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Rühl M, Lange K, Kües U. Laccase production and pellet morphology of Coprinopsis cinerea transformants in liquid shake flask cultures. Appl Microbiol Biotechnol 2018; 102:7849-7863. [PMID: 30032435 DOI: 10.1007/s00253-018-9227-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 07/05/2018] [Indexed: 10/28/2022]
Abstract
Laccase production and pellet formation of transformants of Coprinopsis cinerea strain FA2222 of C. cinerea laccase gene lcc1 subcloned behind the gpdII-promoter from Agaricus bisporus were compared with a control transformant carrying no extra laccase gene. At the optimum growth temperature of 37 °C, maximal laccase yields of 2.9 U/ml were obtained by the best lcc1 transformant pYSK7-26 in liquid shake flask cultures. Reduction in temperature to 25 °C increased laccase yields up to 9.2 U/ml. The control transformant had no laccase activities at 37 °C but native activity at 25 °C (3.5 U/ml). Changing the temperature had severe effects on the morphology of the mycelial pellets formed during cultivation, but links of distinct pellet morphologies to native or recombinant laccase production could not be established. Automated image analysis was used to characterise pellet formation and morphological parameters (pellet area, diameter, convexity and mycelial structure). Cross sections of selected pellets showed that they differentiated in an outer rind and an inner medulla of loosened hyphae. Pellets at 25 °C had a small and dense outer zone and adopted with time a smooth surface. Pellets at 37 °C had a broader outer zone and a fringy surface due to generation of more and larger protuberances in the rind that when released can serve for production of further pellets.
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Affiliation(s)
- Martin Rühl
- Molecular Wood Biotechnology and Technical Mycology, Büsgen-Institute and Goettingen Center for Molecular Biosciences (GZMB), University of Goettingen, Büsgenweg 2, 37077, Goettingen, Germany.,Institute of Food Chemistry and Food Biotechnology, Justus-Liebig-University Giessen, Heinrich-Buff-Ring 17, 35392, Giessen, Germany
| | - Karin Lange
- Molecular Wood Biotechnology and Technical Mycology, Büsgen-Institute and Goettingen Center for Molecular Biosciences (GZMB), University of Goettingen, Büsgenweg 2, 37077, Goettingen, Germany
| | - Ursula Kües
- Molecular Wood Biotechnology and Technical Mycology, Büsgen-Institute and Goettingen Center for Molecular Biosciences (GZMB), University of Goettingen, Büsgenweg 2, 37077, Goettingen, Germany.
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Stajić M, Vukojević J, Milovanović I, Ćilerdžić J, Knežević A. Role of Mushroom Mn-Oxidizing Peroxidases in Biomass Conversion. ACTA ACUST UNITED AC 2016. [DOI: 10.1007/978-3-319-43679-1_10] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
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3
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Paradoxical performance of tryptophan synthase gene trp1 (+) in transformations of the basidiomycete Coprinopsis cinerea. Appl Microbiol Biotechnol 2016; 100:8789-807. [PMID: 27368741 DOI: 10.1007/s00253-016-7693-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Revised: 06/14/2016] [Accepted: 06/17/2016] [Indexed: 10/21/2022]
Abstract
Several transformation strains of Coprinopsis cinerea carry the defective tryptophan synthase allele trp1-1,1-6 which can be complemented by introduction of the trp1 (+) wild-type gene. Regularly in C. cinerea, single-trp1 (+)-vector transformations yield about half the numbers of clones than cotransformations with a non-trp1 (+)-plasmid done in parallel. The effect is also observed with the orthologous Schizophyllum commune trpB (+) gene shown here to function as a selection marker in C. cinerea. Parts of single-trp1 (+) - or single-trpB (+) -vector transformants are apparently lost. This paradoxical phenomenon relates to de-regulation of aromatic amino acid biosynthesis pathways. Adding tryptophan precursors to protoplast regeneration agar or feeding with other aromatic amino acids increases loss of single-trp1 (+)-vector transformants and also sets off loss of clones in cotransformation with a non-trp1 (+)-plasmid. Feedback control by tryptophan and cross-pathway control by tyrosine and phenylalanine are both active in the process. We deduce from the observations that more cotransformants than single-vector transformants are obtained by in average less disturbance of the tryptophan biosynthesis pathway. DNA in C. cinerea transformation usually integrates into the genome at multiple ectopic places. Integration events for a single vector per nucleus should statistically be 2-fold higher in single-vector transformations than in cotransformations in which the two different molecules compete for the same potential integration sites. Integration of more trp1 (+) copies into the genome might more likely lead to sudden tryptophan overproduction with subsequent rigid shut-down of the pathway. Blocking ectopic DNA integration in a Δku70 mutant abolished the effect of doubling clone numbers in cotransformations due to preferred single trp1 (+) integration by homologous recombination at its native genomic site.
