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Clausing RJ, Falace A, De Le Fuente G, Della Torre C, Chiantore M, Asnaghi V. Ex-situ restoration of the Mediterranean forest-forming macroalga Ericaria amentacea: Optimizing growth in culture may not be the key to growth in the field. MARINE ENVIRONMENTAL RESEARCH 2024; 202:106718. [PMID: 39232470 DOI: 10.1016/j.marenvres.2024.106718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2024] [Revised: 08/11/2024] [Accepted: 08/29/2024] [Indexed: 09/06/2024]
Abstract
Evidence of local and regional declines in the canopy-forming alga Ericaria amentacea, a foundation species of diverse marine forest communities on exposed Mediterranean coasts, have spurred restoration efforts focused on sustainable ex-situ techniques. The need to balance the costs of culture maintenance and the susceptibility of early life stages to stressors in the native habitat, including rapid, often extreme shifts in temperature, hydrodynamics and nutrient availability, have driven current efforts to create a culture environment that primes seedlings for outplant, increasing their resilience rather than maximizing growth. We tested the effects of 1) higher culture temperature (25 °C) combined with wave simulation and 2) reduced nutrient loads (10% of standard protocol) with wave simulation on post-culture and post-outplant outcomes relative to optimal growth conditions in established protocols (20 °C, no waves, high-nutrient culture medium). While increased temperature and water motion negatively affected seedling growth in culture, and higher nutrients caused oxidative stress likely associated with enhanced epiphyte overgrowth, these effects were not clearly translated into patterns of long-term growth in the field. Instead, survival in the initial days post-outplant appeared to be the bottleneck for restoration potential, where substrates with persisting seedlings at one month were generally found with flourishing juveniles at four months. Larger clumps of seedlings, in turn, were strongly associated with both initial survival and future growth. These results underscore the importance of the zygote settlement phase to establish high seedling densities, which may be optimized by phenological monitoring of the donor population. They also suggest that less-controlled, more environmentally-realistic culture conditions involving the introduction of mild stress may enhance the survival of early life stages of E. amentacea during the transition to the native environment, providing a means to simultaneously reduce human resource costs in culture and move toward scaling up.
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Affiliation(s)
- Rachel J Clausing
- Department of Ecology and Evolutionary Biology, University of California, Los Angeles, CA, USA; Department of Earth, Environment and Life Sciences, University of Genoa, Genoa, Italy.
| | - Annalisa Falace
- Department of Life Sciences, University of Trieste, Trieste, Italy
| | - Gina De Le Fuente
- Department of Earth, Environment and Life Sciences, University of Genoa, Genoa, Italy
| | | | - Mariachiara Chiantore
- Department of Earth, Environment and Life Sciences, University of Genoa, Genoa, Italy; National Biodiversity Future Center, Palermo, Italy
| | - Valentina Asnaghi
- Department of Earth, Environment and Life Sciences, University of Genoa, Genoa, Italy; National Biodiversity Future Center, Palermo, Italy
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Rearte TA, Celis-Pla PSM, Abdala-Díaz R, Castro-Varela P, Marsili SN, García C, Cerón-García MC, Figueroa FL. Increase in polyunsaturated fatty acids and carotenoid accumulation in the microalga Golenkinia brevispicula (Chlorophyceae) by manipulating spectral irradiance and salinity. Biotechnol Bioeng 2024. [PMID: 39183489 DOI: 10.1002/bit.28831] [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: 04/01/2024] [Revised: 08/02/2024] [Accepted: 08/10/2024] [Indexed: 08/27/2024]
Abstract
Microalgal biotechnology offers a promising platform for the sustainable production of diverse renewable bioactive compounds. The key distinction from other microbial bioprocesses lies in the critical role that light plays in cultures, as it serves as a source of environmental information to control metabolic processes. Therefore, we can use these criteria to design a bioprocess that aims to stimulate the accumulation of target molecules by controlling light exposure. We study the effect on biochemical and photobiological responses of Golenkinia brevispicula FAUBA-3 to the exposition of different spectral irradiances (specifically, high-fluence PAR of narrow yellow spectrum complemented with low intensity of monochromatic radiations of red, blue, and UV-A) under prestress and salinity stress conditions. High light (HL) intensity coupled to salinity stress affected the photosynthetic activity and photoprotection mechanisms as shown by maximal quantum yield (Fv/Fm) and non-photochemical quenching (NPQmax) reduction, respectively. HL treatments combined with the proper dose of UV-A radiation under salinity stress induced the highest carotenoid content (2.75 mg g dry weight [DW]- 1) composed mainly of lutein and β-carotene, and the highest lipid accumulation (35.3% DW) with the highest polyunsaturated fatty acid content (alpha-linolenic acid (C18:3) and linoleic acid (C18:2)). Our study can guide the strategies for commercial indoor production of G. brevispicula for high-value metabolites.
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Affiliation(s)
- T A Rearte
- Cátedra de Química Inorgánica y Analítica, Departamento de Recursos Naturales y Ambiente, Facultad de Agronomía, Universidad de Buenos Aires, CABA, Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Buenos Aires, Argentina
| | - P S M Celis-Pla
- Laboratory of Aquatic Environmental Research (LACER)/HUB-AMBIENTAL UPLA, Playa Ancha University, Valparaíso, Chile
- Departamento de Ciencias y Geografía, Facultad de Ciencias Naturales y Exactas, Universidad de Playa Ancha, Valparaíso, Chile
| | - R Abdala-Díaz
- Universidad de Málaga, Instituto Andaluz de Biotecnología y Desarrollo Azul (IBYDA), Centro Experimental Grice Hutchinson, Málaga, Spain
| | - P Castro-Varela
- Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Concepción, Chile
| | - S N Marsili
- Cátedra de Química Inorgánica y Analítica, Departamento de Recursos Naturales y Ambiente, Facultad de Agronomía, Universidad de Buenos Aires, CABA, Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Buenos Aires, Argentina
| | - C García
- Universidad Nacional de Cuyo, Mendoza, Argentina
| | - M C Cerón-García
- Department of Chemical Engineering and Research Centre CIAIMBITAL, University of Almería, Almería, Spain
| | - F L Figueroa
- Universidad de Málaga, Instituto Andaluz de Biotecnología y Desarrollo Azul (IBYDA), Centro Experimental Grice Hutchinson, Málaga, Spain
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Rodríguez-Rojas F, Navarrete C, Rámila C, Tapia-Reyes P, Celis-Plá PSM, González C, Pereira-Rojas J, Blanco-Murillo F, Moreno P, Gutiérrez-Campos C, Sánchez-Lizaso JL, Sáez CA. Transcriptomic profiles and diagnostic biomarkers in the Mediterranean seagrasses Posidonia oceanica and Cymodocea nodosa reveal mechanistic insights of adaptative strategies upon desalination brine stress. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 916:170326. [PMID: 38266720 DOI: 10.1016/j.scitotenv.2024.170326] [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: 09/17/2023] [Revised: 12/26/2023] [Accepted: 01/19/2024] [Indexed: 01/26/2024]
Abstract
Seawater desalination by reverse osmosis is growing exponentially due to water scarcity. Byproducts of this process (e.g. brines), are generally discharged directly into the coastal ecosystem, causing detrimental effects, on benthic organisms. Understanding the cellular stress response of these organisms (biomarkers), could be crucial for establishing appropriate salinity thresholds for discharged brines. Early stress biomarkers can serve as valuable tools for monitoring the health status of brine-impacted organisms, enabling the prediction of long-term irreversible damage caused by the desalination industry. In this study, we conducted laboratory-controlled experiments to assess cellular and molecular biomarkers against brine exposure in two salinity-sensitive Mediterranean seagrasses: Posidonia oceanica and Cymodocea nodosa. Treatments involved exposure to 39, 41, and 43 psu, for 6 h and 7 days. Results indicated that photosynthetic performance remained unaffected across all treatments. However, under 43 psu, P. oceanica and C. nodosa exhibited lipid oxidative damage, which occurred earlier in P. oceanica. Additionally, P. oceanica displayed an antioxidant response at higher salinities by accumulating phenolic compounds within 6 h and ascorbate within 7 d; whereas for C. nodosa the predominant antioxidant mechanisms were phenolic compounds accumulation and total radical scavenging activity, which was evident after 7 d of brines exposure. Finally, transcriptomic analyses in P. oceanica exposed to 43 psu for 7 days revealed a poor up-regulation of genes associated with brassinosteroid response and abiotic stress response, while a high down-regulation of genes related to primary metabolism was detected. In C. nodosa, up-regulated genes were involved in DNA repair, cell cycle regulation, and reproduction, while down-regulated genes were mainly associated with photosynthesis and ribosome assembly. Overall, these findings suggest that 43 psu is a critical salinity-damage threshold for both seagrasses; and despite the moderate overexpression of several transcripts that could confer salt tolerance, genes involved in essential biological processes were severely downregulated.
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Affiliation(s)
- Fernanda Rodríguez-Rojas
- Laboratorio de Investigación Ambiental Acuático, HUB AMBIENTAL UPLA, Universidad de Playa Ancha. Subida Leopoldo Carvallo 207, acceso Hospital del Salvador, 2360004, Valparaíso, Chile; Departamento de Ciencias y Geografía, Facultad de Ciencias Naturales y Exactas, Universidad de Playa Ancha. Subida Leopoldo Carvallo 270, 2360004, Valparaíso, Chile. Valparaíso, Chile
| | - Camilo Navarrete
- Laboratorio de Investigación Ambiental Acuático, HUB AMBIENTAL UPLA, Universidad de Playa Ancha. Subida Leopoldo Carvallo 207, acceso Hospital del Salvador, 2360004, Valparaíso, Chile; Doctorado Interdisciplinario en Ciencias Ambientales, Facultad de Ciencias Naturales y Exactas, Universidad de Playa Ancha. Subida Leopoldo Carvallo 270, 2360004, Valparaíso, Chile
| | - Consuelo Rámila
- Laboratorio de Investigación Ambiental Acuático, HUB AMBIENTAL UPLA, Universidad de Playa Ancha. Subida Leopoldo Carvallo 207, acceso Hospital del Salvador, 2360004, Valparaíso, Chile
| | - Patricio Tapia-Reyes
- Escuela de Biotecnología, Facultad de Ciencias, Universidad Santo Tomás. Av. Ejército 146, 8370003, Santiago, Chile
| | - Paula S M Celis-Plá
- Laboratorio de Investigación Ambiental Acuático, HUB AMBIENTAL UPLA, Universidad de Playa Ancha. Subida Leopoldo Carvallo 207, acceso Hospital del Salvador, 2360004, Valparaíso, Chile; Departamento de Ciencias y Geografía, Facultad de Ciencias Naturales y Exactas, Universidad de Playa Ancha. Subida Leopoldo Carvallo 270, 2360004, Valparaíso, Chile. Valparaíso, Chile
| | - Christian González
- Escuela de Obras Civiles, Universidad Diego Portales. Av. Ejército 441, 8370191, Santiago, Chile
| | - Jeniffer Pereira-Rojas
- Laboratorio de Investigación Ambiental Acuático, HUB AMBIENTAL UPLA, Universidad de Playa Ancha. Subida Leopoldo Carvallo 207, acceso Hospital del Salvador, 2360004, Valparaíso, Chile; Doctorado Interdisciplinario en Ciencias Ambientales, Facultad de Ciencias Naturales y Exactas, Universidad de Playa Ancha. Subida Leopoldo Carvallo 270, 2360004, Valparaíso, Chile
| | - Fabio Blanco-Murillo
- Laboratorio de Investigación Ambiental Acuático, HUB AMBIENTAL UPLA, Universidad de Playa Ancha. Subida Leopoldo Carvallo 207, acceso Hospital del Salvador, 2360004, Valparaíso, Chile; Doctorado Interdisciplinario en Ciencias Ambientales, Facultad de Ciencias Naturales y Exactas, Universidad de Playa Ancha. Subida Leopoldo Carvallo 270, 2360004, Valparaíso, Chile; Departamento de Ciencias del Mar y Biología Aplicada, Universidad de Alicante, Carretera de San Vicente del Raspeig s/n, 03690, Alicante, Spain
| | - Pablo Moreno
- Laboratorio de Investigación Ambiental Acuático, HUB AMBIENTAL UPLA, Universidad de Playa Ancha. Subida Leopoldo Carvallo 207, acceso Hospital del Salvador, 2360004, Valparaíso, Chile
| | - Catalina Gutiérrez-Campos
- Laboratorio de Investigación Ambiental Acuático, HUB AMBIENTAL UPLA, Universidad de Playa Ancha. Subida Leopoldo Carvallo 207, acceso Hospital del Salvador, 2360004, Valparaíso, Chile
| | - José Luis Sánchez-Lizaso
- Departamento de Ciencias del Mar y Biología Aplicada, Universidad de Alicante, Carretera de San Vicente del Raspeig s/n, 03690, Alicante, Spain; Ciencias del Mar Universidad de Alicante, Unidad Asociada al CSIC por el IEO, Carretera de San Vicente del Raspeig s/n, 03690, Alicante, Spain
| | - Claudio A Sáez
- Laboratorio de Investigación Ambiental Acuático, HUB AMBIENTAL UPLA, Universidad de Playa Ancha. Subida Leopoldo Carvallo 207, acceso Hospital del Salvador, 2360004, Valparaíso, Chile; Departamento de Ciencias y Geografía, Facultad de Ciencias Naturales y Exactas, Universidad de Playa Ancha. Subida Leopoldo Carvallo 270, 2360004, Valparaíso, Chile. Valparaíso, Chile; Departamento de Ciencias del Mar y Biología Aplicada, Universidad de Alicante, Carretera de San Vicente del Raspeig s/n, 03690, Alicante, Spain.
