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Toledo E, Félix C, Vicente TFL, Augusto A, Félix R, Toledo B, Silva J, Trindade C, Raimundo D, Lemos MFL. Seaweed Extracts to Control Postharvest Phytopathogenic Fungi in Rocha Pear. J Fungi (Basel) 2023; 9:jof9020269. [PMID: 36836383 PMCID: PMC9967800 DOI: 10.3390/jof9020269] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 02/13/2023] [Accepted: 02/14/2023] [Indexed: 02/22/2023] Open
Abstract
Fungal infections cause losses amounting to between 20 and 25% of the fruit industry's total outcome, with an escalating impact on agriculture in the last decades. As seaweeds have long demonstrated relevant antimicrobial properties against a wide variety of microorganisms, extracts from Asparagopsis armata, Codium sp., Fucus vesiculosus, and Sargassum muticum were used to find sustainable, ecofriendly, and safe solutions against Rocha pear postharvest fungal infections. Alternaria alternata, Botrytis cinerea, Fusarium oxysporum, and Penicillium expansum mycelial growth and spore germination inhibition activities were tested in vitro with five different extracts of each seaweed (n-hexane, ethyl acetate, aqueous, ethanolic, and hydroethanolic). An in vivo assay was then performed using the aqueous extracts against B. cinerea and F. oxysporum in Rocha pear. The n-hexane, ethyl acetate, and ethanolic extracts from A. armata showed the best in vitro inhibitory activity against B. cinerea, F. oxysporum, and P. expansum, and promising in vivo results against B. cinerea using S. muticum aqueous extract were also found. The present work highlights the contribution of seaweeds to tackle agricultural problems, namely postharvest phytopathogenic fungal diseases, contributing to a greener and more sustainable bioeconomy from the sea to the farm.
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Affiliation(s)
- Eloísa Toledo
- MARE-Marine and Environmental Sciences Centre & ARNET—Aquatic Research Network Associated Laboratory, ESTM, Polytechnic of Leiria, 2520-641 Peniche, Portugal
| | - Carina Félix
- MARE-Marine and Environmental Sciences Centre & ARNET—Aquatic Research Network Associated Laboratory, ESTM, Polytechnic of Leiria, 2520-641 Peniche, Portugal
| | - Tânia F. L. Vicente
- MARE-Marine and Environmental Sciences Centre & ARNET—Aquatic Research Network Associated Laboratory, ESTM, Polytechnic of Leiria, 2520-641 Peniche, Portugal
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Faculdade de Farmácia, Universidade do Porto, 4050-313 Porto, Portugal
| | - Ana Augusto
- MARE-Marine and Environmental Sciences Centre & ARNET—Aquatic Research Network Associated Laboratory, ESTM, Polytechnic of Leiria, 2520-641 Peniche, Portugal
| | - Rafael Félix
- MARE-Marine and Environmental Sciences Centre & ARNET—Aquatic Research Network Associated Laboratory, ESTM, Polytechnic of Leiria, 2520-641 Peniche, Portugal
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Faculdade de Farmácia, Universidade do Porto, 4050-313 Porto, Portugal
| | - Bernardo Toledo
- Departamento de Ecología Integrativa, Estación Biológica de Doñana (EBD), Consejo Superior de Investigaciones Científicas (CSIC), 41092 Sevilla, Spain
| | - Joana Silva
- MARE-Marine and Environmental Sciences Centre & ARNET—Aquatic Research Network Associated Laboratory, ESTM, Polytechnic of Leiria, 2520-641 Peniche, Portugal
| | | | | | - Marco F. L. Lemos
- MARE-Marine and Environmental Sciences Centre & ARNET—Aquatic Research Network Associated Laboratory, ESTM, Polytechnic of Leiria, 2520-641 Peniche, Portugal
- Correspondence:
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Vicente TFL, Félix C, Félix R, Valentão P, Lemos MFL. Seaweed as a Natural Source against Phytopathogenic Bacteria. Mar Drugs 2022; 21:23. [PMID: 36662196 PMCID: PMC9867177 DOI: 10.3390/md21010023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/20/2022] [Accepted: 12/22/2022] [Indexed: 12/31/2022] Open
Abstract
