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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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McReynolds C, Adrien A, Silvestre de Ferron A, Boussetta N, Grimi N, Pecastaing L, Fernandes SCM. Extraction of Mycosporine-like Amino Acids and Proteins from the Agarophyte Gelidium corneum Using Pulsed Power Techniques. Foods 2023; 12:foods12071473. [PMID: 37048293 PMCID: PMC10094572 DOI: 10.3390/foods12071473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 03/25/2023] [Accepted: 03/27/2023] [Indexed: 04/14/2023] Open
Abstract
Gelidium corneum (syn. sesquipedale) is an industrially and ecologically important species of red alga used for the production of high-quality agar. However, the species is also of growing interest for the production of other valuable compounds, such as mycosporine-like amino acids (MAAs), with potential cosmeceutical and biomedical applications. Novel methods using two pulsed power techniques, high-voltage electrical discharges (HVED) and pulsed electrical fields (PEF), were evaluated for efficacy of MAA extraction. Algal suspensions were prepared at two ratios (1:20 and 1:40 w:v). Four different extraction protocols were compared: (i) high-voltage electrical discharges, (ii) pulsed electric fields, (iii) maceration at room temperature, and (iv) maceration at 50 °C. The algae were treated in three states: freshly harvested, dried, and powdered. HVED and PEF treatments were effective when performed on fresh algae, and in particular the HVED treatment resulted in yields of MAAs twenty times higher than the control: 0.81 ± 0.05 mg/gDry Weight (DW) vs. 0.037 ± 0.002 mg/gDW. This effect was not observed to the same extent when the algae were dried or powdered, although HVED remained the most selective method overall.
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Affiliation(s)
- Colin McReynolds
- IPREM-Institute of Analytical Sciences and Physico-Chemistry for Environment and Materials, E2S UPPA: Energy Environment Solutions, Université de Pau et des Pays de l'Adour, CNRS-Centre National de la Recherche Scientifique, 64600 Anglet, France
- MANTA-Marine Materials Research Group, Universite de Pau et des Pays de l'Adour, E2S UPPA, 64600 Anglet, France
| | - Amandine Adrien
- IPREM-Institute of Analytical Sciences and Physico-Chemistry for Environment and Materials, E2S UPPA: Energy Environment Solutions, Université de Pau et des Pays de l'Adour, CNRS-Centre National de la Recherche Scientifique, 64600 Anglet, France
- MANTA-Marine Materials Research Group, Universite de Pau et des Pays de l'Adour, E2S UPPA, 64600 Anglet, France
| | - Antoine Silvestre de Ferron
- Laboratoire des Sciences de l'Ingénieur Appliquées à la Mécanique et au Génie Électrique-Fédération IPRA, Université de Pau et des Pays de l'Adour/E2S UPPA, EA4581, 64000 Pau, France
| | - Nadia Boussetta
- TIMR (Integrated Transformations of Renewable Matter), ESCOM, Université de Technologie de Compiègne, Sorbonne Universités, Centre de Recherche Royallieu, CEDEX CS 60319, 60203 Compiègne, France
| | - Nabil Grimi
- TIMR (Integrated Transformations of Renewable Matter), ESCOM, Université de Technologie de Compiègne, Sorbonne Universités, Centre de Recherche Royallieu, CEDEX CS 60319, 60203 Compiègne, France
| | - Laurent Pecastaing
- IPREM-Institute of Analytical Sciences and Physico-Chemistry for Environment and Materials, E2S UPPA: Energy Environment Solutions, Université de Pau et des Pays de l'Adour, CNRS-Centre National de la Recherche Scientifique, 64600 Anglet, France
- Laboratoire des Sciences de l'Ingénieur Appliquées à la Mécanique et au Génie Électrique-Fédération IPRA, Université de Pau et des Pays de l'Adour/E2S UPPA, EA4581, 64000 Pau, France
| | - Susana C M Fernandes
- IPREM-Institute of Analytical Sciences and Physico-Chemistry for Environment and Materials, E2S UPPA: Energy Environment Solutions, Université de Pau et des Pays de l'Adour, CNRS-Centre National de la Recherche Scientifique, 64600 Anglet, France
- MANTA-Marine Materials Research Group, Universite de Pau et des Pays de l'Adour, E2S UPPA, 64600 Anglet, France
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Harris RJ, Bryant C, Coleman MA, Leigh A, Briceño VF, Arnold PA, Nicotra AB. A novel and high-throughput approach to assess photosynthetic thermal tolerance of kelp using chlorophyll α fluorometry. JOURNAL OF PHYCOLOGY 2023; 59:179-192. [PMID: 36345151 DOI: 10.1111/jpy.13296] [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: 09/14/2022] [Accepted: 10/17/2022] [Indexed: 06/16/2023]
Abstract
Foundation seaweed species are experiencing widespread declines and localized extinctions due to increased instability of sea surface temperature. Characterizing temperature thresholds are useful for predicting patterns of change and identifying species most vulnerable to extremes. Existing methods for characterizing seaweed thermal tolerance produce diverse metrics and are often time-consuming, making comparisons between species and techniques difficult, hindering insight into global patterns of change. Using three kelp species, we adapted a high-throughput method - previously used in terrestrial plant thermal biology - for use on kelps. This method employs temperature-dependent fluorescence (T-F0 ) curves under heating or cooling regimes to determine the critical temperature (Tcrit ) of photosystem II (PSII), i.e., the breakpoint between slow and fast rise fluorescence response to changing temperature, enabling rapid assays of photosynthetic thermal tolerance using a standardized metric. This method enables characterization of Tcrit for up to 48 samples per two-hour assay, demonstrating the capacity of T-F0 curves for high-throughput assays of thermal tolerance. Temperature-dependent fluorescence curves and their derived metric, Tcrit , may offer a timely and powerful new method for the field of phycology, enabling characterization and comparison of photosynthetic thermal tolerance of seaweeds across many populations, species, and biomes.
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Affiliation(s)
- Rosalie J Harris
- Division of Ecology & Evolution, Research School of Biology, The Australian National University, Canberra, Australian Capital Territory, Australia
| | - Callum Bryant
- Division of Ecology & Evolution, Research School of Biology, The Australian National University, Canberra, Australian Capital Territory, Australia
| | - Melinda A Coleman
- New South Wales Fisheries, National Marine Science Centre, 2 Bay Drive, Coffs Harbour, New South Wales, 2450, Australia
- National Marine Science Centre, Southern Cross University, 2 Bay Drive, Coffs Harbour, New South Wales, 2450, Australia
- Oceans Institute and School of Biological Sciences, University of Western Australia, 35 Stirling Highway, Crawley, Western Australia, 6009, Australia
| | - Andrea Leigh
- School of Life Sciences, University of Technology Sydney, PO Box 123, Broadway, New South Wales, 2007, Australia
| | - Verónica F Briceño
- Division of Ecology & Evolution, Research School of Biology, The Australian National University, Canberra, Australian Capital Territory, Australia
| | - Pieter A Arnold
- Division of Ecology & Evolution, Research School of Biology, The Australian National University, Canberra, Australian Capital Territory, Australia
| | - Adrienne B Nicotra
- Division of Ecology & Evolution, Research School of Biology, The Australian National University, Canberra, Australian Capital Territory, Australia
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Contreras-Porcia L, Meynard A, Piña F, Kumar M, Lovazzano C, Núñez A, Flores-Molina MR. Desiccation Stress Tolerance in Porphyra and Pyropia Species: A Latitudinal Analysis along the Chilean Coast. PLANTS (BASEL, SWITZERLAND) 2022; 12:12. [PMID: 36616141 PMCID: PMC9824847 DOI: 10.3390/plants12010012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/14/2022] [Accepted: 12/15/2022] [Indexed: 06/17/2023]
Abstract
One of the most important factors regulating the distribution and abundance of seaweeds is desiccation, triggered mainly by tidal changes and climatic variation. Porphyra and Pyropia species have evolved multiple strategies to tolerate desiccation stress; however, how these tolerance strategies differ in these species inhabiting different latitudes is still unknown. In this context, we analyzed, in situ, the physiological responses of these species (collected from 18° S to 41° S along the Chilean coast) to desiccation stress using biochemical and molecular analyses. The hyper-arid terrestrial climate of northern Chile, with high evaporation and lack of constant rain determines a very steep increase in desiccation stress in the upper intertidal during low tide for these species. Accordingly, the results showed that, in comparison with the southernmost populations, the Porphyra/Pyropia species from the north zone of Chile (18°-30° S) exhibited higher contents of lipoperoxide and carbonyls (1.6-1.9 fold) together with higher enzymatic activities, including ascorbate peroxidase, catalase, peroxiredoxin, and thioredoxin (2-3-fold). In addition, a substantial expression of cat, prx, and trx transcripts during desiccation was demonstrated, mainly in the northernmost populations. These results provide evidence of (i) significant activation of antioxidant enzymes and transcripts (principally cat and prx); (ii) participation of phenolic antioxidant compounds as a highly plastic physiological strategy to cope with desiccation; and (iii) the activation of the tolerance responses was affected by species latitudinal distribution. Thus, for the first time, this study integrated the biochemical and genetic responses of diverse Porphyra/Pyropia species to better understand their physiological dynamics of tolerance over a wide latitudinal range.