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Xu J, Zhao X, Zhong Y, Qu T, Sun B, Zhang H, Hou C, Zhang Z, Tang X, Wang Y. Acclimation of intertidal macroalgae Ulva prolifera to UVB radiation: the important role of alternative oxidase. BMC PLANT BIOLOGY 2024; 24:143. [PMID: 38413873 PMCID: PMC10900725 DOI: 10.1186/s12870-024-04762-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 01/23/2024] [Indexed: 02/29/2024]
Abstract
BACKGROUND Solar radiation is primarily composed of ultraviolet radiation (UVR, 200 - 400 nm) and photosynthetically active radiation (PAR, 400 - 700 nm). Ultraviolet-B (UVB) radiation accounts for only a small proportion of sunlight, and it is the primary cause of plant photodamage. The use of chlorofluorocarbons (CFCs) as refrigerants caused serious ozone depletion in the 1980s, and this had led to an increase in UVB. Although CFC emissions have significantly decreased in recent years, UVB radiation still remains at a high intensity. UVB radiation increase is an important factor that influences plant physiological processes. Ulva prolifera, a type of macroalga found in the intertidal zone, is intermittently exposed to UVB. Alternative oxidase (AOX) plays an important role in plants under stresses. This research examines the changes in AOX activity and the relationships among AOX, photosynthesis, and reactive oxygen species (ROS) homeostasis in U. prolifera under changes in UVB and photosynthetically active radiation (PAR). RESULTS UVB was the main component of solar radiation impacting the typical intertidal green macroalgae U. prolifera. AOX was found to be important during the process of photosynthesis optimization of U. prolifera due to a synergistic effect with non-photochemical quenching (NPQ) under UVB radiation. AOX and glycolate oxidase (GO) worked together to achieve NADPH homeostasis to achieve photosynthesis optimization under changes in PAR + UVB. The synergism of AOX with superoxide dismutase (SOD) and catalase (CAT) was important during the process of ROS homeostasis under PAR + UVB. CONCLUSIONS AOX plays an important role in the process of photosynthesis optimization and ROS homeostasis in U. prolifera under UVB radiation. This study provides further insights into the response of intertidal macroalgae to solar light changes.
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Grants
- No. LSKJ202203605 Laoshan Laboratory
- Nos. 41906120, 42176204, 41976132, and 41706121 National Natural Science Foundation of China
- Nos. 41906120, 42176204, 41976132, and 41706121 National Natural Science Foundation of China
- Nos. 41906120, 42176204, 41976132, and 41706121 National Natural Science Foundation of China
- Nos. 41906120, 42176204, 41976132, and 41706121 National Natural Science Foundation of China
- Nos. U1806213 and U1606404 NSFC-Shandong Joint Fund
- Nos. U1806213 and U1606404 NSFC-Shandong Joint Fund
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Affiliation(s)
- Jinhui Xu
- College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China
| | - Xinyu Zhao
- Laoshan Laboratory, 1 Wenhai Road, Qingdao, 266237, China.
| | - Yi Zhong
- College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China
| | - Tongfei Qu
- College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China
| | - Baixue Sun
- College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China
| | - Huanxin Zhang
- College of Geography and Environment, Shandong Normal University, 1 Daxue Road, Jinan, 250000, China
| | - Chengzong Hou
- College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China
| | - Zhipeng Zhang
- Tianjin Research Institute for Water Transport Engineering, Ministry of Transport, Tianjin, 300456, China
| | - Xuexi Tang
- College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China
- Laboratory for Marine Ecology and Environmental Science, Qingdao Marine Science and Technology Center, 1 Wenhai Road, Qingdao, 266237, China
| | - Ying Wang
- College of Marine Life Sciences, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China.
- Laboratory for Marine Ecology and Environmental Science, Qingdao Marine Science and Technology Center, 1 Wenhai Road, Qingdao, 266237, China.
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Muguerza N, Quintano E, Díez I, García-Baquero G, Figueroa FL, Vega J, Gorostiaga JM. Split-plot marine experiment to assess ecophysiological responses of Gelidium corneum assemblages. MARINE ENVIRONMENTAL RESEARCH 2024; 194:106310. [PMID: 38150788 DOI: 10.1016/j.marenvres.2023.106310] [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: 09/30/2023] [Revised: 11/27/2023] [Accepted: 12/15/2023] [Indexed: 12/29/2023]
Abstract
Canopy-forming macroalgae are facing large declines due to climate change worldwide. The foundation species Gelidium corneum (Hudson) J.V. Lamouroux has shown a long-term decline in the Southeastern Bay of Biscay. We conducted an in situ experiment to investigate the combined effect of solar radiation and nutrient availability on the photosynthetic acclimation and growth of this macrophyte, and on the species richness and diversity of the assemblages that it forms. Photochemical stress in G. corneum was found to be greater at the end of the study, probably as a result of a prolonged exposure to high irradiance (PAR and UVR) and due to high temperatures during summer. We found an acclimation of G. corneum specimens to summer light and thermal conditions through dynamic/reversible photoinhibition and a decrease in photosynthetic efficiency. Nutrients may also have had a positive effect in dealing with the negative effects of these stressors. Under ongoing global climate change and projections for the future, further research will be needed to better understand the effects not only on canopy forming species but also on the whole community and thus on the functioning of the ecosystem.
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Affiliation(s)
- N Muguerza
- Laboratory of Botany, Department of Plant Biology and Ecology, Fac. of Science and Technology & Research Centre for Experimental Marine Biology and Biotechnology PIE-UPV/EHU, University of the Basque Country (UPV/EHU), PO Box 644, 48080, Bilbao, Spain.
| | - E Quintano
- Laboratory of Botany, Department of Plant Biology and Ecology, Fac. of Science and Technology & Research Centre for Experimental Marine Biology and Biotechnology PIE-UPV/EHU, University of the Basque Country (UPV/EHU), PO Box 644, 48080, Bilbao, Spain
| | - I Díez
- Laboratory of Botany, Department of Plant Biology and Ecology, Fac. of Science and Technology & Research Centre for Experimental Marine Biology and Biotechnology PIE-UPV/EHU, University of the Basque Country (UPV/EHU), PO Box 644, 48080, Bilbao, Spain
| | - G García-Baquero
- Department of Botany and Plant Physiology, Faculty of Pharmacy, University of Salamanca, Avda Licenciado Méndez Nieto s/n, 37007, Salamanca, Spain; Biodonostia Health Research Institute, Group of Environmental Epidemiology and Child Development, Paseo Doctor Begiristain s/n, 20014, Donostia- San Sebastián, Spain
| | - F L Figueroa
- Universidad de Málaga, Instituto Andaluz de Biotecnología y Desarrollo Azul (IBYDA), Centro Experimental Grice Hutchinson, Lomas de San Julián, 2, 29004, Malaga, Spain
| | - J Vega
- Universidad de Málaga, Instituto Andaluz de Biotecnología y Desarrollo Azul (IBYDA), Centro Experimental Grice Hutchinson, Lomas de San Julián, 2, 29004, Malaga, Spain
| | - J M Gorostiaga
- Laboratory of Botany, Department of Plant Biology and Ecology, Fac. of Science and Technology & Research Centre for Experimental Marine Biology and Biotechnology PIE-UPV/EHU, University of the Basque Country (UPV/EHU), PO Box 644, 48080, Bilbao, Spain
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Rosic N, Thornber C. Biotechnological Potential of Macroalgae during Seasonal Blooms for Sustainable Production of UV-Absorbing Compounds. Mar Drugs 2023; 21:633. [PMID: 38132954 PMCID: PMC10744652 DOI: 10.3390/md21120633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 11/27/2023] [Accepted: 12/05/2023] [Indexed: 12/23/2023] Open
Abstract
Marine macroalgae (seaweeds) are important primary global producers, with a wide distribution in oceans around the world from polar to tropical regions. Most of these species are exposed to variable environmental conditions, such as abiotic (e.g., light irradiance, temperature variations, nutrient availability, salinity levels) and biotic factors (e.g., grazing and pathogen exposure). As a result, macroalgae developed numerous important strategies to increase their adaptability, including synthesizing secondary metabolites, which have promising biotechnological applications, such as UV-absorbing Mycosporine-Like Amino Acid (MAAs). MAAs are small, water-soluble, UV-absorbing compounds that are commonly found in many marine organisms and are characterized by promising antioxidative, anti-inflammatory and photoprotective properties. However, the widespread use of MAAs by humans is often restricted by their limited bioavailability, limited success in heterologous expression systems, and low quantities recovered from the natural environment. In contrast, bloom-forming macroalgal species from all three major macroalgal clades (Chlorophyta, Phaeophyceae, and Rhodophyta) occasionally form algal blooms, resulting in a rapid increase in algal abundance and high biomass production. This review focuses on the bloom-forming species capable of producing pharmacologically important compounds, including MAAs, and the application of proteomics in facilitating macroalgal use in overcoming current environmental and biotechnological challenges.
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Affiliation(s)
- Nedeljka Rosic
- Faculty of Health, Southern Cross University, Gold Coast, QLD 4225, Australia
- Marine Ecology Research Centre, Southern Cross University, Lismore, NSW 2480, Australia
| | - Carol Thornber
- Department of Natural Resources Science, University of Rhode Island, 120 Flagg Road, Kingston, RI 02881, USA;
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Kasanah N, Ulfah M, Imania O, Hanifah AN, Marjan MID. Rhodophyta as Potential Sources of Photoprotectants, Antiphotoaging Compounds, and Hydrogels for Cosmeceutical Application. Molecules 2022; 27:7788. [PMID: 36431889 PMCID: PMC9697178 DOI: 10.3390/molecules27227788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 11/09/2022] [Accepted: 11/09/2022] [Indexed: 11/16/2022] Open
Abstract
Seaweeds are macroscopic, multicellular, eukaryotic and photosynthetic organisms, and are a source of chemical diversity with powerful biological activities for diversified industrial applications including cosmeceuticals. Red seaweeds (Rhodophyta) are good sources of Mycosporine-like amino acids (MAA) for photoprotectant and antiphotoaging compounds. In addition, Rhodophyta are also good sources for hydrogel compounds that are used widely in the food, pharmaceutical and cosmeceutical industries as gelling agents, moisturizers or for their antiphotoaging effects. Our survey and ongoing studies revealed that the biodiversity of Indonesian Rhodophyta is rich and is a treasure trove for cosmeceutical agents including MAA and hydrogels. This study delivers valuable information for identifying potential red seaweeds in screening and searching for cosmeceutical agents.
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Affiliation(s)
- Noer Kasanah
- Department of Fisheries, Faculty of Agriculture, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
- Integrated Agrocomplex Laboratory, Faculty of Agriculture, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
| | - Maria Ulfah
- Integrated Agrocomplex Laboratory, Faculty of Agriculture, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
| | - Okmalisda Imania
- Integrated Agrocomplex Laboratory, Faculty of Agriculture, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
| | - Annisa Nur Hanifah
- Integrated Agrocomplex Laboratory, Faculty of Agriculture, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
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Figueroa FL, Álvarez-Gómez F, Bonomi-Barufi J, Vega J, Massocato TF, Gómez-Pinchetti JL, Korbee N. Interactive effects of solar radiation and inorganic nutrients on biofiltration, biomass production, photosynthetic activity and the accumulation of bioactive compounds in Gracilaria cornea (Rhodophyta). ALGAL RES 2022. [DOI: 10.1016/j.algal.2022.102890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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9
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Celis-Plá PSM, Trabal A, Navarrete C, Troncoso M, Moenne F, Zúñiga A, Figueroa FL, Sáez CA. Daily changes on seasonal ecophysiological responses of the intertidal brown macroalga Lessonia spicata: Implications of climate change. FRONTIERS IN PLANT SCIENCE 2022; 13:941061. [PMID: 36247624 PMCID: PMC9554264 DOI: 10.3389/fpls.2022.941061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 09/01/2022] [Indexed: 06/16/2023]
Abstract
Global climate change is expected to have detrimental effects on coastal ecosystems, with impacts observable at the local and regional levels, depending on factors such as light, temperature, and nutrients. Shifts in dominance between primary producers that can capitalize on carbon availability for photosynthesis will have knock-on effects on marine ecosystems, affecting their ecophysiological responses and biological processes. Here, we study the ecophysiological vulnerability, photoacclimation capacity, and tolerance responses as ecophysiological responses of the intertidal kelp Lessonia spicata (Phaeophyceae, Laminariales) during a year through different seasons (autumn, winter, spring, and summer) in the Pacific Ocean (central Chile). Six different daily cycle experiments were carried out within each season. A battery of different biochemical assays associated with antioxidant responses and in-vivo chlorophyll a fluorescence parameter showed that during spring and summer, there was an increase in photosynthetic capacity in the macroalgae, although their responses varied depending on light and nutrient availability in the course of the year. Lessonia spicata showed maximal photosynthesis and a similar photoinhibition pattern in summer compared to the other seasons, and the contents of nitrate and phosphorous in seawater were less in winter. Thus, high irradiance during spring and summer displayed a higher maximal electron transport rate (ETRmax), irradiance of saturation (Ek), non-photochemical quenching (NPQmax), nitrogen and carbon contents, and photoprotector compound levels. Antioxidant activity increased also in summer, the seasonal period with the highest oxidative stress conditions, i.e., the highest level of hydrogen peroxide (H2O2). In contrast, under low irradiance, i.e., wintertime conditions, L. spicata demonstrated lower concentrations of the photosynthetic pigments such as chlorophyll a and carotenoids. Our study suggests that macroalgae that are subjected to increased irradiance and water temperature under lower nutrient availability mediated by seasonal changes (expected to worsen under climate change) respond with higher values of productivity, pigment contents, and photoprotective compounds. Thus, our findings strengthen the available evidence to predict that algae in the order Laminariales, specifically L. spicata (kelp), could better proliferate, with lower vulnerability and greater acclimation, than other marine species subject to future expected conditions associated with climate change.