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An aryl-alcohol oxidase of Pleurotus sapidus: heterologous expression, characterization, and application in a 2-enzyme system. Appl Microbiol Biotechnol 2016; 100:8021-30. [DOI: 10.1007/s00253-016-7567-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Revised: 04/12/2016] [Accepted: 04/18/2016] [Indexed: 10/21/2022]
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5
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Sindhu R, Binod P, Pandey A. Biological pretreatment of lignocellulosic biomass--An overview. BIORESOURCE TECHNOLOGY 2016; 199:76-82. [PMID: 26320388 DOI: 10.1016/j.biortech.2015.08.030] [Citation(s) in RCA: 369] [Impact Index Per Article: 46.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Revised: 08/10/2015] [Accepted: 08/11/2015] [Indexed: 05/06/2023]
Abstract
Pretreatment is an important step involved in the production of bioethanol from lignocelluosic biomass. Though several pretreatment regimes are available, biological pretreatment seems to be promising being an eco-friendly process and there is no inhibitor generation during the process. In the current scenario there are few limitations in using this strategy for pilot scale process. The first and foremost one is the long incubation time for effective delignification. This can be minimized to an extent by using suitable microbial consortium. There is an urgent need for research and development activities and fine tuning of the process for the development of an economically viable process. This review presents an overview of various aspects of biological pretreatment, enzymes involved in the process, parameters affecting biological pretreatment as well as future perspectives.
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Affiliation(s)
- Raveendran Sindhu
- Biotechnology Division, National Institute for Interdisciplinary Science and Technology, CSIR, Trivandrum 695 019, India.
| | - Parameswaran Binod
- Biotechnology Division, National Institute for Interdisciplinary Science and Technology, CSIR, Trivandrum 695 019, India
| | - Ashok Pandey
- Biotechnology Division, National Institute for Interdisciplinary Science and Technology, CSIR, Trivandrum 695 019, India
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6
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van Kuijk S, Sonnenberg A, Baars J, Hendriks W, Cone J. Fungal treated lignocellulosic biomass as ruminant feed ingredient: A review. Biotechnol Adv 2015; 33:191-202. [DOI: 10.1016/j.biotechadv.2014.10.014] [Citation(s) in RCA: 100] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Revised: 09/23/2014] [Accepted: 10/31/2014] [Indexed: 10/24/2022]
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7
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Paliwal R, Rawat AP, Rawat M, Rai JPN. Bioligninolysis: recent updates for biotechnological solution. Appl Biochem Biotechnol 2012; 167:1865-89. [PMID: 22639362 DOI: 10.1007/s12010-012-9735-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2012] [Accepted: 05/10/2012] [Indexed: 10/28/2022]
Abstract
Bioligninolysis involves living organisms and/or their products in degradation of lignin, which is highly resistant, plant-originated polymer having three-dimensional network of dimethoxylated (syringyl), monomethoxylated (guaiacyl), and non-methoxylated (p-hydroxyphenyl) phenylpropanoid and acetylated units. As a major repository of aromatic chemical structures on earth, lignin bears paramount significance for its removal owing to potential application of bioligninolytic systems in industrial production. Early reports illustrating the discovery and cloning of ligninolytic biocatalysts in fungi was truly a landmark in the field of enzymatic delignification. However, the enzymology for bacterial delignification is hitherto poorly understood. Moreover, the lignin-degrading bacterial genes are still unknown and need further exploration. This review deals with the current knowledge about ligninolytic enzyme families produced by fungi and bacteria, their mechanisms of action, and genetic regulation and reservations, which render them attractive candidates in biotechnological applications.
