamento de Genética, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego 1235, 50670-901, Recife PE, Brazil
| | - Keila A Moreira
- Unidade Acadêmica de Garanhuns, Universidade Federal Rural de Pernambuco, R. Bom Pastor, s/n, 55 292-270, Garanhuns, PA, Brazil
| | - Marcos A Morais
- Departamento de Genética, Universidade Federal de Pernambuco, Av. Prof. Moraes Rego 1235, 50670-901, Recife PE, Brazil
| | - Rita de Cássia Leone Figueiredo-Ribeiro
- Núcleo de Conservação da Biodiversidade, Instituto de Pesquisas Ambientais (former Instituto de Botânica), Av. Miguel Stéfano, 3687, São Paulo, SP, 04301-902, Brazil
| | - Marília Gaspar
- Núcleo de Conservação da Biodiversidade, Instituto de Pesquisas Ambientais (former Instituto de Botânica), Av. Miguel Stéfano, 3687, São Paulo, SP, 04301-902, Brazil
| | - Marcia M C Morais
- Instituto de Ciências Biológicas, Universidade de Pernambuco, R. Arnóbio Marques, 310 50100-130, Recife, PA, Brazil
| | - Mauricio B Fialho
- Universidade Federal do ABC, Avenida dos Estados, Santo André, SP, 5001, 09210-580, Brazil.
| | - Marcia R Braga
- Núcleo de Conservação da Biodiversidade, Instituto de Pesquisas Ambientais (former Instituto de Botânica), Av. Miguel Stéfano, 3687, São Paulo, SP, 04301-902, Brazil.
| |
Collapse
|
4
|
Poosapati S, Ravulapalli PD, Viswanathaswamy DK, Kannan M. Proteomics of Two Thermotolerant Isolates of Trichoderma under High-Temperature Stress. J Fungi (Basel) 2021; 7:1002. [PMID: 34946985 PMCID: PMC8704589 DOI: 10.3390/jof7121002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 11/22/2021] [Accepted: 11/22/2021] [Indexed: 11/22/2022] Open
Abstract
Several species of the soil borne fungus of the genus Trichoderma are known to be versatile, opportunistic plant symbionts and are the most successful biocontrol agents used in today's agriculture. To be successful in field conditions, the fungus must endure varying climatic conditions. Studies have indicated that a high atmospheric temperature coupled with low humidity is a major factor in the inconsistent performance of Trichoderma under field conditions. Understanding the molecular modulations associated with Trichoderma that persist and deliver under abiotic stress conditions will aid in exploiting the value of these organisms for such uses. In this study, a comparative proteomic analysis, using two-dimensional gel electrophoresis (2DE) and matrix-assisted laser desorption/time-of-flight (MALDI-TOF-TOF) mass spectrometry, was used to identify proteins associated with thermotolerance in two thermotolerant isolates of Trichoderma: T. longibrachiatum 673, TaDOR673 and T. asperellum 7316, TaDOR7316; with 32 differentially expressed proteins being identified. Sequence homology and conserved domains were used to identify these proteins and to assign a probable function to them. The thermotolerant isolate, TaDOR673, seemed to employ the stress signaling MAPK pathways and heat shock response pathways to combat the stress condition, whereas the moderately tolerant isolate, TaDOR7316, seemed to adapt to high-temperature conditions by reducing the accumulation of misfolded proteins through an unfolded protein response pathway and autophagy. In addition, there were unique, as well as common, proteins that were differentially expressed in the two isolates studied.
