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Peng B, Dai L, Iacovelli R, Driessen AJM, Haslinger K. Heterologous Naringenin Production in the Filamentous Fungus Penicillium rubens. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:20782-20792. [PMID: 38103029 PMCID: PMC10755750 DOI: 10.1021/acs.jafc.3c06755] [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: 09/19/2023] [Revised: 12/01/2023] [Accepted: 12/06/2023] [Indexed: 12/17/2023]
Abstract
Naringenin is a natural product with several reported bioactivities and is the key intermediate for the entire class of plant flavonoids. The translation of flavonoids into modern medicine as pure compounds is often hampered by their low abundance in nature and their difficult chemical synthesis. Here, we investigated the possibility to use the filamentous fungus Penicillium rubens as a host for flavonoid production. P. rubens is a well-characterized, highly engineered, traditional "workhorse" for the production of β-lactam antibiotics. We integrated two plant genes encoding enzymes in the naringenin biosynthesis pathway into the genome of the secondary metabolite-deficient P. rubens 4xKO strain. After optimization of the fermentation conditions, we obtained an excellent molar yield of naringenin from fed p-coumaric acid (88%) with a titer of 0.88 mM. Along with product accumulation over 36 h, however, we also observed rapid degradation of naringenin. Based on high-resolution mass spectrometry analysis, we propose a naringenin degradation pathway in P. rubens 4xKO, which is distinct from other flavonoid-converting pathways reported in fungi. Our work demonstrates that P. rubens is a promising host for recombinant flavonoid production, and it represents an interesting starting point for further investigation into the utilization of plant biomass by filamentous fungi.
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Affiliation(s)
- Bo Peng
- Chemical
and Pharmaceutical Biology, Groningen Research
Institute of Pharmacy, University of Groningen, Antonius Deusinglaan 1, 9713AV Groningen, The Netherlands
| | - Lin Dai
- Molecular
Microbiology, Groningen Biomolecular Sciences
and Biotechnology Institute, University of Groningen, Nijenborgh 7, 9747AG Groningen, The Netherlands
| | - Riccardo Iacovelli
- Chemical
and Pharmaceutical Biology, Groningen Research
Institute of Pharmacy, University of Groningen, Antonius Deusinglaan 1, 9713AV Groningen, The Netherlands
| | - Arnold J. M. Driessen
- Molecular
Microbiology, Groningen Biomolecular Sciences
and Biotechnology Institute, University of Groningen, Nijenborgh 7, 9747AG Groningen, The Netherlands
| | - Kristina Haslinger
- Chemical
and Pharmaceutical Biology, Groningen Research
Institute of Pharmacy, University of Groningen, Antonius Deusinglaan 1, 9713AV Groningen, The Netherlands
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2
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Gil-Durán C, Palma D, Marcano Y, Palacios JL, Martínez C, Rojas-Aedo JF, Levicán G, Vaca I, Chávez R. CRISPR/Cas9-Mediated Disruption of the pcz1 Gene and Its Impact on Growth, Development, and Penicillin Production in Penicillium rubens. J Fungi (Basel) 2023; 9:1010. [PMID: 37888266 PMCID: PMC10607824 DOI: 10.3390/jof9101010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 10/02/2023] [Accepted: 10/11/2023] [Indexed: 10/28/2023] Open
Abstract
Penicillium rubens is a filamentous fungus of great biotechnological importance due to its role as an industrial producer of the antibiotic penicillin. However, despite its significance, our understanding of the regulatory mechanisms governing biological processes in this fungus is still limited. In fungi, zinc finger proteins containing a Zn(II)2Cys6 domain are particularly interesting regulators. Although the P. rubens genome harbors many genes encoding proteins with this domain, only two of them have been investigated thus far. In this study, we employed CRISPR-Cas9 technology to disrupt the pcz1 gene, which encodes a Zn(II)2Cys6 protein in P. rubens. The disruption of pcz1 resulted in a decrease in the production of penicillin in P. rubens. This decrease in penicillin production was accompanied by the downregulation of the expression of pcbAB, pcbC and penDE genes, which form the biosynthetic gene cluster responsible for penicillin production. Moreover, the disruption of pcz1 also impacts on asexual development, leading to decreased growth and conidiation, as well as enhanced conidial germination. Collectively, our results indicate that pcz1 acts as a positive regulator of penicillin production, growth, and conidiation, while functioning as a negative regulator of conidial germination in P. rubens. To the best of our knowledge, this is the first report involving a gene encoding a Zn(II)2Cys6 protein in the regulation of penicillin biosynthesis in P. rubens.
