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Faustino M, Lourenço T, Strobbe S, Cao D, Fonseca A, Rocha I, Van Der Straeten D, Oliveira MM. Mathematical kinetic modelling followed by in vitro and in vivo assays reveal the bifunctional rice GTPCHII/DHBPS enzymes and demonstrate the key roles of OsRibA proteins in the vitamin B2 pathway. BMC PLANT BIOLOGY 2024; 24:220. [PMID: 38532321 DOI: 10.1186/s12870-024-04878-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 03/03/2024] [Indexed: 03/28/2024]
Abstract
BACKGROUND Riboflavin is the precursor of several cofactors essential for normal physical and cognitive development, but only plants and some microorganisms can produce it. Humans thus rely on their dietary intake, which at a global level is mainly constituted by cereals (> 50%). Understanding the riboflavin biosynthesis players is key for advancing our knowledge on this essential pathway and can hold promise for biofortification strategies in major crop species. In some bacteria and in Arabidopsis, it is known that RibA1 is a bifunctional protein with distinct GTP cyclohydrolase II (GTPCHII) and 3,4-dihydroxy-2-butanone-4-phosphate synthase (DHBPS) domains. Arabidopsis harbors three RibA isoforms, but only one retained its bifunctionality. In rice, however, the identification and characterization of RibA has not yet been described. RESULTS Through mathematical kinetic modeling, we identified RibA as the rate-limiting step of riboflavin pathway and by bioinformatic analysis we confirmed that rice RibA proteins carry both domains, DHBPS and GTPCHII. Phylogenetic analysis revealed that OsRibA isoforms 1 and 2 are similar to Arabidopsis bifunctional RibA1. Heterologous expression of OsRibA1 completely restored the growth of the rib3∆ yeast mutant, lacking DHBPS expression, while causing a 60% growth improvement of the rib1∆ mutant, lacking GTPCHII activity. Regarding OsRibA2, its heterologous expression fully complemented GTPCHII activity, and improved rib3∆ growth by 30%. In vitro activity assays confirmed that both OsRibA1 and OsRibA2 proteins carry GTPCHII/DHBPS activities, but that OsRibA1 has higher DHBPS activity. The overexpression of OsRibA1 in rice callus resulted in a 28% increase in riboflavin content. CONCLUSIONS Our study elucidates the critical role of RibA in rice riboflavin biosynthesis pathway, establishing it as the rate-limiting step in the pathway. By identifying and characterizing OsRibA1 and OsRibA2, showcasing their GTPCHII and DHBPS activities, we have advanced the understanding of riboflavin biosynthesis in this staple crop. We further demonstrated that OsRibA1 overexpression in rice callus increases its riboflavin content, providing supporting information for bioengineering efforts.
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Affiliation(s)
- Maria Faustino
- Laboratory of Plant Functional Genomics, Instituto de Tecnologia Química E Biológica António Xavier, Universidade Nova de Lisboa, Oeiras, 2780-157, Portugal
- Laboratory of Functional Plant Biology, Department of Biology, Ghent University, K. L. Ledeganckstraat 35, Gent, B-9000, Belgium
| | - Tiago Lourenço
- Laboratory of Plant Functional Genomics, Instituto de Tecnologia Química E Biológica António Xavier, Universidade Nova de Lisboa, Oeiras, 2780-157, Portugal
| | - Simon Strobbe
- Laboratory of Functional Plant Biology, Department of Biology, Ghent University, K. L. Ledeganckstraat 35, Gent, B-9000, Belgium
- University of Geneva, Quai E. Ansermet 30, Geneva, 1211, Switzerland
| | - Da Cao
- Laboratory of Functional Plant Biology, Department of Biology, Ghent University, K. L. Ledeganckstraat 35, Gent, B-9000, Belgium
| | - André Fonseca
- Laboratory of Systems and Synthetic Biology, Instituto de Tecnologia Química E Biológica António Xavier, Universidade Nova de Lisboa, Oeiras, 2780-157, Portugal
| | - Isabel Rocha
- Laboratory of Systems and Synthetic Biology, Instituto de Tecnologia Química E Biológica António Xavier, Universidade Nova de Lisboa, Oeiras, 2780-157, Portugal
| | - Dominique Van Der Straeten
- Laboratory of Functional Plant Biology, Department of Biology, Ghent University, K. L. Ledeganckstraat 35, Gent, B-9000, Belgium.
| | - M Margarida Oliveira
- Laboratory of Plant Functional Genomics, Instituto de Tecnologia Química E Biológica António Xavier, Universidade Nova de Lisboa, Oeiras, 2780-157, Portugal.
