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España Amórtegui JC, Pekar H, Retrato MDC, Persson M, Karlson B, Bergquist J, Zuberovic-Muratovic A. LC-MS/MS Analysis of Cyanotoxins in Bivalve Mollusks-Method Development, Validation and First Evidence of Occurrence of Nodularin in Mussels ( Mytilus edulis) and Oysters ( Magallana gigas) from the West Coast of Sweden. Toxins (Basel) 2023; 15:toxins15050329. [PMID: 37235362 DOI: 10.3390/toxins15050329] [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: 03/30/2023] [Revised: 05/09/2023] [Accepted: 05/09/2023] [Indexed: 05/28/2023] Open
Abstract
In this paper, an LC-MS/MS method for the simultaneous identification and quantification of cyanotoxins with hydrophilic and lipophilic properties in edible bivalves is presented. The method includes 17 cyanotoxins comprising 13 microcystins (MCs), nodularin (NOD), anatoxin-a (ATX-a), homoanatoxin (h-ATX) and cylindrospermopsin (CYN). A benefit to the presented method is the possibility for the MS detection of MC-LR-[Dha7] and MC-LR-[Asp3] as separately identified and MS-resolved MRM signals, two congeners which were earlier detected together. The performance of the method was evaluated by in-house validation using spiked mussel samples in the quantification range of 3.12-200 µg/kg. The method was found to be linear over the full calibration range for all included cyanotoxins except CYN for which a quadratic regression was used. The method showed limitations for MC-LF (R2 = 0.94), MC-LA (R2 ≤ 0.98) and MC-LW (R2 ≤ 0.98). The recoveries for ATX-a, h-ATX, CYN, NOD, MC-LF and MC-LW were lower than desired (<70%), but stable. Despite the given limitations, the validation results showed that the method was specific and robust for the investigated parameters. The results demonstrate the suitability of the method to be applied as a reliable monitoring tool for the presented group of cyanotoxins, as well as highlight the compromises that need to be included if multi-toxin methods are to be used for the analysis of cyanotoxins with a broader range of chemical properties. Furthermore, the method was used to analyze 13 samples of mussels (Mytilus edulis) and oysters (Magallana gigas) collected in the 2020-2022 summers along the coast of Bohuslän (Sweden). A complementary qualitative analysis for the presence of cyanotoxins in phytoplankton samples collected from marine waters around southern Sweden was performed with the method. Nodularin was identified in all samples and quantified in bivalve samples in the range of 7-397 µg/kg. Toxins produced by cyanobacteria are not included in the European Union regulatory monitoring of bivalves; thus, the results presented in this study can be useful in providing the basis for future work including cyanotoxins within the frame of regulatory monitoring to increase seafood safety.
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Affiliation(s)
- Julio César España Amórtegui
- Science Department, Swedish Food Agency, Box 622, SE-751 26 Uppsala, Sweden
- Chemistry Department, Science Faculty, Universidad Nacional de Colombia, Cr. 45 N° 26-85, Bogotá P.O. Box 111321, Colombia
| | - Heidi Pekar
- Science Department, Swedish Food Agency, Box 622, SE-751 26 Uppsala, Sweden
- Stockholm Water and Waste Company, Bryggerivägen 10, SE-106 36 Stockholm, Sweden
| | - Mark Dennis Chico Retrato
- Department of Chemistry, Biomedical Center, Analytical Chemistry and Neurochemistry, Uppsala University, Box 599, SE-751 24 Uppsala, Sweden
| | - Malin Persson
- Science Department, Swedish Food Agency, Box 622, SE-751 26 Uppsala, Sweden
| | - Bengt Karlson
- Research and Development, Oceanography, Swedish Meteorological and Hydrological Institute, Sven Källfelts Gata 15, SE-426 71 Västra Frölunda, Sweden
| | - Jonas Bergquist
- Department of Chemistry, Biomedical Center, Analytical Chemistry and Neurochemistry, Uppsala University, Box 599, SE-751 24 Uppsala, Sweden
| | - Aida Zuberovic-Muratovic
- Science Department, Swedish Food Agency, Box 622, SE-751 26 Uppsala, Sweden
- Department of Chemistry, Biomedical Center, Analytical Chemistry and Neurochemistry, Uppsala University, Box 599, SE-751 24 Uppsala, Sweden
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Yancey CE, Mathiesen O, Dick GJ. Transcriptionally active nitrogen fixation and biosynthesis of diverse secondary metabolites by Dolichospermum and Aphanizomenon-like Cyanobacteria in western Lake Erie Microcystis blooms. HARMFUL ALGAE 2023; 124:102408. [PMID: 37164563 DOI: 10.1016/j.hal.2023.102408] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 02/15/2023] [Accepted: 02/17/2023] [Indexed: 05/12/2023]
Abstract
Cyanobacterial harmful algal blooms (cyanoHABs) in the western basin of Lake Erie are dominated by microcystin producing Microcystis spp., but other cyanobacterial taxa that coexist in these communities may play important roles in production of toxins and shaping bloom dynamics and community function. In this study, we used metagenomic and metatranscriptomic data from the 2014 western Lake Erie cyanoHAB to explore the genetic diversity and biosynthetic potential of cyanobacteria belonging to the Anabaena, Dolichospermum, Aphanizomenon (ADA) clade. We reconstructed two near-complete metagenome-assembled genomes from two distinct ADA clade species, each containing biosynthetic gene clusters that encode novel and known secondary metabolites, including those with toxic and/or known taste and odor properties, that were transcriptionally active. However, neither ADA metagenome-assembled genome contained genes encoding guanitoxins, anatoxins, or saxitoxins, which are known to be produced by ADA. The ADA cyanobacteria accounted for most of the metagenomic and metatranscriptomic reads from nitrogen fixation genes, suggesting they were the dominant N-fixers at the times and stations sampled. Despite their relatively low abundance, our results highlight the possibility that ADA taxa could influence the water quality and ecology of Microcystis blooms, although the extent of these impacts remains to be quantified.
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Affiliation(s)
- Colleen E Yancey
- Department of Earth and Environmental Sciences, University of Michigan, Ann Arbor, 48109, USA
| | - Olivia Mathiesen
- Department of Earth and Environmental Sciences, University of Michigan, Ann Arbor, 48109, USA
| | - Gregory J Dick
- Department of Earth and Environmental Sciences, University of Michigan, Ann Arbor, 48109, USA; Cooperative Institute for Great Lakes Research (CIGLR), University of Michigan, 4840 South State Road, Ann Arbor, MI 48108 USA.