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Affiliation(s)
- Carlos Gil-Durán
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile (USACH), Santiago 9170022, Chile; (C.G.-D.); (Y.M.); (J.F.R.-A.); (G.L.)
| | - Diego Palma
- Departamento de Química, Facultad de Ciencias, Universidad de Chile, Santiago 7800003, Chile;
| | - Yudethzi Marcano
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile (USACH), Santiago 9170022, Chile; (C.G.-D.); (Y.M.); (J.F.R.-A.); (G.L.)
| | - José-Luis Palacios
- Centro de Estudios en Ciencia y Tecnología de los Alimentos (CECTA), Universidad de Santiago de Chile (USACH), Santiago 9170022, Chile; (J.-L.P.); (C.M.)
| | - Claudio Martínez
- Centro de Estudios en Ciencia y Tecnología de los Alimentos (CECTA), Universidad de Santiago de Chile (USACH), Santiago 9170022, Chile; (J.-L.P.); (C.M.)
- Departamento de Ciencia y Tecnología de los Alimentos, Facultad Tecnológica, Universidad de Santiago de Chile (USACH), Santiago 9170022, Chile
| | - Juan F. Rojas-Aedo
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile (USACH), Santiago 9170022, Chile; (C.G.-D.); (Y.M.); (J.F.R.-A.); (G.L.)
| | - Gloria Levicán
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile (USACH), Santiago 9170022, Chile; (C.G.-D.); (Y.M.); (J.F.R.-A.); (G.L.)
| | - Inmaculada Vaca
- Departamento de Química, Facultad de Ciencias, Universidad de Chile, Santiago 7800003, Chile;
| | - Renato Chávez
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile (USACH), Santiago 9170022, Chile; (C.G.-D.); (Y.M.); (J.F.R.-A.); (G.L.)
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3
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Mapook A, Hyde KD, Hassan K, Kemkuignou BM, Čmoková A, Surup F, Kuhnert E, Paomephan P, Cheng T, de Hoog S, Song Y, Jayawardena RS, Al-Hatmi AMS, Mahmoudi T, Ponts N, Studt-Reinhold L, Richard-Forget F, Chethana KWT, Harishchandra DL, Mortimer PE, Li H, Lumyong S, Aiduang W, Kumla J, Suwannarach N, Bhunjun CS, Yu FM, Zhao Q, Schaefer D, Stadler M. Ten decadal advances in fungal biology leading towards human well-being. FUNGAL DIVERS 2022; 116:547-614. [PMID: 36123995 PMCID: PMC9476466 DOI: 10.1007/s13225-022-00510-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Accepted: 07/28/2022] [Indexed: 11/04/2022]
Abstract
Fungi are an understudied resource possessing huge potential for developing products that can greatly improve human well-being. In the current paper, we highlight some important discoveries and developments in applied mycology and interdisciplinary Life Science research. These examples concern recently introduced drugs for the treatment of infections and neurological diseases; application of -OMICS techniques and genetic tools in medical mycology and the regulation of mycotoxin production; as well as some highlights of mushroom cultivaton in Asia. Examples for new diagnostic tools in medical mycology and the exploitation of new candidates for therapeutic drugs, are also given. In addition, two entries illustrating the latest developments in the use of fungi for biodegradation and fungal biomaterial production are provided. Some other areas where there have been and/or will be significant developments are also included. It is our hope that this paper will help realise the importance of fungi as a potential industrial resource and see the next two decades bring forward many new fungal and fungus-derived products.