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Affiliation(s)
- Paula S. M. Celis-Plá
- Laboratory of Aquatic Environmental Research (LACER), Centro de Estudios Avanzados (CEA)/HUB Ambiental UPLA, Universidad de Playa Ancha, Valparaíso, Chile
| | - Andres Trabal
- Laboratory of Aquatic Environmental Research (LACER), Centro de Estudios Avanzados (CEA)/HUB Ambiental UPLA, Universidad de Playa Ancha, Valparaíso, Chile
- Escuela de Ciencias Agrarias y Veterinarias, Universidad de Viña del Mar, Viña del Mar, Chile
| | - Camilo Navarrete
- Laboratory of Aquatic Environmental Research (LACER), Centro de Estudios Avanzados (CEA)/HUB Ambiental UPLA, Universidad de Playa Ancha, Valparaíso, Chile
- Doctorado Interdisciplinario en Ciencias Ambientales, Facultad de Ciencias Naturales y Exactas, Universidad de Playa Ancha, Valparaíso, Chile
| | - Macarena Troncoso
- Laboratory of Aquatic Environmental Research (LACER), Centro de Estudios Avanzados (CEA)/HUB Ambiental UPLA, Universidad de Playa Ancha, Valparaíso, Chile
- Doctorado Interdisciplinario en Ciencias Ambientales, Facultad de Ciencias Naturales y Exactas, Universidad de Playa Ancha, Valparaíso, Chile
| | - Fabiola Moenne
- Laboratory of Aquatic Environmental Research (LACER), Centro de Estudios Avanzados (CEA)/HUB Ambiental UPLA, Universidad de Playa Ancha, Valparaíso, Chile
| | - Antonio Zúñiga
- Laboratory of Aquatic Environmental Research (LACER), Centro de Estudios Avanzados (CEA)/HUB Ambiental UPLA, Universidad de Playa Ancha, Valparaíso, Chile
| | - Félix L. Figueroa
- Ecology Department, Institute of Blue Biotechnology and Development (IBYDA), University of Malaga, Malaga, Spain
| | - Claudio A. Sáez
- Laboratory of Aquatic Environmental Research (LACER), Centro de Estudios Avanzados (CEA)/HUB Ambiental UPLA, Universidad de Playa Ancha, Valparaíso, Chile
- Departamento de Ciencias del Mar y Biología Aplicada, Facultad de Ciencias, Universidad de Alicante, Alicante, Spain
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Chemello S, Signa G, Mazzola A, Ribeiro Pereira T, Sousa Pinto I, Vizzini S. Limited Stress Response to Transplantation in the Mediterranean Macroalga Ericaria amentacea, a Key Species for Marine Forest Restoration. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:12253. [PMID: 36231556 PMCID: PMC9566098 DOI: 10.3390/ijerph191912253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 09/19/2022] [Accepted: 09/20/2022] [Indexed: 06/16/2023]
Abstract
In the Mediterranean Sea, brown macroalgae represent the dominant species in intertidal and subtidal habitats. Despite conservation efforts, these canopy-forming species showed a dramatic decline, highlighting the urge for active intervention to regenerate self-sustaining populations. For this reason, the restoration of macroalgae forests through transplantation has been recognized as a promising approach. However, the potential stress caused by the handling of thalli has never been assessed. Here, we used a manipulative approach to assess the transplant-induced stress in the Mediterranean Ericaria amentacea, through the analysis of biochemical proxies, i.e., phenolic compounds, lipids, and fatty acids in both transplanted and natural macroalgae over time. The results showed that seasonal environmental variability had an important effect on the biochemical composition of macroalgae, suggesting the occurrence of acclimation responses to summer increased temperature and light irradiance. Transplant-induced stress appears to have only amplified the biochemical response, probably due to increased sensitivity of the macroalgae already subjected to mechanical and osmotic stress (e.g., handling, wounding, desiccation). The ability of E. amentacea to cope with both environmental and transplant-induced stress highlights the high plasticity of the species studied, as well as the suitability of transplantation of adult thalli to restore E. amentacea beds.
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Affiliation(s)
- Silvia Chemello
- Department of Earth and Marine Sciences (DiSTeM), University of Palermo, 90123 Palermo, Italy
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, 4450-208 Matosinhos, Portugal
| | - Geraldina Signa
- Department of Earth and Marine Sciences (DiSTeM), University of Palermo, 90123 Palermo, Italy
- Consorzio Nazionale Interuniversitario per le Scienze del Mare (CoNISMa), 00196 Rome, Italy
| | - Antonio Mazzola
- Department of Earth and Marine Sciences (DiSTeM), University of Palermo, 90123 Palermo, Italy
- Consorzio Nazionale Interuniversitario per le Scienze del Mare (CoNISMa), 00196 Rome, Italy
| | - Tania Ribeiro Pereira
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, 4450-208 Matosinhos, Portugal
| | - Isabel Sousa Pinto
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, 4450-208 Matosinhos, Portugal
| | - Salvatrice Vizzini
- Department of Earth and Marine Sciences (DiSTeM), University of Palermo, 90123 Palermo, Italy
- Consorzio Nazionale Interuniversitario per le Scienze del Mare (CoNISMa), 00196 Rome, Italy
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Assunção J, Pagels F, Tavares T, Malcata FX, Guedes AC. Light Modulation for Bioactive Pigment Production in Synechocystis salina. Bioengineering (Basel) 2022; 9:bioengineering9070331. [PMID: 35877382 PMCID: PMC9312138 DOI: 10.3390/bioengineering9070331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 07/14/2022] [Accepted: 07/18/2022] [Indexed: 11/16/2022] Open
Abstract
Cyanobacteria are microorganisms that are well-adapted to sudden changes in their environment, namely to light conditions. This has allowed them to develop mechanisms for photoprotection, which encompass alteration in pigment composition. Therefore, light modulation appears to be a suitable strategy to enhance the synthesis of specific pigments (e.g., phycocyanin) with commercial interest, in addition to conveying a more fundamental perspective on the mechanisms of acclimatization of cyanobacterium species. In this study, Synechocystis salina was accordingly cultivated in two light phase stages: (i) white LED, and (ii) shift to distinct light treatments, including white, green, and red LEDs. The type of LED lighting was combined with two intensities (50 and 150 µmolphotons·m−2·s−1). The effects on biomass production, photosynthetic efficiency, chlorophyll a (chl a) content, total carotenoids (and profile thereof), and phycobiliproteins (including phycocyanin, allophycocyanin, and phycoerythrin) were assessed. White light (under high intensity) led to higher biomass production, growth, and productivity; this is consistent with higher photosynthetic efficiency. However, chl a underwent a deeper impact under green light (high intensity); total carotenoids were influenced by white light (high intensity); whilst red treatment had a higher effect upon total and individual phycobiliproteins. Enhanced PC productivities were found under modulation with red light (low intensities), and could be achieved 7 days earlier than in white LED (over 22 days); this finding is quite interesting from a sustainability and economic point of view. Light modulation accordingly appears to be a useful tool for supplementary studies pertaining to optimization of pigment production with biotechnological interest.
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Affiliation(s)
- Joana Assunção
- CIIMAR /CIMAR-LA—Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Novo Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, s/n, 4450-208 Matosinhos, Portugal; (J.A.); (F.P.); (A.C.G.)
- LEPABE—Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, s/n, 4200-465 Porto, Portugal;
| | - Fernando Pagels
- CIIMAR /CIMAR-LA—Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Novo Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, s/n, 4450-208 Matosinhos, Portugal; (J.A.); (F.P.); (A.C.G.)
- FCUP—Faculty of Sciences, University of Porto, Rua do Campo Alegre, s/n, 4169-007 Porto, Portugal
| | - Tânia Tavares
- LEPABE—Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, s/n, 4200-465 Porto, Portugal;
- ALiCE—Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
| | - F. Xavier Malcata
- LEPABE—Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, s/n, 4200-465 Porto, Portugal;
- ALiCE—Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
- FEUP—Department of Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, s/n, 4200-465 Porto, Portugal
- Correspondence:
| | - A. Catarina Guedes
- CIIMAR /CIMAR-LA—Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Novo Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, s/n, 4450-208 Matosinhos, Portugal; (J.A.); (F.P.); (A.C.G.)
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Hafidh Al Mahrouqi, Dobretsov S, Avilés A, Díaz RTA. Spirulina Optimization Using Cane Molasses as the Cost-Effective Alternative of Sodium Bicarbonate. BIOL BULL+ 2022. [DOI: 10.1134/s106235902213012x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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13
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Lavergne C, Celis-Plá PSM, Chenu A, Rodríguez-Rojas F, Moenne F, Díaz MJ, Abello-Flores MJ, Díaz P, Garrido I, Bruning P, Verdugo M, Lobos MG, Sáez CA. Macroalgae metal-biomonitoring in Antarctica: Addressing the consequences of human presence in the white continent. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 292:118365. [PMID: 34656678 DOI: 10.1016/j.envpol.2021.118365] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 10/08/2021] [Accepted: 10/11/2021] [Indexed: 06/13/2023]
Abstract
Marine ecosystems in the Arctic and Antarctica were once thought pristine and away from important human influence. Today, it is known that global processes as atmospheric transport, local activities related with scientific research bases, military and touristic maritime traffic, among others, are a potential source of pollutants. Macroalgae have been recognized as reliable metal-biomonitoring organisms due to their accumulation capacity and physiological responses. Metal accumulation (Al, Cd, Cu, Fe, Pb, Zn, Se, and Hg) and photosynthetic parameters (associated with in vivo chlorophyll a fluorescence) were assessed in 77 samples from 13 different macroalgal species (Phaeophyta; Chlorophyta; Rhodophyta) from areas with high human influence, nearby research and sometimes military bases and a control area, King George Island, Antarctic Peninsula. Most metals in macroalgae followed a pattern influenced by rather algal lineage than site, with green seaweeds displaying trends of higher levels of metals as Al, Cu, Cr and Fe. Photosynthesis was also not affected by site, showing healthy organisms, especially in brown macroalgae, likely due to their great dimensions and morphological complexity. Finally, data did not demonstrate a relationship between metal accumulation and photosynthetic performance, evidencing low anthropogenic-derived impacts associated with metal excess in the area. Green macroalgae, especially Monostroma hariotti, are highlighted as reliable for further metal biomonitoring assessments. In the most ambitious to date seaweed biomonitoring effort conducted towards the Austral pole, this study improved by 91% the overall knowledge on metal accumulation in macroalgae from Antarctica, being the first report in species as Sarcopeltis antarctica and Plocamium cartilagineum. These findings may suggest that human short- and long-range metal influence on Antarctic coastal ecosystems still remains under control.
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Affiliation(s)
- Céline Lavergne
- Laboratory of Aquatic Environmental Research (LACER), Centro de Estudios Avanzados, HUB AMBIENTAL UPLA, Universidad de Playa Ancha, Valparaíso, Chile
| | - Paula S M Celis-Plá
- Laboratory of Aquatic Environmental Research (LACER), Centro de Estudios Avanzados, HUB AMBIENTAL UPLA, Universidad de Playa Ancha, Valparaíso, Chile
| | - Audran Chenu
- LIENSs, UMR 7266, Université de La Rochelle - CNRS, 2 rue Olympe de Gouges, La Rochelle, France
| | - Fernanda Rodríguez-Rojas
- Laboratory of Aquatic Environmental Research (LACER), Centro de Estudios Avanzados, HUB AMBIENTAL UPLA, Universidad de Playa Ancha, Valparaíso, Chile
| | - Fabiola Moenne
- Laboratory of Aquatic Environmental Research (LACER), Centro de Estudios Avanzados, HUB AMBIENTAL UPLA, Universidad de Playa Ancha, Valparaíso, Chile
| | - María José Díaz
- Laboratory of Aquatic Environmental Research (LACER), Centro de Estudios Avanzados, HUB AMBIENTAL UPLA, Universidad de Playa Ancha, Valparaíso, Chile; Faculty of Biology and Chemistry, University of Bremen, Bremen, Germany; Alfred Wegener Institut, Helmholtz-Zentrum für Polar- und Meeresforschung, Bremerhaven, Germany
| | - María Jesús Abello-Flores
- Laboratorio de Química Analítica y Ambiental, Departamento de Química y Bioquímica, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso, Chile
| | - Patricia Díaz
- Laboratorio de Química Analítica y Ambiental, Departamento de Química y Bioquímica, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso, Chile
| | - Ignacio Garrido
- Laboratorio Costero de Recursos Acuáticos de Calfuco, Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile; Department of Biology and Quebec-Ocean Institute, Laval University, Québec, QC, Canada
| | - Paulina Bruning
- Department of Biology and Quebec-Ocean Institute, Laval University, Québec, QC, Canada
| | - Marcelo Verdugo
- Laboratorio de Química Analítica y Ambiental, Departamento de Química y Bioquímica, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso, Chile
| | - M Gabriela Lobos
- Laboratorio de Química Analítica y Ambiental, Departamento de Química y Bioquímica, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso, Chile
| | - Claudio A Sáez
- Laboratory of Aquatic Environmental Research (LACER), Centro de Estudios Avanzados, HUB AMBIENTAL UPLA, Universidad de Playa Ancha, Valparaíso, Chile; Departamento de Ciencias del Mar y Biología Aplicada, Facultad de Ciencias, Universidad de Alicante, Alicante, Spain.
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Han J, Yin Y, Xu D, Wang H, Yu S, Han D, Niu Y, Xu R. Growth inhibition and oxidative damage of Microcystis aeruginosa induced by aqueous extract of different submerged macrophytes. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:53224-53238. [PMID: 34023990 DOI: 10.1007/s11356-021-14459-4] [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: 03/04/2021] [Accepted: 05/13/2021] [Indexed: 06/12/2023]
Abstract
With the increasing eutrophication of the aquatic environments, cyanobacteria blooms caused certain damage to the animals and plants in the aquatic environments. In this experiment, two species were selected from six species of submerged macrophytes, the experimental conditions were changed to achieve the best inhibitory effect on Microcystis aeruginosa, and oxidative damage analysis was carried out. The experiment results demonstrated that the inhibition rate of Vallisneria natans and Ceratophyllum demersum was nearly 100% at the concentration of 3 g/L after 15 days of anaerobic soaking extract. In addition, the longer the soaking time of the two submerged macrophytes, the weaker the photosynthesis effect, and the lower the chlorophyll fluorescence parameters, the more obvious the inhibition effect on M. aeruginosa. Lipid peroxidation injury of M. aeruginosa could be reflected by malondialdehyde (MDA) concentration. The MDA concentration in the experimental group was significantly higher than the control group. Results showed that V. natans and C. demersum could induce oxidative damage in M. aeruginosa. It was also observed that the secondary metabolites produced by V. natans were mainly fatty acids (e.g., the oxidative acid was 6.92 w/%, and the successful acid was 9.85 w/%) which inhibited M. aeruginosa in gas chromatography-mass spectrometry (GC-MS). The main secondary metabolites in C. demersum were hydroxyl acids (e.g., the 4-hydroxy-3-methoxyphenylacetic acid was 24.33 w/%), which could inhibit the algae through allelopathy. This study provided reference for submerged macrophytes to inhibit M. aeruginosa under different conditions.