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Detection and Characterization of Nodularin by Using Label-Free Surface-Enhanced Spectroscopic Techniques. Int J Mol Sci 2022; 23:ijms232415741. [PMID: 36555384 PMCID: PMC9779585 DOI: 10.3390/ijms232415741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/03/2022] [Accepted: 12/09/2022] [Indexed: 12/14/2022] Open
Abstract
Nodularin (NOD) is a potent toxin produced by Nodularia spumigena cyanobacteria. Usually, NOD co-exists with other microcystins in environmental waters, a class of cyanotoxins secreted by certain cyanobacteria species, which makes identification difficult in the case of mixed toxins. Herein we report a complete theoretical DFT-vibrational Raman characterization of NOD along with the experimental drop-coating deposition Raman (DCDR) technique. In addition, we used the vibrational characterization to probe SERS analysis of NOD using colloidal silver nanoparticles (AgNPs), commercial nanopatterned substrates with periodic inverted pyramids (KlariteTM substrate), hydrophobic Tienta® SpecTrimTM slides, and in-house fabricated periodic nanotrenches by nanoimprint lithography (NIL). The 532 nm excitation source provided more well-defined bands even at LOD levels, as well as the best performance in terms of SERS intensity. This was reflected by the results obtained with the KlariteTM substrate and the silver-based colloidal system, which were the most promising detection approaches, providing the lowest limits of detection. A detection limit of 8.4 × 10-8 M was achieved for NOD in solution by using AgNPs. Theoretical computation of the complex vibrational modes of NOD was used for the first time to unambiguously assign all the specific vibrational Raman bands.
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Phan CS, Mehjabin JJ, Anas ARJ, Hayasaka M, Onoki R, Wang J, Umezawa T, Washio K, Morikawa M, Okino T. Nostosin G and Spiroidesin B from the Cyanobacterium Dolichospermum sp. NIES-1697. JOURNAL OF NATURAL PRODUCTS 2022; 85:2000-2005. [PMID: 35948062 DOI: 10.1021/acs.jnatprod.2c00382] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Chemical investigation of the cyanobacterium Dolichospermum sp. NIES-1697 afforded nostosin G (1), a linear tripeptide, spiroidesin B (2), and two known compounds, anabaenopeptins I (3) and J (4). Planar structures and absolute configurations for 1 and 2 were determined by 2D NMR, HRMS, Marfey's methodology, chiral-phase HPLC, and enzymatic degradation. Nostosin G (1) is a unique example of a linear peptide containing three subunits, 4-hydroxyphenyllactic acid (Hpla), homotyrosine (Hty), and argininal, with potent trypsin inhibitory properties. The biosynthetic gene clusters for nostosin G (1) and spiroidesin B (2) were investigated based on the genome sequence of Dolichospermum sp. NIES-1697.
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Courtier A, Potheret D, Giannoni P. Environmental bacteria as triggers to brain disease: Possible mechanisms of toxicity and associated human risk. Life Sci 2022; 304:120689. [DOI: 10.1016/j.lfs.2022.120689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 05/11/2022] [Accepted: 06/01/2022] [Indexed: 11/24/2022]
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Cyanotoxins uptake and accumulation in crops: Phytotoxicity and implications on human health. Toxicon 2022; 211:21-35. [DOI: 10.1016/j.toxicon.2022.03.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 03/03/2022] [Accepted: 03/07/2022] [Indexed: 12/16/2022]
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Heinilä LMP, Fewer DP, Jokela JK, Wahlsten M, Ouyang X, Permi P, Jortikka A, Sivonen K. The structure and biosynthesis of heinamides A1-A3 and B1-B5, antifungal members of the laxaphycin lipopeptide family. Org Biomol Chem 2021; 19:5577-5588. [PMID: 34085692 DOI: 10.1039/d1ob00772f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Laxaphycins are a family of cyclic lipopeptides with synergistic antifungal and antiproliferative activities. They are produced by multiple cyanobacterial genera and comprise two sets of structurally unrelated 11- and 12-residue macrocyclic lipopeptides. Here, we report the discovery of new antifungal laxaphycins from Nostoc sp. UHCC 0702, which we name heinamides, through antimicrobial bioactivity screening. We characterized the chemical structures of eight heinamide structural variants A1-A3 and B1-B5. These variants contain the rare non-proteinogenic amino acids 3-hydroxy-4-methylproline, 4-hydroxyproline, 3-hydroxy-d-leucine, dehydrobutyrine, 5-hydroxyl β-amino octanoic acid, and O-carbamoyl-homoserine. We obtained an 8.6-Mb complete genome sequence from Nostoc sp. UHCC 0702 and identified the 93 kb heinamide biosynthetic gene cluster. The structurally distinct heinamides A1-A3 and B1-B5 variants are synthesized using an unusual branching biosynthetic pathway. The heinamide biosynthetic pathway also encodes several enzymes that supply non-proteinogenic amino acids to the heinamide synthetase. Through heterologous expression, we showed that (2S,4R)-4-hydroxy-l-proline is supplied through the action of a novel enzyme LxaN, which hydroxylates l-proline. 11- and 12-residue heinamides have the characteristic synergistic activity of laxaphycins against Aspergillus flavus FBCC 2467. Structural and genetic information of heinamides may prove useful in future discovery of natural products and drug development.
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Affiliation(s)
| | - David Peter Fewer
- Department of Microbiology, Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland.
| | - Jouni Kalevi Jokela
- Department of Microbiology, Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland.
| | - Matti Wahlsten
- Department of Microbiology, Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland.
| | - Xiaodan Ouyang
- Department of Microbiology, Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland.
| | - Perttu Permi
- Department of Chemistry, University of Jyväskylä, Jyväskylä, Finland and Department of Biological and Environmental Science, Nanoscience Center, University of Jyväskylä, Jyväskylä, Finland
| | - Anna Jortikka
- Department of Microbiology, Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland.
| | - Kaarina Sivonen
- Department of Microbiology, Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland.
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Genome Reduction and Secondary Metabolism of the Marine Sponge-Associated Cyanobacterium Leptothoe. Mar Drugs 2021; 19:md19060298. [PMID: 34073758 PMCID: PMC8225149 DOI: 10.3390/md19060298] [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: 04/30/2021] [Revised: 05/20/2021] [Accepted: 05/21/2021] [Indexed: 11/16/2022] Open
Abstract
Sponges form symbiotic relationships with diverse and abundant microbial communities. Cyanobacteria are among the most important members of the microbial communities that are associated with sponges. Here, we performed a genus-wide comparative genomic analysis of the newly described marine benthic cyanobacterial genus Leptothoe (Synechococcales). We obtained draft genomes from Le. kymatousa TAU-MAC 1615 and Le. spongobia TAU-MAC 1115, isolated from marine sponges. We identified five additional Leptothoe genomes, host-associated or free-living, using a phylogenomic approach, and the comparison of all genomes showed that the sponge-associated strains display features of a symbiotic lifestyle. Le. kymatousa and Le. spongobia have undergone genome reduction; they harbored considerably fewer genes encoding for (i) cofactors, vitamins, prosthetic groups, pigments, proteins, and amino acid biosynthesis; (ii) DNA repair; (iii) antioxidant enzymes; and (iv) biosynthesis of capsular and extracellular polysaccharides. They have also lost several genes related to chemotaxis and motility. Eukaryotic-like proteins, such as ankyrin repeats, playing important roles in sponge-symbiont interactions, were identified in sponge-associated Leptothoe genomes. The sponge-associated Leptothoe stains harbored biosynthetic gene clusters encoding novel natural products despite genome reduction. Comparisons of the biosynthetic capacities of Leptothoe with chemically rich cyanobacteria revealed that Leptothoe is another promising marine cyanobacterium for the biosynthesis of novel natural products.