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Affiliation(s)
- Ausana Mapook
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100 Thailand
| | - Kevin D. Hyde
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100 Thailand
- School of Science, Mae Fah Luang University, Chiang Rai, 57100 Thailand
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201 Yunnan China
- Research Center of Microbial Diversity and Sustainable Utilization, Chiang Mai University, Chiang Mai, 50200 Thailand
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, 50200 Thailand
- Innovative Institute of Plant Health, Zhongkai University of Agriculture and Engineering, Haizhu District, Guangzhou, 510225 China
| | - Khadija Hassan
- Department Microbial Drugs, Helmholtz Centre for Infection Research (HZI), and German Centre for Infection Research (DZIF), Partner Site Hannover-Braunschweig, Inhoffenstrasse 7, 38124 Brunswick, Germany
| | - Blondelle Matio Kemkuignou
- Department Microbial Drugs, Helmholtz Centre for Infection Research (HZI), and German Centre for Infection Research (DZIF), Partner Site Hannover-Braunschweig, Inhoffenstrasse 7, 38124 Brunswick, Germany
| | - Adéla Čmoková
- Laboratory of Fungal Genetics and Metabolism, Institute of Microbiology, Czech Academy of Sciences, Prague, Czech Republic
| | - Frank Surup
- Department Microbial Drugs, Helmholtz Centre for Infection Research (HZI), and German Centre for Infection Research (DZIF), Partner Site Hannover-Braunschweig, Inhoffenstrasse 7, 38124 Brunswick, Germany
- Institute of Microbiology, Technische Universität Braunschweig, Spielmannstraße 7, 38106 Brunswick, Germany
| | - Eric Kuhnert
- Centre of Biomolecular Drug Research (BMWZ), Institute for Organic Chemistry, Leibniz University Hannover, Schneiderberg 38, 30167 Hannover, Germany
| | - Pathompong Paomephan
- Department Microbial Drugs, Helmholtz Centre for Infection Research (HZI), and German Centre for Infection Research (DZIF), Partner Site Hannover-Braunschweig, Inhoffenstrasse 7, 38124 Brunswick, Germany
- Department of Biotechnology, Faculty of Science, Mahidol University, 272 Rama VI Road, Ratchathewi, Bangkok, 10400 Thailand
| | - Tian Cheng
- Department Microbial Drugs, Helmholtz Centre for Infection Research (HZI), and German Centre for Infection Research (DZIF), Partner Site Hannover-Braunschweig, Inhoffenstrasse 7, 38124 Brunswick, Germany
- Laboratory of Fungal Genetics and Metabolism, Institute of Microbiology, Czech Academy of Sciences, Prague, Czech Republic
| | - Sybren de Hoog
- Center of Expertise in Mycology, Radboud University Medical Center / Canisius Wilhelmina Hospital, Nijmegen, The Netherlands
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, Guizhou Medical University, Guiyang, China
- Microbiology, Parasitology and Pathology Graduate Program, Federal University of Paraná, Curitiba, Brazil
| | - Yinggai Song
- Department of Dermatology, Peking University First Hospital, Peking University, Beijing, China
| | - Ruvishika S. Jayawardena
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100 Thailand
- School of Science, Mae Fah Luang University, Chiang Rai, 57100 Thailand
| | - Abdullah M. S. Al-Hatmi
- Center of Expertise in Mycology, Radboud University Medical Center / Canisius Wilhelmina Hospital, Nijmegen, The Netherlands
- Natural and Medical Sciences Research Center, University of Nizwa, Nizwa, Oman
| | - Tokameh Mahmoudi
- Department of Biochemistry, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Nadia Ponts
- INRAE, UR1264 Mycology and Food Safety (MycSA), 33882 Villenave d’Ornon, France
| | - Lena Studt-Reinhold
- Department of Applied Genetics and Cell Biology, Institute of Microbial Genetics, University of Natural Resources and Life Sciences, Vienna (BOKU), Tulln an der Donau, Austria
| | | | - K. W. Thilini Chethana
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100 Thailand
- School of Science, Mae Fah Luang University, Chiang Rai, 57100 Thailand
| | - Dulanjalee L. Harishchandra
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100 Thailand
- School of Science, Mae Fah Luang University, Chiang Rai, 57100 Thailand
- Beijing Key Laboratory of Environment Friendly Management on Fruit Diseases and Pests in North China, Institute of Plant Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097 China
| | - Peter E. Mortimer
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201 Yunnan China
- Centre for Mountain Futures (CMF), Kunming Institute of Botany, Chinese Academy of Science, Kunming, 650201 Yunnan China
| | - Huili Li
- Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201 Yunnan China
- Centre for Mountain Futures (CMF), Kunming Institute of Botany, Chinese Academy of Science, Kunming, 650201 Yunnan China
| | - Saisamorm Lumyong
- Research Center of Microbial Diversity and Sustainable Utilization, Chiang Mai University, Chiang Mai, 50200 Thailand
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, 50200 Thailand
- Academy of Science, The Royal Society of Thailand, Bangkok, 10300 Thailand
| | - Worawoot Aiduang
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, 50200 Thailand
| | - Jaturong Kumla