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Dmytruk KV, Ruchala J, Fayura LR, Chrzanowski G, Dmytruk OV, Tsyrulnyk AO, Andreieva YA, Fedorovych DV, Motyka OI, Mattanovich D, Marx H, Sibirny AA. Efficient production of bacterial antibiotics aminoriboflavin and roseoflavin in eukaryotic microorganisms, yeasts. Microb Cell Fact 2023; 22:132. [PMID: 37474952 PMCID: PMC10357625 DOI: 10.1186/s12934-023-02129-8] [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] [Received: 04/28/2023] [Accepted: 06/21/2023] [Indexed: 07/22/2023] Open
Abstract
BACKGROUND Actinomycetes Streptomyces davaonensis and Streptomyces cinnabarinus synthesize a promising broad-spectrum antibiotic roseoflavin, with its synthesis starting from flavin mononucleotide and proceeding through an immediate precursor, aminoriboflavin, that also has antibiotic properties. Roseoflavin accumulation by the natural producers is rather low, whereas aminoriboflavin accumulation is negligible. Yeasts have many advantages as biotechnological producers relative to bacteria, however, no recombinant producers of bacterial antibiotics in yeasts are known. RESULTS Roseoflavin biosynthesis genes have been expressed in riboflavin- or FMN-overproducing yeast strains of Candida famata and Komagataella phaffii. Both these strains accumulated aminoriboflavin, whereas only the latter produced roseoflavin. Aminoriboflavin isolated from the culture liquid of C. famata strain inhibited the growth of Staphylococcus aureus (including MRSA) and Listeria monocytogenes. Maximal accumulation of aminoriboflavin in shake-flasks reached 1.5 mg L- 1 (C. famata), and that of roseoflavin was 5 mg L- 1 (K. phaffii). Accumulation of aminoriboflavin and roseoflavin by K. phaffii recombinant strain in a bioreactor reached 22 and 130 mg L- 1, respectively. For comparison, recombinant strains of the native bacterial producer S. davaonensis accumulated near one-order less of roseoflavin while no recombinant producers of aminoriboflavin was reported at all. CONCLUSIONS Yeast recombinant producers of bacterial antibiotics aminoriboflavin and roseoflavin were constructed and evaluated.
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Affiliation(s)
- Kostyantyn V Dmytruk
- Institute of Cell Biology, National Academy of Sciences of Ukraine, Drahomanov St, 14/16, Lviv, 79005, Ukraine
| | - Justyna Ruchala
- University of Rzeszow, Zelwerowicza 4, Rzeszow, 35-601, Poland
| | - Liubov R Fayura
- Institute of Cell Biology, National Academy of Sciences of Ukraine, Drahomanov St, 14/16, Lviv, 79005, Ukraine
| | | | - Olena V Dmytruk
- Institute of Cell Biology, National Academy of Sciences of Ukraine, Drahomanov St, 14/16, Lviv, 79005, Ukraine
| | - Andriy O Tsyrulnyk
- Institute of Cell Biology, National Academy of Sciences of Ukraine, Drahomanov St, 14/16, Lviv, 79005, Ukraine
| | - Yuliia A Andreieva
- Institute of Cell Biology, National Academy of Sciences of Ukraine, Drahomanov St, 14/16, Lviv, 79005, Ukraine
| | - Daria V Fedorovych
- Institute of Cell Biology, National Academy of Sciences of Ukraine, Drahomanov St, 14/16, Lviv, 79005, Ukraine
| | - Olena I Motyka
- Research Institute of Epidemiology and Hygiene of the Danylo Halytsky Lviv National Medical University, Zelena St, 12, Lviv, 79005, Ukraine
| | - Diethard Mattanovich
- Department of Biotechnology, Institute of Microbiology and Microbial Biotechnology, University of Natural Resources and Life Sciences, Muthgasse 18, Vienna, Vienna, 1190, Austria
| | - Hans Marx
- Department of Biotechnology, Institute of Microbiology and Microbial Biotechnology, University of Natural Resources and Life Sciences, Muthgasse 18, Vienna, Vienna, 1190, Austria
| | - Andriy A Sibirny
- Institute of Cell Biology, National Academy of Sciences of Ukraine, Drahomanov St, 14/16, Lviv, 79005, Ukraine.
- University of Rzeszow, Zelwerowicza 4, Rzeszow, 35-601, Poland.