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Affiliation(s)
- Loretto Contreras-Porcia
- Departamento de Ecología y Biodiversidad, Facultad de Ciencias de la Vida, Universidad Andres Bello, República 440, Santiago 8370251, Chile
- Centro de Investigación Marina Quintay (CIMARQ), Facultad de Ciencias de la Vida, Universidad Andres Bello, Quintay 2531015, Chile
- Center of Applied Ecology and Sustainability (CAPES), Santiago 8331150, Chile
- Instituto Milenio en Socio-Ecología Costera (SECOS), Santiago 8370251, Chile
| | - Andrés Meynard
- Departamento de Ecología y Biodiversidad, Facultad de Ciencias de la Vida, Universidad Andres Bello, República 440, Santiago 8370251, Chile
- Centro de Investigación Marina Quintay (CIMARQ), Facultad de Ciencias de la Vida, Universidad Andres Bello, Quintay 2531015, Chile
- Center of Applied Ecology and Sustainability (CAPES), Santiago 8331150, Chile
- Instituto Milenio en Socio-Ecología Costera (SECOS), Santiago 8370251, Chile
| | - Florentina Piña
- Departamento de Ecología y Biodiversidad, Facultad de Ciencias de la Vida, Universidad Andres Bello, República 440, Santiago 8370251, Chile
- Centro de Investigación Marina Quintay (CIMARQ), Facultad de Ciencias de la Vida, Universidad Andres Bello, Quintay 2531015, Chile
- Center of Applied Ecology and Sustainability (CAPES), Santiago 8331150, Chile
- Instituto Milenio en Socio-Ecología Costera (SECOS), Santiago 8370251, Chile
| | - Manoj Kumar
- Climate Change Cluster, Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Carlos Lovazzano
- Instituto de Bioquímica y Microbiología, Facultad de Ciencias, Universidad Austral de Chile, Valdivia 5110566, Chile
- Millennium Institute for Integrative Biology (iBio), Santiago 8331150, Chile
| | - Alejandra Núñez
- Departamento de Ecología y Biodiversidad, Facultad de Ciencias de la Vida, Universidad Andres Bello, República 440, Santiago 8370251, Chile
- Centro de Investigación Marina Quintay (CIMARQ), Facultad de Ciencias de la Vida, Universidad Andres Bello, Quintay 2531015, Chile
- Center of Applied Ecology and Sustainability (CAPES), Santiago 8331150, Chile
- Instituto Milenio en Socio-Ecología Costera (SECOS), Santiago 8370251, Chile
| | - María Rosa Flores-Molina
- Departamento de Ecología y Biodiversidad, Facultad de Ciencias de la Vida, Universidad Andres Bello, República 440, Santiago 8370251, Chile
- Centro de Investigación Marina Quintay (CIMARQ), Facultad de Ciencias de la Vida, Universidad Andres Bello, Quintay 2531015, Chile
- Center of Applied Ecology and Sustainability (CAPES), Santiago 8331150, Chile
- Instituto Milenio en Socio-Ecología Costera (SECOS), Santiago 8370251, Chile
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Hsu PH, Kang LK, Lim WT, Hwang PA. Proteomics analysis reveals the mechanism of growth retardation under a specific nitrogen environment for Caulerpa lentillifera. ALGAL RES 2022. [DOI: 10.1016/j.algal.2022.102953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Sun T, Yang Z, Chen J, Li Y, Wang J, Wang X, Tang X, Xiao H. Effects of Water Loss Stress under Tidal Effects on the Epiphytic Bacterial Community of Sargassum thunbergii in the Intertidal Zone. mSphere 2022; 7:e0030722. [PMID: 36173121 PMCID: PMC9599519 DOI: 10.1128/msphere.00307-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 09/14/2022] [Indexed: 11/20/2022] Open
Abstract
Intertidal macroalgae face periodic water loss and rehydration caused by daily tidal changes. However, the effect of water loss stress on algal epiphytic bacteria has not yet been reported. In this study, the effects of water loss stress on the epiphytic bacteria community of Sargassum thunbergii were analyzed, and the different responses of epiphytic bacteria to water loss stress were compared between male and female algae. The results showed that after water loss stress, the diversity of the epiphytic bacterial community of S. thunbergii first decreased and then increased. Among the dominant taxa, the abundance of Cyanobacteria decreased significantly, whereas the abundance of Portibacter and Aquimarina first increased and then decreased. Additionally, the indicator species and the abundance of predicted functional genes related to carbon, nitrogen, and sulfur metabolism both changed significantly. More importantly, when the epiphytic bacteria were analyzed separately according to the algal sex, the changes in algal epiphytic bacterial community structure and indicator species were more significant, and there were sexual differences. Therefore, it was concluded that water loss stress has a significant effect on the community structure and function of the epiphytic bacteria on S. thunbergii. Meanwhile, the epiphytic bacteria community of two sexes of S. thunbergii differed in the response to water loss stress. IMPORTANCE Periodic water loss caused by the tide is an important environmental factor that is faced by intertidal macroalgae, but the impact of periodic water loss on the epiphytic bacterial communities associated with macroalgae is still unknown. Through this study, we found that the diversity, the relative abundance of dominant taxa, the indicator species, and the abundance of the predicted functional genes in the epiphytic bacteria on S. thunbergii changed with the time of water loss. Moreover, male and female S. thunbergii exhibited different responses to water loss stress. This study not only paves the way for the delineation of the interactions between S. thunbergii and its epiphytic bacteria but also provides new insights for the mechanisms of the adaptation and evolution of macroalgae in the intertidal zone.