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Affiliation(s)
- Jinlong Han
- College of Civil and Architectural Engineering, North China University of Science and Technology, Tangshan, 063000, People's Republic of China
| | - Yue Yin
- College of Civil and Architectural Engineering, North China University of Science and Technology, Tangshan, 063000, People's Republic of China
- North China University of Science and Technology Affiliated Hospital, Tangshan, 063000, People's Republic of China
| | - Duo Xu
- College of Civil and Architectural Engineering, North China University of Science and Technology, Tangshan, 063000, People's Republic of China
| | - Hao Wang
- College of Civil and Architectural Engineering, North China University of Science and Technology, Tangshan, 063000, People's Republic of China.
| | - Shuang Yu
- College of Civil and Architectural Engineering, North China University of Science and Technology, Tangshan, 063000, People's Republic of China
| | - Dongyun Han
- College of Chemical Engineering, North China University of Science and Technology, Tangshan, 063000, People's Republic of China
| | - Yunxia Niu
- College of Civil and Architectural Engineering, North China University of Science and Technology, Tangshan, 063000, People's Republic of China
| | - Runyu Xu
- College of Civil and Architectural Engineering, North China University of Science and Technology, Tangshan, 063000, People's Republic of China
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15
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Giraldo ND, Correa SM, Arbeláez A, Figueroa FL, Ríos-Estepa R, Atehortúa L. Reducing self-shading effects in Botryococcus braunii cultures: effect of Mg 2+ deficiency on optical and biochemical properties, photosynthesis and lipidomic profile. BIORESOUR BIOPROCESS 2021; 8:33. [PMID: 38650232 PMCID: PMC10992481 DOI: 10.1186/s40643-021-00389-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 04/23/2021] [Indexed: 11/10/2022] Open
Abstract
Microalgae biomass exploitation as a carbon-neutral energy source is currently limited by several factors, productivity being one of the most relevant. Due to the high absorption properties of light-harvesting antenna, photosynthetic cells tend to capture an excessive amount of energy that cannot be entirely channeled through the electron transfer chain that ends up dissipated as heat and fluorescence, reducing the overall light use efficiency. Aiming to minimize this hurdle, in this work we studied the effect of decreasing concentrations of Magnesium (Mg2+) on the chlorophyll a content, photosynthetic performance, biomass and lipid production of autotrophic cultures of Botryococcus braunii LB 572. We also performed, for the first time, a comparative lipidomic analysis to identify the influence of limited Mg2+ supply on the lipid profile of this algae. The results indicated that a level of 0.0037 g L-1 MgSO4 caused a significant decline on chlorophyll a content with a concomitant 2.3-fold reduction in the biomass absorption coefficient. In addition, the Mg2+ limitation caused a decrease in the total carbohydrate content and triggered lipid accumulation, achieving levels of up to 53% DCW, whereas the biomass productivity remained similar for all tested conditions. The lipidome analysis revealed that the lowest Mg2+ concentrations also caused a differential lipid profile distribution, with an enrichment of neutral lipids and an increase of structural lipids. In that sense, we showed that Mg2+ limitation represents an alternative optimization approach that not only enhances accumulation of neutral lipids in B. braunii cells but also may potentially lead to a better areal biomass productivity due to the reduction in the cellular light absorption properties of the cells.
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Affiliation(s)
- Néstor David Giraldo
- Grupo de Biotecnología, Instituto de Biología, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 67 No. 53-108, Medellín, Colombia.
| | - Sandra Marcela Correa
- Max Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, Potsdam, Germany
| | - Andrés Arbeláez
- Grupo de Biotecnología, Instituto de Biología, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 67 No. 53-108, Medellín, Colombia
| | - Felix L Figueroa
- Institute of Biotechnology and Blue Development (IBYDA), University of Malaga, Campus Universitario de Teatinos s/n, 29071, Málaga, Spain
| | - Rigoberto Ríos-Estepa
- Grupo de Bioprocesos, Departamento de Ingeniería Química, Universidad de Antioquia UdeA, Calle 67 No. 53-108, Medellín, Colombia
| | - Lucía Atehortúa
- Grupo de Biotecnología, Instituto de Biología, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA, Calle 67 No. 53-108, Medellín, Colombia
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Naiel MA, Alagawany M, Patra AK, El-Kholy AI, Amer MS, Abd El-Hack ME. Beneficial impacts and health benefits of macroalgae phenolic molecules on fish production. AQUACULTURE 2021; 534:736186. [DOI: 10.1016/j.aquaculture.2020.736186] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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17
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Figueroa FL, Bonomi-Barufi J, Celis-Plá PSM, Nitschke U, Arenas F, Connan S, Abreu MH, Malta EJ, Conde-Álvarez R, Chow F, Mata MT, Meyerhoff O, Robledo D, Stengel DB. Short-term effects of increased CO2, nitrate and temperature on photosynthetic activity in Ulva rigida (Chlorophyta) estimated by different pulse amplitude modulated fluorometers and oxygen evolution. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:491-509. [PMID: 33064811 DOI: 10.1093/jxb/eraa473] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 10/13/2020] [Indexed: 05/16/2023]
Abstract
Short-term effects of pCO2 (700-380 ppm; High carbon (HC) and Low carbon (LC), respectively) and nitrate content (50-5 µM; High nitrogen (HN) and Low nitrogen (LN), respectively on photosynthesis were investigated in Ulva rigida (Chlorophyta) under solar radiation (in-situ) and in the laboratory under artificial light (ex-situ). After six days of incubation at ambient temperature (AT), algae were subjected to a 4 °C temperature increase (AT+4 °C) for 3 d. Both in-situ and ex-situ maximal electron transport rate (ETRmax) and in situ gross photosynthesis (GP), measured by O2 evolution, presented highest values under HCHN, and lowest under HCLN, across all measuring systems. Maximal quantum yield (Fv/Fm), and ETRmax of photosystem (PS) II [ETR(II)max] and PSI [ETR(I)max], decreased under HCLN at AT+4 °C. Ex situ ETR was higher than in situ ETR. At noon, Fv/Fm decreased (indicating photoinhibition), whereas ETR(II)max and maximal non-photochemical quenching (NPQmax) increased. ETR(II)max decreased under AT+ 4 °C in contrast to Fv/Fm, photosynthetic efficiency (α ETR) and saturated irradiance (EK). Thus, U. rigida exhibited a decrease in photosynthesis under acidification, changing LN, and AT+4 °C. These results emphasize the importance of studying the interaction between environmental parameters using in-situ versus ex-situ conditions, when aiming to evaluate the impact of global change on marine macroalgae.
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Affiliation(s)
- Felix L Figueroa
- Malaga University. Institute of Blue Biotechnology and Development (IBYDA), Ecology department, Faculty of Sciences, Campus universitario de Teatinos s/n, Malaga, Spain
| | - Jose Bonomi-Barufi
- Botany department, Federal University of Santa Catarina. Campus Trindade s/n, Florianópolis, SC, Brazil
| | - Paula S M Celis-Plá
- Laboratory of Coastal Environmental Research, Center of Advances Studies. University of Playa Ancha. Traslaviña, Viña del Mar, Chile
- Hub Ambiental UPLA, Vicerrectoría de Investigación, Postgrado e Innovación, Universidad de Playa Ancha, Valparaíso, Chile
| | - Udo Nitschke
- Botany and Plant Science, School of Natural Sciences, Ryan Institute for Environmental, Marine and Energy Research, National University of Ireland Galway, Galway, Ireland
| | - Francisco Arenas
- CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Rua dos Bragas, Porto, Portugal
| | - Solene Connan
- CNRS, GEPEA, UMR6144, Boulevard de l'Université, CRTT BP, Saint Nazaire Cedex, France
- Univ Brest, CNRS, IRD, Ifremer, Lemar, Plouzane, France
| | | | - Erik-J Malta
- Centro IFAPA Agua del Pino, Crtra. El Rómpido - Punta Umbría, Cartaya (Huelva), Spain
| | - Rafael Conde-Álvarez
- Malaga University. Institute of Blue Biotechnology and Development (IBYDA), Ecology department, Faculty of Sciences, Campus universitario de Teatinos s/n, Malaga, Spain
| | - Fungyi Chow
- Department of Botany, University of São Paulo, Rua do Matão, São Paulo, SP, Brazil
| | - Maria Teresa Mata
- Centro de Bioinnovación Antofagasta (CBIA), Faculty of Marine Sciences and Biological Resources, Antofagasta University, Antofagasta, Chile
| | - O Meyerhoff
- Heinz Walz GmbH Eichenring 6 - 91090 Effeltrich, Germany
| | - Daniel Robledo
- CIVESTAV-IPN, Unidad Mérida Km6 Antigua Carretera a Progreso Apartado Postal Cordemex, Mérida, Yucatán, México
| | - Dagmar B Stengel
- Botany and Plant Science, School of Natural Sciences, Ryan Institute for Environmental, Marine and Energy Research, National University of Ireland Galway, Galway, Ireland
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Palacios M, Osman D, Ramírez J, Huovinen P, Gómez I. Photobiology of the giant kelp Macrocystis pyrifera in the land-terminating glacier fjord Yendegaia (Tierra del Fuego): A look into the future? THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 751:141810. [PMID: 32882566 DOI: 10.1016/j.scitotenv.2020.141810] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 08/17/2020] [Accepted: 08/18/2020] [Indexed: 05/16/2023]
Abstract
The channel and fjord region of southern Chilean Patagonia hosts giant kelp forests (Macrocystis pyrifera) that have little known site-specific responses to diverse physical gradients. In this study, the functionality of the bio-optical, morphological and biochemical features of the kelps, that determine their light trapping and acclimation, were studied along a gradient of varying turbidity and light conditions at the land-terminating glacier of fjord Yendegaia in the Beagle Channel. These habitats are marked by glacial retreat, and M. pyrifera has successfully colonized new areas due to the effects of warming. Results indicated that under a sharp gradient of turbidity and light availability, the kelps have adapted shading characteristics. The photobiological traits (e.g. light absorption, pigment concentration, photochemistry and blade optics) of algae from depths between 6 and 13 m varied in relation to the degree of turbidity along the fjord. However, these populations did not show obvious intra-thallus variation along the longitudinal profile e.g. blades located at different depths showed relatively similar acclimation potential to the prevailing light field. Only basal sporophylls showed general differences in comparison with the vegetative fronds. Otherwise, the high phenolic (phlorotannin) content, which was reflected in the massive presence of intracellular physodes, suggests that these organisms could be biochemically well-equipped to cope with changes in physical conditions or the presence of herbivore invertebrates (e.g. sea urchins).
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Affiliation(s)
- Mauricio Palacios
- Programa de Doctorado en Biología Marina, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile; Centro FONDAP de Investigación en Dinámica de Ecosistemas Marinos de Altas Latitudes (IDEAL), Valdivia, Chile; Facultad de Ciencias, Universidad de Magallanes, Punta Arenas, Chile.
| | - Dayane Osman
- Instituto de Ciencias Marinas y Limnológicas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile; Centro FONDAP de Investigación en Dinámica de Ecosistemas Marinos de Altas Latitudes (IDEAL), Valdivia, Chile
| | - Jaime Ramírez
- Instituto de Ciencias Marinas y Limnológicas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile; Centro FONDAP de Investigación en Dinámica de Ecosistemas Marinos de Altas Latitudes (IDEAL), Valdivia, Chile
| | - Pirjo Huovinen
- Instituto de Ciencias Marinas y Limnológicas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile; Centro FONDAP de Investigación en Dinámica de Ecosistemas Marinos de Altas Latitudes (IDEAL), Valdivia, Chile
| | - Iván Gómez
- Instituto de Ciencias Marinas y Limnológicas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile; Centro FONDAP de Investigación en Dinámica de Ecosistemas Marinos de Altas Latitudes (IDEAL), Valdivia, Chile
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Celis-Plá PSM, Kappes JL, Figueroa FL, Pereda SV, Villegas K, Altamirano R, Hernández-González MC, Buschmann AH. Solar Radiation as an Isolated Environmental Factor in an Experimental Mesocosm Approach for Studying Photosynthetic Acclimation of Macrocystis pyrifera (Ochrophyta). FRONTIERS IN PLANT SCIENCE 2021; 12:622150. [PMID: 34276713 PMCID: PMC8283697 DOI: 10.3389/fpls.2021.622150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 06/04/2021] [Indexed: 05/17/2023]
Abstract
Solar radiation effects on the ecophysiology and biochemical responses of the brown macroalga Macrocystis pyrifera (L.) C. Agardh were evaluated using a mesocosm approach in Southern Chile. Treatments with different radiation attenuations were simulated with three vertical attenuation coefficients: (1) total (Kd = 0.8 m-1), (2) attenuated (Kd = 1.2 m-1), and (3) low (Kd = 1.6 m-1) radiation levels. Nutrient concentration and temperature did not show differences under the three light conditions. Photosynthetic activity was estimated by in vivo chlorophyll a (Chla) fluorescence under the three light treatments as an isolated physical factor in both in situ solar radiation in the field. This was achieved using a pulse amplitude-modulated (PAM) fluorometera-Diving PAM (in situ). Photosynthetic activity and biochemical composition were measured in winter during two daily cycles (1DC and 2DC) in different parts of the thalli of the plant: (1) canopy zone, (2) middle zone, and (3) down zone, associated with different depths in the mesocosm system. Nevertheless, the in situ electron transport rate (ETR in situ ) was higher in the exposed thalli of the canopy zone, independent of the light treatment conditions. The concentration of phenolic compounds (PC) increases in the down zone in the first daily cycle, and it was higher in the middle zone in the second daily cycle. The Chla increased in the morning time under total and attenuated radiation in the first daily cycle. Solar radiation increasing at midday prompted the photoinhibition of photosynthesis in the canopy zone but also an increase in productivity and phenol content. Therefore, light attenuation in the water column drove key differences in the photo-physiological responses of M. pyrifera, with the highest productivity occurring in thalli positioned in the canopy zone when exposed to solar irradiance.