Collapse
Affiliation(s)
- Sowmya Poosapati
- Department of Plant Pathology, ICAR-Indian Institute of Oilseeds Research, Rajendranagar, Hyderabad 500030, India;
- Section of Cell and Developmental Biology, University of California San Diego, La Jolla, CA 92093, USA
| | - Prasad Durga Ravulapalli
- Department of Plant Pathology, ICAR-Indian Institute of Oilseeds Research, Rajendranagar, Hyderabad 500030, India;
| | | | - Monica Kannan
- Proteomics Facility, School of Life Sciences, University of Hyderabad, Gachibowli, Hyderabad 500046, India;
| |
Collapse
|
5
|
Piłsyk S, Perlinska-Lenart U, Janik A, Gryz E, Ajchler-Adamska M, Kruszewska JS. Yil102c-A is a Functional Homologue of the DPMII Subunit of Dolichyl Phosphate Mannose Synthase in Saccharomyces cerevisiae. Int J Mol Sci 2020; 21:E8938. [PMID: 33255655 PMCID: PMC7728079 DOI: 10.3390/ijms21238938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 11/20/2020] [Accepted: 11/23/2020] [Indexed: 11/30/2022] Open
Abstract
In a wide range of organisms, dolichyl phosphate mannose (DPM) synthase is a complex of tree proteins Dpm1, Dpm2, and Dpm3. However, in the yeast Saccharomyces cerevisiae, it is believed to be a single Dpm1 protein. The function of Dpm3 is performed in S. cerevisiae by the C-terminal transmembrane domain of the catalytic subunit Dpm1. Until present, the regulatory Dpm2 protein has not been found in S. cerevisiae. In this study, we show that, in fact, the Yil102c-A protein interacts directly with Dpm1 in S. cerevisiae and influences its DPM synthase activity. Deletion of the YIL102c-A gene is lethal, and this phenotype is reversed by the dpm2 gene from Trichoderma reesei. Functional analysis of Yil102c-A revealed that it also interacts with glucosylphosphatidylinositol-N-acetylglucosaminyl transferase (GPI-GnT), similar to DPM2 in human cells. Taken together, these results show that Yil102c-A is a functional homolog of DPMII from T. reesei and DPM2 from humans.
Collapse
Affiliation(s)
| | | | | | | | | | - Joanna S. Kruszewska
- Institute of Biochemistry and Biophysics Polish Academy of Sciences, 02-106 Warsaw, Poland; (S.P.); (U.P.-L.); (A.J.); (E.G.); (M.A.-A.)
| |
Collapse
|
6
|
Nikkilä I, Waldén M, Maina NH, Tenkanen M, Mikkonen KS. Fungal Cell Biomass From Enzyme Industry as a Sustainable Source of Hydrocolloids. FRONTIERS IN CHEMICAL ENGINEERING 2020. [DOI: 10.3389/fceng.2020.574072] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
7
|
Gryz E, Perlińska-Lenart U, Gawarecka K, Jozwiak A, Piłsyk S, Lipko A, Jemiola-Rzeminska M, Bernat P, Muszewska A, Steczkiewicz K, Ginalski K, Długoński J, Strzalka K, Swiezewska E, Kruszewska JS. Poly-Saturated Dolichols from Filamentous Fungi Modulate Activity of Dolichol-Dependent Glycosyltransferase and Physical Properties of Membranes. Int J Mol Sci 2019; 20:ijms20123043. [PMID: 31234450 PMCID: PMC6628320 DOI: 10.3390/ijms20123043] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 06/19/2019] [Accepted: 06/21/2019] [Indexed: 11/17/2022] Open
Abstract
Mono-saturated polyprenols (dolichols) have been found in almost all Eukaryotic cells, however, dolichols containing additional saturated bonds at the ω-end, have been identified in A. fumigatus and A. niger. Here we confirm using an LC-ESI-QTOF-MS analysis, that poly-saturated dolichols are abundant in other filamentous fungi, Trichoderma reesei, A. nidulans and Neurospora crassa, while the yeast Saccharomyces cerevisiae only contains the typical mono-saturated dolichols. We also show, using differential scanning calorimetry (DSC) and fluorescence anisotropy of 1,6-diphenyl-l,3,5-hexatriene (DPH) that the structure of dolichols modulates the properties of membranes and affects the functioning of dolichyl diphosphate mannose synthase (DPMS). The activity of this enzyme from T. reesei and S. cerevisiae was strongly affected by the structure of dolichols. Additionally, the structure of phosphatidylcholine (PC) and phosphatidylethanolamine (PE) model membranes was more strongly disturbed by the poly-saturated dolichols from Trichoderma than by the mono-saturated dolichols from yeast. By comparing the lipidome of filamentous fungi with that from S. cerevisiae, we revealed significant differences in the PC/PE ratio and fatty acids composition. Filamentous fungi differ from S. cerevisiae in the lipid composition of their membranes and the structure of dolichols. The structure of dolichols profoundly affects the functioning of dolichol-dependent enzyme, DPMS.