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Affiliation(s)
- Tao Sun
- College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Zhibo Yang
- College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Jun Chen
- College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Yang Li
- College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Jing Wang
- College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Xiya Wang
- College of Marine Life Sciences, Ocean University of China, Qingdao, China
| | - Xuexi Tang
- College of Marine Life Sciences, Ocean University of China, Qingdao, China
- Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Hui Xiao
- College of Marine Life Sciences, Ocean University of China, Qingdao, China
- Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
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Proteomics Characterization of Food-Derived Bioactive Peptides with Anti-Allergic and Anti-Inflammatory Properties. Nutrients 2022; 14:nu14204400. [PMID: 36297084 PMCID: PMC9609859 DOI: 10.3390/nu14204400] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/17/2022] [Accepted: 10/18/2022] [Indexed: 11/30/2022] Open
Abstract
Bioactive peptides are found in foods and dietary supplements and are responsible for health benefits with applications in human and animal medicine. The health benefits include antihypertensive, antimicrobial, antithrombotic, immunomodulatory, opioid, antioxidant, anti-allergic and anti-inflammatory functions. Bioactive peptides can be obtained by microbial action, mainly by the gastrointestinal microbiota from proteins present in food, originating from either vegetable or animal matter or by the action of different gastrointestinal proteases. Proteomics can play an important role in the identification of bioactive peptides. High-resolution mass spectrometry is the principal technique used to detect and identify different types of analytes present in complex mixtures, even when available at low concentrations. Moreover, proteomics may provide the characterization of epitopes to develop new food allergy vaccines and the use of immunomodulating peptides to induce oral tolerance toward offending food allergens or even to prevent allergic sensitization. In addition, food-derived bioactive peptides have been investigated for their anti-inflammatory properties to provide safer alternatives to nonsteroidal anti-inflammatory drugs (NSAIDs). All these bioactive peptides can be a potential source of novel drugs and ingredients in food and pharmaceuticals. The following review is focused on food-derived bioactive peptides with antiallergic and anti-inflammatory properties and summarizes the new insights into the use of proteomics for their identification and quantification.
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Du G, Li X, Wang J, Che S, Zhong X, Mao Y. Discrepancy in photosynthetic responses of the red alga Pyropia yezoensis to dehydration stresses under exposure to desiccation, high salinity, and high mannitol concentration. MARINE LIFE SCIENCE & TECHNOLOGY 2022; 4:10-17. [PMID: 37073361 PMCID: PMC10077162 DOI: 10.1007/s42995-021-00115-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 07/01/2021] [Indexed: 05/03/2023]
Abstract
Macroalgae that inhabit intertidal zones are exposed to the air for several hours during low tide and must endure desiccation and high variations in temperature, light intensity, and salinity. Pyropia yezoensis (Rhodophyta, Bangiales), a typical intertidal red macroalga that is commercially cultivated in the northwestern Pacific Ocean, was investigated under different dehydration stresses of desiccation, high salinity, and high mannitol concentration. Using chlorophyll fluorescence imaging, photosynthetic activities of P. yezoensis thalli were analyzed using six parameters derived from quenching curves and rapid light curves. A distinct discrepancy was revealed in photosynthetic responses to different dehydration stresses. Dehydration caused by exposure to air resulted in rapid decreases in photosynthetic activities, which were always lower than two other stresses at the same water loss (WL) level. High salinity only reduced photosynthesis significantly at its maximum WL of 40% but maintained a relatively stable maximum quantum yield of photosystem II (PSII) (Fv/Fm). High mannitol concentration induced maximum WL of 20% for a longer time (60 min) than the other two treatments and caused no adverse influences on the six parameters at different WL except for a significant decrease in non-photochemical quenching (NPQ) at 20% WL. Illustrated by chlorophyll fluorescence images, severe spatial heterogeneities were induced by desiccation with lower values in the upper parts than the middle or basal parts of the thalli. The NPQ and rETRmax (maximum relative electron transport rate) demonstrated clear distinctions for evaluating photosynthetic responses, indicating their sensitivity and applicability. The findings of this study indicated that the natural dehydration of exposure to air results in stronger and more heterogeneous effects than those of high salinity or high mannitol concentration.
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Affiliation(s)
- Guoying Du
- Key Laboratory of Marine Genetics and Breeding (Ministry of Education), College of Marine Life Sciences, Ocean University of China, Qingdao, 266003 China
| | - Xiaojiao Li
- Qingdao West Coast New Area Marine Development Bureau, Qingdao, 266003 China
| | - Junhao Wang
- Key Laboratory of Marine Genetics and Breeding (Ministry of Education), College of Marine Life Sciences, Ocean University of China, Qingdao, 266003 China
| | - Shuai Che
- Key Laboratory of Marine Genetics and Breeding (Ministry of Education), College of Marine Life Sciences, Ocean University of China, Qingdao, 266003 China
| | - Xuefeng Zhong
- Key Laboratory of Marine Genetics and Breeding (Ministry of Education), College of Marine Life Sciences, Ocean University of China, Qingdao, 266003 China
| | - Yunxiang Mao
- Key Laboratory of Utilization and Conservation of Tropical Marine Bioresource (Ministry of Education), College of Fisheries and Life Science, Hainan Tropical Ocean University, Sanya, 572022 China
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HERNÁNDEZ-CRUZ K, JIMÉNEZ-MARTÍNEZ C, PERUCINI-AVENDAÑO M, MATEO CID LE, PEREA-FLORES MDJ, GUTIÉRREZ-LÓPEZ GF, DÁVILA-ORTIZ G. Chemical and microstructural characterization of three seaweed species from two locations of Veracruz, Mexico. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.41421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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10
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Carotenoids participate in adaptation/resistance of daily desiccation in the intertidal red alga Neopyropia yezoensis (Bangiales, Rhodophyta). ALGAL RES 2022. [DOI: 10.1016/j.algal.2021.102606] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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11
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Multi-omics responses of red algae Pyropia haitanensis to intertidal desiccation during low tides. ALGAL RES 2021. [DOI: 10.1016/j.algal.2021.102376] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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12
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Liang Z, Liu F, Wang W, Zhang P, Yuan Y, Yao H, Sun X, Wang F. A reasonable strategy for Caulerpa lentillifera J. Agardh (Bryopsidales, Chlorophyta) transportation based on the biochemical and photophysiological responses to dehydration stress. ALGAL RES 2021. [DOI: 10.1016/j.algal.2021.102304] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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13
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Patwary ZP, Paul NA, Nishitsuji K, Campbell AH, Shoguchi E, Zhao M, Cummins SF. Application of omics research in seaweeds with a focus on red seaweeds. Brief Funct Genomics 2021; 20:148-161. [PMID: 33907795 DOI: 10.1093/bfgp/elab023] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 03/24/2021] [Accepted: 03/25/2021] [Indexed: 01/01/2023] Open
Abstract
Targeted 'omics' research for seaweeds, utilizing various computational and informatics frameworks, has the potential to rapidly develop our understanding of biological processes at the molecular level and contribute to solutions for the most pressing environmental and social issues of our time. Here, a systematic review into the current status of seaweed omics research was undertaken to evaluate the biological diversity of seaweed species investigated (red, green and brown phyla), the levels to which the work was undertaken (from full genome to transcripts, proteins or metabolites) and the field of research to which it has contributed. We report that from 1994 to 2021 the majority of seaweed omics research has been performed on the red seaweeds (45% of total studies), with more than half of these studies based upon two genera Pyropia and Gracilaria. A smaller number of studies examined brown seaweed (key genera Saccharina and Sargassum) and green seaweed (primarily Ulva). Overall, seaweed omics research is most highly associated with the field of evolution (46% of total studies), followed by the fields of ecology, natural products and their biosynthesis, omics methodology and seaweed-microbe interactions. Synthesis and specific outcomes derived from omics studies in the red seaweeds are provided. Together, these studies have provided a broad-scale interrogation of seaweeds, facilitating our ability to answer fundamental queries and develop applied outcomes. Crucial to the next steps will be establishing analytical tools and databases that can be more broadly utilized by practitioners and researchers across the globe because of their shared interest in the key seaweed genera.