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Affiliation(s)
- Rashmi Paliwal
- Ecotechnology Laboratory, Department of Environmental Science, G.B.Pant. University of Agriculture and Technology, Pantnagar 263145, India
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Molecular breeding of a novel Coprinopsis cinerea strain possessing a heterologous laccase gene, lccK, driven by a constitutive promoter. MYCOSCIENCE 2011. [DOI: 10.1007/s10267-011-0122-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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9
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Protease inhibitors clitocypin and macrocypin are differentially expressed within basidiomycete fruiting bodies. Biochimie 2011; 93:1685-93. [DOI: 10.1016/j.biochi.2011.05.034] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2011] [Accepted: 05/31/2011] [Indexed: 11/18/2022]
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Kim JK, Park YJ, Kong WS, Kang HW. Highly Efficient Electroporation-mediated Transformation into Edible Mushroom Flammulina velutipes. MYCOBIOLOGY 2010; 38:331-335. [PMID: 23956676 PMCID: PMC3741529 DOI: 10.4489/myco.2010.38.4.331] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2010] [Accepted: 10/19/2010] [Indexed: 06/02/2023]
Abstract
In this study, we developed an efficient electroporation-mediated transformation system featuring Flammulina velutipes. The flammutoxin (ftx) gene of F. velutipes was isolated by reverse transcription-PCR. pFTXHg plasmid was constructed using the partial ftx gene (410 bp) along with the hygromycin B phosphotransferase gene (hygB) downstream of the glyceraldehydes-3-phosphate dehydrogenase (gpd) promoter. The plasmid was transformed into protoplasts of monokaryotic strain 4019-20 of F. velutipes by electroporation. High transformation efficiency was obtained with an electric-pulse of 1.25 kV/cm by using 177 transformants/µg of DNA in 1 × 10(7) protoplasts. PCR and Southern blot hybridization indicated that a single copy of the plasmid DNA was inserted at different locations in the F. velutipes genome by non-homologous recombination. Therefore, this transformation system could be used as a useful tool for gene function analysis of F. velutipes.
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Affiliation(s)
- Jong Kun Kim
- Graduate School of Biotechnology & Information Technology, Hankyong National University, Ansung 456-749, Korea. ; Institute of Genetic Engineering, Hankyong National University, Ansung 456-749, Korea
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Han F, Liu Y, Guo LQ, Zeng XL, Liu ZM, Lin JF. Heterologous expression of the immunomodulatory protein gene from Ganoderma sinense in the basidiomycete Coprinopsis cinerea. J Appl Microbiol 2010; 109:1838-44. [PMID: 20659187 DOI: 10.1111/j.1365-2672.2010.04811.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
AIMS FIP-gsi, a fungal immunomodulatory protein found in Ganoderma sinense, has antitumour, anti-allergy and immunomodulatory activities and is regulated by the fip-gsi gene. In this study, we aimed to express the fip-gsi gene from G. sinense in Coprinopsis cinerea to increase yield of FIPs-gsi. METHODS AND RESULTS A fungal expression vector pBfip-gsi containing the gpd promoter from Agaricus bisporus and the fip-gsi gene from the G. sinense was constructed and transformed into C. cinerea. PCR and Southern blotting analysis verified the successful integration of the exogenous gene fip-gsi into the genome of C. cinerea. RT-PCR and Northern blotting analysis confirmed that the fip-gsi gene was transcribed in C. cinerea. The yield of the FIP-gsi protein reached 314mg kg(-1) fresh mycelia. The molecular weight of the FIP-gsi was 13kDa, and the FIP-gsi was capable of hemagglutinating mouse red blood cells, but no such activity was observed towards human red blood cells in vitro. CONCLUSIONS The fip-gsi from G. sinense has been successfully translated in C. cinerea, and the yield of bioactive FIP-gsi protein was high. SIGNIFICANCE AND IMPACT OF THE STUDY This is the first report using the C. cinerea for the heterologous expression of FIP-gsi protein and it might supply a basis for large-scale production of the protein.