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Algal Toxic Compounds and Their Aeroterrestrial, Airborne and other Extremophilic Producers with Attention to Soil and Plant Contamination: A Review. Toxins (Basel) 2021; 13:toxins13050322. [PMID: 33946968 PMCID: PMC8145420 DOI: 10.3390/toxins13050322] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 04/27/2021] [Accepted: 04/27/2021] [Indexed: 12/16/2022] Open
Abstract
The review summarizes the available knowledge on toxins and their producers from rather disparate algal assemblages of aeroterrestrial, airborne and other versatile extreme environments (hot springs, deserts, ice, snow, caves, etc.) and on phycotoxins as contaminants of emergent concern in soil and plants. There is a growing body of evidence that algal toxins and their producers occur in all general types of extreme habitats, and cyanobacteria/cyanoprokaryotes dominate in most of them. Altogether, 55 toxigenic algal genera (47 cyanoprokaryotes) were enlisted, and our analysis showed that besides the “standard” toxins, routinely known from different waterbodies (microcystins, nodularins, anatoxins, saxitoxins, cylindrospermopsins, BMAA, etc.), they can produce some specific toxic compounds. Whether the toxic biomolecules are related with the harsh conditions on which algae have to thrive and what is their functional role may be answered by future studies. Therefore, we outline the gaps in knowledge and provide ideas for further research, considering, from one side, the health risk from phycotoxins on the background of the global warming and eutrophication and, from the other side, the current surge of interest which phycotoxins provoke due to their potential as novel compounds in medicine, pharmacy, cosmetics, bioremediation, agriculture and all aspects of biotechnological implications in human life.
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10
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Ivanov D, Yaneva G, Potoroko I, Ivanova DG. Contribution of Cyanotoxins to the Ecotoxicological Role of Lichens. Toxins (Basel) 2021; 13:321. [PMID: 33946807 PMCID: PMC8146415 DOI: 10.3390/toxins13050321] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 04/22/2021] [Accepted: 04/27/2021] [Indexed: 12/02/2022] Open
Abstract
The fascinating world of lichens draws the attention of the researchers because of the numerous properties of lichens used traditionally and, in modern times, as a raw material for medicines and in the perfumery industry, for food and spices, for fodder, as dyes, and for other various purposes all over the world. However, lichens being widespread symbiotic entities between fungi and photosynthetic partners may acquire toxic features due to either the fungi, algae, or cyano-procaryotes producing toxins. By this way, several common lichens acquire toxic features. In this survey, recent data about the ecology, phytogenetics, and biology of some lichens with respect to the associated toxin-producing cyanoprokaryotes in different habitats around the world are discussed. Special attention is paid to the common toxins, called microcystin and nodularin, produced mainly by the Nostoc species. The effective application of a series of modern research methods to approach the issue of lichen toxicity as contributed by the cyanophotobiont partner is emphasized.
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Affiliation(s)
- Dobri Ivanov
- Department of Biochemistry, Molecular Medicine and Nutrigenomics, Faculty of Pharmacy, Medical University “Prof. Dr. Paraskev Stoyanov”, 9002 Varna, Bulgaria; (G.Y.); (D.G.I.)
| | - Galina Yaneva
- Department of Biochemistry, Molecular Medicine and Nutrigenomics, Faculty of Pharmacy, Medical University “Prof. Dr. Paraskev Stoyanov”, 9002 Varna, Bulgaria; (G.Y.); (D.G.I.)
| | - Irina Potoroko
- Department of Food and Biotechnologies, School of Medical Biology, South Ural State University, 454080 Chelyabinsk, Russia;
| | - Diana G. Ivanova
- Department of Biochemistry, Molecular Medicine and Nutrigenomics, Faculty of Pharmacy, Medical University “Prof. Dr. Paraskev Stoyanov”, 9002 Varna, Bulgaria; (G.Y.); (D.G.I.)
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11
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Jacinavicius FR, Geraldes V, Crnkovic CM, Delbaje E, Fiore MF, Pinto E. Effect of ultraviolet radiation on the metabolomic profiles of potentially toxic cyanobacteria. FEMS Microbiol Ecol 2021; 97:6006873. [PMID: 33242088 DOI: 10.1093/femsec/fiaa243] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Accepted: 11/24/2020] [Indexed: 11/13/2022] Open
Abstract
Interactions between climate change and ultraviolet radiation (UVR) have a substantial impact on aquatic ecosystems, especially on photosynthetic organisms. To counteract the damaging effects of UVR, cyanobacteria developed adaptive strategies such as the biosynthesis of secondary metabolites. This study aimed to evaluate the effects of UVR on the metabolomic profiles of potentially toxic cyanobacteria. Twelve strains were irradiated with ultraviolet A and ultraviolet B radiation and parabolic aluminized reflector lamps for 3 days, followed by liquid chromatography-tandem mass spectometry (LC-MS/MS) analysis to assess changes in metabolomic profiles. Matrices were used to generate principal component analysis biplots, and molecular networks were obtained using the Global Natural Products platform. Most strains showed significant changes in their metabolomic profiles after UVR exposure. On average, 7% of MS features were shown to be exclusive to metabolomic profiles before UVR exposure, while 9% were unique to metabolomic profiles after UVR exposure. The identified compounds included aeruginosins, spumigins, cyanopeptolins, microginins, namalides, pseudospumigins, anabaenopeptins, mycosporine-like amino acids, nodularins and microcystins. Data showed that cyanobacteria display broad metabolic plasticity upon UVR exposure, including the synthesis and differential expression of a variety of secondary metabolites. This could result in a competitive advantage, supporting cyanobacterial blooms under various UVR light exposures.
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Affiliation(s)
| | - Vanessa Geraldes
- University of São Paulo, School of Pharmaceutical Sciences, São Paulo-SP, Brazil
| | - Camila M Crnkovic
- University of São Paulo, School of Pharmaceutical Sciences, São Paulo-SP, Brazil
| | - Endrews Delbaje
- University of São Paulo, Centre for Nuclear Energy in Agriculture, Piracicaba-SP, Brazil
| | - Marli F Fiore
- University of São Paulo, Centre for Nuclear Energy in Agriculture, Piracicaba-SP, Brazil
| | - Ernani Pinto
- University of São Paulo, School of Pharmaceutical Sciences, São Paulo-SP, Brazil.,University of São Paulo, Centre for Nuclear Energy in Agriculture, Piracicaba-SP, Brazil
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Berthold DE, Lefler FW, Huang IS, Abdulla H, Zimba PV, Laughinghouse HD. Iningainema tapete sp. nov. (Scytonemataceae, Cyanobacteria) from greenhouses in central Florida (USA) produces two types of nodularin with biosynthetic potential for microcystin-LR and anabaenopeptin production. HARMFUL ALGAE 2021; 101:101969. [PMID: 33526185 DOI: 10.1016/j.hal.2020.101969] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 12/10/2020] [Accepted: 12/12/2020] [Indexed: 06/12/2023]
Abstract
Iningainema is a recently described genus of heterocytous, false-branching cyanobacteria originally described from Australia. In this work, we present Iningainema tapete sp. nov., isolated from subaerial and terrestrial environments in central Florida (USA). In comparison to the sister species, our novel cyanobacterium produces nodularin-R (NOD-R) and a methylated isoform [MeAdda3] NOD previously not reported within this genus; in addition to possessing the biosynthetic gene clusters for microcystin and anabaenopeptins production. Nodularin accumulation by this cyanobacterium exceeded 500 µg g-1 dry weight in cultures grown in nitrogen-depleted media. Such elevated toxin concentrations are alarming as the cyanobacterium was isolated from a food production greenhouse and poses a potential risk for food products and for workforce exposure. Using morphology, 16S rRNA gene phylogeny, and 16S-23S rRNA internal transcribed spacer (ITS) secondary structure, coupled with toxin detection and toxin gene presence, we provide evidence for the establishment of a novel toxic species of cyanobacteria, Iningainema tapete.