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Affiliation(s)
- Paula S. M. Celis-Plá
- Laboratory of Aquatic Environmental Research (LACER), Centro de Estudios Avanzados, Universidad de Playa Ancha, Viña del Mar, Chile
- HUB Ambiental Universidad de Playa Ancha (UPLA), Vicerrectoría de Investigación Postgrado e Innovación, Universidad de Playa Ancha, Valparaíso, Chile
- Paula S. M. Celis-Plá
| | - José Luis Kappes
- Centro de Investigación y Desarrollo de Ambientes y Recursos Costeros (Centro i-mar) and Centro de Biotecnología y Bioingenería (CeBiB), Universidad de Los Lagos, Puerto Montt, Chile
| | - Félix L. Figueroa
- Department of Ecology and Geology, Faculty of Sciences, Institute of Biotechnology and Blue Development (IBYDA), University of Malaga, Malaga, Spain
| | - Sandra V. Pereda
- Centro de Investigación y Desarrollo de Ambientes y Recursos Costeros (Centro i-mar) and Centro de Biotecnología y Bioingenería (CeBiB), Universidad de Los Lagos, Puerto Montt, Chile
| | - Karina Villegas
- Centro de Investigación y Desarrollo de Ambientes y Recursos Costeros (Centro i-mar) and Centro de Biotecnología y Bioingenería (CeBiB), Universidad de Los Lagos, Puerto Montt, Chile
| | - Robinson Altamirano
- Centro de Investigación y Desarrollo de Ambientes y Recursos Costeros (Centro i-mar) and Centro de Biotecnología y Bioingenería (CeBiB), Universidad de Los Lagos, Puerto Montt, Chile
| | - María Carmen Hernández-González
- Centro de Investigación y Desarrollo de Ambientes y Recursos Costeros (Centro i-mar) and Centro de Biotecnología y Bioingenería (CeBiB), Universidad de Los Lagos, Puerto Montt, Chile
| | - Alejandro H. Buschmann
- Centro de Investigación y Desarrollo de Ambientes y Recursos Costeros (Centro i-mar) and Centro de Biotecnología y Bioingenería (CeBiB), Universidad de Los Lagos, Puerto Montt, Chile
- *Correspondence: Alejandro H. Buschmann
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20
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Seasonal Photoacclimation and Vulnerability Patterns in the Brown Macroalga Lessonia spicata (Ochrophyta). WATER 2020. [DOI: 10.3390/w13010006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Fluctuations in solar radiation are one of the key factors affecting productivity and survival in habitat forming coastal macroalgae, in this regard, photoacclimation has a direct impact on the vulnerability and the capacity of seaweed to withstand, for instance, radiation excess. Here, we study ecophysiological responses through photosynthetic activity measurements under time-dependent (one year) fluctuations in solar radiation in the brown macroalga L. spicata. The responses presented seasonal patterns, with an increase in photosynthetic capacity during summer, expressed in greater maximal electron transport rate (ETRmax) and diminished thermal dissipation (NPQmax). Moreover, we studied photoprotective compounds (phenolic compounds) and total antioxidant capacity, which demonstrated an increase during periods of high solar radiation. In addition, content of photosynthetic pigment (Chla, Chlc and Carotenoids) increased under greater solar irradiance. The L. spicata can accumulate as reservoir photoprotective and antioxidant substances to withstand periods of high solar irradiance. All ecophysiological and biochemical responses in L. spicata indicate high photoacclimation and low vulnerability in the species, especially during with greater levels of solar irradiance.
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21
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Celis-Plá PSM, Moenne F, Rodríguez-Rojas F, Pardo D, Lavergne C, Moenne A, Brown MT, Huovinen P, Gómez I, Navarro N, Sáez CA. Antarctic intertidal macroalgae under predicted increased temperatures mediated by global climate change: Would they cope? THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 740:140379. [PMID: 32927555 DOI: 10.1016/j.scitotenv.2020.140379] [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: 02/19/2020] [Revised: 06/14/2020] [Accepted: 06/18/2020] [Indexed: 06/11/2023]
Abstract
The Antarctic Peninsula is one of the regions to be most affected by increase in sea surface temperatures (SSTs) mediated by Global Climate Change; indeed, most negative predictions imply an up to 6 °C increment by the end of the XXI century. Temperature is one of the most important factors mediating diversity and distribution of macroalgae, although there is still no consensus as to the likely effects of higher SSTs, especially for polar seaweeds. Some available information suggests that potential strategies to withstand future increases in SSTs will be founded upon the glutathione-ascorbate cycle and the induction of chaperone-functioning heat shock proteins (HSPs); however, their eventual role, even for general stress responses, is unclear. The intertidal green, brown and red macroalgae species Monostroma hariotii, Adenocystis utricularis and Pyropia endiviifolia, respectively, from King George Island, Antarctic Peninsula, were exposed to 2 °C (control) and 8 °C (climate change scenario) for up to 5 days (d). Photosynthetic activity (αETR and ETRmax, and EkETR), photoinhibition (Fv/Fm) and photoprotection processes (αNPQ, NPQmax, and EkNPQ) provided no evidence of negative ecophysiological effects. There were moderate increases in H2O2 production and levels of lipid peroxidation with temperature, results supported by stable levels of total glutathione and ascorbate pools, with mostly higher levels of reduced ascorbate and glutathione than oxidized forms in all species. Transcripts of P. endiviifolia indicated a general upregulation of all antioxidant enzymes and HSPs genes studied under warmer temperature, although with different levels of activation with time. This pioneering investigation exploring different levels of biological organization, suggested that Antarctic intertidal macroalgae may be able to withstand future rise in SSTs, probably slightly altering their latitudinal distribution and/or range of thermal tolerance, by exhibiting robust glutathione-ascorbate production and recycling, as well as the induction of associated antioxidant enzymatic machinery and the syntheses of HSPs.
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Affiliation(s)
- Paula S M Celis-Plá
- Laboratory of Aquatic Environmental Research, Centro de Estudios Avanzados, Universidad de Playa Ancha, Viña del Mar, Chile; HUB Ambiental UPLA, Universidad de Playa Ancha, Valparaíso, Chile
| | - Fabiola Moenne
- Laboratory of Aquatic Environmental Research, Centro de Estudios Avanzados, Universidad de Playa Ancha, Viña del Mar, Chile; HUB Ambiental UPLA, Universidad de Playa Ancha, Valparaíso, Chile
| | - Fernanda Rodríguez-Rojas
- Laboratory of Aquatic Environmental Research, Centro de Estudios Avanzados, Universidad de Playa Ancha, Viña del Mar, Chile; HUB Ambiental UPLA, Universidad de Playa Ancha, Valparaíso, Chile
| | - Diego Pardo
- Laboratory of Aquatic Environmental Research, Centro de Estudios Avanzados, Universidad de Playa Ancha, Viña del Mar, Chile; HUB Ambiental UPLA, Universidad de Playa Ancha, Valparaíso, Chile; Departamento de Medio Ambiente, Facultad de Ingeniería, Universidad de Playa Ancha, Valparaíso, Chile
| | - Céline Lavergne
- Laboratory of Aquatic Environmental Research, Centro de Estudios Avanzados, Universidad de Playa Ancha, Viña del Mar, Chile; HUB Ambiental UPLA, Universidad de Playa Ancha, Valparaíso, Chile; Escuela Ingeniería Bioquímica, Pontificia Universidad Católica de Valparaíso, Avenida Brasil 2085, 2340950 Valparaíso, Chile
| | - Alejandra Moenne
- Laboratory of Marine Biotechnology, Departamento de Biología, Facultad de Química y Biología, Estación Central, Chile
| | - Murray T Brown
- School of Biological and Marine Sciences, University of Plymouth, Plymouth, United Kingdom
| | - Pirjo Huovinen
- Instituto de Ciencias Marinas y Limnológicas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile; Centro de Investigación Dinámica de Ecosistemas Marinos de Altas Latitudes (IDEAL), Valdivia, Punta Arenas, Chile
| | - Iván Gómez
- Instituto de Ciencias Marinas y Limnológicas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile; Centro de Investigación Dinámica de Ecosistemas Marinos de Altas Latitudes (IDEAL), Valdivia, Punta Arenas, Chile
| | - Nelso Navarro
- Centro de Investigación Dinámica de Ecosistemas Marinos de Altas Latitudes (IDEAL), Valdivia, Punta Arenas, Chile; Departamento de Ciencias y Recursos Naturales, Facultad de Ciencias, Universidad de Magallanes, Punta Arenas, Chile
| | - Claudio A Sáez
- Laboratory of Aquatic Environmental Research, Centro de Estudios Avanzados, Universidad de Playa Ancha, Viña del Mar, Chile; HUB Ambiental UPLA, Universidad de Playa Ancha, Valparaíso, Chile.
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22
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Muñoz PT, Rodríguez-Rojas F, Celis-Plá PSM, Méndez L, Pinto D, Pardo D, Moenne F, Sánchez-Lizaso JL, Sáez CA. Physiological and metabolic responses to hypersalinity reveal interpopulation tolerance in the green macroalga Ulva compressa with different pollution histories. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2020; 225:105552. [PMID: 32615475 DOI: 10.1016/j.aquatox.2020.105552] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 05/12/2020] [Accepted: 06/16/2020] [Indexed: 06/11/2023]
Abstract
There is scarce investigation addressing interpopulation tolerance responses to address the influence of a history of chronic stress exposure, as that occurring in polluted environments, in photoautotrophs. We evaluated ecophysiological (photosynthetic activity) and metabolic (oxidative stress and damage) responses of two populations of green macroalga Ulva compressa from polluted (Ventanas) and non-polluted (Cachagua) localions of central Chile, and exposed to controlled hypersalinity conditions of 32 (control), 42, 62 and 82 psu (practical salinity units) for 6 h, 48 h and 6 d. Both primary production (ETRmax) and photosynthetic efficiency (αETR) were generally higher in the population from Cachagua compared to Ventanas at all times and salinities. Moreover, at most experimental times and salinities the population from Ventanas had greater levels of H2O2 and lipid peroxidation that individuals from Cachagua. Total ascorbate was higher in the population of Cachagua than Ventanas at 42 and 82 psu after 6 and 48 h, respectively, while at 6 d concentrations were similar between both populations at all salinities. Total glutathione was greater in both populations after 6 h at all salinities, but at 48 h its concentrations were higher only in the population from Cachagua, a trend that was maintained at 6 d under 82 psu only. Reduced and oxidized ascorbate (ASC and DHA, respectively) and glutathione (GSH and GSSG, respectively) demonstrated similar patterns between U. compressa populations, with an increase oxidation with greater salinities but efficient recycling to maintain sufficient batch of ASC and GSH. When assessing the expression of antioxidant enzymes catalase (CAT), superoxide dismutase (SOD) and dehydroascorbate reductase (DHAR), while the population of Ventanas displayed a general trend of upregulation with increasing salinities along the experiments, U. compressa from Cachagua revealed patterns of downregulation. Results demonstrated that although both populations were still viable after the applied hypersalinities during all experimental times, biological performance was usually more affected in the population from the Ventanas than Cachagua, likely due to a depressed baseline metabolism after a long history of exposition to environmental pollution.
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Affiliation(s)
- Pamela T Muñoz
- Laboratory of Aquatic Environmental Research, Centro de Estudios Avanzados, Universidad de Playa Ancha, Viña del Mar, Chile; Doctorado Interdisciplinario en Ciencias Ambientales, Facultad de Ciencias Naturales y Exactas, Universidad de Playa Ancha, Valparaíso, Chile; Doctorado en Ciencias del Mar y Biología Aplicada, Departamento de Ciencias del Mar y Biología Aplicada, Universidad de Alicante, Alicante, Spain; ENVIRONMENTAL HUB UPLA, Universidad de Playa Ancha, Valparaíso, Chile
| | - Fernanda Rodríguez-Rojas
- Laboratory of Aquatic Environmental Research, Centro de Estudios Avanzados, Universidad de Playa Ancha, Viña del Mar, Chile; ENVIRONMENTAL HUB UPLA, Universidad de Playa Ancha, Valparaíso, Chile
| | - Paula S M Celis-Plá
- Laboratory of Aquatic Environmental Research, Centro de Estudios Avanzados, Universidad de Playa Ancha, Viña del Mar, Chile; ENVIRONMENTAL HUB UPLA, Universidad de Playa Ancha, Valparaíso, Chile
| | - Lorena Méndez
- Laboratory of Aquatic Environmental Research, Centro de Estudios Avanzados, Universidad de Playa Ancha, Viña del Mar, Chile; Carrera de Biología Marina, Facultad de Ciencias del Mar y Recursos Naturales, Universidad de Valparaíso, Viña del Mar, Chile
| | - Denise Pinto
- Laboratory of Aquatic Environmental Research, Centro de Estudios Avanzados, Universidad de Playa Ancha, Viña del Mar, Chile; Doctorado Interdisciplinario en Ciencias Ambientales, Facultad de Ciencias Naturales y Exactas, Universidad de Playa Ancha, Valparaíso, Chile; ENVIRONMENTAL HUB UPLA, Universidad de Playa Ancha, Valparaíso, Chile
| | - Diego Pardo
- Laboratory of Aquatic Environmental Research, Centro de Estudios Avanzados, Universidad de Playa Ancha, Viña del Mar, Chile; Carrera de Ingeniería Civil Ambiental, Facultad de Ingeniería, Universidad de Playa Ancha, Valparaíso, Chile; ENVIRONMENTAL HUB UPLA, Universidad de Playa Ancha, Valparaíso, Chile
| | - Fabiola Moenne
- Laboratory of Aquatic Environmental Research, Centro de Estudios Avanzados, Universidad de Playa Ancha, Viña del Mar, Chile; ENVIRONMENTAL HUB UPLA, Universidad de Playa Ancha, Valparaíso, Chile
| | | | - Claudio A Sáez
- Laboratory of Aquatic Environmental Research, Centro de Estudios Avanzados, Universidad de Playa Ancha, Viña del Mar, Chile; ENVIRONMENTAL HUB UPLA, Universidad de Playa Ancha, Valparaíso, Chile.