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Affiliation(s)
- F Han
- Department of Bioengineering, College of Food Science, South China Agricultural University, Guangzhou, China
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12
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Kilaru S, Collins CM, Hartley AJ, Burns C, Foster GD, Bailey AM. Investigating dominant selection markers for Coprinopsis cinerea: a carboxin resistance system and re-evaluation of hygromycin and phleomycin resistance vectors. Curr Genet 2009; 55:543-50. [PMID: 19636558 DOI: 10.1007/s00294-009-0266-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2009] [Revised: 07/01/2009] [Accepted: 07/12/2009] [Indexed: 10/20/2022]
Abstract
Dominant selectable markers are beneficial for transformation of many fungi, particularly those model species where repeated transformations may be required. A carboxin resistance allele of the Coprinopsis cinerea sdi1 gene, encoding the iron-sulphur protein subunit of succinate dehydrogenase, was developed by introducing a suitable point mutation in the histidine block responsible for binding of the associated iron ion. This modified gene was used successfully to confer carboxin resistance upon transformation of C. cinerea protoplasts. Plasmids previously used to establish hygromycin transformation systems of several basidiomycete species, such as pAN7-1 and phph004, failed to give rise to hygromycin-resistant transformants of C. cinerea, whilst pPHT1 was successful. Sequencing of these constructs showed that the hygromycin resistance gene in pAN7-1 and phph004 had been modified removing the codons encoding two lysine residues following the N-terminal methionine. Replacement of the deleted 6 bp (AAA AAG) in the truncated hph gene led to generation of hygromycin-resistant transformants indicating the importance of these two codons for expression in C. cinerea. Phleomycin-resistant (ble) transformants were also obtained, but only with the intron-containing construct pblei004, showing that an intron is necessary to obtain phleomycin-resistant C. cinerea. This contrasts with hygromycin-resistance, where introns are not required for expression, emphasising the variability in importance of these elements.
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Affiliation(s)
- Sreedhar Kilaru
- School of Biological Sciences, University of Bristol, Woodland Road, Bristol, BS8 1UG, UK
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13
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Kuo CY, Huang CT. A reliable transformation method and heterologous expression of β-glucuronidase in Lentinula edodes. J Microbiol Methods 2008; 72:111-5. [DOI: 10.1016/j.mimet.2007.11.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2007] [Revised: 11/02/2007] [Accepted: 11/08/2007] [Indexed: 10/22/2022]
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14
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Murata H, Sunagawa M, Yamazaki T, Shishido K, Igasaki T. Expression of the autofluorescent protein, DsRed2, in the recombinants of the ectomycorrhizal basidiomycete, Suillus grevillei, generated by Agrobacterium-mediated transformation. MYCORRHIZA 2006; 16:407-412. [PMID: 16804705 DOI: 10.1007/s00572-006-0058-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2005] [Accepted: 04/26/2006] [Indexed: 05/10/2023]
Abstract
Recombinants were generated from the ectomycorrhizal basidiomycete, Suillus grevillei, through agroinfection using a binary vector carrying the hygromycin B resistance and the autofluorescent protein, DsRed2, markers. DsRed2 was driven by a cis-regulatory region of the glyceraldeyde-3-phosphate dehydrogenase gene (gpd) from the wood-rotting basidiomycete, Coriolus hirsutus, which contains promoters and 5' gpd sequences with first through fourth exons and expressed for the first time in Suillus spp. The transformation system and recombinants expressing an autofluorescent protein may be useful in genetic analysis of the symbiosis.