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Affiliation(s)
- David E Berthold
- Agronomy Department, Fort Lauderdale Research and Education Center, University of Florida / IFAS, Davie, FL 33314, United States
| | - Forrest W Lefler
- Agronomy Department, Fort Lauderdale Research and Education Center, University of Florida / IFAS, Davie, FL 33314, United States
| | - I-Shuo Huang
- Department of Aquatic Health Sciences, Virginia Institute of Marine Science, Gloucester Point, VA 23062, United States
| | - Hussain Abdulla
- Department of Physical and Environmental Sciences, Texas A&M University-Corpus Christi, Corpus Christi, TX 78412, United States
| | - Paul V Zimba
- Department of Life Sciences and Center for Coastal Studies, Texas A&M University-Corpus Christi, Corpus Christi, TX 78412, United States
| | - H Dail Laughinghouse
- Agronomy Department, Fort Lauderdale Research and Education Center, University of Florida / IFAS, Davie, FL 33314, United States.
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Carpine R, Sieber S. Antibacterial and antiviral metabolites from cyanobacteria: Their application and their impact on human health. CURRENT RESEARCH IN BIOTECHNOLOGY 2021. [DOI: 10.1016/j.crbiot.2021.03.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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Berlinck RGS, Bernardi DI, Fill T, Fernandes AAG, Jurberg ID. The chemistry and biology of guanidine secondary metabolites. Nat Prod Rep 2020; 38:586-667. [PMID: 33021301 DOI: 10.1039/d0np00051e] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Covering: 2017-2019Guanidine natural products isolated from microorganisms, marine invertebrates and terrestrial plants, amphibians and spiders, represented by non-ribosomal peptides, guanidine-bearing polyketides, alkaloids, terpenoids and shikimic acid derived, are the subject of this review. The topics include the discovery of new metabolites, total synthesis of natural guanidine compounds, biological activity and mechanism-of-action, biosynthesis and ecological functions.
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Affiliation(s)
- Roberto G S Berlinck
- Instituto de Química de São Carlos, Universidade de São Paulo, CP 780, CEP 13560-970, São Carlos, SP, Brazil.
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Wood SA, Kelly L, Bouma-Gregson K, Humbert JF, Laughinghouse HD, Lazorchak J, McAllister T, McQueen A, Pokrzywinski K, Puddick J, Quiblier C, Reitz LA, Ryan K, Vadeboncoeur Y, Zastepa A, Davis TW. Toxic benthic freshwater cyanobacterial proliferations: Challenges and solutions for enhancing knowledge and improving monitoring and mitigation. FRESHWATER BIOLOGY 2020; 65:1824-1842. [PMID: 34970014 PMCID: PMC8715960 DOI: 10.1111/fwb.13532] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
1. This review summarises knowledge on the ecology, toxin production, and impacts of toxic freshwater benthic cyanobacterial proliferations. It documents monitoring, management, and sampling strategies, and explores mitigation options. 2. Toxic proliferations of freshwater benthic cyanobacteria (taxa that grow attached to substrates) occur in streams, rivers, lakes, and thermal and meltwater ponds, and have been reported in 19 countries. Anatoxin- and microcystin-containing mats are most commonly reported (eight and 10 countries, respectively). 3. Studies exploring factors that promote toxic benthic cyanobacterial proliferations are limited to a few species and habitats. There is a hierarchy of importance in environmental and biological factors that regulate proliferations with variables such as flow (rivers), fine sediment deposition, nutrients, associated microbes, and grazing identified as key drivers. Regulating factors differ among colonisation, expansion, and dispersal phases. 4. New -omics-based approaches are providing novel insights into the physiological attributes of benthic cyanobacteria and the role of associated microorganisms in facilitating their proliferation. 5. Proliferations are commonly comprised of both toxic and non-toxic strains, and the relative proportion of these is the key factor contributing to the overall toxin content of each mat. 6. While these events are becoming more commonly reported globally, we currently lack standardised approaches to detect, monitor, and manage this emerging health issue. To solve these critical gaps, global collaborations are needed to facilitate the rapid transfer of knowledge and promote the development of standardised techniques that can be applied to diverse habitats and species, and ultimately lead to improved management.
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Affiliation(s)
| | | | - Keith Bouma-Gregson
- Office of Information Management and Analysis, California State Water Resources Control Board, Sacramento, California, United States of America
| | | | - H Dail Laughinghouse
- Fort Lauderdale Research and Education Center, University of Florida, Florida, USA
| | - James Lazorchak
- U.S. Environmental Protection Agency, Office of Research and Development, Center for Monitoring and Modeling, Cincinnati, Ohio, United States of America
| | - Tara McAllister
- Te Pūnaha Matatini Centre of Research Excellence for Complex Systems, University of Auckland, Auckland, New Zealand
| | - Andrew McQueen
- Environmental Risk Assessment Branch, US Army Corps of Engineers, Engineering Research & Development Center, Vicksburg, Mississippi, United States of America
| | - Katyee Pokrzywinski
- Environmental Risk Assessment Branch, US Army Corps of Engineers, Engineering Research & Development Center, Vicksburg, Mississippi, United States of America
| | | | | | - Laura A Reitz
- Department of Biological Sciences, Bowling Green State University, Bowling Green, Ohio, United States of America
| | - Ken Ryan
- School of Biological Sciences, Victoria University of Wellington, New Zealand
| | - Yvonne Vadeboncoeur
- Department of Biological Sciences, Wright State University, Ohio, United States of America
| | - Arthur Zastepa
- Environment and Climate Change Canada, Canada Centre for Inland Waters, Ontario, Canada
| | - Timothy W Davis
- Department of Biological Sciences, Bowling Green State University, Bowling Green, Ohio, United States of America
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16
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Heinilä LMP, Fewer DP, Jokela JK, Wahlsten M, Jortikka A, Sivonen K. Shared PKS Module in Biosynthesis of Synergistic Laxaphycins. Front Microbiol 2020; 11:578878. [PMID: 33042096 PMCID: PMC7524897 DOI: 10.3389/fmicb.2020.578878] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 08/17/2020] [Indexed: 12/13/2022] Open
Abstract
Cyanobacteria produce a wide range of lipopeptides that exhibit potent membrane-disrupting activities. Laxaphycins consist of two families of structurally distinct macrocyclic lipopeptides that act in a synergistic manner to produce antifungal and antiproliferative activities. Laxaphycins are produced by range of cyanobacteria but their biosynthetic origins remain unclear. Here, we identified the biosynthetic pathways responsible for the biosynthesis of the laxaphycins produced by Scytonema hofmannii PCC 7110. We show that these laxaphycins, called scytocyclamides, are produced by this cyanobacterium and are encoded in a single biosynthetic gene cluster with shared polyketide synthase enzymes initiating two distinct non-ribosomal peptide synthetase pathways. The unusual mechanism of shared enzymes synthesizing two distinct types of products may aid future research in identifying and expressing natural product biosynthetic pathways and in expanding the known biosynthetic logic of this important family of natural products.