- Research Center of Microbial Diversity and Sustainable Utilization, Chiang Mai University, Chiang Mai, 50200 Thailand
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, 50200 Thailand
| | - Nakarin Suwannarach
- Research Center of Microbial Diversity and Sustainable Utilization, Chiang Mai University, Chiang Mai, 50200 Thailand
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, 50200 Thailand
| | - Chitrabhanu S. Bhunjun
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100 Thailand
- School of Science, Mae Fah Luang University, Chiang Rai, 57100 Thailand
| | - Feng-Ming Yu
- Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai, 57100 Thailand
- School of Science, Mae Fah Luang University, Chiang Rai, 57100 Thailand
- Yunnan Key Laboratory of Fungal Diversity and Green Development, Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201 Yunnan China
| | - Qi Zhao
- Yunnan Key Laboratory of Fungal Diversity and Green Development, Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201 Yunnan China
| | - Doug Schaefer
- Centre for Mountain Futures (CMF), Kunming Institute of Botany, Chinese Academy of Science, Kunming, 650201 Yunnan China
| | - Marc Stadler
- Department Microbial Drugs, Helmholtz Centre for Infection Research (HZI), and German Centre for Infection Research (DZIF), Partner Site Hannover-Braunschweig, Inhoffenstrasse 7, 38124 Brunswick, Germany
- Institute of Microbiology, Technische Universität Braunschweig, Spielmannstraße 7, 38106 Brunswick, Germany
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4
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Mózsik L, Iacovelli R, Bovenberg RAL, Driessen AJM. Transcriptional Activation of Biosynthetic Gene Clusters in Filamentous Fungi. Front Bioeng Biotechnol 2022; 10:901037. [PMID: 35910033 PMCID: PMC9335490 DOI: 10.3389/fbioe.2022.901037] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 06/17/2022] [Indexed: 11/13/2022] Open
Abstract
Filamentous fungi are highly productive cell factories, many of which are industrial producers of enzymes, organic acids, and secondary metabolites. The increasing number of sequenced fungal genomes revealed a vast and unexplored biosynthetic potential in the form of transcriptionally silent secondary metabolite biosynthetic gene clusters (BGCs). Various strategies have been carried out to explore and mine this untapped source of bioactive molecules, and with the advent of synthetic biology, novel applications, and tools have been developed for filamentous fungi. Here we summarize approaches aiming for the expression of endogenous or exogenous natural product BGCs, including synthetic transcription factors, assembly of artificial transcription units, gene cluster refactoring, fungal shuttle vectors, and platform strains.
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Affiliation(s)
- László Mózsik
- Department of Molecular Microbiology, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Groningen, Netherlands
| | - Riccardo Iacovelli
- Department of Molecular Microbiology, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Groningen, Netherlands
| | - Roel A. L. Bovenberg
- DSM Biotechnology Center, Delft, Netherlands
- Department of Synthetic Biology and Cell Engineering, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Groningen, Netherlands
| | - Arnold J. M. Driessen
- Department of Molecular Microbiology, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Groningen, Netherlands
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5
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Fierro F, Vaca I, Castillo NI, García-Rico RO, Chávez R. Penicillium chrysogenum, a Vintage Model with a Cutting-Edge Profile in Biotechnology. Microorganisms 2022; 10:573. [PMID: 35336148 PMCID: PMC8954384 DOI: 10.3390/microorganisms10030573] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 02/15/2022] [Accepted: 02/17/2022] [Indexed: 12/20/2022] Open
Abstract
The discovery of penicillin entailed a decisive breakthrough in medicine. No other medical advance has ever had the same impact in the clinical practise. The fungus Penicillium chrysogenum (reclassified as P. rubens) has been used for industrial production of penicillin ever since the forties of the past century; industrial biotechnology developed hand in hand with it, and currently P. chrysogenum is a thoroughly studied model for secondary metabolite production and regulation. In addition to its role as penicillin producer, recent synthetic biology advances have put P. chrysogenum on the path to become a cell factory for the production of metabolites with biotechnological interest. In this review, we tell the history of P. chrysogenum, from the discovery of penicillin and the first isolation of strains with high production capacity to the most recent research advances with the fungus. We will describe how classical strain improvement programs achieved the goal of increasing production and how the development of different molecular tools allowed further improvements. The discovery of the penicillin gene cluster, the origin of the penicillin genes, the regulation of penicillin production, and a compilation of other P. chrysogenum secondary metabolites will also be covered and updated in this work.
