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Sandmann G. Generation of stable homozygous transformants of diploid yeasts such as Xanthophyllomyces dendrorhous. Appl Microbiol Biotechnol 2022; 106:4921-4927. [PMID: 35831455 PMCID: PMC9329418 DOI: 10.1007/s00253-022-12054-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 06/22/2022] [Accepted: 06/26/2022] [Indexed: 11/24/2022]
Abstract
The nonconventional yeast Xanthophyllomyces dendrorhous is an established platform for genetic pathway modification. A genetic tool box is available and can be used extensively to select from for different engineering strategies. Due to the diploid nature of X. dendrorhous, genetic transformation typically results in heterozygous lines. They are genetically unstable and lose their phenotypes caused by mitotic recombination. In addition, targeted integration for inactivation of genes of the carotenoid pathway resulted in an intermediary phenotype of incomplete pathway disruption. This issue is the main scope of this review. It is illustrated by using genetic modification of the carotenoid pathway of X. dendrorhous as a model system with a focus on the demonstration of how to solve these problems by generation of homozygous lines. They can be selected from heterozygous transformants after spontaneous mitotic recombination and selection or after induced meiotic recombination. Corresponding methods of how to proceed including the initiation of a sexual cycle are described. The selected segregated lines are stable in fermenter cultures without the need of selection pressure. This is an essential requirement for any industrial application. KEY POINTS: • Genetic interventions of diploid yeasts result in heterozygous transformants that are unstable without selection pressure. • This is due to mitotic recombination leading to the elimination of inserted DNA. • Stable homozygous lines can be obtained and selected after either meiotic or mitotic recombination.
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Affiliation(s)
- Gerhard Sandmann
- Institute for Molecular Biosciences, Department of Bio Sciences, Goethe University Frankfurt, Frankfurt/M, Max von Laue Str. 9, 60438, Frankfurt, Germany.
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Carotenoids and Their Biosynthesis in Fungi. Molecules 2022; 27:molecules27041431. [PMID: 35209220 PMCID: PMC8879039 DOI: 10.3390/molecules27041431] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 02/16/2022] [Accepted: 02/16/2022] [Indexed: 12/04/2022] Open
Abstract
Carotenoids represent a class of pigmented terpenoids. They are distributed in all taxonomic groups of fungi. Most of the fungal carotenoids differ in their chemical structures to those from other organisms. The general function of carotenoids in heterotrophic organisms is protection as antioxidants against reactive oxygen species generated by photosensitized reactions. Furthermore, carotenoids are metabolized to apocarotenoids by oxidative cleavage. This review presents the current knowledge on fungal-specific carotenoids, their occurrence in different taxonomic groups, and their biosynthesis and conversion into trisporic acids. The outline of the different pathways was focused on the reactions and genes involved in not only the known pathways, but also suggested the possible mechanisms of reactions, which may occur in several non-characterized pathways in different fungi. Finally, efforts and strategies for genetic engineering to enhance or establish pathways for the production of various carotenoids in carotenogenic or non-carotenogenic yeasts were highlighted, addressing the most-advanced producers of each engineered yeast, which offered the highest biotechnological potentials as production systems.
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Abstract
Colorants find social and commercial applications in cosmetics, food, pharmaceuticals, textiles, and other industrial sectors. Among the available options, chemically synthesized colorants are popular due to their low-cost and flexible production modes, but health and environmental concerns have encouraged the valorization of biopigments that are natural and ecofriendly. Among natural biopigment producers, microorganisms are noteworthy for their all-seasonal production of stable and low-cost pigments with high-yield titers. Fungi are paramount sources of natural pigments. They occupy diverse ecological niches with adaptive metabolisms and biocatalytic pathways, making them entities with an industrial interest. Industrially important biopigments like carotenoids, melanins, riboflavins, azaphilones, and quinones produced by filamentous fungi are described within the context of this review. Most recent information about fungal pigment characteristics, biochemical production routes and pathways, potential applications, limitations, and future research perspectives are described.
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Affiliation(s)
- Haritha Meruvu
- Department of Chemical Engineering, Andhra University College of Engineering - AU North Campus, Andhra University, Visakhapatnam, India.,Department of Biotechnology, National Institute of Technology Andhra Pradesh, Tadepalligudem, India.,Department of Bioengineering, Faculty of Engineering and Natural Sciences, Gaziosmanpaşa University, Tokat, Turkey
| | - Júlio César Dos Santos
- Department of Biotechnology, Engineering School of Lorena (EEL), University of São Paulo (USP), Estrada Municipal do Campinho, Lorena/SP, Brazil
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Kanamoto H, Nakamura K, Misawa N. Carotenoid Production in Oleaginous Yeasts. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1261:153-163. [PMID: 33783737 DOI: 10.1007/978-981-15-7360-6_12] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Oleaginous yeasts, Yarrowia lipolytica and Lipomyces starkeyi, can synthesize more than 20% of lipids per dry cell weight from a wide variety of substrates. This feature is attractive for cost-efficient production of industrial biodiesel fuel. These yeasts are also very promising hosts for the efficient production of more value-added lipophilic compound carotenoids, e.g., lycopene and astaxanthin, although they cannot naturally biosynthesize carotenoids. Here, we review recent progress in researches on carotenoid production by oleaginous yeasts, which include red yeasts that naturally produce carotenoids, e.g., Rhodotorula glutinis and Xanthophyllomyces dendrorhous. Our new results on pathway engineering of L. starkeyi for lycopene production are also revealed in the present review.