Plant bacterial pathogens can be devastating and compromise entire crops of fruit and vegetables worldwide. The consequences of bacterial plant infections represent not only relevant economical losses, but also the reduction of food availability. Synthetic bactericides have been the most used tool to control bacterial diseases, representing an expensive investment for the producers, since cyclic applications are usually necessary, and are a potential threat to the environment. The development of greener methodologies is of paramount importance, and some options are already available in the market, usually related to genetic manipulation or plant community modulation, as in the case of biocontrol. Seaweeds are one of the richest sources of bioactive compounds, already being used in different industries such as cosmetics, food, medicine, pharmaceutical investigation, and agriculture, among others. They also arise as an eco-friendly alternative to synthetic bactericides. Several studies have already demonstrated their inhibitory activity over relevant bacterial phytopathogens, some of these compounds are known for their eliciting ability to trigger priming defense mechanisms. The present work aims to gather the available information regarding seaweed extracts/compounds with antibacterial activity and eliciting potential to control bacterial phytopathogens, highlighting the extracts from brown algae with protective properties against microbial attack.
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Affiliation(s)
- Tânia F. L. Vicente
- MARE-Marine and Environmental Sciences Centre & ARNET—Aquatic Research Network Associated Laboratory, ESTM, Polytechnic of Leiria, 2520-641 Peniche, Portugal
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Faculdade de Farmácia, Universidade do Porto, 4050-313 Porto, Portugal
| | - Carina Félix
- MARE-Marine and Environmental Sciences Centre & ARNET—Aquatic Research Network Associated Laboratory, ESTM, Polytechnic of Leiria, 2520-641 Peniche, Portugal
| | - Rafael Félix
- MARE-Marine and Environmental Sciences Centre & ARNET—Aquatic Research Network Associated Laboratory, ESTM, Polytechnic of Leiria, 2520-641 Peniche, Portugal
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Faculdade de Farmácia, Universidade do Porto, 4050-313 Porto, Portugal
| | - Patrícia Valentão
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Faculdade de Farmácia, Universidade do Porto, 4050-313 Porto, Portugal
| | - Marco F. L. Lemos
- MARE-Marine and Environmental Sciences Centre & ARNET—Aquatic Research Network Associated Laboratory, ESTM, Polytechnic of Leiria, 2520-641 Peniche, Portugal
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Reboleira J, Félix R, Vicente TFL, Januário AP, Félix C, de Melo MMR, Silva CM, Ribeiro AC, Saraiva JA, Bandarra NM, Sapatinha M, Paulo MC, Coutinho J, Lemos MFL. Uncovering the Bioactivity of Aurantiochytrium sp.: a Comparison of Extraction Methodologies. Mar Biotechnol (NY) 2022; 24:40-54. [PMID: 34855032 DOI: 10.1007/s10126-021-10085-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 11/18/2021] [Indexed: 06/13/2023]
Abstract
Aurantiochytrium sp. is an emerging alternative source of polyunsaturated fatty acids (PUFAs), docosahexaenoic acid (DHA), and squalene, playing an important role in the phasing out of traditional fish sources for these compounds. Novel lipid extraction techniques with a focus on sustainability and low environmental footprint are being developed for this organism, but the exploration of other added-value compounds within it is still very limited. In this work, a combination of novel green extraction techniques (high hydrostatic pressure extraction (HPE) and supercritical fluid extraction (SFE)) and traditional techniques (organic solvent Soxhlet extraction and hydrodistillation (HD)) was used to obtain lipophilic extracts of Aurantiochytrium sp., which were then screened for antioxidant (DPPH radical reduction capacity and ferric-reducing antioxidant potential (FRAP) assays), lipid oxidation protection, antimicrobial, anti-aging enzyme inhibition (collagenase, elastase and hyaluronidase), and anti-inflammatory (inhibition of NO production) activities. The screening revealed promising extracts in nearly all categories of biological activity tested, with only the enzymatic inhibition being low in all extracts. Powerful lipid oxidation protection and anti-inflammatory activity were observed in most SFE samples. Ethanolic HPEs inhibited both lipid oxidation reactions and microbial growth. The HD extract demonstrated high antioxidant, antimicrobial, and anti-inflammatory activities making, it a major contender for further studies aiming at the valorization of Aurantiochytrium sp. Taken together, this study presents compelling evidence of the bioactive potential of Aurantiochytrium sp. and encourages further exploration of its composition and application.
