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Zárate-López MA, Quintana-Rodríguez E, Orona-Tamayo D, Aguilar-Hernández V, Araujo-León JA, Brito-Argáez L, Molina-Torres J, Hernández-Flores JL, Loyola-Vargas VM, Lozoya-Pérez NE, Lozoya-Gloria E. Metabolic Responses of the Microalga Neochloris oleoabundans to Extracellular Self- and Nonself-DNA. Int J Mol Sci 2023; 24:14172. [PMID: 37762475 PMCID: PMC10531809 DOI: 10.3390/ijms241814172] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 08/24/2023] [Accepted: 08/29/2023] [Indexed: 09/29/2023] Open
Abstract
Stressed organisms identify intracellular molecules released from damaged cells due to trauma or pathogen infection as components of the innate immune response. These molecules called DAMPs (Damage-Associated Molecular Patterns) are extracellular ATP, sugars, and extracellular DNA, among others. Animals and plants can recognize their own DNA applied externally (self-exDNA) as a DAMP with a high degree of specificity. However, little is known about the microalgae responses to damage when exposed to DAMPs and specifically to self-exDNAs. Here we compared the response of the oilseed microalgae Neochloris oleoabundans to self-exDNA, with the stress responses elicited by nonself-exDNA, methyl jasmonate (MeJA) and sodium bicarbonate (NaHCO3). We analyzed the peroxidase enzyme activity related to the production of reactive oxygen species (ROS), as well as the production of polyphenols, lipids, triacylglycerols, and phytohormones. After 5 min of addition, self-exDNA induced peroxidase enzyme activity higher than the other elicitors. Polyphenols and lipids were increased by self-exDNA at 48 and 24 h, respectively. Triacylglycerols were increased with all elicitors from addition and up to 48 h, except with nonself-exDNA. Regarding phytohormones, self-exDNA and MeJA increased gibberellic acid, isopentenyladenine, and benzylaminopurine at 24 h. Results show that Neochloris oleoabundans have self-exDNA specific responses.
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Affiliation(s)
- Mónica A. Zárate-López
- Centro de Investigación y de Estudios Avanzados del IPN (CINVESTAV-IPN), Unidad Irapuato, Km 9.6 Carretera Irapuato-León, Irapuato 36824, Guanajuato, Mexico; (M.A.Z.-L.); (J.M.-T.); (J.L.H.-F.)
- Centro de Innovación Aplicada en Tecnologías Competitivas (CIATEC), Omega # 201 Col. Industrial Delta, León 37545, Guanajuato, Mexico; (D.O.-T.); (N.E.L.-P.)
| | - Elizabeth Quintana-Rodríguez
- Centro de Innovación Aplicada en Tecnologías Competitivas (CIATEC), Omega # 201 Col. Industrial Delta, León 37545, Guanajuato, Mexico; (D.O.-T.); (N.E.L.-P.)
| | - Domancar Orona-Tamayo
- Centro de Innovación Aplicada en Tecnologías Competitivas (CIATEC), Omega # 201 Col. Industrial Delta, León 37545, Guanajuato, Mexico; (D.O.-T.); (N.E.L.-P.)
| | - Víctor Aguilar-Hernández
- Centro de Investigación Científica de Yucatán, A.C. (CICY), Calle 43 # 130, Chuburná de Hidalgo, Mérida 97205, Yucatán, Mexico; (V.A.-H.); (J.A.A.-L.); (L.B.-A.); (V.M.L.-V.)
| | - Jesús A. Araujo-León
- Centro de Investigación Científica de Yucatán, A.C. (CICY), Calle 43 # 130, Chuburná de Hidalgo, Mérida 97205, Yucatán, Mexico; (V.A.-H.); (J.A.A.-L.); (L.B.-A.); (V.M.L.-V.)
| | - Ligia Brito-Argáez
- Centro de Investigación Científica de Yucatán, A.C. (CICY), Calle 43 # 130, Chuburná de Hidalgo, Mérida 97205, Yucatán, Mexico; (V.A.-H.); (J.A.A.-L.); (L.B.-A.); (V.M.L.-V.)
| | - Jorge Molina-Torres
- Centro de Investigación y de Estudios Avanzados del IPN (CINVESTAV-IPN), Unidad Irapuato, Km 9.6 Carretera Irapuato-León, Irapuato 36824, Guanajuato, Mexico; (M.A.Z.-L.); (J.M.-T.); (J.L.H.-F.)
