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Fierli D, Aranyos A, Barone ME, Parkes R, Touzet N. Influence of exogenous phytohormone supplementation on the pigment and fatty acid content of three marine diatoms. Appl Microbiol Biotechnol 2022; 106:6195-6207. [PMID: 36040486 DOI: 10.1007/s00253-022-12140-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 08/09/2022] [Accepted: 08/13/2022] [Indexed: 11/24/2022]
Abstract
Diatoms are ubiquitous photosynthetic microorganisms with great potential for biotechnological applications. However, their commercialisation is hampered by production costs, requiring hence optimisation of cultivation methods. Phytohormones are plant growth regulators which may be used to influence physiological processes in microalgae, including diatoms. In this study, the model species Phaeodactylum tricornutum (Phaeodactylaceae) and two Irish isolates of Stauroneis sp. (Stauroneidaceae) and Nitzschia sp. (Bacillariaceae) were grown with varying amounts of the phytohormones indoleacetic acid (IAA), gibberellic acid (GA3), methyl jasmonate (MJ), abscisic acid (ABA) or salicylic acid (SA), and their influence on pigment and fatty acid profiles was monitored. The application of GA3 (200 mg/l) stimulated the growth of P. tricornutum which accumulated 52% more dry biomass compared to the control and concomitantly returned the highest eicosapentaenoic acid (EPA) yield (0.6 mg/l). The highest fucoxanthin yield (0.18 mg/l) was obtained for P. tricornutum cultivated with GA3 (2 mg/l) supplementation. In Stauroneis sp., SA (1 mg/l) had the most positive effect on EPA, the content of which was enhanced up to 45.7 μg/mg (4.6% of total dry weight). The SA (1 mg/l) treatment also boosted carotenogenesis in Nitzschia sp., leading to 1.7- and 14-fold increases in fucoxanthin and β-carotene compared to the control, respectively. Of note, MJ (0.5 mg/l) increased the EPA content of all diatom species compared to their controls. These results indicate that phytohormone-based treatments can be used to alter the pigment and lipid content of microalgae, which tend to respond in dose- and species-specific manners to individual compounds.Key points• Response to phytohormones was investigated in diatoms from distinct families.• MJ (0.5 mg/l) caused an increase in EPA cellular content in all three diatoms.• Phytohormones mostly caused dose-dependent and species-specific responses.
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Affiliation(s)
- David Fierli
- Department of Environmental Science, School of Science, Centre for Environmental Research, Innovation and Sustainability, CERIS, Atlantic Technological University Sligo, Sligo, Ireland.
| | - Anita Aranyos
- Department of Environmental Science, School of Science, Centre for Environmental Research, Innovation and Sustainability, CERIS, Atlantic Technological University Sligo, Sligo, Ireland
| | - Maria Elena Barone
- Department of Environmental Science, School of Science, Centre for Environmental Research, Innovation and Sustainability, CERIS, Atlantic Technological University Sligo, Sligo, Ireland
| | - Rachel Parkes
- Department of Environmental Science, School of Science, Centre for Environmental Research, Innovation and Sustainability, CERIS, Atlantic Technological University Sligo, Sligo, Ireland
| | - Nicolas Touzet
- Department of Environmental Science, School of Science, Centre for Environmental Research, Innovation and Sustainability, CERIS, Atlantic Technological University Sligo, Sligo, Ireland
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Parkes R, Barone ME, Aranyos A, Fierli D, Koehler H, Gillespie E, Touzet N. Species-specific responses in pigments and fatty acids of five freshwater chlorophytes exposed to varying cultivation conditions. Process Biochem 2022. [DOI: 10.1016/j.procbio.2021.11.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Adamo G, Fierli D, Romancino DP, Picciotto S, Barone ME, Aranyos A, Božič D, Morsbach S, Raccosta S, Stanly C, Paganini C, Gai M, Cusimano A, Martorana V, Noto R, Carrotta R, Librizzi F, Randazzo L, Parkes R, Capasso Palmiero U, Rao E, Paterna A, Santonicola P, Iglič A, Corcuera L, Kisslinger A, Di Schiavi E, Liguori GL, Landfester K, Kralj-Iglič V, Arosio P, Pocsfalvi G, Touzet N, Manno M, Bongiovanni A. Nanoalgosomes: Introducing extracellular vesicles produced by microalgae. J Extracell Vesicles 2021; 10:e12081. [PMID: 33936568 PMCID: PMC8077145 DOI: 10.1002/jev2.12081] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 02/26/2021] [Accepted: 03/09/2021] [Indexed: 12/18/2022] Open
Abstract
Cellular, inter-organismal and cross kingdom communication via extracellular vesicles (EVs) is intensively studied in basic science with high expectation for a large variety of bio-technological applications. EVs intrinsically possess many attributes of a drug delivery vehicle. Beyond the implications for basic cell biology, academic and industrial interests in EVs have increased in the last few years. Microalgae constitute sustainable and renewable sources of bioactive compounds with a range of sectoral applications, including the formulation of health supplements, cosmetic products and food ingredients. Here we describe a newly discovered subtype of EVs derived from microalgae, which we named nanoalgosomes. We isolated these extracellular nano-objects from cultures of microalgal strains, including the marine photosynthetic chlorophyte Tetraselmis chuii, using differential ultracentrifugation or tangential flow fractionation and focusing on the nanosized small EVs (sEVs). We explore different biochemical and physical properties and we show that nanoalgosomes are efficiently taken up by mammalian cell lines, confirming the cross kingdom communication potential of EVs. This is the first detailed description of such membranous nanovesicles from microalgae. With respect to EVs isolated from other organisms, nanoalgosomes present several advantages in that microalgae are a renewable and sustainable natural source, which could easily be scalable in terms of nanoalgosome production.