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Affiliation(s)
- João Reboleira
- MARE - Marine and Environmental Sciences Centre, ESTM, Politécnico de Leiria, 2520-641, Peniche, Portugal.
- Edifício CETEMARES, Avenida Do Porto de Pesca, 2520-630, Peniche, Portugal.
| | - Rafael Félix
- MARE - Marine and Environmental Sciences Centre, ESTM, Politécnico de Leiria, 2520-641, Peniche, Portugal
| | - Tânia F L Vicente
- MARE - Marine and Environmental Sciences Centre, ESTM, Politécnico de Leiria, 2520-641, Peniche, Portugal
| | - Adriana P Januário
- MARE - Marine and Environmental Sciences Centre, ESTM, Politécnico de Leiria, 2520-641, Peniche, Portugal
| | - Carina Félix
- MARE - Marine and Environmental Sciences Centre, ESTM, Politécnico de Leiria, 2520-641, Peniche, Portugal
| | - Marcelo M R de Melo
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - Carlos M Silva
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - Ana C Ribeiro
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Jorge A Saraiva
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Narcisa M Bandarra
- Division of Aquaculture and Upgrading, Portuguese Institute of the Sea and Atmosphere, Rua Alfredo Magalhães Ramalho, 1495-006, Lisboa, Portugal
| | - Maria Sapatinha
- Division of Aquaculture and Upgrading, Portuguese Institute of the Sea and Atmosphere, Rua Alfredo Magalhães Ramalho, 1495-006, Lisboa, Portugal
| | - Maria C Paulo
- DEPSIEXTRACTA Tecnologias E Biológicas, Lda, Zona Industrial do Monte da Barca rua H, lote 62, 2100-057, Coruche, Portugal
| | - Joana Coutinho
- DEPSIEXTRACTA Tecnologias E Biológicas, Lda, Zona Industrial do Monte da Barca rua H, lote 62, 2100-057, Coruche, Portugal
| | - Marco F L Lemos
- MARE - Marine and Environmental Sciences Centre, ESTM, Politécnico de Leiria, 2520-641, Peniche, Portugal.
- Edifício CETEMARES, Avenida Do Porto de Pesca, 2520-630, Peniche, Portugal.
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Vicente TFL, Lemos MFL, Félix R, Valentão P, Félix C. Marine Macroalgae, a Source of Natural Inhibitors of Fungal Phytopathogens. J Fungi (Basel) 2021; 7:1006. [PMID: 34946989 PMCID: PMC8708330 DOI: 10.3390/jof7121006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 11/17/2021] [Accepted: 11/23/2021] [Indexed: 01/30/2023] Open
Abstract
Fungal phytopathogens are a growing problem all over the world; their propagation causes significant crop losses, affecting the quality of fruits and vegetables, diminishing the availability of food, leading to the loss of billions of euros every year. To control fungal diseases, the use of synthetic chemical fungicides is widely applied; these substances are, however, environmentally damaging. Marine algae, one of the richest marine sources of compounds possessing a wide range of bioactivities, present an eco-friendly alternative in the search for diverse compounds with industrial applications. The synthesis of such bioactive compounds has been recognized as part of microalgal responsiveness to stress conditions, resulting in the production of polyphenols, polysaccharides, lipophilic compounds, and terpenoids, including halogenated compounds, already described as antimicrobial agents. Furthermore, many studies, in vitro or in planta, have demonstrated the inhibitory activity of these compounds with respect to fungal phytopathogens. This review aims to gather the maximum of information addressing macroalgae extracts with potential inhibition against fungal phytopathogens, including the best inhibitory results, while presenting some already reported mechanisms of action.