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Ilyas Z, Ali Redha A, Wu YS, Ozeer FZ, Aluko RE. Nutritional and Health Benefits of the Brown Seaweed Himanthalia elongata. PLANT FOODS FOR HUMAN NUTRITION (DORDRECHT, NETHERLANDS) 2023; 78:233-242. [PMID: 36947371 PMCID: PMC10363077 DOI: 10.1007/s11130-023-01056-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 03/02/2023] [Indexed: 06/18/2023]
Abstract
Himanthalia elongata is a brown seaweed containing several nutritional compounds and bioactive substances including antioxidants, dietary fibre, vitamins, fatty acids, amino acids, and macro- and trace- elements. A variety of bioactive compounds including phlorotannins, flavonoids, dietary fucoxanthin, hydroxybenzoic acid, hydroxycinnamic acid, polyphenols and carotenoids are also present in this seaweed. Multiple comparative studies were carried out between different seaweed species, wherein H. elongata was determined to exhibit high antioxidant capacity, total phenolic content, fucose content and potassium concentrations compared to other species. H. elongata extracts have also shown promising anti-hyperglycaemic and neuroprotective activities. H. elongata is being studied for its potential industrial food applications. In new meat product formulations, it lowered sodium content, improved phytochemical and fiber content in beef patties, improved properties of meat gel/emulsion systems, firmer and tougher with improved water and fat binding properties. This narrative review provides a comprehensive overview of the nutritional composition, bioactive properties, and food applications of H. elongata.
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Affiliation(s)
- Zahra Ilyas
- Department of Laboratory, Bahrain Specialist Hospital, P. O. Box: 10588, Juffair, Kingdom of Bahrain
| | - Ali Ali Redha
- The Department of Public Health and Sport Sciences, Faculty of Health and Life Sciences, University of Exeter Medical School, University of Exeter, Exeter, EX1 2LU, UK.
- Centre for Nutrition and Food Sciences, Queensland Alliance for Agriculture and Food Innovation (QAAFI), The University of Queensland, Brisbane, QLD, 4072, Australia.
| | - Yuan Seng Wu
- Centre for Virus and Vaccine Research, School of Medical and Life Sciences, Sunway University, Selangor, 47500, Malaysia
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Selangor, 47500, Malaysia
| | - Fathima Zahraa Ozeer
- Centre for Virus and Vaccine Research, School of Medical and Life Sciences, Sunway University, Selangor, 47500, Malaysia
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Selangor, 47500, Malaysia
| | - Rotimi E Aluko
- Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, MB, R3T 2N2, Canada
- Richardson Centre for Food Technology and Research (RCFTR), 196, Innovation Drive, Winnipeg, MB, R3T 2N2, Canada
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Sibirny AA. Metabolic engineering of non-conventional yeasts for construction of the advanced producers of biofuels and high-value chemicals. BBA ADVANCES 2022; 3:100071. [PMID: 37082251 PMCID: PMC10074886 DOI: 10.1016/j.bbadva.2022.100071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Non-conventional yeasts, i.e. yeasts different from Saccharomyces cerevisiae, represent heterogenous group of unicellular fungi consisting of near 1500 species. Some of these species have interesting and sometimes unique properties like ability to grow on methanol, n-alkanes, ferment pentose sugars xylose and l-arabinose, grow at high temperatures (50°С and more), overproduce riboflavin (vitamin B2) and others. These unique properties are important for development of basic science; moreover, some of them possess also significant applied interest for elaboration of new biotechnologies. Current paper represents review of the recent own results and of those of other authors in the field of non-conventional yeast study for construction of the advanced producers of biofuels (ethanol, isobutanol) from lignocellulosic sugars glucose and xylose or crude glycerol (Ogataea polymorpha, Magnusiomyces magnusii) and vitamin B2 (riboflavin) from glucose and cheese whey (Candida famata).
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Affiliation(s)
- Andriy A. Sibirny
- Institute of Cell Biology, NAS of Ukraine, Drahomanov Street 14/16, Lviv 79005 Ukraine
- University of Rzeszow, Zelwerowicza 4, Rzeszow 35-601 Poland
- Corresponding author at: Institute of Cell Biology, NAS of Ukraine, Drahomanov Street 14/16, Lviv 79005 Ukraine.