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Affiliation(s)
- Giorgia Adamo
- Institute for Research and Biomedical Innovation (IRIB) - National Research Council of Italy (CNR) Palermo Italy
| | - David Fierli
- Centre for Environmental Research Innovation and Sustainability Institute of Technology Sligo Sligo Ireland
| | - Daniele P Romancino
- Institute for Research and Biomedical Innovation (IRIB) - National Research Council of Italy (CNR) Palermo Italy
| | - Sabrina Picciotto
- Institute for Research and Biomedical Innovation (IRIB) - National Research Council of Italy (CNR) Palermo Italy
| | - Maria E Barone
- Centre for Environmental Research Innovation and Sustainability Institute of Technology Sligo Sligo Ireland
| | - Anita Aranyos
- Centre for Environmental Research Innovation and Sustainability Institute of Technology Sligo Sligo Ireland
| | - Darja Božič
- University of Ljubljana (UL) Ljubljana Slovene
| | - Svenja Morsbach
- Max Planck Institute for Polymer Research (MPIP) Mainz Germany
| | - Samuele Raccosta
- Institute of Biophysics (IBF) - National Research Council of Italy (CNR) Palermo Italy
| | - Christopher Stanly
- Institute of Biosciences and BioResources (IBBR) - National Research Council of Italy (CNR) Naples Italy
| | - Carolina Paganini
- Department of Chemistry and Applied Biosciences ETH Zurich Zurich Switzerland
| | - Meiyu Gai
- Max Planck Institute for Polymer Research (MPIP) Mainz Germany
| | - Antonella Cusimano
- Institute for Research and Biomedical Innovation (IRIB) - National Research Council of Italy (CNR) Palermo Italy
| | - Vincenzo Martorana
- Institute of Biophysics (IBF) - National Research Council of Italy (CNR) Palermo Italy
| | - Rosina Noto
- Institute of Biophysics (IBF) - National Research Council of Italy (CNR) Palermo Italy
| | - Rita Carrotta
- Institute of Biophysics (IBF) - National Research Council of Italy (CNR) Palermo Italy
| | - Fabio Librizzi
- Institute of Biophysics (IBF) - National Research Council of Italy (CNR) Palermo Italy
| | - Loredana Randazzo
- Institute of Biophysics (IBF) - National Research Council of Italy (CNR) Palermo Italy
| | - Rachel Parkes
- Centre for Environmental Research Innovation and Sustainability Institute of Technology Sligo Sligo Ireland
| | | | - Estella Rao
- Institute of Biophysics (IBF) - National Research Council of Italy (CNR) Palermo Italy
| | - Angela Paterna
- Institute of Biophysics (IBF) - National Research Council of Italy (CNR) Palermo Italy
| | - Pamela Santonicola
- Institute of Biosciences and BioResources (IBBR) - National Research Council of Italy (CNR) Naples Italy
| | - Ales Iglič
- University of Ljubljana (UL) Ljubljana Slovene
| | | | - Annamaria Kisslinger
- Institute of Experimental Endocrinology and Oncology (IEOS) - National Research Council of Italy (CNR) Naples Italy
| | - Elia Di Schiavi
- Institute of Biosciences and BioResources (IBBR) - National Research Council of Italy (CNR) Naples Italy
| | - Giovanna L Liguori
- Institute of Genetics and Biophysics (IGB) - National Research Council of Italy (CNR) Naples Italy
| | | | | | - Paolo Arosio
- Department of Chemistry and Applied Biosciences ETH Zurich Zurich Switzerland
| | - Gabriella Pocsfalvi
- Institute of Biosciences and BioResources (IBBR) - National Research Council of Italy (CNR) Naples Italy
| | - Nicolas Touzet
- Centre for Environmental Research Innovation and Sustainability Institute of Technology Sligo Sligo Ireland
| | - Mauro Manno
- Institute of Biophysics (IBF) - National Research Council of Italy (CNR) Palermo Italy
| | - Antonella Bongiovanni
- Institute for Research and Biomedical Innovation (IRIB) - National Research Council of Italy (CNR) Palermo Italy
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Picciotto S, Barone ME, Fierli D, Aranyos A, Adamo G, Božič D, Romancino DP, Stanly C, Parkes R, Morsbach S, Raccosta S, Paganini C, Cusimano A, Martorana V, Noto R, Carrotta R, Librizzi F, Capasso Palmiero U, Santonicola P, Iglič A, Gai M, Corcuera L, Kisslinger A, Di Schiavi E, Landfester K, Liguori GL, Kralj-Iglič V, Arosio P, Pocsfalvi G, Manno M, Touzet N, Bongiovanni A. Isolation of extracellular vesicles from microalgae: towards the production of sustainable and natural nanocarriers of bioactive compounds. Biomater Sci 2021; 9:2917-2930. [DOI: 10.1039/d0bm01696a] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Biophysical and biochemical characterisation of microalgae-derived extracellular vesicles.
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