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Affiliation(s)
- Tânia F. L. Vicente
- MARE—Marine and Environmental Sciences Centre, ESTM, Politécnico de Leiria, 2520-641 Peniche, Portugal;
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Faculdade de Farmácia, Universidade do Porto, 4050-313 Porto, Portugal;
| | - Marco F. L. Lemos
- MARE—Marine and Environmental Sciences Centre, ESTM, Politécnico de Leiria, 2520-641 Peniche, Portugal;
| | - Rafael Félix
- MARE—Marine and Environmental Sciences Centre, ESTM, Politécnico de Leiria, 2520-641 Peniche, Portugal;
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Faculdade de Farmácia, Universidade do Porto, 4050-313 Porto, Portugal;
| | - Patrícia Valentão
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Faculdade de Farmácia, Universidade do Porto, 4050-313 Porto, Portugal;
| | - Carina Félix
- MARE—Marine and Environmental Sciences Centre, ESTM, Politécnico de Leiria, 2520-641 Peniche, Portugal;
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Vicente TFL, Gonçalves MFM, Brandão C, Fidalgo C, Alves A. Diversity of fungi associated with macroalgae from an estuarine environment and description of Cladosporium rubrum sp. nov. and Hypoxylon aveirense sp. nov. Int J Syst Evol Microbiol 2021; 71. [PMID: 33416464 DOI: 10.1099/ijsem.0.004630] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Fungal communities associated with macroalgae remain largely unexplored. To characterize algicolous fungal communities using culture dependent methods, macroalgae were collected from different sampling sites in the Ria de Aveiro estuary, Portugal. From a collection of 486 isolates that were obtained, 213 representative isolates were selected through microsatellite-primed PCR (MSP-PCR) fingerprinting analysis. The collection yielded 33 different genera, which were identified using the ITS region of the rDNA. The results revealed that the most abundant taxa in all collections were Acremonium-like species: Alternaria, Cladosporium, Leptobacillium and Penicillium. The fungal community composition varied with macroalgae species. Through multilocus phylogenetic analyses based on ITS, tub2, tef1-α and actA sequences, in addition to detailed morphological data, we propose Cladosporium rubrum sp. nov. (type strain=CMG 28=MUM 19.39) and Hypoxylon aveirense sp. nov. (type strain=CMG 29=MUM 19.40) as novel species.
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Affiliation(s)
- Tânia F L Vicente
- Departamento de Biologia, CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - Micael F M Gonçalves
- Departamento de Biologia, CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - Cláudio Brandão
- Departamento de Biologia, CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - Cátia Fidalgo
- Departamento de Biologia, CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - Artur Alves
- Departamento de Biologia, CESAM, Universidade de Aveiro, 3810-193 Aveiro, Portugal
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Gonçalves MFM, Vicente TFL, Esteves AC, Alves A. Novel halotolerant species of Emericellopsis and Parasarocladium associated with macroalgae in an estuarine environment. Mycologia 2019; 112:154-171. [PMID: 31829905 DOI: 10.1080/00275514.2019.1677448] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Macroalgae of the genera Fucus, Ulva, and Enteromorpha are typically abundant in estuaries. Endophytic fungi may have beneficial effects on the hosts affecting their ability to cope with stress. They are also a source of biologically active compounds. However, little is known about the endophytic fungi that colonize these macroalgae. Endophytic isolates were obtained from macroalgae from various sites in the estuary Ria de Aveiro (Portugal), as well as from saline water and sponges. Six Acremonium-like species could not be affiliated to any known species. Phylogenetic analyses based on internal transcribed spacer (ITS) region of the ribosomal DNA and β-tubulin (tub2) and actin (act1) genes placed these species in the genera Emericellopsis and Parasarocladium, but distinct from all currently known species. Although sharing morphological characteristics with the most closely related species, these genera differ in micromorphological and molecular characters. Thus, three novel species of Emericellopsis (E. cladophorae, sp. nov., E. enteromorphae, sp. nov., and E. phycophila, sp. nov.) and three novel species of Parasarocladium (P. aestuarinum, sp. nov., P. alavariense, sp. nov., and P. fusiforme, sp. nov.) are proposed.