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Affiliation(s)
| | | | - Koki Nishitsuji
- marine genomics unit in the Okinawa Institute of Science and Technology Graduate University
| | | | - Eiichi Shoguchi
- marine genomics unit in the Okinawa Institute of Science and Technology Graduate University
| | - Min Zhao
- University of the Sunshine Coast
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14
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Wang D, You W, Chen N, Cao M, Tang X, Guan X, Qu W, Chen R, Mao Y, Poetsch A. Comparative Quantitative Proteomics Reveals the Desiccation Stress Responses of the Intertidal Seaweed NEOPORPHYRA haitanensis. JOURNAL OF PHYCOLOGY 2020; 56:1664-1675. [PMID: 33460107 DOI: 10.1111/jpy.13052] [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: 12/07/2019] [Accepted: 07/06/2020] [Indexed: 06/12/2023]
Abstract
Neoporphyra haitanensis is an economically important red seaweed that inhabits upper intertidal zones. The thallus tolerates extreme fluctuating environmental stresses (e.g., surviving more than 80% water loss during low tides). To elucidate the global molecular responses relevant to this outstanding desiccation tolerance, a quantitative proteomics analysis of N. haitanensis under different desiccation treatments as well as rehydration was performed. According to the clustering of expression patterns and the functional interpretation of the 483 significantly differentially expressed proteins, a three-stage cellular response to desiccation stress and subsequent rehydration was proposed. Stage I: at the beginning of water loss, multiple signal transduction pathways were triggered including lipid signaling, protein phosphorylation cascades, and histone acetylation controlling acetate biosynthesis to further modulate downstream hormone signaling. Protein protection by peptidyl-prolyl isomerase and ROS scavenging systems were also immediately switched on. Stage II: with the aggravation of stress, increases in antioxidant systems, the accumulation of LEA proteins, and the temporary biosynthesis of branched starch were observed. Multiple enzymes involved in redox homeostasis, including peroxiredoxin, thioredoxin, ascorbate peroxidase, superoxide dismutase, glutathione peroxidase, and glutathione reductase, were hypothesized to function in specific cellular compartments. Stage III: when the desiccated thalli had rehydrated for 30 mins, photosynthesis and carbon fixation were recovered, and antioxidant activities and protein structure protection were maintained at a high level. This work increases the understanding of the molecular responses to environmental stresses via a proteomic approach in red seaweeds and paves the way for further functional studies and genetic engineering.
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Affiliation(s)
- Dongmei Wang
- Key Laboratory of Marine Genetics and Breeding, Ocean University of China, Ministry of Education, Qingdao, 266003, China
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Wuxin You
- Plant Biochemistry, Ruhr University Bochum, Bochum, 44801, Germany
| | - Nianci Chen
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Min Cao
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Xianghai Tang
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Xiaowei Guan
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Weihua Qu
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Rui Chen
- College of Marine Life Sciences, Ocean University of China, Qingdao, 266003, China
| | - Yunxiang Mao
- Key Laboratory of Marine Genetics and Breeding, Ocean University of China, Ministry of Education, Qingdao, 266003, China
- Key Laboratory of Utilization and Conservation for Tropical Marine Bioresources, Hainan Tropical Ocean University, Ministry of Education, Sanya, China
| | - Ansgar Poetsch
- Plant Biochemistry, Ruhr University Bochum, Bochum, 44801, Germany
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China
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15
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Cho TJ, Rhee MS. Health Functionality and Quality Control of Laver ( Porphyra, Pyropia): Current Issues and Future Perspectives as an Edible Seaweed. Mar Drugs 2019; 18:E14. [PMID: 31877971 PMCID: PMC7024182 DOI: 10.3390/md18010014] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 12/20/2019] [Accepted: 12/20/2019] [Indexed: 12/11/2022] Open
Abstract
The growing interest in laver as a food product and as a source of substances beneficial to health has led to global consumer demand for laver produced in a limited area of northeastern Asia. Here we review research into the benefits of laver consumption and discuss future perspectives on the improvement of laver product quality. Variation in nutritional/functional values among product types (raw and processed (dried, roasted, or seasoned) laver) makes product-specific nutritional analysis a prerequisite for accurate prediction of health benefits. The effects of drying, roasting, and seasoning on the contents of both beneficial and harmful substances highlight the importance of managing laver processing conditions. Most research into health benefits has focused on substances present at high concentrations in laver (porphyran, Vitamin B12, taurine), with assessment of the expected effects of laver consumption. Mitigation of chemical/microbiological risks and the adoption of novel technologies to exploit under-reported biochemical characteristics of lavers are suggested as key strategies for the further improvement of laver product quality. Comprehensive analysis of the literature regarding laver as a food product and as a source of biomedical compounds highlights the possibilities and challenges for application of laver products.
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Affiliation(s)
| | - Min Suk Rhee
- Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 02841, Korea;
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16
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Liu S, Hu ZM, Zhang Q, Yang X, Critchley AT, Duan D. PI signal transduction and ubiquitination respond to dehydration stress in the red seaweed Gloiopeltis furcata under successive tidal cycles. BMC PLANT BIOLOGY 2019; 19:516. [PMID: 31771523 PMCID: PMC6880600 DOI: 10.1186/s12870-019-2125-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 11/08/2019] [Indexed: 05/13/2023]
Abstract
BACKGROUND Intermittent dehydration caused by tidal changes is one of the most important abiotic factors that intertidal seaweeds must cope with in order to retain normal growth and reproduction. However, the underlying molecular mechanisms for the adaptation of red seaweeds to repeated dehydration-rehydration cycles remain poorly understood. RESULTS We chose the red seaweed Gloiopeltis furcata as a model and simulated natural tidal changes with two consecutive dehydration-rehydration cycles occurring over 24 h in order to gain insight into key molecular pathways and regulation of genes which are associated with dehydration tolerance. Transcription sequencing assembled 32,681 uni-genes (GC content = 55.32%), of which 12,813 were annotated. Weighted gene co-expression network analysis (WGCNA) divided all transcripts into 20 modules, with Coral2 identified as the key module anchoring dehydration-induced genes. Pathways enriched analysis indicated that the ubiquitin-mediated proteolysis pathway (UPP) and phosphatidylinositol (PI) signaling system were crucial for a successful response in G. furcata. Network-establishing and quantitative reverse transcription PCR (qRT-PCR) suggested that genes encoding ubiquitin-protein ligase E3 (E3-1), SUMO-activating enzyme sub-unit 2 (SAE2), calmodulin (CaM) and inositol-1,3,4-trisphosphate 5/6-kinase (ITPK) were the hub genes which responded positively to two successive dehydration treatments. Network-based interactions with hub genes indicated that transcription factor (e.g. TFIID), RNA modification (e.g. DEAH) and osmotic adjustment (e.g. MIP, ABC1, Bam1) were related to these two pathways. CONCLUSIONS RNA sequencing-based evidence from G. furcata enriched the informational database for intertidal red seaweeds which face periodic dehydration stress during the low tide period. This provided insights into an increased understanding of how ubiquitin-mediated proteolysis and the phosphatidylinositol signaling system help seaweeds responding to dehydration-rehydration cycles.