Collapse
Affiliation(s)
- Elżbieta Gryz
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, 02-106 Warsaw, Poland.
| | - Urszula Perlińska-Lenart
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, 02-106 Warsaw, Poland.
| | - Katarzyna Gawarecka
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, 02-106 Warsaw, Poland.
| | - Adam Jozwiak
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, 02-106 Warsaw, Poland.
| | - Sebastian Piłsyk
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, 02-106 Warsaw, Poland.
| | - Agata Lipko
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, 02-106 Warsaw, Poland.
| | - Malgorzata Jemiola-Rzeminska
- Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Krakow, Poland.
- Malopolska Centre of Biotechnology, Jagiellonian University, Gronostajowa 7A, 30-387 Krakow, Poland.
| | - Przemysław Bernat
- Department of Industrial Microbiology and Biotechnology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland.
| | - Anna Muszewska
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, 02-106 Warsaw, Poland.
| | - Kamil Steczkiewicz
- Laboratory of Bioinformatics and Systems Biology, CeNT, University of Warsaw, Zwirki i Wigury 93, 02-089 Warsaw, Poland.
| | - Krzysztof Ginalski
- Laboratory of Bioinformatics and Systems Biology, CeNT, University of Warsaw, Zwirki i Wigury 93, 02-089 Warsaw, Poland.
| | - Jerzy Długoński
- Department of Industrial Microbiology and Biotechnology, Faculty of Biology and Environmental Protection, University of Lodz, Banacha 12/16, 90-237 Lodz, Poland.
| | - Kazimierz Strzalka
- Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Krakow, Poland.
- Malopolska Centre of Biotechnology, Jagiellonian University, Gronostajowa 7A, 30-387 Krakow, Poland.
| | - Ewa Swiezewska
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, 02-106 Warsaw, Poland.
| | - Joanna S Kruszewska
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, 02-106 Warsaw, Poland.
| |
Collapse
|
8
|
Tang H, Wang S, Wang J, Song M, Xu M, Zhang M, Shen Y, Hou J, Bao X. N-hypermannose glycosylation disruption enhances recombinant protein production by regulating secretory pathway and cell wall integrity in Saccharomyces cerevisiae. Sci Rep 2016; 6:25654. [PMID: 27156860 PMCID: PMC4860636 DOI: 10.1038/srep25654] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Accepted: 04/14/2016] [Indexed: 12/30/2022] Open
Abstract
Saccharomyces cerevisiae is a robust host for heterologous protein expression. The efficient expression of cellulases in S. cerevisiae is important for the consolidated bioprocess that directly converts lignocellulose into valuable products. However, heterologous proteins are often N-hyperglycosylated in S. cerevisiae, which may affect protein activity. In this study, the expression of three heterologous proteins, β-glucosidase, endoglucanase and cellobiohydrolase, was found to be N-hyperglycosylated in S. cerevisiae. To block the formation of hypermannose glycan, these proteins were expressed in strains with deletions in key Golgi mannosyltransferases (Och1p, Mnn9p and Mnn1p), respectively. Their extracellular activities improved markedly in the OCH1 and MNN9 deletion strains. Interestingly, truncation of the N-hypermannose glycan did not increase the specific activity of these proteins, but improved the secretion yield. Further analysis showed OCH1 and MNN9 deletion up-regulated genes in the secretory pathway, such as protein folding and vesicular trafficking, but did not induce the unfolded protein response. The cell wall integrity was also affected by OCH1 and MNN9 deletion, which contributed to the release of secretory protein extracellularly. This study demonstrated that mannosyltransferases disruption improved protein secretion through up-regulating secretory pathway and affecting cell wall integrity and provided new insights into glycosylation engineering for protein secretion.