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Affiliation(s)
- Francisco Fierro
- Departamento de Biotecnología, Universidad Autónoma Metropolitana-Unidad Iztapalapa, Ciudad de México 09340, Mexico
| | - Inmaculada Vaca
- Departamento de Química, Facultad de Ciencias, Universidad de Chile, Santiago 7800003, Chile;
| | - Nancy I. Castillo
- Grupo de Investigación en Ciencias Biológicas y Químicas, Facultad de Ciencias, Universidad Antonio Nariño, Bogotá 110231, Colombia;
| | - Ramón Ovidio García-Rico
- Grupo de Investigación GIMBIO, Departamento De Microbiología, Facultad de Ciencias Básicas, Universidad de Pamplona, Pamplona 543050, Colombia;
| | - Renato Chávez
- Departamento de Biología, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago 9170020, Chile;
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Fölsz O, Lin CC, Task D, Riabinina O, Potter CJ. The Q-system: A Versatile Repressible Binary Expression System. Methods Mol Biol 2022; 2540:35-78. [PMID: 35980572 DOI: 10.1007/978-1-0716-2541-5_2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Binary expression systems are useful genetic tools for experimentally labeling or manipulating the function of defined cells. The Q-system is a repressible binary expression system that consists of a transcription factor QF (and the recently improved QF2/QF2w), the inhibitor QS, a QUAS-geneX effector, and a drug that inhibits QS (quinic acid). The Q-system can be used alone or in combination with other binary expression systems, such as GAL4/UAS and LexA/LexAop. In this review chapter, we discuss the past, present, and future of the Q-system for applications in Drosophila and other organisms. We discuss the in vivo application of the Q-system for transgenic labeling, the modular nature of QF that allows chimeric or split transcriptional activators to be developed, its temporal control by quinic acid, new methods to generate QF2 reagents, intersectional expression labeling, and its recent adoption into many emerging experimental species.
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Affiliation(s)
- Orsolya Fölsz
- Department of Biosciences, Durham University, Durham, UK
| | - Chun-Chieh Lin
- Department of Pathology and Laboratory Medicine, Giesel School of Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, NH, USA
| | - Darya Task
- Department of Biology, Johns Hopkins University, Baltimore, MD, USA
| | | | - Christopher J Potter
- The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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7
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Liu K, Wang L, Jiang B, An J, Nian B, Wang D, Chen L, Ma Y, Wang X, Fan J, Luo H, Pan Y, Zhao M. Effect of inoculation with Penicillium chrysogenum on chemical components and fungal communities in fermentation of Pu-erh tea. Food Res Int 2021; 150:110748. [PMID: 34865766 DOI: 10.1016/j.foodres.2021.110748] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 09/08/2021] [Accepted: 10/08/2021] [Indexed: 11/20/2022]
Abstract
Developing an effective method to improve the quality of Pu-erh tea is of great scientific and commercial interest. In this work, Penicillium chrysogenum P1 isolated from Pu-erh tea was inoculated in sterilized or unsterilized sun-dreid green tea leaves to develop pure-culture fermentation (PF) and enhanced fermentation (EF) of Pu-erh tea. Spectrophotometry and high performance liquid chromatography determined that contents of free amino acids (FAA), total tea polyphenols and eight polyphenolic compounds in PF were significantly lower than these in non-inoculation control test (CK) (P < 0.05), whereas the contents of soluble sugars and theabrownins (TB) in PF were significantly higher (P < 0.05) than in CK. A total of 416 volatile compounds were detected by headspace solid-phase micro-extraction combined with gas chromatography-mass spectrometry. Comparison to CK, 124 compounds in PF were degraded or decreased significantly [Variable importance in projection [(VIP) > 1.0, P < 0.05, fold change (FC) < 0.5], whereas 110 compounds in PF were formed or increased significantly (VIP > 1.0, P < 0.05, FC > 2). Compared with normal fermentation (NF), the levels of gallic acid, (+)-catechin, (-)-epicatechin and 64 volatile compounds in EF were significantly lower (VIP > 1.0, P < 0.05, FC < 0.5), whereas the levels of FAA and 39 volatile compounds were significantly higher (VIP > 1.0, P < 0.05, FC > 2). Amplicon sequencing of fungal internal transcribed spacer 1 (ITS1) revealed that P. chrysogenum P1 didn't become the dominant fungus in EF; while the fungal communities in EF were different from those in NF, in that the relative abundances of Blastobotrys bambusae and P. chrysogenum in EF were higher, and the relative abundances of Aspergillus niger and Kluyveromyces marxianus in EF were lower. Overall, inoculation of P. chrysogenum in unsterilized sun-dreid green tea leaves changed the the fungal communities in fermentation of Pu-erh tea, and chemical compounds in fermented tea leaves, i.e., the levels of TB and the compounds responsible for the stale flavor, e.g., 2-amino-4-methoxybenzothiazole were increased, resulting in improvement of the sensory quality, including mellower taste and stronger stale flavor.