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Affiliation(s)
- Shun Liu
- Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071 People’s Republic of China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071 People’s Republic of China
- University of Chinese Academy of Sciences, Beijing, 100049 People’s Republic of China
| | - Zi-Min Hu
- Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071 People’s Republic of China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071 People’s Republic of China
| | - Quansheng Zhang
- Ocean School, Yantai University, Yantai, 264005 People’s Republic of China
| | - Xiaoqi Yang
- Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071 People’s Republic of China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071 People’s Republic of China
- University of Chinese Academy of Sciences, Beijing, 100049 People’s Republic of China
| | - Alan T. Critchley
- Verschuren Centre for Sustainability in Energy and Environment, University of Cape Breton, Sydney, Nova Scotia Canada
| | - Delin Duan
- Key Laboratory of Experimental Marine Biology, Center for Ocean Mega-Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071 People’s Republic of China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266071 People’s Republic of China
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17
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Shi J, Wang W, Lin Y, Xu K, Xu Y, Ji D, Chen C, Xie C. Insight into transketolase of Pyropia haitanensis under desiccation stress based on integrative analysis of omics and transformation. BMC PLANT BIOLOGY 2019; 19:475. [PMID: 31694541 PMCID: PMC6836531 DOI: 10.1186/s12870-019-2076-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 10/16/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Pyropia haitanensis, distributes in the intertidal zone, can tolerate water losses exceeding 90%. However, the mechanisms enabling P. haitanensis to survive harsh conditions remain uncharacterized. To elucidate the mechanism underlying P. haitanensis desiccation tolerance, we completed an integrated analysis of its transcriptome and proteome as well as transgenic Chlamydomonas reinhardtii carrying a P. haitanensis gene. RESULTS P. haitanensis rapidly adjusted its physiological activities to compensate for water losses up to 60%, after which, photosynthesis, antioxidant systems, chaperones, and cytoskeleton were activated to response to severe desiccation stress. The integrative analysis suggested that transketolase (TKL) was affected by all desiccation treatments. Transgenic C. reinhardtii cells overexpressed PhTKL grew better than the wild-type cells in response to osmotic stress. CONCLUSION P. haitanensis quickly establishes acclimatory homeostasis regarding its transcriptome and proteome to ensure its thalli can recover after being rehydrated. Additionally, PhTKL is vital for P. haitanensis desiccation tolerance. The present data may provide new insights for the breeding of algae and plants exhibiting enhanced desiccation tolerance.
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Affiliation(s)
- Jianzhi Shi
- Fisheries College, Jimei University, Xiamen, 361021 China
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Xiamen, 361021 China
| | - Wenlei Wang
- Fisheries College, Jimei University, Xiamen, 361021 China
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Xiamen, 361021 China
| | - Yinghui Lin
- Fisheries College, Jimei University, Xiamen, 361021 China
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Xiamen, 361021 China
| | - Kai Xu
- Fisheries College, Jimei University, Xiamen, 361021 China
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Xiamen, 361021 China
| | - Yan Xu
- Fisheries College, Jimei University, Xiamen, 361021 China
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Xiamen, 361021 China
| | - Dehua Ji
- Fisheries College, Jimei University, Xiamen, 361021 China
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Xiamen, 361021 China
| | - Changsheng Chen
- Fisheries College, Jimei University, Xiamen, 361021 China
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Xiamen, 361021 China
| | - Chaotian Xie
- Fisheries College, Jimei University, Xiamen, 361021 China
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture, Xiamen, 361021 China
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18
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Zapata J, Meynard A, Anguita C, Espinoza C, Alvear P, Kumar M, Contreras-Porcia L. Non-Random Distribution and Ecophysiological Differentiation of Pyropia Species (Bangiales, Rhodophyta) Through Environmental Gradients. JOURNAL OF PHYCOLOGY 2019; 55:1140-1153. [PMID: 31295353 DOI: 10.1111/jpy.12900] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 06/19/2019] [Indexed: 06/09/2023]
Abstract
Recently 18 Bangiales seaweed species were reported for the Chilean coast, including Pyropia orbicularis and Pyropia variabilis (large [LM] and green [GM] morphotypes). Porphyra/Pyropia spp. occur mainly in the upper intertidal where desiccation stress is triggered by tidal fluctuations. However, the influence of environmental and ecophysiological variables and seasonal differences on Porphyra/Pyropia (microhabitats) intertidal distributions is unknown. Accordingly, we determined (i) the effect of environmental variables (temperature [T], relative humidity [RH], and photosynthetically active radiation [PAR]) and season on distribution, and (ii) physiological (cellular activity and lipid peroxidation [LPX]) and molecular responses (antioxidant enzymes expression at biochemical and transcript level) to desiccation stress in both Pyropia species and morphotypes (common garden experiment, on flat rocky platforms). Multivariate analyses of coverage and abundance in relation to environmental variables revealed a significant effect of temperature on P. variabilis GM distribution, GM dominating almost exclusively on rocky walls (where lowest PAR and T values but maximum RH were registered). Conversely, Pyropia orbicularis and Pyropia variabilis LM were found in high abundance on flat rocky platforms in summer, LM and GM also dominating flat rocky platforms in winter and spring. LPX and catalase activity did not differed among species in summer, while in winter activity and transcription of cat were higher in P. orbicularis than P. variabilis. Results suggest that tolerance to environmental stresses such as temperature could regulate the occurrence of P. variabilis GM on rocky walls; conversely, abundances of P. variabilis and P. orbicularis on flat rocky platforms would be also regulated by other abiotic and/or biotic factors.
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Affiliation(s)
- Javier Zapata
- Departamento de Ecología y Biodiversidad, Facultad de Ciencias de la Vida, Universidad Andres Bello, República 440, Santiago, Chile
- Centro de Investigación e Innovación para el Cambio Climático (CiiCC), Facultad de Ciencias, Universidad Santo Tomás, Ejército 146, Santiago, Chile
| | - Andrés Meynard
- Departamento de Ecología y Biodiversidad, Facultad de Ciencias de la Vida, Universidad Andres Bello, República 440, Santiago, Chile
- Centro de Investigación Marina Quintay (CIMARQ), Facultad de Ciencias de la Vida, Universidad Andres Bello, Quintay, Chile
- Center of Applied Ecology & Sustainability (CAPES), Santiago, Chile
| | - Cristóbal Anguita
- Departamento de Ecología y Biodiversidad, Facultad de Ciencias de la Vida, Universidad Andres Bello, República 440, Santiago, Chile
| | - Camila Espinoza
- Departamento de Ecología y Biodiversidad, Facultad de Ciencias de la Vida, Universidad Andres Bello, República 440, Santiago, Chile
- Centro de Investigación Marina Quintay (CIMARQ), Facultad de Ciencias de la Vida, Universidad Andres Bello, Quintay, Chile
| | - Paula Alvear
- Departamento de Ecología y Biodiversidad, Facultad de Ciencias de la Vida, Universidad Andres Bello, República 440, Santiago, Chile
- Centro de Investigación Marina Quintay (CIMARQ), Facultad de Ciencias de la Vida, Universidad Andres Bello, Quintay, Chile
| | - Manoj Kumar
- Climate Change Cluster (C3), University of Technology Sydney, Sydney, NSW, Australia
| | - Loretto Contreras-Porcia
- Departamento de Ecología y Biodiversidad, Facultad de Ciencias de la Vida, Universidad Andres Bello, República 440, Santiago, Chile
- Centro de Investigación Marina Quintay (CIMARQ), Facultad de Ciencias de la Vida, Universidad Andres Bello, Quintay, Chile
- Center of Applied Ecology & Sustainability (CAPES), Santiago, Chile
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19
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Beaulieu L. Insights into the Regulation of Algal Proteins and Bioactive Peptides Using Proteomic and Transcriptomic Approaches. Molecules 2019; 24:E1708. [PMID: 31052532 PMCID: PMC6539653 DOI: 10.3390/molecules24091708] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 04/22/2019] [Accepted: 05/01/2019] [Indexed: 11/24/2022] Open
Abstract
Oceans abound in resources of various kinds for R&D and for commercial applications. Monitoring and bioprospecting allow the identification of an increasing number of key natural resources. Macroalgae are essential elements of marine ecosystems as well as a natural resource influenced by dynamic environmental factors. They are not only nutritionally attractive but have also demonstrated potential health benefits such as antioxidant, antihypertensive, and anti-inflammatory activities. Several bioactive peptides have been observed following enzymatic hydrolysis of macroalgal proteins. In addition, significant differences in protein bioactivities and peptide extracts of wild and cultivated macroalgae have been highlighted, but the metabolic pathways giving rise to these bioactive molecules remain largely elusive. Surprisingly, the biochemistry that underlies the environmental stress tolerance of macroalgae has not been well investigated and remains poorly understood. Proteomic and functional genomic approaches based on identifying precursor proteins and bioactive peptides of macroalgae through integrated multi-omics analysis can give insights into their regulation as influenced by abiotic factors. These strategies allow evaluating the proteomics profile of regulation of macroalgae in response to different growth conditions as well as establishing a comparative transcriptome profiling targeting structural protein-coding genes. Elucidation of biochemical pathways in macroalgae could provide an innovative means of enhancing the protein quality of edible macroalgae. This could be ultimately viewed as a powerful way to drive the development of a tailored production and extraction of high value molecules. This review provides an overview of algal proteins and bioactive peptide characterization using proteomics and transcriptomic analyses.