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Affiliation(s)
| | - Katsuya Nakamura
- KNC Bio Research Center, KNC Laboratories Co., Ltd., Kobe, Hyogo, Japan
| | - Norihiko Misawa
- Research Institute for Bioresources and Biotechnology, Ishikawa Prefectural University, Ishikawa, Japan
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Sandmann G, Pollmann H, Gassel S, Breitenbach J. Xanthophyllomyces dendrorhous, a Versatile Platform for the Production of Carotenoids and Other Acetyl-CoA-Derived Compounds. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1261:137-151. [PMID: 33783736 DOI: 10.1007/978-981-15-7360-6_11] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Xanthophyllomyces dendrorhous (with Phaffia rhodozyma as its anamorphic state) is a basidiomycetous, moderately psychrophilic, red yeast belonging to the Cystofilobasidiales. Its red pigmentation is caused by the accumulation of astaxanthin, which is a unique feature among fungi. The present chapter reviews astaxanthin biosynthesis and acetyl-CoA metabolism in X. dendrorhous and describes the construction of a versatile platform for the production of carotenoids, such as astaxanthin, and other acetyl-CoA-derived compounds including fatty acids by using this fungus.
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Affiliation(s)
- Gerhard Sandmann
- Biosynthesis Group, Molecular Biosciences, Goethe University, Frankfurt, Germany.
| | - Hendrik Pollmann
- Biosynthesis Group, Molecular Biosciences, Goethe University, Frankfurt, Germany
| | - Sören Gassel
- Biosynthesis Group, Molecular Biosciences, Goethe University, Frankfurt, Germany
| | - Jürgen Breitenbach
- Biosynthesis Group, Molecular Biosciences, Goethe University, Frankfurt, Germany
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Lagashetti AC, Dufossé L, Singh SK, Singh PN. Fungal Pigments and Their Prospects in Different Industries. Microorganisms 2019; 7:E604. [PMID: 31766735 PMCID: PMC6955906 DOI: 10.3390/microorganisms7120604] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 11/13/2019] [Accepted: 11/18/2019] [Indexed: 12/22/2022] Open
Abstract
The public's demand for natural, eco-friendly, and safe pigments is significantly increasing in the current era. Natural pigments, especially fungal pigments, are receiving more attention and seem to be in high demand worldwide. The immense advantages of fungal pigments over other natural or synthetic pigments have opened new avenues in the market for a wide range of applications in different industries. In addition to coloring properties, other beneficial attributes of fungal pigments, such as antimicrobial, anticancer, antioxidant, and cytotoxic activity, have expanded their use in different sectors. This review deals with the study of fungal pigments and their applications and sheds light on future prospects and challenges in the field of fungal pigments. Furthermore, the possible application of fungal pigments in the textile industry is also addressed.
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Affiliation(s)
- Ajay C. Lagashetti
- Biodiversity and Palaeobiology Group, National Fungal Culture Collection of India (NFCCI), MACS’ Agharkar Research Institute, G.G. Agarkar Road, Pune 411004, India; (A.C.L.); (P.N.S.)
| | - Laurent Dufossé
- Chimie et Biotechnologie des Produits Naturels & ESIROI Agroalimentaire, Université de la Réunion, 15 Avenue René Cassin, CS 92003, F-97744 Saint-Denis CEDEX, France
| | - Sanjay K. Singh
- Biodiversity and Palaeobiology Group, National Fungal Culture Collection of India (NFCCI), MACS’ Agharkar Research Institute, G.G. Agarkar Road, Pune 411004, India; (A.C.L.); (P.N.S.)
| | - Paras N. Singh
- Biodiversity and Palaeobiology Group, National Fungal Culture Collection of India (NFCCI), MACS’ Agharkar Research Institute, G.G. Agarkar Road, Pune 411004, India; (A.C.L.); (P.N.S.)
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Wurtzel ET. Changing Form and Function through Carotenoids and Synthetic Biology. PLANT PHYSIOLOGY 2019; 179:830-843. [PMID: 30361256 PMCID: PMC6393808 DOI: 10.1104/pp.18.01122] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Accepted: 10/06/2018] [Indexed: 05/06/2023]
Abstract
The diverse structures and multifaceted roles of carotenoids make these colorful pigments attractive targets for synthetic biology.
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Affiliation(s)
- Eleanore T Wurtzel
- Department of Biological Sciences, Lehman College, The City University of New York, Bronx, New York 10468
- The Graduate School and University Center-CUNY, New York, New York 10016-4309
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Otero DM, Bulsing BA, Huerta KDM, Rosa CA, Zambiazi RC, Burkert CAV, Burkert JFDM. CAROTENOID-PRODUCING YEASTS IN THE BRAZILIAN BIODIVERSITY: ISOLATION, IDENTIFICATION AND CULTIVATION IN AGROINDUSTRIAL WASTE. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2019. [DOI: 10.1590/0104-6632.20190361s20170433] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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