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Affiliation(s)
- Kunyi Liu
- College of Tea Science & College of Food Science and Technology, Yunnan Agricultural University, Kunming, Yunnan 650201, China; College of Wuliangye Technology and Food Engineering & College of Modern Agriculture, Yibin Vocational and Technical College, Yibin, Sichuan 644003, China
| | - Liyan Wang
- College of Tea Science & College of Food Science and Technology, Yunnan Agricultural University, Kunming, Yunnan 650201, China
| | - Bin Jiang
- College of Tea Science & College of Food Science and Technology, Yunnan Agricultural University, Kunming, Yunnan 650201, China; College of Wuliangye Technology and Food Engineering & College of Modern Agriculture, Yibin Vocational and Technical College, Yibin, Sichuan 644003, China
| | - Jiangshan An
- College of Tea Science & College of Food Science and Technology, Yunnan Agricultural University, Kunming, Yunnan 650201, China
| | - Bo Nian
- College of Tea Science & College of Food Science and Technology, Yunnan Agricultural University, Kunming, Yunnan 650201, China
| | - Daoping Wang
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Lijiao Chen
- College of Tea Science & College of Food Science and Technology, Yunnan Agricultural University, Kunming, Yunnan 650201, China
| | - Yan Ma
- College of Tea Science & College of Food Science and Technology, Yunnan Agricultural University, Kunming, Yunnan 650201, China
| | - Xinghua Wang
- Tea Science Research Institute of Pu-erh City, Puer, Yunnan 665000, China
| | - Jiakun Fan
- College of Tea Science & College of Food Science and Technology, Yunnan Agricultural University, Kunming, Yunnan 650201, China
| | - Hui Luo
- College of Tea Science & College of Food Science and Technology, Yunnan Agricultural University, Kunming, Yunnan 650201, China
| | - Yinghong Pan
- Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Ming Zhao
- College of Tea Science & College of Food Science and Technology, Yunnan Agricultural University, Kunming, Yunnan 650201, China; State Key Laboratory for Conservation and Utilization of Bio-resources in Yunnan & The Key Laboratory of Medicinal Plant Biology of Yunnan Province & National-Local Joint Engineering Research Center on Germplasm Innovation and Utilization of Chinese Medicinal Materials in Southwestern China, Yunnan Agricultural University, Kunming, Yunnan 650201, China.
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8
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Kück U, Dahlmann TA. The Confusion in Renaming Species: Penicillium chrysogenum and Penicillium rubens. Microbiol Resour Announc 2021; 10:e0046421. [PMID: 34854731 PMCID: PMC8638606 DOI: 10.1128/mra.00464-21] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Ulrich Kück
- Allgemeine und Molekulare Botanik, Ruhr-Universität, Bochum, Germany
| | - Tim A. Dahlmann
- Allgemeine und Molekulare Botanik, Ruhr-Universität, Bochum, Germany
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Mózsik L, Pohl C, Meyer V, Bovenberg RAL, Nygård Y, Driessen AJM. Modular Synthetic Biology Toolkit for Filamentous Fungi. ACS Synth Biol 2021; 10:2850-2861. [PMID: 34726388 PMCID: PMC8609570 DOI: 10.1021/acssynbio.1c00260] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
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Filamentous fungi
are highly productive cell factories, often used
in industry for the production of enzymes and small bioactive compounds.
Recent years have seen an increasing number of synthetic-biology-based
applications in fungi, emphasizing the need for a synthetic biology
toolkit for these organisms. Here we present a collection of 96 genetic
parts, characterized in Penicillium or Aspergillus species, that are
compatible and interchangeable with the Modular Cloning system. The
toolkit contains natural and synthetic promoters (constitutive and
inducible), terminators, fluorescent reporters, and selection markers.
Furthermore, there are regulatory and DNA-binding domains of transcriptional
regulators and components for implementing different CRISPR-based
technologies. Genetic parts can be assembled into complex multipartite
assemblies and delivered through genomic integration or expressed
from an AMA1-sequence-based, fungal-replicating shuttle vector. With
this toolkit, synthetic transcription units with established promoters,
fusion proteins, or synthetic transcriptional regulation devices can
be more rapidly assembled in a standardized and modular manner for
novel fungal cell factories.