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23
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Jofre J, Celis-Plá PSM, Figueroa FL, Navarro NP. Seasonal Variation of Mycosporine-Like Amino Acids in Three Subantarctic Red Seaweeds. Mar Drugs 2020; 18:E75. [PMID: 31991623 PMCID: PMC7074333 DOI: 10.3390/md18020075] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 01/10/2020] [Accepted: 01/21/2020] [Indexed: 12/25/2022] Open
Abstract
UV-absorbing compounds, such as mycosporine-like amino acids (MAAs), are a group of secondary metabolites present in many marine species, including red seaweeds. In these organisms, the content and proportion of the composition of MAAs vary, depending on the species and several environmental factors. Its high cosmetic interest calls for research on the content and composition of MAAs, as well as the dynamics of MAAs accumulation in seaweeds from different latitudes. Therefore, this study aimed to survey the content of UV-absorbing MAAs in three Subantarctic red seaweeds during a seasonal cycle. Using spectrophotometric and HPLC techniques, the content and composition of MAAs of intertidal Iridaea tuberculosa, Nothogenia fastigiate, and Corallina officinalis were assessed. Some samples were also analyzed using high-resolution mass spectrometry coupled with HPLC-ESI-MS in order to identify more precisely the MAA composition. I. tuberculosa exhibited the highest MAA values (above 1 mg g-1 of dried mass weight), while C. officinalis showed values not exceeding 0.4 mg g-1. Porphyra-334 was the main component in N. fastigiata, whereas I. tuberculosa and C. officinalis exhibited a high content of palythine. Both content and composition of MAAs varied seasonally, with high concentration recorded in different seasons, depending on the species, i.e., winter (I. tuberculosa), spring (N. fastigiata), and summer (C. officinalis). HPLC-ESI-MS allowed us to identify seven different MAAs. Two were recorded for the first time in seaweeds from Subantarctic areas (mycosporine-glutamic acid and palythine-serine), and we also recorded an eighth UV-absorbing compound which remains unidentified.
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Affiliation(s)
- Jocelyn Jofre
- Laboratorio de Ecofisiología y Biotecnología de Algas (LEBA), Facultad de Ciencias, Universidad de Magallanes, Punta Arenas 620000, Chile;
| | - Paula S. M. Celis-Plá
- Laboratory of Aquatic Environmental Research, Center of Advanced Studies, Universidad de Playa Ancha, Traslaviña 450, Viña del Mar 581782, Chile;
- HUB-AMBIENTAL UPLA, Vicerrectoría de Investigación Postgrado e Innovación, Universidad de Playa Ancha, Av. Carvallo 270, Valparaíso 2340000, Chile
| | - Félix L. Figueroa
- Universidad de Málaga, Instituto Universitario de Biotecnología y Desarrollo Azul (IBYDA), Departamento de Ecología, Facultad de Ciencias, 29071 Malaga, Spain;
| | - Nelso P. Navarro
- Laboratorio de Ecofisiología y Biotecnología de Algas (LEBA), Facultad de Ciencias, Universidad de Magallanes, Punta Arenas 620000, Chile;
- Centro FONDAP de Investigación en Dinámica de Ecosistemas Marinos de Altas Latitudes (IDEAL), Punta Arenas 620000, Chile
- Network for Extreme Environments Research, NEXER-Universidad de Magallanes, casilla 113-D, Punta Arenas 620000, Chile
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24
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Ecological Function of Phenolic Compounds from Mediterranean Fucoid Algae and Seagrasses: An Overview on the Genus Cystoseira sensu lato and Posidonia oceanica (L.) Delile. JOURNAL OF MARINE SCIENCE AND ENGINEERING 2020. [DOI: 10.3390/jmse8010019] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Biodiversity is undergoing rapid and worrying changes, partially driven by anthropogenic activities. Human impacts and climate change (e.g., increasing temperature and ocean acidification), which act at different spatial scales, represent the most serious threats to biodiversity and ecosystem structure and function. In the Mediterranean Sea, complex systems such as fucoid algae and seagrasses, characterized by a high associated biodiversity, are regularly exposed to natural and anthropogenic pressures. These systems, particularly sensitive to a variety of stressors, evolved several physiological and biochemical traits as a response to the different pressures which they are subjected to. For instance, they produce a huge quantity of secondary metabolites such as phenolic compounds, to adapt to different environmental stressors and to defend themselves from biological pressures. These natural products are receiving increasing attention due to their possible applications in a wide range of industrial sectors. In this paper we provide an overview on the ecological role of phenolic compounds from the genus Cystoseira sensu lato and Posidonia oceanica (L.) Delile, also highlighting their potential use as ecological biomarkers.
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Álvarez-Gómez F, Korbee N, Figueroa FL. Effects of UV Radiation on Photosynthesis, Antioxidant Capacity and the Accumulation of Bioactive Compounds in Gracilariopsis longissima, Hydropuntia cornea and Halopithys incurva (Rhodophyta). JOURNAL OF PHYCOLOGY 2019; 55:1258-1273. [PMID: 31257593 DOI: 10.1111/jpy.12899] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Accepted: 05/11/2019] [Indexed: 06/09/2023]
Abstract
The red macroalgae Hydropuntia cornea, Gracilariopsis longissima and Halopithys incurva were cultured for 14 d under laboratory conditions, in enriched seawater with a high nutrient content (N-NH4+ and P-PO43- ) and two radiation regimes: PAR (400-700 nm) and PAB (280-700 nm). The UV radiation effects under high availability of nutrients on growth, photosynthetic pigments (chlorophyll a, carotenoids and phycobiliproteins), photosynthetic activity and biochemical composition were studied. Maximum quantum yield (Fv /Fm ) was not significantly different among the PAR and PAB treatments during the experiment. However, the maximum electronic transport rate (ETRmax ) increased over time, showing the highest values in PAR for H. incurva and H. cornea, whereas for G. longissima it was found in PAB. Photosynthetic efficiency (αETR ) decreased over time in the first two species, but increased in G. longissima. Saturation irradiance (EkETR ) and maximum nonphotochemical quenching (NPQmax ) increased in PAB with time up to 80% and 30%, respectively, indicating a photosynthetic acclimatization like that of sun-type algae. Five MAAs were identified in all species using high performance liquid chromatography (HPLC). The total content of MAAs increased over time, being 30% higher in H. incurva, 40% in G. longissima and 50% in H. cornea in PAB than in the PAR treatment. Finally, the antioxidant activity was also higher in the PAB treatment. All of the species presented an effective mechanism of photoprotection based on the accumulation of photoprotective compounds with antioxidant activity, as well as a high dissipation of excitation energy (high NPQmax ).
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Affiliation(s)
- Félix Álvarez-Gómez
- Department of Ecology and Geology, Faculty of Sciences, University of Malaga, Campus Universitario de Teatinos s/n, 29071, Malaga, Spain
| | - Nathalie Korbee
- Department of Ecology and Geology, Faculty of Sciences, University of Malaga, Campus Universitario de Teatinos s/n, 29071, Malaga, Spain
| | - Félix L Figueroa
- Department of Ecology and Geology, Faculty of Sciences, University of Malaga, Campus Universitario de Teatinos s/n, 29071, Malaga, Spain
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Cruces E, Rautenberger R, Cubillos VM, Ramírez-Kushel E, Rojas-Lillo Y, Lara C, Montory JA, Gómez I. Interaction of Photoprotective and Acclimation Mechanisms in Ulva rigida (Chlorophyta) in Response to Diurnal Changes in Solar Radiation in Southern Chile. JOURNAL OF PHYCOLOGY 2019; 55:1011-1027. [PMID: 31222742 DOI: 10.1111/jpy.12894] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 05/24/2019] [Indexed: 06/09/2023]
Abstract
Species of the genus Ulva (Chlorophyta) are regarded as opportunistic organisms, which efficiently adjust their metabolism to the prevailing environmental conditions. In this study, changes in chlorophyll-a fluorescence-based photoinhibition of photosynthesis, electron transport rates, photosynthetic pigments, lipid peroxidation, total phenolic compounds, and antioxidant metabolism were investigated during a diurnal cycle of natural solar radiation in summer (for 12 h) under two treatments: photosynthetically active radiation (PAR: 400-700 nm) and PAR+ ultraviolet (UV) radiation (280-700 nm). In the presence of PAR alone, Ulva rigida showed dynamic photoinhibition, and photosynthetic parameters and pigment concentrations decreased with the intensification of the radiation. On the other hand, under PAR+UV conditions a substantial decline up to 43% was detected and an incomplete fluorescence recovery, also, P-I curve values remained low in relation to the initial condition. The phenolic compounds increased their concentration only in UV radiation treatments without showing a correlation with the antioxidant activity. The enzimatic activity of superoxide dismutase (SOD) and ascorbate peroxidase (APX) increased over 2-fold respect at initial values during the onset of light intensity. In contrast, catalase (CAT) increased its activity rapidly in response to the radiation stress to reach maxima at 10 a.m. and decreasing during solar. The present study suggests that U. rigida is capable of acclimating to natural radiation stress relies on a concerted action of various physiological mechanisms that act at different times of the day and under different levels of environmental stress.
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Affiliation(s)
- Edgardo Cruces
- Centro Integrativo de Biología y Química Aplicada (CIBQA), Universidad Bernardo O'Higgins, General Gana 1780, Santiago, 8370854, Chile
- Centro de Investigaciones Costeras-Universidad de Atacama (CIC-UDA), Universidad de Atacama, Avenida Copayapu 485, Copiapó, Atacama, Chile
| | - Ralf Rautenberger
- Division of Biotechnology and Plant Health, Department of Algae Production, Norwegian Institute for Bioeconomy Research (NIBIO), Kudalsveien 6, 8027, Bodø, Norway
| | - Víctor Mauricio Cubillos
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile
- Laboratorio Costero de Recursos Acuáticos de Calfuco, Universidad Austral de Chile, Valdivia, Chile
| | - Eduardo Ramírez-Kushel
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile
| | - Yesenia Rojas-Lillo
- Centro Integrativo de Biología y Química Aplicada (CIBQA), Universidad Bernardo O'Higgins, General Gana 1780, Santiago, 8370854, Chile
| | - Carlos Lara
- Centro de Investigación en Recursos Naturales y Sustentabilidad (CIRENYS), Universidad Bernardo O'Higgins, Santiago, 8370993, Chile
| | | | - Iván Gómez
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile
- Research Center FONDAP Dynamic of High Latitude Marine Ecosystems de (IDEAL), Valdivia, Chile
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Piñeiro-Corbeira C, Barreiro R, Franco JN, Cremades J, Cunha J, Arenas F. Unexpected nutrient influence on the thermal ecophysiology of seaweeds that recently followed opposite abundance shifts. MARINE ENVIRONMENTAL RESEARCH 2019; 151:104747. [PMID: 31230707 DOI: 10.1016/j.marenvres.2019.06.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 06/11/2019] [Accepted: 06/16/2019] [Indexed: 06/09/2023]
Abstract
World's oceans are warming, and recent studies suggest that the Iberian upwelling system may be weakening. To understand the potential consequences of both trends, six intertidal seaweeds that recently followed opposite upward and downward abundance shifts in the Iberian upwelling region were exposed for six weeks to conditions simulating present and warmed scenarios, combined with nutrient treatments emulating the influence and absence of the upwelling. Unlike expectations, a high nutrient supply did not ameliorate the effects of warming. Instead, warming slowed down growth in four seaweeds and accelerated the photosynthesis of downward seaweeds only if nutrients were abundant. In a weakened upwelling scenario, nutrient limitation might more strongly influence the performance of both upward and downward seaweeds than warming. With a normally functioning upwelling, warming might be more detrimental to the performance of some downward seaweeds as they might would lose their ability to benefit from the extra nutrient input.
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Affiliation(s)
- Cristina Piñeiro-Corbeira
- BioCost Research Group, Facultad de Ciencias and Centro de Investigaciones Científicas Avanzadas (CICA), Universidad de A Coruña, 15071, A Coruña, Spain.
| | - Rodolfo Barreiro
- BioCost Research Group, Facultad de Ciencias and Centro de Investigaciones Científicas Avanzadas (CICA), Universidad de A Coruña, 15071, A Coruña, Spain
| | - João N Franco
- CIIMAR, Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros do Porto de Leixões, 4450-208, Matosinhos, Portugal
| | - Javier Cremades
- BioCost Research Group, Facultad de Ciencias and Centro de Investigaciones Científicas Avanzadas (CICA), Universidad de A Coruña, 15071, A Coruña, Spain
| | - Jacinto Cunha
- CIIMAR, Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros do Porto de Leixões, 4450-208, Matosinhos, Portugal
| | - Francisco Arenas
- CIIMAR, Centro Interdisciplinar de Investigação Marinha e Ambiental, Terminal de Cruzeiros do Porto de Leixões, 4450-208, Matosinhos, Portugal
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Figueroa FL, Celis-Plá PS, Martínez B, Korbee N, Trilla A, Arenas F. Yield losses and electron transport rate as indicators of thermal stress in Fucus serratus (Ochrophyta). ALGAL RES 2019. [DOI: 10.1016/j.algal.2019.101560] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Rojo C, Puche E, Rodrigo MA. The antagonistic effect of UV radiation on warming or nitrate enrichment depends on ecotypes of freshwater macroalgae (Charophytes). JOURNAL OF PHYCOLOGY 2019; 55:714-729. [PMID: 30900746 DOI: 10.1111/jpy.12859] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Accepted: 02/20/2019] [Indexed: 06/09/2023]
Abstract
Increases in ultraviolet radiation (UVR), a negative global change factor, affect aquatic primary producers. This effect is expected to be modulated by other global change factors, and to be different for populations adapted to different environments. A common garden experimental approach using freshwater green macroalgae, the cosmopolitan charophyte species Chara hispida and C. vulgaris, allowed us to test whether the beneficial increases in water temperature (T) and nitrate concentration (N) mitigate negative UVR effects. Also, whether these interactions would be not only species-specific but also according to the origin of the population; therefore, two populations of each species were used: one from a coastal wetland and the other from a mountain lake. Two factorial-design experiments were performed: (i) the presence and absence of UVR × lower and higher T × four populations, and (ii) the presence and absence of UVR × lower and higher N × four populations. Response variables were: growth, morphometry, UVR-protective compounds, photosynthetic pigments, and stoichiometric composition. There were consistent response patterns in the key variables that represent different organization levels. Our main results showed that both warming and, to a lesser extent, the increase in nutrients ameliorated the negative effects of UVR on the molecular processes involved in acclimation to UVR, and that such a mitigating effect depended on the different phenotypic plasticity of each species and each ecotype. The coastal populations, being from a more variable environment, were more resilient than the mountain populations, mainly because of changes in growth and morphology.