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Affiliation(s)
- Lucie Beaulieu
- Département des Sciences des Aliments, Institut sur la Nutrition et les Aliments Fonctionnels (INAF), 2425, rue de l'Agriculture, Université Laval, Québec, QC G1V 0A6, Canada.
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20
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Calegario G, Freitas L, Santos E, Silva B, Oliveira L, Garcia G, Omachi C, Pereira R, Thompson C, Thompson F. Environmental modulation of the proteomic profiles from closely phylogenetically related populations of the red seaweed Plocamium brasiliense. PeerJ 2019; 7:e6469. [PMID: 30972241 PMCID: PMC6450377 DOI: 10.7717/peerj.6469] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 01/17/2019] [Indexed: 11/30/2022] Open
Abstract
The genus Plocamium encompasses seaweeds that are widely distributed throughout the world’s oceans, with Plocamium brasiliense found along the tropical and subtropical coasts of the Western Atlantic. This wide distribution can lead to structured populations due to environmental differences (e.g., light levels or temperature), restricted gene flow, and the presence of cryptic species. Abiotic variation can also affect gene expression, which consequently leads to differences in the seaweeds protein profile. This study aimed to analyze the genetic and proteomic profiles of P. brasiliense sampled in two geographically distinct sites on the coastline of Rio de Janeiro state, Brazil: Arraial do Cabo (P1) and Búzios (P2). The genetic profiles of macroalgal specimens from these two sites were indistinguishable as assessed by the markers UPA/23S, rbcL, and COI-5P; however, the protein profiles varied significantly between populations from the two sites. At both sites the ribulose-1,5-biphosphate carboxylase/oxygenase was the most abundant protein found in P. brasiliense specimens. The number of phycobiliproteins differed between both sites with the highest numbers being found at P1, possibly due to water depth. The differences in proteomic profiles of the two nearly identical populations of P. brasiliense suggest that environmental parameters such as light availability and desiccation might induce distinct protein expression, probably as a result of the phenotypic plasticity within this population of seaweed.
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Affiliation(s)
- Gabriela Calegario
- Institute of Biology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,SAGE-COPPE, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Lucas Freitas
- Department of Biochemistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,Department of Genetics, Evolution, Microbiology and Immunology, State University of Campinas, Campinas, São Paulo, Brazil
| | - Eidy Santos
- Unit of Biology, State University of the West Zone, Rio de Janeiro, Brazil
| | - Bruno Silva
- Institute of Biology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,SAGE-COPPE, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Louisi Oliveira
- Institute of Biology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,SAGE-COPPE, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Gizele Garcia
- Institute of Biology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,SAGE-COPPE, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,Department of Undergraduate Education, Federal University of Rio de Janeiro, Macaé, Brazil
| | - Cláudia Omachi
- Institute of Biology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Renato Pereira
- Department of Marine Biology, Fluminense Federal University, Niterói, Brazil.,Rio de Janeiro Botanical Garden, Rio de Janeiro, Brazil
| | - Cristiane Thompson
- Institute of Biology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,SAGE-COPPE, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Fabiano Thompson
- Institute of Biology, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil.,SAGE-COPPE, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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21
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Uji T, Gondaira Y, Fukuda S, Mizuta H, Saga N. Characterization and expression profiles of small heat shock proteins in the marine red alga Pyropia yezoensis. Cell Stress Chaperones 2019; 24:223-233. [PMID: 30632066 PMCID: PMC6363611 DOI: 10.1007/s12192-018-00959-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 09/20/2018] [Accepted: 12/03/2018] [Indexed: 12/14/2022] Open
Abstract
Small heat shock proteins (sHSPs) are found in all three domains of life (Bacteria, Archaea, and Eukarya) and play a critical role in protecting organisms from a range of environmental stresses. However, little is known about their physiological functions in red algae. Therefore, we characterized the sHSPs (PysHSPs) in the red macroalga Pyropia yezoensis, which inhabits the upper intertidal zone where it experiences fluctuating stressful environmental conditions on a daily and seasonal basis, and examined their expression profiles at different developmental stages and under varying environmental conditions. We identified five PysHSPs (PysHSP18.8, 19.1, 19.2, 19.5, and 25.8). Real-time quantitative reverse transcription polymerase chain reaction (qRT-PCR) analysis showed that expression of the genes PysHSP18.8, PysHSP19.5, and PysHSP25.8 was repressed at all the developmental stages under normal conditions, whereas PysHSP19.1 and PysHSP19.2 were overexpressed in mature gametophytes and sporophytes. Exposure of the gametophytes to high temperature, oxidative stress, or copper significantly increased the mRNA transcript levels of all the five genes, while exogenous application of the ethylene precursor 1-aminocylopropane-1-carboxylic acid (ACC) significantly increased the expression levels of PysHSP19.2, PysHSP19.5, and PysHSP25.8. These findings will help to further our understanding of the role of PysHSP genes and provide clues about how Pyropia species can adapt to the stressful conditions encountered in the upper intertidal zone during their life cycle.
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Affiliation(s)
- Toshiki Uji
- Division of Marine Life Science, Faculty of Fisheries Sciences, Hokkaido University, Hakodate, 041-8611, Japan.
| | - Yohei Gondaira
- Division of Marine Life Science, Faculty of Fisheries Sciences, Hokkaido University, Hakodate, 041-8611, Japan
| | - Satoru Fukuda
- Section of Food Sciences, Institute for Regional Innovation, Hirosaki University, Aomori, Aomori, 038-0012, Japan
| | - Hiroyuki Mizuta
- Division of Marine Life Science, Faculty of Fisheries Sciences, Hokkaido University, Hakodate, 041-8611, Japan
| | - Naotsune Saga
- Section of Food Sciences, Institute for Regional Innovation, Hirosaki University, Aomori, Aomori, 038-0012, Japan
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Sun P, Tang X, Bi G, Xu K, Kong F, Mao Y. Gene expression profiles of Pyropia yezoensis in response to dehydration and rehydration stresses. Mar Genomics 2018; 43:43-49. [PMID: 30279127 DOI: 10.1016/j.margen.2018.09.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Revised: 08/29/2018] [Accepted: 09/20/2018] [Indexed: 10/28/2022]
Abstract
Pyropia yezoensis is an economically important marine macroalgae, naturally distributed in the upper intertidal zone. Owing to the nature of its habitat, the thallus will periodically be exposed to seawater or atmosphere, and can lose up to 95% of its cellular water content. This makes the alga an ideal research model to investigate the mechanisms of desiccation tolerance. In this study, we investigated the response mechanisms to dehydration and rehydration stresses at the transcription level in Pyropia yezoensis. The differently expressed genes were analyzed based on the different functions of encoding proteins: effector proteins (chloroplast proteins, macromolecular protective substances, and toxicity degradation enzymes) and regulatory proteins (protein kinases and phosphatases). Under osmotic stress, the unigenes related to photosynthesis were down-regulated significantly while those encoding glutathione transferase, superoxide dismutase and heat shock proteins were up-regulated significantly. We inferred that the photosynthetic activity was reduced to prevent damage caused by photosynthetic by-products and that the expression of antioxidant enzyme was increased to prevent the damage associated with reactive oxygen species. Additionally, unigenes encoding serine/threonine kinases and phospholipases were up-regulated in response to osmotic stress, indicating that these kinases play an important role in osmotolerance. Our work will serve as an essential foundation for the understanding of desiccation tolerance mechanisms in Pyropia yezoensis in the upper intertidal zones of rocky coasts.