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Affiliation(s)
| | - David P Fewer
- Department of Microbiology, Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland
| | - Jouni Kalevi Jokela
- Department of Microbiology, Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland
| | - Matti Wahlsten
- Department of Microbiology, Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland
| | - Anna Jortikka
- Department of Microbiology, Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland
| | - Kaarina Sivonen
- Department of Microbiology, Faculty of Agriculture and Forestry, University of Helsinki, Helsinki, Finland
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17
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Konkel R, Toruńska-Sitarz A, Cegłowska M, Ežerinskis Ž, Šapolaitė J, Mažeika J, Mazur-Marzec H. Blooms of Toxic Cyanobacterium Nodularia spumigena in Norwegian Fjords During Holocene Warm Periods. Toxins (Basel) 2020; 12:toxins12040257. [PMID: 32326551 PMCID: PMC7232221 DOI: 10.3390/toxins12040257] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 04/03/2020] [Accepted: 04/13/2020] [Indexed: 01/08/2023] Open
Abstract
In paleoecological studies, molecular markers are being used increasingly often to reconstruct community structures, environmental conditions and ecosystem changes. In this work, nodularin, anabaenopeptins and selected DNA sequences were applied as Nodularia spumigena markers to reconstruct the history of the cyanobacterium in the Norwegian fjords. For the purpose of this study, three sediment cores collected in Oslofjorden, Trondheimsfjorden and Balsfjorden were analyzed. The lack of nodularin in most recent sediments is consistent with the fact that only one report on the sporadic occurrence and low amounts of the cyanobacterium in Norwegian Fjords in 1976 has been published. However, analyses of species-specific chemical markers in deep sediments showed that thousands of years ago, N. spumigena constituted an important component of the phytoplankton community. The content of the markers in the cores indicated that the biomass of the cyanobacterium increased during the warmer Holocene periods. The analyses of genetic markers were less conclusive; they showed the occurrence of microcystin/nodularin producing cyanobacteria of Nostocales order, but they did not allow for the identification of the organisms at a species level.
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Affiliation(s)
- Robert Konkel
- University of Gdańsk, Faculty of Oceanography and Geography, Division of Marine Biotechnology, Marszałka J. Piłsudskiego 46, PL-81-378 Gdynia, Poland; (R.K.); (A.T.-S.)
| | - Anna Toruńska-Sitarz
- University of Gdańsk, Faculty of Oceanography and Geography, Division of Marine Biotechnology, Marszałka J. Piłsudskiego 46, PL-81-378 Gdynia, Poland; (R.K.); (A.T.-S.)
| | - Marta Cegłowska
- Institute of Oceanology, Polish Academy of Science, Powstańców Warszawy 55, PL-81-712 Sopot, Poland;
| | - Žilvinas Ežerinskis
- Mass Spectrometry Laboratory, Center for Physical Sciences and Technology, LT-10257 Vilnius, Lithuania; (Ž.E.); (J.Š.)
| | - Justina Šapolaitė
- Mass Spectrometry Laboratory, Center for Physical Sciences and Technology, LT-10257 Vilnius, Lithuania; (Ž.E.); (J.Š.)
| | - Jonas Mažeika
- Laboratory of nuclear geophysics and radioecology, Nature research Centre Akademijos Str. 2, LT-08412 Vilnius, Lithuania;
| | - Hanna Mazur-Marzec
- University of Gdańsk, Faculty of Oceanography and Geography, Division of Marine Biotechnology, Marszałka J. Piłsudskiego 46, PL-81-378 Gdynia, Poland; (R.K.); (A.T.-S.)
- Correspondence: ; Tel.: +48-585-236-621
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18
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Kossack R, Breinlinger S, Nguyen T, Moschny J, Straetener J, Berscheid A, Brötz-Oesterhelt H, Enke H, Schirmeister T, Niedermeyer THJ. Nostotrebin 6 Related Cyclopentenediones and δ-Lactones with Broad Activity Spectrum Isolated from the Cultivation Medium of the Cyanobacterium Nostoc sp. CBT1153. JOURNAL OF NATURAL PRODUCTS 2020; 83:392-400. [PMID: 31977209 DOI: 10.1021/acs.jnatprod.9b00885] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Cyanobacteria are an interesting source of biologically active natural products, especially chemically diverse and potent protease inhibitors. On our search for inhibitors of the trypanosomal cysteine protease rhodesain, we identified the homodimeric cyclopentenedione (CPD) nostotrebin 6 (1) and new related monomeric, dimeric, and higher oligomeric compounds as the active substances in the medium extract of Nostoc sp. CBT1153. The oligomeric compounds are composed of two core monomeric structures, a trisubstituted CPD or a trisubstituted unsaturated δ-lactone. Nostotrebin 6 thus far has been the only known cyanobacterial CPD. It has been found to be active in a broad variety of assays, indicating that it might be a pan-assay interference compound (PAIN). Thus, we compared the antibacterial and cytotoxic activities as well as the rhodesain inhibition of selected compounds. Because a compound with a δ-lactone instead of a CPD core structure was equally active as nostotrebin 6, the bioactivities of these compounds seem to be based on the phenolic substructures rather than the CPD moiety. While the dimers were roughly equally potent, the monomer displayed slightly weaker activity, suggesting that the compounds show unspecific activity depending upon the number of free phenolic hydroxy groups per molecule.