Collapse
Affiliation(s)
- Hongting Tang
- State Key Laboratory of Microbial Technology, Shandong University, Jinan, 250100, China
| | - Shenghuan Wang
- State Key Laboratory of Microbial Technology, Shandong University, Jinan, 250100, China
| | - Jiajing Wang
- State Key Laboratory of Microbial Technology, Shandong University, Jinan, 250100, China
| | - Meihui Song
- State Key Laboratory of Microbial Technology, Shandong University, Jinan, 250100, China
| | - Mengyang Xu
- State Key Laboratory of Microbial Technology, Shandong University, Jinan, 250100, China
| | - Mengying Zhang
- State Key Laboratory of Microbial Technology, Shandong University, Jinan, 250100, China
| | - Yu Shen
- State Key Laboratory of Microbial Technology, Shandong University, Jinan, 250100, China
| | - Jin Hou
- State Key Laboratory of Microbial Technology, Shandong University, Jinan, 250100, China
| | - Xiaoming Bao
- State Key Laboratory of Microbial Technology, Shandong University, Jinan, 250100, China
| |
Collapse
|
9
|
Su X, Schmitz G, Zhang M, Mackie RI, Cann IKO. Heterologous gene expression in filamentous fungi. ADVANCES IN APPLIED MICROBIOLOGY 2016; 81:1-61. [PMID: 22958526 DOI: 10.1016/b978-0-12-394382-8.00001-0] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Filamentous fungi are critical to production of many commercial enzymes and organic compounds. Fungal-based systems have several advantages over bacterial-based systems for protein production because high-level secretion of enzymes is a common trait of their decomposer lifestyle. Furthermore, in the large-scale production of recombinant proteins of eukaryotic origin, the filamentous fungi become the vehicle of choice due to critical processes shared in gene expression with other eukaryotic organisms. The complexity and relative dearth of understanding of the physiology of filamentous fungi, compared to bacteria, have hindered rapid development of these organisms as highly efficient factories for the production of heterologous proteins. In this review, we highlight several of the known benefits and challenges in using filamentous fungi (particularly Aspergillus spp., Trichoderma reesei, and Neurospora crassa) for the production of proteins, especially heterologous, nonfungal enzymes. We review various techniques commonly employed in recombinant protein production in the filamentous fungi, including transformation methods, selection of gene regulatory elements such as promoters, protein secretion factors such as the signal peptide, and optimization of coding sequence. We provide insights into current models of host genomic defenses such as repeat-induced point mutation and quelling. Furthermore, we examine the regulatory effects of transcript sequences, including introns and untranslated regions, pre-mRNA (messenger RNA) processing, transcript transport, and mRNA stability. We anticipate that this review will become a resource for researchers who aim at advancing the use of these fascinating organisms as protein production factories, for both academic and industrial purposes, and also for scientists with general interest in the biology of the filamentous fungi.
Collapse
Affiliation(s)
- Xiaoyun Su
- Energy Biosciences Institute, University of Illinois, Urbana, IL, USA; Institute for Genomic Biology, University of Illinois, Urbana, IL, USA; Equal contribution
| | | | | | | | | |
Collapse
|
10
|
Ryder LS, Harris BD, Soanes DM, Kershaw MJ, Talbot NJ, Thornton CR. Saprotrophic competitiveness and biocontrol fitness of a genetically modified strain of the plant-growth-promoting fungus Trichoderma hamatum GD12. MICROBIOLOGY (READING, ENGLAND) 2012; 158:84-97. [PMID: 21835878 DOI: 10.1099/mic.0.051854-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Trichoderma species are ubiquitous soil fungi that hold enormous potential for the development of credible alternatives to agrochemicals and synthetic fertilizers in sustainable crop production. In this paper, we show that substantial improvements in plant productivity can be met by genetic modification of a plant-growth-promoting and biocontrol strain of Trichoderma hamatum, but that these improvements are obtained in the absence of disease pressure only. Using a quantitative monoclonal antibody-based ELISA, we show that an N-acetyl-β-d-glucosaminidase-deficient mutant of T. hamatum, generated by insertional mutagenesis of the corresponding gene, has impaired saprotrophic competitiveness during antagonistic interactions with Rhizoctonia solani in soil. Furthermore, its fitness as a biocontrol agent of the pre-emergence damping-off pathogen Sclerotinia sclerotiorum is significantly reduced, and its ability to promote plant growth is constrained by the presence of both pathogens. This work shows that while gains in T. hamatum-mediated plant-growth-promotion can be met through genetic manipulation of a single beneficial trait, such a modification has negative impacts on other aspects of its biology and ecology that contribute to its success as a saprotrophic competitor and antagonist of soil-borne pathogens. The work has important implications for fungal morphogenesis, demonstrating a clear link between hyphal architecture and secretory potential. Furthermore, it highlights the need for a holistic approach to the development of genetically modified Trichoderma strains for use as crop stimulants and biocontrol agents in plant agriculture.