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Affiliation(s)
- Peipei Sun
- Key Laboratory of Marine Genetics and Breeding (MOE), College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Xianghai Tang
- Key Laboratory of Marine Genetics and Breeding (MOE), College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.
| | - Guiqi Bi
- Key Laboratory of Marine Genetics and Breeding (MOE), College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Kuipeng Xu
- Key Laboratory of Marine Genetics and Breeding (MOE), College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Fanna Kong
- Key Laboratory of Marine Genetics and Breeding (MOE), College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.
| | - Yunxiang Mao
- Key Laboratory of Marine Genetics and Breeding (MOE), College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.
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Kim EY, Choi YH, Nam TJ. Identification and antioxidant activity of synthetic peptides from phycobiliproteins of Pyropia yezoensis. Int J Mol Med 2018; 42:789-798. [PMID: 29717771 PMCID: PMC6034921 DOI: 10.3892/ijmm.2018.3650] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 04/26/2018] [Indexed: 12/16/2022] Open
Abstract
The objective of the present study was to identify peptides, based on active components of the red algae seaweed Pyropia yezoensis, able to inhibit the generation of reactive oxygen species (ROS), which is associated with aging and oxidative activities. Phycobilin, specific to red algae, covalently binds with water-soluble proteins. There are three types of pigment bound proteins, known as phycobiliproteins (PBPs): Phycoerythrin (PE), phycocyanin (PC) and allophycocyanin (APC). In the present study, PBPs reported previously to have antioxidant activities in P. yezoensis were identified and, based on these data, several peptides were synthesized (PBP 1-13) and their inhibition of ROS generation was examined. The existence of PBPs of each type, PE, PC and APC, was established in P. yezoensis and all were analyzed. In addition, PBP 1-2 and 7-9 peptides from PE were synthesized and showed antioxidant activities in HepG2 cells. In HepG2 cells, treatment with PBP2 reduced hydrogen peroxide-mediated oxidative stress and restored the expression of superoxide dismutase (SOD). Furthermore, phosphorylated nuclear factor erythroid-derived 2-like 2 (Nrf2) was elevated by PBP2 treatment. Overall, these results suggested that Nrf2-SOD pathways may be involved in the PBP2-mediated antioxidant effects. Therefore, from the investigations of P. yezoensis, several candidate peptides were identified with promising antioxidant and, potentially, anti-aging properties.
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Affiliation(s)
- Eun-Young Kim
- Institute of Fisheries Sciences, Pukyong National University, Busan 46041, Republic of Korea
| | - Youn Hee Choi
- Institute of Fisheries Sciences, Pukyong National University, Busan 46041, Republic of Korea
| | - Taek-Jeong Nam
- Institute of Fisheries Sciences, Pukyong National University, Busan 46041, Republic of Korea
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24
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Rippin M, Becker B, Holzinger A. Enhanced Desiccation Tolerance in Mature Cultures of the Streptophytic Green Alga Zygnema circumcarinatum Revealed by Transcriptomics. PLANT & CELL PHYSIOLOGY 2017; 58:2067-2084. [PMID: 29036673 PMCID: PMC5722205 DOI: 10.1093/pcp/pcx136] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Accepted: 09/05/2017] [Indexed: 05/20/2023]
Abstract
Desiccation tolerance is commonly regarded as one of the key features for the colonization of terrestrial habitats by green algae and the evolution of land plants. Extensive studies, focused mostly on physiology, have been carried out assessing the desiccation tolerance and resilience of the streptophytic genera Klebsormidium and Zygnema. Here we present transcriptomic analyses of Zygnema circumcarinatum exposed to desiccation stress. Cultures of Z. circumcarinatum grown in liquid medium or on agar plates were desiccated at ∼86% relative air humidity until the effective quantum yield of PSII [Y(II)] ceased. In general, the response to dehydration was much more pronounced in Z. circumcarinatum cultured in liquid medium for 1 month compared with filaments grown on agar plates for 7 and 12 months. Culture on solid medium enables the alga to acclimate to dehydration much better and an increase in desiccation tolerance was clearly correlated to increased culture age. Moreover, gene expression analysis revealed that photosynthesis was strongly repressed upon desiccation treatment in the liquid culture while only minor effects were detected in filaments cultured on agar plates for 7 months. Otherwise, both samples showed induction of stress protection mechanisms such as reactive oxygen species scavenging (early light-induced proteins, glutathione metabolism) and DNA repair as well as the expression of chaperones and aquaporins. Additionally, Z. circumcarinatum cultured in liquid medium upregulated sucrose-synthesizing enzymes and strongly induced membrane modifications in response to desiccation stress. These results corroborate the previously described hardening and associated desiccation tolerance in Zygnema in response to seasonal fluctuations in water availability.
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Affiliation(s)
- Martin Rippin
- University of Cologne, Cologne Biocentre, Botanical Institute, Zülpicher Str. 47b, 50674, Cologne, Germany
| | - Burkhard Becker
- University of Cologne, Cologne Biocentre, Botanical Institute, Zülpicher Str. 47b, 50674, Cologne, Germany
| | - Andreas Holzinger
- University of Innsbruck, Department of Botany, Functional Plant Biology, Sternwartestrasse 15, 6020 Innsbruck, Austria
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25
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Gupta V, Kushwaha HR. Metabolic regulatory oscillations in intertidal green seaweed Ulva lactuca against tidal cycles. Sci Rep 2017; 7:16430. [PMID: 29180713 PMCID: PMC5703862 DOI: 10.1038/s41598-017-15994-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 11/04/2017] [Indexed: 01/06/2023] Open
Abstract
The survival of wetland plant species largely relies on physiological adaptations essential for submergence and desiccation. Intertidal seaweeds, unlike terrestrial plants, have unique adaptations to submergence and can also sustain desiccation arising from tidal rhythms. This study determined the differential metabolic regulations in the inter-tidal seaweed species Ulva lactuca against the submergence and desiccation. During desiccation, the relative water content of the algal thalli declined with concomitant increase in reactive oxygen species (ROS) and lipid peroxidation. Nevertheless, the trends reversed during recovery on re-submergence and attained homeostasis. Metabolite profiling of U. lactuca revealed desiccation induced balance in energy reserve utilization by adjusting carbohydrate metabolism and switch over to ammonia metabolism. Upon re-submergence, thalli showed an increase in fermentative metabolites, pyruvate-alanine conversion, and the GABA shunt. Prolonged submergence induced substrate level phosphorylation mediated sugar biosynthesis while continuing the alternative carbon flux through fermentative metabolism, an increase in osmoprotectants glycine and betaine, sulfur bearing compounds cysteine and hypotaurine, and phenolic compound coniferaldehyde. The determined metabolic regulations in U. lactuca for submergence tolerance provide insights into potential evolutionarily conserved protective mechanisms across the green lineage and also highlights the possible role of sulfur oxoforms as strong free radical scavengers.
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Affiliation(s)
- Vishal Gupta
- Biological Oceanography Division, CSIR-National Institute of Oceanography, Goa, 403004, India.
| | - Hemant R Kushwaha
- School of Biotechnology, Jawaharlal Nehru University, 110067, New Delhi, India.