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Affiliation(s)
- Ronja Kossack
- Department of Pharmaceutical Biology/Pharmacognosy, Institute of Pharmacy , University of Halle-Wittenberg , 06120 Halle (Saale) , Germany
| | - Steffen Breinlinger
- Department of Pharmaceutical Biology/Pharmacognosy, Institute of Pharmacy , University of Halle-Wittenberg , 06120 Halle (Saale) , Germany
| | - Trang Nguyen
- Department of Microbiology/Biotechnology, Interfaculty Institute for Microbiology and Infection Medicine (IMIT) , University of Tübingen , 72076 Tübingen , Germany
| | - Julia Moschny
- Department of Pharmaceutical Biology/Pharmacognosy, Institute of Pharmacy , University of Halle-Wittenberg , 06120 Halle (Saale) , Germany
| | - Jan Straetener
- Department of Microbial Bioactive Compounds, Interfaculty Institute for Microbiology and Infection Medicine (IMIT) , University of Tübingen , 72076 Tübingen , Germany
- German Center for Infection Research (DZIF), Partner Site Tübingen , 72076 Tübingen , Germany
| | - Anne Berscheid
- Department of Microbial Bioactive Compounds, Interfaculty Institute for Microbiology and Infection Medicine (IMIT) , University of Tübingen , 72076 Tübingen , Germany
- German Center for Infection Research (DZIF), Partner Site Tübingen , 72076 Tübingen , Germany
| | - Heike Brötz-Oesterhelt
- Department of Microbial Bioactive Compounds, Interfaculty Institute for Microbiology and Infection Medicine (IMIT) , University of Tübingen , 72076 Tübingen , Germany
- German Center for Infection Research (DZIF), Partner Site Tübingen , 72076 Tübingen , Germany
| | - Heike Enke
- Cyano Biotech GmbH , 12489 Berlin , Germany
| | - Tanja Schirmeister
- Institute of Pharmacy and Biochemistry , University of Mainz , 55128 Mainz , Germany
| | - Timo H J Niedermeyer
- Department of Pharmaceutical Biology/Pharmacognosy, Institute of Pharmacy , University of Halle-Wittenberg , 06120 Halle (Saale) , Germany
- German Center for Infection Research (DZIF), Partner Site Tübingen , 72076 Tübingen , Germany
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19
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Shishido TK, Popin RV, Jokela J, Wahlsten M, Fiore MF, Fewer DP, Herfindal L, Sivonen K. Dereplication of Natural Products with Antimicrobial and Anticancer Activity from Brazilian Cyanobacteria. Toxins (Basel) 2019; 12:E12. [PMID: 31878347 PMCID: PMC7020483 DOI: 10.3390/toxins12010012] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 12/20/2019] [Accepted: 12/21/2019] [Indexed: 12/19/2022] Open
Abstract
Cyanobacteria are photosynthetic organisms that produce a large diversity of natural products with interesting bioactivities for biotechnological and pharmaceutical applications. Cyanobacterial extracts exhibit toxicity towards other microorganisms and cancer cells and, therefore, represent a source of potentially novel natural products for drug discovery. We tested 62 cyanobacterial strains isolated from various Brazilian biomes for antileukemic and antimicrobial activities. Extracts from 39 strains induced selective apoptosis in acute myeloid leukemia (AML) cancer cell lines. Five of these extracts also exhibited antifungal and antibacterial activities. Chemical and dereplication analyses revealed the production of nine known natural products. Natural products possibly responsible for the observed bioactivities and five unknown, chemically related chlorinated compounds present only in Brazilian cyanobacteria were illustrated in a molecular network. Our results provide new information on the vast biosynthetic potential of cyanobacteria isolated from Brazilian environments.
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Affiliation(s)
- Tania Keiko Shishido
- Department of Microbiology, University of Helsinki, Viikinkaari 9, FI-00014 Helsinki, Finland; (T.K.S.); (R.V.P.); (J.J.); (M.W.); (D.P.F.)
- Institute of Biotechnology, University of Helsinki, Viikinkaari 5D, FI-00014 Helsinki, Finland
| | - Rafael Vicentini Popin
- Department of Microbiology, University of Helsinki, Viikinkaari 9, FI-00014 Helsinki, Finland; (T.K.S.); (R.V.P.); (J.J.); (M.W.); (D.P.F.)
| | - Jouni Jokela
- Department of Microbiology, University of Helsinki, Viikinkaari 9, FI-00014 Helsinki, Finland; (T.K.S.); (R.V.P.); (J.J.); (M.W.); (D.P.F.)
| | - Matti Wahlsten
- Department of Microbiology, University of Helsinki, Viikinkaari 9, FI-00014 Helsinki, Finland; (T.K.S.); (R.V.P.); (J.J.); (M.W.); (D.P.F.)
| | - Marli Fatima Fiore
- Center for Nuclear Energy in Agriculture, University of São Paulo, Avenida Centenário 303, 13400-970 Piracicaba, São Paulo, Brazil;
| | - David P. Fewer
- Department of Microbiology, University of Helsinki, Viikinkaari 9, FI-00014 Helsinki, Finland; (T.K.S.); (R.V.P.); (J.J.); (M.W.); (D.P.F.)
| | - Lars Herfindal
- Centre for Pharmacy, Department of Clinical Science, University of Bergen, P.O. Box 7804, 5020 Bergen, Norway;
| | - Kaarina Sivonen
- Department of Microbiology, University of Helsinki, Viikinkaari 9, FI-00014 Helsinki, Finland; (T.K.S.); (R.V.P.); (J.J.); (M.W.); (D.P.F.)
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20
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Henao E, Rzymski P, Waters MN. A Review on the Study of Cyanotoxins in Paleolimnological Research: Current Knowledge and Future Needs. Toxins (Basel) 2019; 12:E6. [PMID: 31861931 PMCID: PMC7020453 DOI: 10.3390/toxins12010006] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 12/17/2019] [Accepted: 12/18/2019] [Indexed: 01/27/2023] Open
Abstract
Cyanobacterial metabolites are increasingly studied, in regards to their biosynthesis, ecological role, toxicity, and potential biomedical applications. However, the history of cyanotoxins prior to the last few decades is virtually unknown. Only a few paleolimnological studies have been undertaken to date, and these have focused exclusively on microcystins and cylindrospermopsins, both successfully identified in lake sediments up to 200 and 4700 years old, respectively. In this paper, we review direct extraction, quantification, and application of cyanotoxins in sediment cores, and put forward future research prospects in this field. Cyanobacterial toxin research is also compared to other paleo-cyanobacteria tools, such as sedimentary pigments, akinetes, and ancient DNA isolation, to identify the role of each tool in reproducing the history of cyanobacteria. Such investigations may also be beneficial for further elucidation of the biological role of cyanotoxins, particularly if coupled with analyses of other abiotic and biotic sedimentary features. In addition, we identify current limitations as well as future directions for applications in the field of paleolimnological studies on cyanotoxins.
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Affiliation(s)
- Eliana Henao
- Department of Biology, Universidad del Valle, 100-00 Cali, Colombia
| | - Piotr Rzymski
- Department of Environmental Medicine, Poznan University of Medical Sciences, 60-806 Poznan, Poland
| | - Matthew N. Waters
- Department of Crop, Soil and Environmental Sciences, Auburn University, Funchess Hall, AL 36849, USA
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21
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Bioactive Peptides Produced by Cyanobacteria of the Genus Nostoc: A Review. Mar Drugs 2019; 17:md17100561. [PMID: 31569531 PMCID: PMC6835634 DOI: 10.3390/md17100561] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 09/24/2019] [Accepted: 09/27/2019] [Indexed: 11/17/2022] Open
Abstract
Cyanobacteria of the genus Nostoc are widespread in all kinds of habitats. They occur in a free-living state or in association with other organisms. Members of this genus belong to prolific producers of bioactive metabolites, some of which have been recognized as potential therapeutic agents. Of these, peptides and peptide-like structures show the most promising properties and are of a particular interest for both research laboratories and pharmaceutical companies. Nostoc is a sole source of some lead compounds such as cytotoxic cryptophycins, antiviral cyanovirin-N, or the antitoxic nostocyclopeptides. Nostoc also produces the same bioactive peptides as other cyanobacterial genera, but they frequently have some unique modifications in the structure. This includes hepatotoxic microcystins and potent proteases inhibitors such as cyanopeptolins, anabaenopeptins, and microginins. In this review, we described the most studied peptides produced by Nostoc, focusing especially on the structure, the activity, and a potential application of the compounds.