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Ruchala J, Andreieva YA, Tsyrulnyk AO, Sobchuk SM, Najdecka A, Wen L, Kang Y, Dmytruk OV, Dmytruk KV, Fedorovych DV, Sibirny AA. Cheese whey supports high riboflavin synthesis by the engineered strains of the flavinogenic yeast Candida famata. Microb Cell Fact 2022; 21:161. [PMID: 35964025 PMCID: PMC9375410 DOI: 10.1186/s12934-022-01888-0] [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: 07/06/2022] [Accepted: 08/05/2022] [Indexed: 11/29/2022] Open
Abstract
Background Riboflavin is a precursor of FMN and FAD which act as coenzymes of numerous enzymes. Riboflavin is an important biotechnological commodity with annual market sales exceeding nine billion US dollars. It is used primarily as a component of feed premixes, a food colorant, a component of multivitamin mixtures and medicines. Currently, industrial riboflavin production uses the bacterium, Bacillus subtilis, and the filamentous fungus, Ashbya gossypii, and utilizes glucose and/or oils as carbon substrates. Results We studied riboflavin biosynthesis in the flavinogenic yeast Candida famata that is a genetically stable riboflavin overproducer. Here it was found that the wild type C. famata is characterized by robust growth on lactose and cheese whey and the engineered strains also overproduce riboflavin on whey. The riboflavin synthesis on whey was close to that obtained on glucose. To further enhance riboflavin production on whey, the gene of the transcription activator SEF1 was expressed under control of the lactose-induced promoter of the native β-galactosidase gene LAC4. These transformants produced elevated amounts of riboflavin on lactose and especially on whey. The strain with additional overexpression of gene RIB6 involved in conversion of ribulose-5-phosphate to riboflavin precursor had the highest titer of accumulated riboflavin in flasks during cultivation on whey. Activation of riboflavin synthesis was also obtained after overexpression of the GND1 gene that is involved in the synthesis of the riboflavin precursor ribulose-5-phosphate. The best engineered strains accumulated 2.5 g of riboflavin/L on whey supplemented only with (NH4)2SO4 during batch cultivation in bioreactor with high yield (more than 300 mg/g dry cell weight). The use of concentrated whey inhibited growth of wild-type and engineered strains of C. famata, so the mutants tolerant to concentrated whey were isolated. Conclusions Our data show that the waste of dairy industry is a promising substrate for riboflavin production by C. famata. Possibilities for using the engineered strains of C. famata to produce high-value commodity (riboflavin) from whey are discussed. Supplementary Information The online version contains supplementary material available at 10.1186/s12934-022-01888-0.
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Affiliation(s)
- Justyna Ruchala
- Institute of Cell Biology, NAS of Ukraine, Drahomanov St, 14/16, Lviv, 79005, Ukraine.,University of Rzeszow, Zelwerowicza 4, 35-601, Rzeszow, Poland
| | - Yuliia A Andreieva
- Institute of Cell Biology, NAS of Ukraine, Drahomanov St, 14/16, Lviv, 79005, Ukraine.,University of Rzeszow, Zelwerowicza 4, 35-601, Rzeszow, Poland
| | - Andriy O Tsyrulnyk
- Institute of Cell Biology, NAS of Ukraine, Drahomanov St, 14/16, Lviv, 79005, Ukraine
| | - Svitlana M Sobchuk
- Institute of Cell Biology, NAS of Ukraine, Drahomanov St, 14/16, Lviv, 79005, Ukraine
| | - Alicja Najdecka
- University of Rzeszow, Zelwerowicza 4, 35-601, Rzeszow, Poland
| | - Liu Wen
- Institute of Cell Biology, NAS of Ukraine, Drahomanov St, 14/16, Lviv, 79005, Ukraine.,Guizhou Medical University, Guiyang, 550025, Guizhou, China
| | - Yingqian Kang
- Guizhou Medical University, Guiyang, 550025, Guizhou, China
| | - Olena V Dmytruk
- Institute of Cell Biology, NAS of Ukraine, Drahomanov St, 14/16, Lviv, 79005, Ukraine.,University of Rzeszow, Zelwerowicza 4, 35-601, Rzeszow, Poland
| | - Kostyantyn V Dmytruk
- Institute of Cell Biology, NAS of Ukraine, Drahomanov St, 14/16, Lviv, 79005, Ukraine
| | - Dariya V Fedorovych
- Institute of Cell Biology, NAS of Ukraine, Drahomanov St, 14/16, Lviv, 79005, Ukraine.,University of Rzeszow, Zelwerowicza 4, 35-601, Rzeszow, Poland
| | - Andriy A Sibirny
- Institute of Cell Biology, NAS of Ukraine, Drahomanov St, 14/16, Lviv, 79005, Ukraine. .,University of Rzeszow, Zelwerowicza 4, 35-601, Rzeszow, Poland.
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