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Affiliation(s)
- Hitoshi Murata
- Department of Applied Microbiology and Mushroom Science, Forestry & Forest Products Research Institute, Matsunosato 1, Tsukuba, 305-8687, Japan.
| | - Masahide Sunagawa
- Department of Applied Microbiology and Mushroom Science, Forestry & Forest Products Research Institute, Matsunosato 1, Tsukuba, 305-8687, Japan
| | - Takashi Yamazaki
- Department of Life Science, Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology, Yokohama, Kanagawa, 226-8501, Japan
| | - Kazuo Shishido
- Department of Life Science, Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology, Yokohama, Kanagawa, 226-8501, Japan
| | - Tomohiro Igasaki
- Department of Molecular Cell Biology, Forestry & Forest Products Research Institute, Matsunosato 1, Tsukuba, 305-8687, Japan
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Murata H, Sunagawa M, Igasaki T, Shishido K. Agrobacterium-mediated transformation of the ectomycorrhizal basidiomycete Tricholoma matsutake that produces commercially valuable fruit bodies, matsutake. MYCOSCIENCE 2006. [DOI: 10.1007/s10267-006-0293-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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16
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Cho JH, Lee SE, Chang WB, Cha JS. Agrobacterium-mediated Transformation of the Winter Mushroom, Flammulina velutipes. MYCOBIOLOGY 2006; 34:104-107. [PMID: 24039479 PMCID: PMC3769545 DOI: 10.4489/myco.2006.34.2.104] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2006] [Indexed: 06/02/2023]
Abstract
Flammulina velutipes was transformed efficiently by Agrobacterium-mediated transformation system. The transformation frequency was about 16% with the gill tissues of the fungal fruiting body. Southern hybridization and genetic analysis suggest that the introduced DNA was inserted onto different locations of the fungal genome, and inherited stably to the next generation via basidiospores. Transformation or gene tagging with Agrobacterium T-DNA based vector should be useful for wide ranges of genetic or molecular biological studies of the mushroom.
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Affiliation(s)
- Jung-Hee Cho
- Department of Agricultural Biology, Chungbuk National University, Cheongju, Chungbuk 361-763, Korea
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17
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Webb CA, Szabo LJ, Bakkeren G, Garry C, Staples RC, Eversmeyer M, Fellers JP. Transient expression and insertional mutagenesis of Puccinia triticina using biolistics. Funct Integr Genomics 2005; 6:250-60. [PMID: 16284743 DOI: 10.1007/s10142-005-0009-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2005] [Revised: 09/01/2005] [Accepted: 09/04/2005] [Indexed: 11/26/2022]
Abstract
The fungal genus Puccinia contains more than 4,000 species. Puccinia triticina, causal agent of wheat leaf rust, is an economically significant, biotrophic basidiomycete. Little is known about the molecular biology of this group, and tools for understanding gene function have not yet been established. A set of parameters was established for the transient transformation of urediniospores. The expression of three heterologous promoters (actin, elongation factor 1-alpha, and Hss1, Heat Shock 70 protein), derived from Puccinia graminis, was evaluated along with the potential for insertional mutagenesis. The UidA (GUS) gene was used as a marker for transient expression. When transferred into P. triticina urediniospores, transient expression was observed across four helium pressures using one size of gold and three sizes of tungsten microprojectiles. Each of the three promoters displayed strong transient expression in germinated urediniospores; however, higher numbers of GUS-positive urediniospores were observed when either the actin or Hss1 promoters were used. Possible concomitant insertional mutagenesis of several avirulence genes was selected in wheat cultivars harboring the cognate resistance genes. Using a linearized cloning plasmid, stable integration into the genome was achieved as demonstrated by PCR and sequencing analysis.