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Affiliation(s)
- Carmen Rojo
- Cavanilles Institute of Biodiversity and Evolutionary Biology, University of València, c/Catedrático José Beltrán 2, Paterna, E-46980, Spain
| | - Eric Puche
- Cavanilles Institute of Biodiversity and Evolutionary Biology, University of València, c/Catedrático José Beltrán 2, Paterna, E-46980, Spain
| | - María A Rodrigo
- Cavanilles Institute of Biodiversity and Evolutionary Biology, University of València, c/Catedrático José Beltrán 2, Paterna, E-46980, Spain
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30
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Quintano E, Celis-Plá PSM, Martínez B, Díez I, Muguerza N, Figueroa FL, Gorostiaga JM. Ecophysiological responses of a threatened red alga to increased irradiance in an in situ transplant experiment. MARINE ENVIRONMENTAL RESEARCH 2019; 144:166-177. [PMID: 30683559 DOI: 10.1016/j.marenvres.2019.01.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 12/12/2018] [Accepted: 01/14/2019] [Indexed: 06/09/2023]
Abstract
The red alga Gelidium corneum is a dominant foundation species in the south-eastern Bay of Biscay, where a decline in its populations has been documented in the few last decades. We investigated the ecophysiological responses of G. corneum to different light conditions by means of an in situ transplant experiment. We found that the stress response measured by physiological and biochemical approaches was higher in G. corneum at higher irradiance levels, for both transplanted and control specimens, than under lower light intensities. In the former case the specimens showed a decrease in maximum quantum yield (Fv/Fm), maximum electron transport rate (ETRmax), photosynthetic efficiency (αETR), photosynthetic pigment contents, nitrogen content and thallus length, whereas the C:N ratio, MAAs and bleaching cover increased. In general terms, these responses were more evident in the apical parts of the thallus than in middle ones. Our results suggest that high light stress at depths of 3 m triggered photobiological changes in G. corneum, involving ineffective photoprotection and the occurrence of chronic photoinhibition. Therefore, considering the upward trend in summer mean surface solar radiation in the study area since the 80s, high light conditions may have played a role in the declines observed in G. corneum beds from the south-eastern Bay of Biscay.
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Affiliation(s)
- Endika Quintano
- Department of Plant Biology and Ecology, University of the Basque Country (UPV/EHU), PO Box 644, 48080, Bilbao, Spain.
| | - Paula S M Celis-Plá
- Laboratory of Coastal Environmental Research, Centre of Advanced Studies, University of Playa Ancha, Calle Traslaviña 450, 2581782, Viña del Mar, Chile
| | - Brezo Martínez
- Department of Ecology, Faculty of Sciences, University of Málaga, 29071, Málaga, Spain
| | - Isabel Díez
- Department of Plant Biology and Ecology, University of the Basque Country (UPV/EHU), PO Box 644, 48080, Bilbao, Spain
| | - Nahiara Muguerza
- Department of Plant Biology and Ecology, University of the Basque Country (UPV/EHU), PO Box 644, 48080, Bilbao, Spain
| | - Félix L Figueroa
- Biodiversity and Conservation Unit, Rey Juan Carlos University, 28933, Móstoles, Spain
| | - José M Gorostiaga
- Department of Plant Biology and Ecology, University of the Basque Country (UPV/EHU), PO Box 644, 48080, Bilbao, Spain
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Ma J, Wang W, Qu L, Liu X, Wang Z, Qiao S, Wu H, Gao G, Xu J. Differential Photosynthetic Response of a Green Tide Alga Ulva linza to Ultraviolet Radiation, Under Short- and Long-term Ocean Acidification Regimes. Photochem Photobiol 2019; 95:990-998. [PMID: 30636002 DOI: 10.1111/php.13083] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 01/04/2019] [Indexed: 11/29/2022]
Abstract
Both ocean acidification (OA) and solar ultraviolet (UV) radiation can bring about changes in macroalgal physiological performance. However, macroalgal responses to UV radiation when acclimatized to OA under different time scales are rare. Here, we investigate the response of Ulva linza, a green tide alga, to UV radiation in the form of photosynthetically active radiation (PAR) or PAB (PAR+UVA+UVB) radiation. Radiation exposures were assessed following long-term (from spore to adult stage, 1 month) and short-term (adult stage, 1 week) OA treatments. Results showed that increased CO2 decreased the damage rate (k) and repair rate (r) of thalli grown under short-term OA conditions with PAB treatment, the ratio of r:k was not altered. Following long-term OA conditions, r was not affected, although k was increased in thalli following PAB treatment, resulting in a reduced ratio of r:k. The relative level of UV inhibition increased and UV-absorbing compounds decreased when algae were cultured under long-term OA conditions. The recovery rate of thalli was enhanced when grown under long-term OA after UV radiation treatment. These results show that blooming algae may be more sensitive to UV radiation in marine environments, but it can develop effective mechanisms to offset the negative effects, reflecting acclimation to long-term OA conditions.
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Affiliation(s)
- Jing Ma
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology/Marine Resources Development Institute of Jiangsu, Huaihai Institute of Technology, Lianyungang, China
| | - Wen Wang
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology/Marine Resources Development Institute of Jiangsu, Huaihai Institute of Technology, Lianyungang, China
| | - Liming Qu
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology/Marine Resources Development Institute of Jiangsu, Huaihai Institute of Technology, Lianyungang, China
| | - Xiaoyan Liu
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology/Marine Resources Development Institute of Jiangsu, Huaihai Institute of Technology, Lianyungang, China
| | - Zhiqin Wang
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology/Marine Resources Development Institute of Jiangsu, Huaihai Institute of Technology, Lianyungang, China
| | - Sen Qiao
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology/Marine Resources Development Institute of Jiangsu, Huaihai Institute of Technology, Lianyungang, China
| | - Hailong Wu
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology/Marine Resources Development Institute of Jiangsu, Huaihai Institute of Technology, Lianyungang, China
| | - Guang Gao
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology/Marine Resources Development Institute of Jiangsu, Huaihai Institute of Technology, Lianyungang, China
| | - Juntian Xu
- Jiangsu Key Laboratory of Marine Bioresources and Environment/Jiangsu Key Laboratory of Marine Biotechnology/Marine Resources Development Institute of Jiangsu, Huaihai Institute of Technology, Lianyungang, China.,Co-Innovation Center of Jiangsu Marine Bio-industry Technology, Lianyungang, China
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Williamson CE, Neale PJ, Hylander S, Rose KC, Figueroa FL, Robinson SA, Häder DP, Wängberg SÅ, Worrest RC. The interactive effects of stratospheric ozone depletion, UV radiation, and climate change on aquatic ecosystems. Photochem Photobiol Sci 2019; 18:717-746. [DOI: 10.1039/c8pp90062k] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Summary of current knowledge about effects of UV radiation in inland and oceanic waters related to stratospheric ozone depletion and climate change.
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Affiliation(s)
| | | | - Samuel Hylander
- Centre for Ecology and Evolution in Microbial model Systems
- Linnaeus Univ
- Kalmar
- Sweden
| | - Kevin C. Rose
- Department of Biological Sciences
- Rensselaer Polytechnic Institute
- Troy
- USA
| | | | - Sharon A. Robinson
- Centre for Sustainable Ecosystem Solutions
- School of Earth
- Atmosphere and Life Sciences and Global Challenges Program
- University of Wollongong
- Australia
| | - Donat-P. Häder
- Department of Biology
- Friedrich-Alexander Universität
- Möhrendorf
- Germany
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Pereira DT, Batista D, Filipin EP, Bouzon ZL, Simioni C. Effects of Ultraviolet Radiation (UVA + UVB) on Germination of Carpospores of the Red Macroalga Pyropia acanthophora var. brasiliensis (Rhodophyta, Bangiales): Morphological Changes. Photochem Photobiol 2018; 95:803-811. [PMID: 30466157 DOI: 10.1111/php.13055] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 11/14/2018] [Indexed: 11/28/2022]
Abstract
Carpospores of Pyropia acanthophora var. brasiliensis are dispersion and reproduction units responsible for giving rise to the diploid filamentous structure of this alga's life cycle. The present study assesses the anthropogenic impact of ultraviolet radiation (UVR) on morphology and ultrastructure, spore viability, autofluorescence of chloroplasts and the amount of intensity of ROS during the germination of carpospores. Carpospores were cultivated at 24 ± 1°C, 40 ± 10 μmol photons m-2 s-1 with photoperiod of 12 h and exposed to UVAR + UVBR for 3 h a day for 2 days with a daily dose of 5.05 J cm-2 for UVAR and 0.095 J cm-2 for UVBR. Samples were cultured for another five days exposed only to PAR in order to confirm their viability after the initial 2-day exposure. Carpospores showed significant sensitivity to UVR exposure after only 48 h, including changes in developmental rate, overall morphology, cell organization and chloroplast autofluorescence. UVR exposure inhibited germ tube formation in carpospores, which were mostly nonviable and/or altered, showing retracted cytoplasm and disorganized cytoplasmic content. Even in the absence of UVR exposure, carpospores remained collapsed, indicating irreversible damage. It can be concluded that UVR is a limiting factor for the development of P. acanthophora.
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Affiliation(s)
- Débora Tomazi Pereira
- Plant Cell Biology Laboratory, Department of Cell Biology, Embryology and Genetics, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Deonir Batista
- Plant Cell Biology Laboratory, Department of Cell Biology, Embryology and Genetics, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Elisa Poltronieri Filipin
- Plant Cell Biology Laboratory, Department of Cell Biology, Embryology and Genetics, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Zenilda Laurita Bouzon
- Plant Cell Biology Laboratory, Department of Cell Biology, Embryology and Genetics, Federal University of Santa Catarina, Florianópolis, SC, Brazil
| | - Carmen Simioni
- Plant Cell Biology Laboratory, Department of Cell Biology, Embryology and Genetics, Federal University of Santa Catarina, Florianópolis, SC, Brazil
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Olabarria C, Arenas F, Fernández Á, Troncoso JS, Martínez B. Physiological responses to variations in grazing and light conditions in native and invasive fucoids. MARINE ENVIRONMENTAL RESEARCH 2018; 139:151-161. [PMID: 29793731 DOI: 10.1016/j.marenvres.2018.05.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 04/19/2018] [Accepted: 05/15/2018] [Indexed: 06/08/2023]
Abstract
Poor physiological acclimatization to climate change has led to shifts in the distributional ranges of various species and to biodiversity loss. However, evidence also suggests the relevance of non-climatic physical factors, such as light, and biotic factors, which may act in interactive or additive way. We used a mechanistic approach to evaluate the ecophysiological responses of four seaweed species (three dominant intertidal fucoids, Fucus serratus, Ascophyllum nodosum, Bifurcaria bifurcata, and the invasive Sargassum muticum) to different conditions of grazing, light irradiance and ultraviolet (UV) radiation. We performed a large-scale mesocosm experiment with a total of 800 individual thalli of macroalgae. The factorial experimental design included major algal traits, photoacclimation, nutrient stoichiometry and chemical defence as response variables. Few significant effects of the factors acting alone or in combination were observed, suggesting a good capacity for acclimatization in all four species. The significant effects were generally additive and there were no potentially deleterious synergistic effects between factors. Fucus serratus, a species currently undergoing a drastic contraction of its southern distribution limit in Europe, was the most strongly affected species, showing overall lower photosynthetic efficiency than the other species. The growth rate of F. serratus decreased when UV radiation was filtered out, but only in the presence of grazers. Moreover, more individuals of this species tended to reach maturity in the absence of grazers, and the nitrogen content of tissues decreased under full-spectrum light. Only the phlorotannin content of tissues of B. bifurcata and of exudates of A. nodosum, both slow-growing species, were positively affected by respectively removal of UVB radiation and the presence of grazers. The findings for S. muticum, a well-established invasive seaweed across European coasts, suggested similar physiological response of this fast-growing species to different levels of grazing activity and light quality/intensity. As expected, this species grew faster than the other species. Bifurcaria bifurcata and A. nodosum only showed minor effects of light quality and grazing on phlorotannins content, which suggests good resistance of these two long-lived species to the experimental conditions. Mechanistic approaches that are designed to analyse interactive effects of physical and biotic factors provide an understanding of physiological responses of species and help to improve the confidence of predictive distribution models.