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22
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The Diversity of Cyanobacterial Toxins on Structural Characterization, Distribution and Identification: A Systematic Review. Toxins (Basel) 2019; 11:toxins11090530. [PMID: 31547379 PMCID: PMC6784007 DOI: 10.3390/toxins11090530] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 09/06/2019] [Accepted: 09/09/2019] [Indexed: 11/19/2022] Open
Abstract
The widespread distribution of cyanobacteria in the aquatic environment is increasing the risk of water pollution caused by cyanotoxins, which poses a serious threat to human health. However, the structural characterization, distribution and identification techniques of cyanotoxins have not been comprehensively reviewed in previous studies. This paper aims to elaborate the existing information systematically on the diversity of cyanotoxins to identify valuable research avenues. According to the chemical structure, cyanotoxins are mainly classified into cyclic peptides, alkaloids, lipopeptides, nonprotein amino acids and lipoglycans. In terms of global distribution, the amount of cyanotoxins are unbalanced in different areas. The diversity of cyanotoxins is more obviously found in many developed countries than that in undeveloped countries. Moreover, the threat of cyanotoxins has promoted the development of identification and detection technology. Many emerging methods have been developed to detect cyanotoxins in the environment. This communication provides a comprehensive review of the diversity of cyanotoxins, and the detection and identification technology was discussed. This detailed information will be a valuable resource for identifying the various types of cyanotoxins which threaten the environment of different areas. The ability to accurately identify specific cyanotoxins is an obvious and essential aspect of cyanobacterial research.
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23
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Thuan NH, An TT, Shrestha A, Canh NX, Sohng JK, Dhakal D. Recent Advances in Exploration and Biotechnological Production of Bioactive Compounds in Three Cyanobacterial Genera: Nostoc, Lyngbya, and Microcystis. Front Chem 2019; 7:604. [PMID: 31552222 PMCID: PMC6734169 DOI: 10.3389/fchem.2019.00604] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 08/16/2019] [Indexed: 12/21/2022] Open
Abstract
Cyanobacteria, are only Gram-negative bacteria with the capacity of oxygenic photosynthesis, so termed as “Cyanophyta” or “blue-green algae.” Their habitat is ubiquitous, which includes the diverse environments, such as soil, water, rock and other organisms (symbiosis, commensalism, or parasitism, etc.,). They are characterized as prominent producers of numerous types of important compounds with anti-microbial, anti-viral, anti-inflammatory and anti-tumor properties. Among the various cyanobacterial genera, members belonging to genera Nostoc, Lyngbya, and Microcystis possess greater attention. The major reason for that is the strains belonging to these genera produce the compounds with diverse activities/structures, including compounds in preclinical and/or clinical trials (cryptophycin and curacin), or the compounds retaining unique activities such as protease inhibitor (micropeptins and aeruginosins). Most of these compounds were tested for their efficacy and mechanism of action(MOA) through in vitro and/or in vivo studies. Recently, the advances in culture techniques of these cyanobacteria, and isolation, purification, and chromatographic analysis of their compounds have revealed insurmountable novel bioactive compounds from these cyanobacteria. This review provides comprehensive update on the origin, isolation and purification methods, chemical structures and biological activities of the major compounds from Nostoc, Lyngbya, and Microcystis. In addition, multi-omics approaches and biotechnological production of compounds from selected cyanobacterial genera have been discussed.
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Affiliation(s)
- Nguyen Huy Thuan
- Center for Molecular Biology, Institute of Research and Development, Duy Tan University, Danang, Vietnam
| | - Tran Tuan An
- Center for Molecular Biology, Institute of Research and Development, Duy Tan University, Danang, Vietnam
| | - Anil Shrestha
- Department of Life Science and Biochemical Engineering, Sun Moon University, Chungnam, South Korea
| | - Nguyen Xuan Canh
- Faculty of Biotechnology, Vietnam National University of Agriculture, Gialam, Hanoi, Vietnam
| | - Jae Kyung Sohng
- Department of Life Science and Biochemical Engineering, Sun Moon University, Chungnam, South Korea.,Department of BT-Convergent Pharmaceutical Engineering, Sun Moon University, Chungnam, South Korea
| | - Dipesh Dhakal
- Department of Life Science and Biochemical Engineering, Sun Moon University, Chungnam, South Korea
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24
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Demay J, Bernard C, Reinhardt A, Marie B. Natural Products from Cyanobacteria: Focus on Beneficial Activities. Mar Drugs 2019; 17:E320. [PMID: 31151260 PMCID: PMC6627551 DOI: 10.3390/md17060320] [Citation(s) in RCA: 124] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 05/21/2019] [Accepted: 05/21/2019] [Indexed: 12/28/2022] Open
Abstract
Cyanobacteria are photosynthetic microorganisms that colonize diverse environments worldwide, ranging from ocean to freshwaters, soils, and extreme environments. Their adaptation capacities and the diversity of natural products that they synthesize, support cyanobacterial success in colonization of their respective ecological niches. Although cyanobacteria are well-known for their toxin production and their relative deleterious consequences, they also produce a large variety of molecules that exhibit beneficial properties with high potential in various fields (e.g., a synthetic analog of dolastatin 10 is used against Hodgkin's lymphoma). The present review focuses on the beneficial activities of cyanobacterial molecules described so far. Based on an analysis of 670 papers, it appears that more than 90 genera of cyanobacteria have been observed to produce compounds with potentially beneficial activities in which most of them belong to the orders Oscillatoriales, Nostocales, Chroococcales, and Synechococcales. The rest of the cyanobacterial orders (i.e., Pleurocapsales, Chroococcidiopsales, and Gloeobacterales) remain poorly explored in terms of their molecular diversity and relative bioactivity. The diverse cyanobacterial metabolites possessing beneficial bioactivities belong to 10 different chemical classes (alkaloids, depsipeptides, lipopeptides, macrolides/lactones, peptides, terpenes, polysaccharides, lipids, polyketides, and others) that exhibit 14 major kinds of bioactivity. However, no direct relationship between the chemical class and the respective bioactivity of these molecules has been demonstrated. We further selected and specifically described 47 molecule families according to their respective bioactivities and their potential uses in pharmacology, cosmetology, agriculture, or other specific fields of interest. With this up-to-date review, we attempt to present new perspectives for the rational discovery of novel cyanobacterial metabolites with beneficial bioactivity.
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Affiliation(s)
- Justine Demay
- UMR 7245 MCAM, Muséum National d'Histoire Naturelle-CNRS, Paris, 12 rue Buffon, CP 39, 75231 Paris CEDEX 05, France.