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Affiliation(s)
- Micael F M Gonçalves
- Department of Biology, Centro de Estudos do Ambiente e do Mar (CESAM), University of Aveiro, Aveiro, 3810-193, Portugal
| | - Tânia F L Vicente
- Department of Biology, Centro de Estudos do Ambiente e do Mar (CESAM), University of Aveiro, Aveiro, 3810-193, Portugal
| | - Ana C Esteves
- Department of Biology, Centro de Estudos do Ambiente e do Mar (CESAM), University of Aveiro, Aveiro, 3810-193, Portugal
| | - Artur Alves
- Department of Biology, Centro de Estudos do Ambiente e do Mar (CESAM), University of Aveiro, Aveiro, 3810-193, Portugal
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Gonçalves MFM, Vicente TFL, Esteves AC, Alves A. Neptunomyces aureus gen. et sp. nov. (Didymosphaeriaceae, Pleosporales) isolated from algae in Ria de Aveiro, Portugal. MycoKeys 2019; 60:31-44. [PMID: 31723336 PMCID: PMC6838220 DOI: 10.3897/mycokeys.60.37931] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 07/04/2019] [Accepted: 09/23/2019] [Indexed: 11/24/2022] Open
Abstract
A collection of fungi was isolated from macroalgae of the genera Gracilaria, Enteromorpha and Ulva in the estuary Ria de Aveiro in Portugal. These isolates were characterized through a multilocus phylogeny based on ITS region of the ribosomal DNA, beta-tubulin (tub2) and translation elongation factor 1 alpha (tef1-α) sequences, in conjunction with morphological and physiological data. These analyses showed that the isolates represented an unknown fungus for which a new genus, Neptunomycesgen. nov. and a new species, Neptunomycesaureussp. nov. are proposed. Phylogenetic analyses supported the affiliation of this new taxon to the family Didymosphaeriaceae.
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Affiliation(s)
- Micael F M Gonçalves
- Department of Biology, CESAM, University of Aveiro, 3810-193 Aveiro, Portugal Universidade de Aveiro Aveiro Portugal
| | - Tânia F L Vicente
- Department of Biology, CESAM, University of Aveiro, 3810-193 Aveiro, Portugal Universidade de Aveiro Aveiro Portugal
| | - Ana C Esteves
- Department of Biology, CESAM, University of Aveiro, 3810-193 Aveiro, Portugal Universidade de Aveiro Aveiro Portugal.,Universidade Católica Portuguesa, Institute of Health Sciences (ICS), Centre for Interdisciplinary Research in Health (CIIS), Viseu, Portugal Universidade Católica Portuguesa Viseu Portugal
| | - Artur Alves
- Department of Biology, CESAM, University of Aveiro, 3810-193 Aveiro, Portugal Universidade de Aveiro Aveiro Portugal
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Gonçalves MFM, Santos L, Silva BMV, Abreu AC, Vicente TFL, Esteves AC, Alves A. Biodiversity of Penicillium species from marine environments in Portugal and description of Penicillium lusitanum sp. nov., a novel species isolated from sea water. Int J Syst Evol Microbiol 2019; 69:3014-3021. [DOI: 10.1099/ijsem.0.003535] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
| | - Liliana Santos
- Department of Biology, CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Bruno M. V. Silva
- Department of Biology, CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Alberto C. Abreu
- Department of Biology, CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Tânia F. L. Vicente
- Department of Biology, CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Ana C. Esteves
- Department of Biology, CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
- Present address: Universidade Católica Portuguesa, Institute of Health Sciences (ICS)-Viseu, Viseu, Portugal
| | - Artur Alves
- Department of Biology, CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
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