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Affiliation(s)
- Craig A Webb
- USDA-ARS, Plant Science and Entomology Research Unit, Kansas State University, Manhattan, KS 66506-5502, USA
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18
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Kilaru S, Hoegger PJ, Majcherczyk A, Burns C, Shishido K, Bailey A, Foster GD, Kües U. Expression of laccase gene lcc1 in Coprinopsis cinerea under control of various basidiomycetous promoters. Appl Microbiol Biotechnol 2005; 71:200-10. [PMID: 16158283 DOI: 10.1007/s00253-005-0128-1] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2005] [Revised: 07/28/2005] [Accepted: 08/01/2005] [Indexed: 11/25/2022]
Abstract
Coprinopsis cinerea laccase gene lcc1 was expressed in this basidiomycete under naturally non-inductive conditions using various homologous and heterologous promoters. Laccase expression was achieved in solid and liquid media with promoter sequences from the C. cinerea tub1 gene, the Agaricus bisporus gpdII gene, the Lentinus edodes priA gene and the Schizophyllum commune Sc3 gene. As measured by enzyme activity in liquid cultures, a 277-bp gpdII promoter fragment, followed by a 423-bp priA fragment, was most efficient. A shorter priA sequence of 372 bp was inactive. tub1 promoter fragments were reasonably active, whereas the S. commune Sc3 promoter sequence was less active, in comparison. Irrespective of the promoter used, addition of copper to the medium increased enzymatic activities for highly active transformants by 10- to 50-fold and for less active transformants for 2- to 7-fold. The highest enzymatic activities (3 U/ml) were reached with the gpdII promoter in the presence of 0.1 mM CuSO(4).
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Affiliation(s)
- Sreedhar Kilaru
- Molecular Wood Biotechnology, Institute of Forest Botany, Georg-August-University Göttingen, Germany
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19
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Orihara K, Yamazaki T, Shinkyo R, Sakaki T, Inouye K, Tsukamoto A, Sugiura J, Shishido K. Rat cytochrome P450-mediated transformation of dichlorodibenzo-p-dioxins by recombinant white-rot basidiomycete Coriolus hirsutus. Appl Microbiol Biotechnol 2005; 69:22-8. [PMID: 15812643 DOI: 10.1007/s00253-005-1943-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2005] [Revised: 02/03/2005] [Accepted: 02/13/2005] [Indexed: 10/25/2022]
Abstract
Rat cytochrome P450, CYP1A1, has been reported to play an important role in the metabolism of mono-trichlorodibenzo-p-dioxins (M-TriCDDs). To breed lignin (and M-TetraCDDs)-degrading basidiomycete Coriolus hirsutus strains producing rat CYP1A1, an expression cassette [C. hirsutus gpd promoter-C. hirsutus gpd 5' portion (224-bp of 1st exon-8th base of 4th exon)-rat cyp1a1 cDNA-Lentinula edodes priA terminator] was constructed and inserted into pUCR1 carrying the C. hirsutus arg1 gene. The resulting recombinant plasmid, MIp5-(cyp1a1 + arg1) was introduced into protoplasts of C. hirsutus monokaryotic strain OJ1078 (Arg(-), Leu(-)), obtaining three good Arg(+) transformants. These transformants [ChTF5-2(CYP1A1), ChTF5-4(CYP1A1), and ChTF5-6(CYP1A1)] were estimated to carry nine, six, and seven copies of the expression cassette on their chromosomes, respectively. Immunoblot analysis revealed that the three transformants produce similar amounts of rat CYP1A1 enzyme. ChTF5-2(CYP1A1), ChTF5-4(CYP1A1), ChTF5-6(CYP1A1) and recipient OJ1078 were cultivated in a liquid medium containing 2,7/2,8(at a ratio of 1:1)-dichlorodibenzo-p-dioxins (2,7/2,8-DCDDs) and the amount of intra- and extracellular 2,7/2,8-DCDDs remaining was measured. The results showed that all three transformants efficiently transform 2,7/2,8-DCDDs through the action of the recombinant rat CYP1A1 enzyme.