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Affiliation(s)
- László Mózsik
- Molecular Microbiology, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, 9747 AG Groningen, The Netherlands
| | - Carsten Pohl
- Chair of Applied and Molecular Microbiology, Institute of Biotechnology, Technische Universität Berlin, 10623 Berlin, Germany
| | - Vera Meyer
- Chair of Applied and Molecular Microbiology, Institute of Biotechnology, Technische Universität Berlin, 10623 Berlin, Germany
| | - Roel A. L. Bovenberg
- DSM Biotechnology Center, 2613 AX Delft, The Netherlands
- Synthetic Biology and Cell Engineering, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, 9747 AG Groningen, The Netherlands
| | - Yvonne Nygård
- Department of Biology and Biological Engineering, Division of Industrial Biotechnology, Chalmers University of Technology, 412 96 Gothenburg, Sweden
| | - Arnold J. M. Driessen
- Molecular Microbiology, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, 9747 AG Groningen, The Netherlands
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Mormino M, Siewers V, Nygård Y. Development of an Haa1-based biosensor for acetic acid sensing in Saccharomyces cerevisiae. FEMS Yeast Res 2021; 21:6363685. [PMID: 34477863 PMCID: PMC8435060 DOI: 10.1093/femsyr/foab049] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 09/01/2021] [Indexed: 12/13/2022] Open
Abstract
Acetic acid is one of the main inhibitors of lignocellulosic hydrolysates and acetic acid tolerance is crucial for the development of robust cell factories for conversion of biomass. As a precursor of acetyl-coenzyme A, it also plays an important role in central carbon metabolism. Thus, monitoring acetic acid levels is a crucial aspect when cultivating yeast. Transcription factor-based biosensors represent useful tools to follow metabolite concentrations. Here, we present the development of an acetic acid biosensor based on the Saccharomyces cerevisiae transcription factor Haa1 that upon binding to acetic acid relocates to the nucleus. In the biosensor, a synthetic transcription factor consisting of Haa1 and BM3R1 from Bacillus megaterium was used to control expression of a reporter gene under a promoter containing BM3R1 binding sites. The biosensor did not drive expression under a promoter containing Haa1 binding sites and responded to acetic acid over a linear range spanning from 10 to 60 mM. To validate its applicability, the biosensor was integrated into acetic acid-producing strains. A direct correlation between biosensor output and acetic acid production was detected. The developed biosensor enables high-throughput screening of strains producing acetic acid and could also be used to investigate acetic acid-tolerant strain libraries.
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Affiliation(s)
- Maurizio Mormino
- Department of Biology and Biological Engineering, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden
| | - Verena Siewers
- Department of Biology and Biological Engineering, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden.,Novo Nordisk Foundation Center for Biosustainability, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden
| | - Yvonne Nygård
- Department of Biology and Biological Engineering, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden
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Lalwani MA, Zhao EM, Wegner SA, Avalos JL. The Neurospora crassa Inducible Q System Enables Simultaneous Optogenetic Amplification and Inversion in Saccharomyces cerevisiae for Bidirectional Control of Gene Expression. ACS Synth Biol 2021; 10:2060-2075. [PMID: 34346207 DOI: 10.1021/acssynbio.1c00229] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Bidirectional optogenetic control of yeast gene expression has great potential for biotechnological applications. Our group has developed optogenetic inverter circuits that activate transcription using darkness, as well as amplifier circuits that reach high expression levels under limited light. However, because both types of circuits harness Gal4p and Gal80p from the galactose (GAL) regulon they cannot be used simultaneously. Here, we apply the Q System, a transcriptional activator/inhibitor system from Neurospora crassa, to build circuits in Saccharomyces cerevisiae that are inducible using quinic acid, darkness, or blue light. We develop light-repressed OptoQ-INVRT circuits that initiate darkness-triggered transcription within an hour of induction, as well as light-activated OptoQ-AMP circuits that achieve up to 39-fold induction. The Q System does not exhibit crosstalk with the GAL regulon, allowing coutilization of OptoQ-AMP circuits with previously developed OptoINVRT circuits. As a demonstration of practical applications in metabolic engineering, we show how simultaneous use of these circuits can be used to dynamically control both growth and production to improve acetoin production, as well as enable light-tunable co-production of geraniol and linalool, two terpenoids implicated in the hoppy flavor of beer. OptoQ-AMP and OptoQ-INVRT circuits enable simultaneous optogenetic signal amplification and inversion, providing powerful additions to the yeast optogenetic toolkit.