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Affiliation(s)
- Celia Olabarria
- Departamento de Ecoloxía e Bioloxía Animal, Facultade de Ciencias Experimentais, Campus Lagoas-Marcosende, 36310, Vigo, Pontevedra, Spain.
| | - Francisco Arenas
- Aquatic Ecology & Evolution Group, Interdisciplinary Centre for Marine and Environmental Research (CIIMAR), University of Porto, Terminal Cruzeiros Porto Leixões, 4450-208 Matosinhos, Portugal
| | - Ángela Fernández
- Aquatic Ecology & Evolution Group, Interdisciplinary Centre for Marine and Environmental Research (CIIMAR), University of Porto, Terminal Cruzeiros Porto Leixões, 4450-208 Matosinhos, Portugal
| | - Jesús S Troncoso
- Departamento de Ecoloxía e Bioloxía Animal, Facultade de Ciencias Experimentais, Campus Lagoas-Marcosende, 36310, Vigo, Pontevedra, Spain
| | - Brezo Martínez
- Area de Biodiversidad y Conservación, Rey Juan Carlos University, 28933 Móstoles, Madrid, Spain
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Varela DA, Hernríquez LA, Fernández PA, Leal P, Hernández-González MC, Figueroa FL, Buschmann AH. Photosynthesis and nitrogen uptake of the giant kelp Macrocystis pyrifera (Ochrophyta) grown close to salmon farms. MARINE ENVIRONMENTAL RESEARCH 2018; 135:93-102. [PMID: 29428528 DOI: 10.1016/j.marenvres.2018.02.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 01/08/2018] [Accepted: 02/01/2018] [Indexed: 05/16/2023]
Abstract
Finfish aquaculture is an activity that has experienced an explosive global development, but presents several environmental risks, such as high nitrogen outputs with potential eutrophication consequences. Therefore, the integration of seaweed aquaculture with the aim of decreasing nitrogen emissions associated with intensive salmon farming has been proposed as a bioremediation solution. Ecophysiological knowledge about seaweeds cultured close to farming cages is, however, still rudimentary. We experimentally studied the growth and physiological responses of Macrocystis pyrifera (Linnaeus) C. Agardh in a suspended culture system near a commercial salmon farm at three culture depths in order to understand its productivity performance. The results showed maximum growth responses at intermediate depths (3 m) as opposed to near the surface (1 m) or at a deeper culture level (6 m). At 6 m depth, light limitations were detected, whereas the sporophytes growing at 1 m depth responded to high irradiances, especially in late spring and summer, where they were more intensely exposed to decay of photosynthesis than individuals from other depths. Accordingly, photosynthetic pigment concentrations (chlorophyll a and c, and fucoxonthin) were higher during low-light seasons (winter and early spring) but decreased during the summer. On the other hand, although both nitrogen uptake and Nitrate Reductase (NR) activity varied seasonally, increasing significantly in spring and summer, these variables were not affected by culture depth. Therefore, the optimal culture depth of M. pyrifera near salmon farms appears to be a physiological integration between nitrogen supply and demand, which is modulated by plant acclimation to the seasonal change in light and temperature. The results allow to discuss about the environmental constrains of M. pyrifera in an ecophysiological context to improve the understanding of its aquaculture, and to contribute relevant information on the use of this species in bioremediation.
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Affiliation(s)
- Daniel A Varela
- Centro i∼mar & CeBiB, Universidad de Los Lagos, Camino Chinquihue km 6, Puerto Montt, Chile
| | | | - Pamela A Fernández
- Centro i∼mar & CeBiB, Universidad de Los Lagos, Camino Chinquihue km 6, Puerto Montt, Chile
| | - Pablo Leal
- Instituto Fomento Pesquero, Puerto Montt, Chile
| | | | - Félix L Figueroa
- Departamento de Ecología, Universidad de Málaga, Campus de Teatinos s/n, 29071 Málaga, Spain
| | - Alejandro H Buschmann
- Centro i∼mar & CeBiB, Universidad de Los Lagos, Camino Chinquihue km 6, Puerto Montt, Chile.
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Figueroa FL, Álvarez-Gómez F, del Rosal Y, Celis-Plá PS, González G, Hernández M, Korbee N. In situ photosynthetic yields of cave photoautotrophic biofilms using two different Pulse Amplitude Modulated fluorometers. ALGAL RES 2017. [DOI: 10.1016/j.algal.2016.12.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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37
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Cruces E, Rautenberger R, Rojas-Lillo Y, Cubillos VM, Arancibia-Miranda N, Ramírez-Kushel E, Gómez I. Physiological acclimation of Lessonia spicata to diurnal changing PAR and UV radiation: differential regulation among down-regulation of photochemistry, ROS scavenging activity and phlorotannins as major photoprotective mechanisms. PHOTOSYNTHESIS RESEARCH 2017; 131:145-157. [PMID: 27620461 DOI: 10.1007/s11120-016-0304-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Accepted: 09/02/2016] [Indexed: 05/05/2023]
Abstract
Intertidal macroalgae are constantly subjected to high variations in the quality and quantity of incident irradiance that can eventually generate detrimental effect on the photosynthetic apparatus. The success of these organisms to colonize the stressful coastal habitat is mainly associated with the complexity of their morphological structures and the efficiency of the anti-stress mechanisms to minimize the physiological stress. Lessonia spicata (Phaeophyceae), a brown macroalga, that inhabits the intertidal zone in central-southern Chile was studied in regard to their physiological (quantum yield, electron transport rate, pigments) and biochemical (phlorotannins content, antioxidant metabolism, oxidative stress) responses during a daily light cycle under natural solar radiation. Major findings were that F v/F m, photosynthetic parameters (ETRmax, alpha, E k) and pigments in L. spicata showed an inverse relationship to the diurnal changes in solar radiation. Phlorotannins levels and antioxidant activity showed their highest values in treatment that included UV radiation. There was an increase in SOD and APX in relation at light stress, with a peak in activity between 5.2 and 10.1 W m-2 of biologically effective dose. The increase in peroxidative damage was proportional to light dose. These results indicated that different light doses can trigger a series of complementary mechanisms of acclimation in L. spicata based on: (i) down-regulation of photochemistry activity and decrease in concentration of photosynthetic pigments; (ii) induction of phenolic compounds with specific UV-screening functions; and (iii) reactive oxygen species (ROS) scavenging activity via complementary repair of the oxidative damage through increased activity of antioxidant enzymes and potentially increased amounts of phenolic compounds.
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Affiliation(s)
- Edgardo Cruces
- Center for Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Av. Libertador Bernardo O'Higgins, 3363, Santiago, Chile.
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile.
| | - Ralf Rautenberger
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile
- Laboratorio de Ecosistemas de Macroalgas Antárticas y Subantárticas (LEMAS), Universidad de Magallanes, Casilla 113-D, Punta Arenas, Chile
| | - Yesenia Rojas-Lillo
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile
| | - Victor Mauricio Cubillos
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile
- Laboratorio Costero de Recursos Acuáticos de Calfuco, Universidad Austral de Chile, Valdivia, Chile
| | - Nicolás Arancibia-Miranda
- Center for Development of Nanoscience and Nanotechnology (CEDENNA), Universidad de Santiago de Chile, Av. Libertador Bernardo O'Higgins, 3363, Santiago, Chile
| | - Eduardo Ramírez-Kushel
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile
| | - Iván Gómez
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile
- Centro FONDAP de Investigación de Ecosistemas Marinos de Altas Latitudes (IDEAL), Santiago, Chile
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Celis-Plá PSM, Bouzon ZL, Hall-Spencer JM, Schmidt EC, Korbee N, Figueroa FL. Seasonal biochemical and photophysiological responses in the intertidal macroalga Cystoseira tamariscifolia (Ochrophyta). MARINE ENVIRONMENTAL RESEARCH 2016; 115:89-97. [PMID: 26724873 DOI: 10.1016/j.marenvres.2015.11.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Revised: 11/19/2015] [Accepted: 11/28/2015] [Indexed: 05/16/2023]
Abstract
Seasonal changes in the biochemistry and photophysiology of the brown macroalga Cystoseira tamariscifolia was analyzed in southern Spain. Total carbon and nitrogen contents, phenolic compounds, antioxidant and photosynthetic activities were seasonally determined over two years. Carbon, nitrogen and photoprotective phenolic contents were higher in winter and spring than in summer and autumn. Antioxidant levels were highest in spring and we found a positive correlation between phenolic content and antioxidant activity (EC50). Photosynthetic capacity (ETRmax) and photosynthetic efficiency (αETR) were also highest in spring, and there was a positive correlation between ETRmax and the amount of phenols present. Increased irradiance in spring enhanced algal productivity, antioxidant activity and the production of photoprotective compounds but in summer nutrient depletion due to thermal stratification of coastal waters reduced photosynthetic activity and the photoprotective capacity of C. tamariscifolia. Electron microscopy showed that phenols occurred in the cytoplasm of cortical cells inside physodes. Spring would be the best period to harvest C. tamariscifolia to extract photoprotectors and antioxidants for potential commercial uses, although the environmental impacts would need to be carefully assessed.
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Affiliation(s)
- Paula S M Celis-Plá
- Departamento de Ecología, Universidad de Málaga, Campus de Teatinos s/n, 29071 Málaga, Spain; Laboratorio de Botánica, Facultad de Farmacia, Universidad de Barcelona, Joan XXIII s/n, 08028 Barcelona, Spain.
| | - Zenilda L Bouzon
- Plant Cell Biology Laboratory, Department of Cell Biology, Embryology and Genetics, Federal University of Santa Catarina, 88049-900, CP 476 Florianópolis, SC, Brazil
| | - Jason M Hall-Spencer
- Marine Biology and Ecology Research Centre, Plymouth University, Plymouth PL4 8AA, UK
| | - Eder C Schmidt
- Plant Cell Biology Laboratory, Department of Cell Biology, Embryology and Genetics, Federal University of Santa Catarina, 88049-900, CP 476 Florianópolis, SC, Brazil
| | - Nathalie Korbee
- Departamento de Ecología, Universidad de Málaga, Campus de Teatinos s/n, 29071 Málaga, Spain
| | - Félix L Figueroa
- Departamento de Ecología, Universidad de Málaga, Campus de Teatinos s/n, 29071 Málaga, Spain
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Huovinen P, Gómez I. UV Sensitivity of Vegetative and Reproductive Tissues of Two Antarctic Brown Algae is Related to Differential Allocation of Phenolic Substances. Photochem Photobiol 2015; 91:1382-8. [PMID: 26214172 DOI: 10.1111/php.12500] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2015] [Accepted: 07/06/2015] [Indexed: 11/27/2022]
Abstract
UV sensitivity of the vegetative and reproductive tissues of two Antarctic brown macroalgae was compared. Photosynthesis as well as the content and localization of phenolic substances were determined. Responses to UV radiation were quantified as chlorophyll fluorescence (Fv /Fm ). Ascoseira mirabilis showed high UV tolerance, while in Cystosphaera jacquinotii Fv /Fm decreased by 15-21%, the receptacles being more tolerant than the vegetative blades. The phlorotannin contents showed an opposite pattern: the soluble fraction dominated in C. jacquinotii while in A. mirabilis the insoluble fraction was more abundant. Soluble phlorotannins were higher in the reproductive than in vegetative tissues in both species. Images of tissue cross-sections under violet-blue light excitation confirmed a high allocation of phenolic compounds (as blue autofluorescence) in C. jacquinotii, both in reproductive and vegetative blades. The allocation and proportions of the soluble and insoluble phlorotannins could be related with the observed UV tolerance of the vegetative and reproductive tissues.
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Affiliation(s)
- Pirjo Huovinen
- Instituto de Ciencias Marinas y Limnológicas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
| | - Iván Gómez
- Instituto de Ciencias Marinas y Limnológicas, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile
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Rodil IF, Lucena-Moya P, Olabarria C, Arenas F. Alteration of Macroalgal Subsidies by Climate-Associated Stressors Affects Behavior of Wrack-Reliant Beach Consumers. Ecosystems 2015. [DOI: 10.1007/s10021-014-9836-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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García-Sánchez M, Korbee N, Pérez-Ruzafa IM, Marcos C, Figueroa FL, Pérez-Ruzafa Á. Living in a coastal lagoon environment: photosynthetic and biochemical mechanisms of key marine macroalgae. MARINE ENVIRONMENTAL RESEARCH 2014; 101:8-21. [PMID: 25164017 DOI: 10.1016/j.marenvres.2014.07.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Revised: 07/22/2014] [Accepted: 07/29/2014] [Indexed: 06/03/2023]
Abstract
The physiological status of Cystoseira compressa, Padina pavonica and Palisada tenerrima was studied by in vivo chlorophyll fluorescence, pigment content, stoichiometry (C:N), accumulation of UV photoprotectors and antioxidant activity; comparing their photosynthetic response in a coastal lagoon (Mar Menor) and in Mediterranean coastal waters. In general, the specimens reached their highest ETRmax in spring in the Lagoon, but in summer in the Mediterranean, coinciding with their maximum biomass peak. The species exhibited a dynamic photoinhibition. Except C. compressa, they showed a lower decrease in Fv/Fm and higher recovery rates in the Mediterranean populations when exposed to high irradiance. The higher salinity and temperature of the lagoon could impair the photoprotection mechanisms. The acclimation to lagoon environments is species-specific and involves complex regulatory mechanisms. The results underline the importance of N in repair, avoidance, quenching and scavenging mechanisms. In general, Lagoon specimens showed higher pigment concentration. Although xanthophylls play important photo-protective and antioxidant roles, the observed trend is more likely to be explained by the higher temperatures reached in the lagoon compared to Mediterranean. Therefore the studied photosynthetic and biochemical mechanisms can be effective not only for high irradiance, but also for higher temperatures in a climate change scenario, but are highly dependent on nutrient availability.
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Affiliation(s)
- Marta García-Sánchez
- Departamento de Ecología e Hidrología, Facultad de Biología, Campus de Espinardo, Regional Campus of International Excellence "Campus Mare Nostrum", Universidad de Murcia, Murcia 30100, Spain.
| | - Nathalie Korbee
- Departamento de Ecología y Geología, Facultad de Ciencias, Universidad de Málaga, Málaga 29071, Spain
| | - Isabel María Pérez-Ruzafa
- Departamento de Biología Vegetal I, Facultad de Biología, Universidad Complutense de Madrid, Madrid 28040, Spain
| | - Concepción Marcos
- Departamento de Ecología e Hidrología, Facultad de Biología, Campus de Espinardo, Regional Campus of International Excellence "Campus Mare Nostrum", Universidad de Murcia, Murcia 30100, Spain
| | - Félix L Figueroa
- Departamento de Ecología y Geología, Facultad de Ciencias, Universidad de Málaga, Málaga 29071, Spain
| | - Ángel Pérez-Ruzafa
- Departamento de Ecología e Hidrología, Facultad de Biología, Campus de Espinardo, Regional Campus of International Excellence "Campus Mare Nostrum", Universidad de Murcia, Murcia 30100, Spain
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