Collapse
Affiliation(s)
- Lauren S Ryder
- Biosciences, College of Life and Environmental Sciences, University of Exeter, Geoffrey Pope Building, Stocker Road, Exeter EX4 4QD, UK
| | - Beverley D Harris
- Biosciences, College of Life and Environmental Sciences, University of Exeter, Geoffrey Pope Building, Stocker Road, Exeter EX4 4QD, UK
| | - Darren M Soanes
- Biosciences, College of Life and Environmental Sciences, University of Exeter, Geoffrey Pope Building, Stocker Road, Exeter EX4 4QD, UK
| | - Michael J Kershaw
- Biosciences, College of Life and Environmental Sciences, University of Exeter, Geoffrey Pope Building, Stocker Road, Exeter EX4 4QD, UK
| | - Nicholas J Talbot
- Biosciences, College of Life and Environmental Sciences, University of Exeter, Geoffrey Pope Building, Stocker Road, Exeter EX4 4QD, UK
| | - Christopher R Thornton
- Biosciences, College of Life and Environmental Sciences, University of Exeter, Geoffrey Pope Building, Stocker Road, Exeter EX4 4QD, UK
| |
Collapse
|
11
|
Zembek P, Perlinska-Lenart U, Brunner K, Reithner B, Palamarczyk G, Mach RL, Kruszewska JS. Elevated activity of dolichyl phosphate mannose synthase enhances biocontrol abilities of Trichoderma atroviride. MOLECULAR PLANT-MICROBE INTERACTIONS : MPMI 2011; 24:1522-1529. [PMID: 21770768 DOI: 10.1094/mpmi-02-11-0025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Antagonism of Trichoderma spp. against phytopathogenic fungi is widely exploited for biocontrol of plant diseases. A crucial role in the biocontrol mechanism is attributed to cell-wall-degrading enzymes secreted by Trichoderma spp. Therefore, more efficient production and secretion of the enzymes should elevate the biocontrol abilities of Trichoderma spp. Because the majority of secretory hydrolases are glycoproteins, it has been postulated that the posttranslational modification of these proteins could constitute a bottleneck in their production and secretion. Our previous study showed that improvement of O-glycosylation elevated protein secretion by Trichoderma reesei. In this study, we enhanced the biocontrol abilities of T. atroviride P1 against plant pathogens by overexpressing the Saccharomyces cerevisiae DPM1 gene coding for dolichyl phosphate mannose (DPM) synthase, a key enzyme in the O-glycosylation pathway. The transformants we obtained showed doubled DPM synthase activity and, at the same time, significantly elevated cellulolytic activity. They also revealed an improved antifungal activity against the plant pathogen Pythium ultimum.
Collapse
|
12
|
Zembek P, Perlińska-Lenart U, Rawa K, Górka-Nieć W, Palamarczyk G, Kruszewska JS. Cloning and functional analysis of the dpm2 and dpm3 genes from Trichoderma reesei expressed in a Saccharomyces cerevisiae dpm1Δ mutant strain. Biol Chem 2011; 392:517-27. [DOI: 10.1515/bc.2011.058] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractInTrichoderma reesei, dolichyl phosphate mannose (dpm) synthase, a key enzyme in the O-glycosylation process, requires three proteins for full activity. In this study, thedpm2anddpm3genes coding for the DPMII and DPMIII subunits ofT. reeseiDPM synthase were cloned and functionally analyzed after expression in theSaccharomyces cerevisiae dpm1Δ[genotype (BY4743;his3Δ1; /leu2Δ0; lys2Δ0; /ura3Δ0; YPR183w::kanMX4] mutant. It was found that apart from the catalytic subunit DPMI, the DPMIII subunit is also essential to form an active DPM synthase in yeast. Additional expression of the DPMII protein, considered to be a regulatory subunit of DPM synthase, decreased the enzymatic activity. We also characterizedS. cerevisiaestrains expressing thedpm1,2,3ordpm1, 3genes and analyzed the consequences ofdpmexpression on protein O-glycosylationin vivoand on the cell wall composition.