| | - José Luis Hernández-Flores
- Centro de Investigación y de Estudios Avanzados del IPN (CINVESTAV-IPN), Unidad Irapuato, Km 9.6 Carretera Irapuato-León, Irapuato 36824, Guanajuato, Mexico; (M.A.Z.-L.); (J.M.-T.); (J.L.H.-F.)
| | - Víctor M. Loyola-Vargas
- Centro de Investigación Científica de Yucatán, A.C. (CICY), Calle 43 # 130, Chuburná de Hidalgo, Mérida 97205, Yucatán, Mexico; (V.A.-H.); (J.A.A.-L.); (L.B.-A.); (V.M.L.-V.)
| | - Nancy E. Lozoya-Pérez
- Centro de Innovación Aplicada en Tecnologías Competitivas (CIATEC), Omega # 201 Col. Industrial Delta, León 37545, Guanajuato, Mexico; (D.O.-T.); (N.E.L.-P.)
| | - Edmundo Lozoya-Gloria
- Centro de Investigación y de Estudios Avanzados del IPN (CINVESTAV-IPN), Unidad Irapuato, Km 9.6 Carretera Irapuato-León, Irapuato 36824, Guanajuato, Mexico; (M.A.Z.-L.); (J.M.-T.); (J.L.H.-F.)
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Kolackova M, Janova A, Dobesova M, Zvalova M, Chaloupsky P, Krystofova O, Adam V, Huska D. Role of secondary metabolites in distressed microalgae. ENVIRONMENTAL RESEARCH 2023; 224:115392. [PMID: 36746204 DOI: 10.1016/j.envres.2023.115392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 01/09/2023] [Accepted: 01/28/2023] [Indexed: 06/18/2023]
Abstract
Proficient photosynthetic microalgae/cyanobacteria produce a remarkable amount of various biomolecules. Secondary metabolites (SM) represent high value products for global biotrend application. Production improvement can be achieved by nutritional, environmental, and physiological stress as a first line tools for their stimulation. In recent decade, an increasing interest in algal stress biology and omics techniques have deepened knowledge in this area. However, deep understanding and connection of specific stress elucidator are missing. Hence, the present review summarizes recent evidence with an emphasis on the carotenoids, phenolic, and less-discussed compounds (glycerol, proline, mycosporins-like amino acids). Even when they are synthesized at very low concentrations, it highlights the need to expand knowledge in this area using genome-editing tools and omics approaches.
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Affiliation(s)
- Martina Kolackova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic
| | - Anna Janova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic
| | - Marketa Dobesova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic
| | - Monika Zvalova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic
| | - Pavel Chaloupsky
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic
| | - Olga Krystofova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic
| | - Vojtech Adam
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic
| | - Dalibor Huska
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, 613 00, Brno, Czech Republic.
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Tedeschi AM, Di Caprio F, Piozzi A, Pagnanelli F, Francolini I. Sustainable Bioactive Packaging Based on Thermoplastic Starch and Microalgae. Int J Mol Sci 2021; 23:ijms23010178. [PMID: 35008606 PMCID: PMC8745059 DOI: 10.3390/ijms23010178] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 12/21/2021] [Accepted: 12/21/2021] [Indexed: 12/11/2022] Open
Abstract
This study combines the use of corn starch and Tetradesmus obliquus microalgae for the production of antioxidant starch films as flexible packaging material. Starch was plasticized with glycerol and blended with 1 w% polyallylamine chosen as an agent to modify the film physical properties. The addition of polyallylamine improved film water stability and water vapor transmission rate as well as mechanical stiffness and tenacity. The dried Tetradesmus obliquus microalgae, which showed an EC50 value of 2.8 mg/mg DPPH (2.2-Diphenyl-1-picrylhydrazyl radical), was then used as antioxidant filler. The addition of microalgae provided the films with good antioxidant activity, which increased with microalgae content increasing. To our knowledge, this is the first study reporting the development of sustainable bioactive packaging films composed of almost 100% starch, and follows the European union's goals on plastics strategy concerning the promotion of bio-based, compostable plastics and the setting up of approaches to prevent food waste with a simple plastic packaging.
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