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Affiliation(s)
- Makoto A. Lalwani
- Department of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Evan M. Zhao
- Department of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, United States
| | - Scott A. Wegner
- Department of Molecular Biology. Princeton University, Princeton, New Jersey 08544, United States
| | - José L. Avalos
- Department of Chemical and Biological Engineering, Princeton University, Princeton, New Jersey 08544, United States
- Department of Molecular Biology. Princeton University, Princeton, New Jersey 08544, United States
- The Andlinger Center for Energy and the Environment, Princeton University, Princeton, New Jersey 08544, United States
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12
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CRISPR-based transcriptional activation tool for silent genes in filamentous fungi. Sci Rep 2021; 11:1118. [PMID: 33441979 PMCID: PMC7806857 DOI: 10.1038/s41598-020-80864-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 12/21/2020] [Indexed: 01/29/2023] Open
Abstract
Filamentous fungi are historically known to be a rich reservoir of bioactive compounds that are applied in a myriad of fields ranging from crop protection to medicine. The surge of genomic data available shows that fungi remain an excellent source for new pharmaceuticals. However, most of the responsible biosynthetic gene clusters are transcriptionally silent under laboratory growth conditions. Therefore, generic strategies for activation of these clusters are required. Here, we present a genome-editing-free, transcriptional regulation tool for filamentous fungi, based on the CRISPR activation (CRISPRa) methodology. Herein, a nuclease-defective mutant of Cas9 (dCas9) was fused to a highly active tripartite activator VP64-p65-Rta (VPR) to allow for sgRNA directed targeted gene regulation. dCas9-VPR was introduced, together with an easy to use sgRNA "plug-and-play" module, into a non-integrative AMA1-vector, which is compatible with several filamentous fungal species. To demonstrate its potential, this vector was used to transcriptionally activate a fluorescent reporter gene under the control of the penDE core promoter in Penicillium rubens. Subsequently, we activated the transcriptionally silent, native P. rubens macrophorin biosynthetic gene cluster by targeting dCas9-VPR to the promoter region of the transcription factor macR. This resulted in the production of antimicrobial macrophorins. This CRISPRa technology can be used for the rapid and convenient activation of silent fungal biosynthetic gene clusters, and thereby aid in the identification of novel compounds such as antimicrobials.
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Iacovelli R, Mózsik L, Bovenberg RA, Driessen AJ. Identification of a conserved N-terminal domain in the first module of ACV synthetases. Microbiologyopen 2021; 10:e1145. [PMID: 33449449 PMCID: PMC7884236 DOI: 10.1002/mbo3.1145] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 11/25/2020] [Accepted: 11/28/2020] [Indexed: 11/25/2022] Open
Abstract
The l-δ-(α-aminoadipoyl)-l-cysteinyl-d-valine synthetase (ACVS) is a trimodular nonribosomal peptide synthetase (NRPS) that provides the peptide precursor for the synthesis of β-lactams. The enzyme has been extensively characterized in terms of tripeptide formation and substrate specificity. The first module is highly specific and is the only NRPS unit known to recruit and activate the substrate l-α-aminoadipic acid, which is coupled to the α-amino group of l-cysteine through an unusual peptide bond, involving its δ-carboxyl group. Here we carried out an in-depth investigation on the architecture of the first module of the ACVS enzymes from the fungus Penicillium rubens and the bacterium Nocardia lactamdurans. Bioinformatic analyses revealed the presence of a previously unidentified domain at the N-terminus which is structurally related to condensation domains, but smaller in size. Deletion variants of both enzymes were generated to investigate the potential impact on penicillin biosynthesis in vivo and in vitro. The data indicate that the N-terminal domain is important for catalysis.
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Affiliation(s)
- Riccardo Iacovelli
- Molecular MicrobiologyGroningen Biomolecular Sciences and Biotechnology InstituteUniversity of GroningenGroningenThe Netherlands
| | - László Mózsik
- Molecular MicrobiologyGroningen Biomolecular Sciences and Biotechnology InstituteUniversity of GroningenGroningenThe Netherlands
| | - Roel A.L. Bovenberg
- Synthetic Biology and Cell EngineeringGroningen Biomolecular Sciences and Biotechnology InstituteUniversity of GroningenGroningenThe Netherlands
- DSM Biotechnology CentreDelftThe Netherlands
| | - Arnold J.M. Driessen
- Molecular MicrobiologyGroningen Biomolecular Sciences and Biotechnology InstituteUniversity of GroningenGroningenThe Netherlands
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