- Thermes de Balaruc-les-Bains, 1 rue du Mont Saint-Clair BP 45, 34540 Balaruc-Les-Bains, France.
| | - Cécile Bernard
- UMR 7245 MCAM, Muséum National d'Histoire Naturelle-CNRS, Paris, 12 rue Buffon, CP 39, 75231 Paris CEDEX 05, France.
| | - Anita Reinhardt
- Thermes de Balaruc-les-Bains, 1 rue du Mont Saint-Clair BP 45, 34540 Balaruc-Les-Bains, France.
| | - Benjamin Marie
- UMR 7245 MCAM, Muséum National d'Histoire Naturelle-CNRS, Paris, 12 rue Buffon, CP 39, 75231 Paris CEDEX 05, France.
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25
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Cullen A, Pearson LA, Mazmouz R, Liu T, Soeriyadi AH, Ongley SE, Neilan BA. Heterologous expression and biochemical characterisation of cyanotoxin biosynthesis pathways. Nat Prod Rep 2019; 36:1117-1136. [DOI: 10.1039/c8np00063h] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review discusses cyanotoxin biosynthetic pathways and highlights the heterologous expression and biochemical studies used to characterise them.
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Affiliation(s)
- Alescia Cullen
- School of Environmental and Life Sciences
- University of Newcastle
- Callaghan 2308
- Australia
| | - Leanne A. Pearson
- School of Environmental and Life Sciences
- University of Newcastle
- Callaghan 2308
- Australia
| | - Rabia Mazmouz
- School of Environmental and Life Sciences
- University of Newcastle
- Callaghan 2308
- Australia
| | - Tianzhe Liu
- School of Biotechnology and Biomolecular Sciences
- The University of New South Wales
- Sydney 2052
- Australia
| | - Angela H. Soeriyadi
- School of Biotechnology and Biomolecular Sciences
- The University of New South Wales
- Sydney 2052
- Australia
| | - Sarah E. Ongley
- School of Environmental and Life Sciences
- University of Newcastle
- Callaghan 2308
- Australia
| | - Brett A. Neilan
- School of Environmental and Life Sciences
- University of Newcastle
- Callaghan 2308
- Australia
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26
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Cegłowska M, Toruńska-Sitarz A, Kowalewska G, Mazur-Marzec H. Specific Chemical and Genetic Markers Revealed a Thousands-Year Presence of Toxic Nodularia spumigena in the Baltic Sea. Mar Drugs 2018; 16:md16040116. [PMID: 29617355 PMCID: PMC5923403 DOI: 10.3390/md16040116] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 03/29/2018] [Accepted: 04/03/2018] [Indexed: 01/07/2023] Open
Abstract
In the Baltic Sea, diazotrophic cyanobacteria have been present for thousands of years, over the whole brackish water phase of the ecosystem. However, our knowledge about the species composition of the cyanobacterial community is limited to the last several decades. In the current study, the presence of species-specific chemical and genetic markers in deep sediments were analyzed to increase the existing knowledge on the history of toxic Nodularia spumigena blooms in the Baltic Sea. As chemical markers, three cyclic nonribosomal peptides were applied: the hepatotoxic nodularin, which in the sea was detected solely in N. spumigena, and two anabaenopeptins (AP827 and AP883a) characteristic of two different chemotypes of this species. From the same sediment samples, DNA was isolated and the gene involved in biosynthesis of nodularin, as well as the phycocyanin intergenic spacer region (PC-IGS), were amplified. The results of chemical and genetic analyses proved for the first time the thousands-year presence of toxic N. spumigena in the Baltic Sea. They also indicated that through all this time, the same two sub-populations of the species co-existed.
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Affiliation(s)
- Marta Cegłowska
- Institute of Oceanology, Polish Academy of Sciences, Powstańców Warszawy 55, PL-81-727 Sopot, Poland.
| | - Anna Toruńska-Sitarz
- Division of Marine Biotechnology, Faculty of Oceanography and Geography, University of Gdańsk, Marszałka J. Płisudskiego 46, PL-81-378 Gdynia, Poland.
| | - Grażyna Kowalewska
- Institute of Oceanology, Polish Academy of Sciences, Powstańców Warszawy 55, PL-81-727 Sopot, Poland.
| | - Hanna Mazur-Marzec
- Institute of Oceanology, Polish Academy of Sciences, Powstańców Warszawy 55, PL-81-727 Sopot, Poland.
- Division of Marine Biotechnology, Faculty of Oceanography and Geography, University of Gdańsk, Marszałka J. Płisudskiego 46, PL-81-378 Gdynia, Poland.
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27
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Bui T, Dao TS, Vo TG, Lürling M. Warming Affects Growth Rates and Microcystin Production in Tropical Bloom-Forming Microcystis Strains. Toxins (Basel) 2018; 10:E123. [PMID: 29538312 PMCID: PMC5869411 DOI: 10.3390/toxins10030123] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Revised: 02/27/2018] [Accepted: 03/12/2018] [Indexed: 01/27/2023] Open
Abstract
Warming climate is predicted to promote cyanobacterial blooms but the toxicity of cyanobacteria under global warming is less well studied. We tested the hypothesis that raising temperature may lead to increased growth rates but to decreased microcystin (MC) production in tropical Microcystis strains. To this end, six Microcystis strains were isolated from different water bodies in Southern Vietnam. They were grown in triplicate at 27 °C (low), 31 °C (medium), 35 °C (high) and 37 °C (extreme). Chlorophyll-a-, particle- and MC concentrations as well as dry-weights were determined. All strains yielded higher biomass in terms of chlorophyll-a concentration and dry-weight at 31 °C compared to 27 °C and then either stabilised, slightly increased or declined with higher temperature. Five strains easily grew at 37 °C but one could not survive at 37 °C. When temperature was increased from 27 °C to 37 °C total MC concentration decreased by 35% in strains with MC-LR as the dominant variant and by 94% in strains with MC-RR. MC quota expressed per particle, per unit chlorophyll-a and per unit dry-weight significantly declined with higher temperatures. This study shows that warming can prompt the growth of some tropical Microcystis strains but that these strains become less toxic.
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Affiliation(s)
- Trung Bui
- Aquatic Ecology & Water Quality Management Group, Wageningen University, P.O. Box 47, 6700 AA Wageningen, The Netherlands.
- Institute for Environment and Resources, Vietnam National University, Hochiminh City, Linh Trung Ward, Thu Duc District, 700000 Ho Chi Minh City, Vietnam.
| | - Thanh-Son Dao
- Hochiminh City University of Technology, Vietnam National University, Hochiminh City, 268 Ly Thuong Kiet Street, District 10, 700000 Ho Chi Minh City, Vietnam.
| | - Truong-Giang Vo
- National Breeding Center for Southern Marine Aquaculture, 167 Thuy Van Street, Vung Tau Town, Ba Ria 790000, Vung Tau Province, Vietnam.
| | - Miquel Lürling
- Aquatic Ecology & Water Quality Management Group, Wageningen University, P.O. Box 47, 6700 AA Wageningen, The Netherlands.
- Department of Aquatic Ecology, Netherlands Institute of Ecology (NIOO-KNAW), P.O. Box 50, 6700 AB Wageningen, The Netherlands.
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