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Affiliation(s)
- Kanami Orihara
- Department of Life Science, Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology, Nagatsuta, Midori-ku, Yokohama 226-8501, Japan
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Isolation of a ras gene from the basidiomycete Coriolus hirsutus and use of its promoter for the expression of Pleurotus ostreatus manganese(II) peroxidase cDNA in C. hirsutus. MYCOSCIENCE 2004. [DOI: 10.1007/s10267-004-0191-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Sun L, Cai H, Xu W, Hu Y, Lin Z. CaMV 35S promoter directs beta-glucuronidase expression in Ganoderma lucidum and Pleurotus citrinopileatus. Mol Biotechnol 2002; 20:239-44. [PMID: 11936254 DOI: 10.1385/mb:20:3:239] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The cauliflower mosaic virus (CaMV) 35S promoter has been most commonly used in plant transformation studies, but its activity in mushrooms has not been reported. p301-b is a binary vector containing a bialaphos resistance gene driven by the promoter of Lentinus edodes glyceraldehyde-3-phosphate dehydrogenase (GPD) gene. CaMV 35S-GUS was inserted into p301-b, and the resulting construct p301-bG was transformed to protoplasts of Ganoderma lucidum and basidiospores of Pleurotus citrinopileatus. GUS activity was observed in the transformants, indicating that CaMV 35S promoter can direct expression of exogenous gene in the mushrooms. This is the first report on the application of CaMV 35S promoter in genetic modification of mushrooms.
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Affiliation(s)
- Li Sun
- Life Sciences Center, College of Life Sciences, Peking University, Beijing, China
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Nomura N, Deguchi T, Shigeno-Akutsu Y, Nakajima-Kambe T, Nakahara T. Gene structures and catalytic mechanisms of microbial enzymes able to biodegrade the synthetic solid polymers nylon and polyester polyurethane. Biotechnol Genet Eng Rev 2002; 18:125-47. [PMID: 11530686 DOI: 10.1080/02648725.2001.10648011] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- N Nomura
- Institute of Applied Biochemistry, University of Tsukuba, Tsukuba, Ibaraki 305-0006, Japan.
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Ishizaki T, Shishido K. Decreased zinc ion accumulation by the basidiomycete Lentinus edodes over-expressing L. edodes PriA gene. FEMS Microbiol Lett 2000; 193:111-5. [PMID: 11094288 DOI: 10.1111/j.1574-6968.2000.tb09411.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
The information that the deduced expression product of Lentinus edodes priA gene consists of N-terminal hydrophobic sequence, putative zinc-binding motifs and C-terminal membrane-binding-promoting unique sequence led us to analyze its function in L. edodes. Here L. edodes monokaryotic cells over-expressing priA gene were found to exhibit a remarkably decreased accumulation of zinc ion, indicating the involvement of the priA gene in regulation of the intracellular zinc concentration.
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Affiliation(s)
- T Ishizaki
- Department of Life Science, Graduate School of Bioscience and Biotechnology, Tokyo Institute of Technology, Nagatsuta, Midori-ku, 226-8501, Yokohama, Japan
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Kikuchi M, Ogawa KI, Yamazaki T, Kajiwara S, Sugio A, Nakamura S, Shishido K. Secretional expression of aBacillus subtilisxylanase gene in the BasidiomyceteCoprinus cinereus. FEMS Microbiol Lett 1999. [DOI: 10.1111/j.1574-6968.1999.tb08688.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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