Collapse
|
13
|
Integration of additional copies of Trichoderma reesei gene encoding protein O-mannosyltransferase I results in a decrease of the enzyme activity and alteration of cell wall composition. Fungal Biol 2011; 115:124-32. [DOI: 10.1016/j.funbio.2010.11.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2010] [Revised: 10/19/2010] [Accepted: 11/17/2010] [Indexed: 11/19/2022]
|
14
|
Górka-Nieć W, Perlińska-Lenart U, Zembek P, Palamarczyk G, Kruszewska JS. Influence of sorbitol on protein production and glycosylation and cell wall formation in Trichoderma reesei. Fungal Biol 2010; 114:855-62. [PMID: 20943195 DOI: 10.1016/j.funbio.2010.07.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2009] [Revised: 05/14/2010] [Accepted: 07/29/2010] [Indexed: 12/22/2022]
Abstract
Sorbitol is often used at 1 mol/liter as an osmotic stabilizer for cultivation of fungi with a fragile cell wall phenotype. On the other hand, at this concentration sorbitol causes an osmotic stress in fungal cells resulting in intensive production of intracellular glycerol. The highly increased consumption of glucose for glycerol synthesis may lead to changes in processes requiring carbohydrate residues. This study provides new information on the consequences of osmotic stress to the cell wall composition, protein production and glycosylation, and cell morphology of Trichoderma reesei. We observed that high osmolarity conditions enhanced biomass production and strongly limited synthesis of cell wall glucans and chitin. Moreover, in these conditions the amount of secreted protein decreased nearly ten-fold and expression of cbh1 and cbh2 genes coding for cellobiohydrolase I and cellobiohydrolase II, the main secretory proteins in T. reesei, was inhibited resulting in a lack of the proteins in the cell and cultivation medium. The activity of DPM synthase, enzyme engaged in both N- and O-glycosylation pathways, was reduced two-fold, suggesting an overall inhibition of protein glycosylation. However, the two modes of glycosylation were affected divergently: O-glycosylation of secreted proteins decreased in the early stages of growth while N-glycosylation significantly increased in the stationary phase.
Collapse
Affiliation(s)
- Wioletta Górka-Nieć
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland
| | | | | | | | | |
Collapse
|
15
|
Developing Aspergillus as a host for heterologous expression. Biotechnol Adv 2009; 27:53-75. [DOI: 10.1016/j.biotechadv.2008.09.001] [Citation(s) in RCA: 204] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2008] [Revised: 09/04/2008] [Accepted: 09/07/2008] [Indexed: 12/11/2022]
|
16
|
Goto M. Protein O-glycosylation in fungi: diverse structures and multiple functions. Biosci Biotechnol Biochem 2007; 71:1415-27. [PMID: 17587671 DOI: 10.1271/bbb.70080] [Citation(s) in RCA: 135] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Protein glycosylation is essential for eukaryotic cells from yeasts to humans. When compared to N-glycosylation, O-glycosylation is variable in sugar components and the mode of linkages connecting the sugars. In fungi, secretory proteins are commonly mannosylated by protein O-mannosyltransferase (PMT) in the endoplasmic reticulum, and subsequently glycosylated by several glycosyltransferases in the Golgi apparatus to form glycoproteins with diverse O-glycan structures. Protein O-glycosylation has roles in modulating the function of secretory proteins by enhancing the stability and solubility of the proteins, by affording protection from protease degradation, and by acting as a sorting determinant in yeasts. In filamentous fungi, protein O-glycosylation contributes to proper maintenance of fungal morphology, hyphal development, and differentiation. This review describes recent studies of the structure and function of protein O-glycosylation in industrially and medically important fungi.
Collapse
Affiliation(s)
- Masatoshi Goto
- Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, Japan.
| |
Collapse
|