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26
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Evangelista CCS, Guidelli GV, Borges G, Araujo TF, Souza TAJD, Neves UPDC, Tunnacliffe A, Pereira TC. Multiple genes contribute to anhydrobiosis (tolerance to extreme desiccation) in the nematode Panagrolaimus superbus. Genet Mol Biol 2017; 40:790-802. [PMID: 29111563 PMCID: PMC5738622 DOI: 10.1590/1678-4685-gmb-2017-0030] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 07/20/2017] [Indexed: 11/21/2022] Open
Abstract
The molecular basis of anhydrobiosis, the state of suspended animation entered by some species during extreme desiccation, is still poorly understood despite a number of transcriptome and proteome studies. We therefore conducted functional screening by RNA interference (RNAi) for genes involved in anhydrobiosis in the holo-anhydrobiotic nematode Panagrolaimus superbus. A new method of survival analysis, based on staining, and proof-of-principle RNAi experiments confirmed a role for genes involved in oxidative stress tolerance, while a novel medium-scale RNAi workflow identified a further 40 anhydrobiosis-associated genes, including several involved in proteostasis, DNA repair and signal transduction pathways. This suggests that multiple genes contribute to anhydrobiosis in P. superbus.
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Affiliation(s)
- Cláudia Carolina Silva Evangelista
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil.,Programa de Pós-Graduação em Genética, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Giovanna Vieira Guidelli
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Gustavo Borges
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Thais Fenz Araujo
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Tiago Alves Jorge de Souza
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil.,Programa de Pós-Graduação em Genética, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Ubiraci Pereira da Costa Neves
- Departamento de Física, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Alan Tunnacliffe
- Deptartment of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, UK
| | - Tiago Campos Pereira
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil.,Programa de Pós-Graduação em Genética, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil
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27
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Fierro C, López-Cristoffanini C, Meynard A, Lovazzano C, Castañeda F, Guajardo E, Contreras-Porcia L. Expression profile of desiccation tolerance factors in intertidal seaweed species during the tidal cycle. PLANTA 2017; 245:1149-1164. [PMID: 28289905 DOI: 10.1007/s00425-017-2673-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Accepted: 03/02/2017] [Indexed: 05/26/2023]
Abstract
The transcriptional modulation of desiccation tolerance factors in P. orbicularis explains its successful recuperation after water deficit. Differential responses to air exposure clarify seaweed distribution along intertidal rocky zones. Desiccation-tolerant seaweed species, such as Pyropia orbicularis, can tolerate near 96% water loss during air exposure. To understand the phenotypic plasticity of P. orbicularis to desiccation, several tolerance factors were assessed by RT-qPCR, Western-blot analysis, and enzymatic assays during the natural desiccation-rehydration cycle. Comparative enzymatic analyses were used to evidence differential responses between P. orbicularis and desiccation-sensitive species. The results showed that during desiccation, the relative mRNA levels of genes associated with basal metabolism [trehalose phosphate synthase (tps) and pyruvate dehydrogenase (pdh)] were overexpressed in P. orbicularis. Transcript levels related to antioxidant metabolism [peroxiredoxin (prx); thioredoxin (trx); catalase (cat); lipoxygenase (lox); ferredoxin (fnr); glutathione S-transferase (gst)], cellular detoxification [ABC transporter (abc) and ubiquitin (ubq)], and signal transduction [calmodulin (cam)] increased approximately 15- to 20-fold, with the majority returning to basal levels during the final hours of rehydration. In contrast, actin (act) and transcription factor 1 (tf1) transcripts were down-regulated. ABC transporter protein levels increased in P. orbicularis during desiccation, whereas PRX transcripts decreased. The antioxidant enzymes showed higher specific activity in P. orbicularis under desiccation, and sensitive species exhibited enzymatic inactivation and scarce ABC and PRX protein detection following prolonged desiccation. In conclusion, the reported findings contribute towards understanding the ecological distribution of intertidal seaweeds at the molecular and functional levels.
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Affiliation(s)
- Camila Fierro
- Departamento de Ecología y Biodiversidad, Facultad de Ecología y Recursos Naturales, Universidad Andres Bello, República 440, Santiago, Chile
| | - Camilo López-Cristoffanini
- Departamento de Biología Evolutiva, Ecología y Ciencias Ambientales, Facultad de Biología, Universidad de Barcelona, Diagonal 643, 08028, Barcelona, Spain
| | - Andrés Meynard
- Departamento de Ecología y Biodiversidad, Facultad de Ecología y Recursos Naturales, Universidad Andres Bello, República 440, Santiago, Chile
| | - Carlos Lovazzano
- Departamento de Ecología y Biodiversidad, Facultad de Ecología y Recursos Naturales, Universidad Andres Bello, República 440, Santiago, Chile
| | - Francisco Castañeda
- Departamento de Ecología y Biodiversidad, Facultad de Ecología y Recursos Naturales, Universidad Andres Bello, República 440, Santiago, Chile
| | - Eduardo Guajardo
- Departamento de Ecología y Biodiversidad, Facultad de Ecología y Recursos Naturales, Universidad Andres Bello, República 440, Santiago, Chile
| | - Loretto Contreras-Porcia
- Departamento de Ecología y Biodiversidad, Facultad de Ecología y Recursos Naturales, Universidad Andres Bello, República 440, Santiago, Chile.
- Center of Applied Ecology and Sustainability (CAPES), Pontificia Universidad Católica de Chile, Avda. Bernardo O'Higgins 340, Santiago, Chile.
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28
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Huan L, Gu W, Gao S, Wang G. Photosynthetic activity and proteomic analysis highlights the utilization of atmospheric CO 2 by Ulva prolifera (Chlorophyta) for rapid growth. JOURNAL OF PHYCOLOGY 2016; 52:1103-1113. [PMID: 27682436 DOI: 10.1111/jpy.12469] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Accepted: 07/24/2016] [Indexed: 06/06/2023]
Abstract
Free-floating Ulva prolifera is one of the causative species of green tides. When green tides occur, massive mats of floating U. prolifera thalli accumulate rapidly in surface waters with daily growth rates as high as 56%. The upper thalli of the mats experience environmental changes such as the change in carbon source, high salinity, and desiccation. In this study, the photosynthetic performances of PSI and PSII in U. prolifera thalli exposed to different atmospheric carbon dioxide (CO2 ) levels were measured. Changes in photosynthesis within salinity treatments and dehydration under different CO2 concentrations were also analyzed. The results showed that PSII activity was enhanced as CO2 increased, suggesting that CO2 assimilation was enhanced and U. prolifera thalli can utilize CO2 in the atmosphere directly, even when under moderate stress. In addition, changes in the proteome of U. prolifera in response to salt stress were investigated. Stress-tolerance proteins appeared to have an important role in the response to salinity stress, whereas the abundance of proteins related to metabolism showed no significant change under low salinity treatments. These findings may be one of the main reasons for the extremely high growth rate of free-floating U. prolifera when green tides occur.
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Affiliation(s)
- Li Huan
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Wenhui Gu
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Shan Gao
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
| | - Guangce Wang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
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29
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30
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Kumar M, Padula MP, Davey P, Pernice M, Jiang Z, Sablok G, Contreras-Porcia L, Ralph PJ. Proteome Analysis Reveals Extensive Light Stress-Response Reprogramming in the Seagrass Zostera muelleri (Alismatales, Zosteraceae) Metabolism. FRONTIERS IN PLANT SCIENCE 2016; 7:2023. [PMID: 28144245 PMCID: PMC5239797 DOI: 10.3389/fpls.2016.02023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2016] [Accepted: 12/19/2016] [Indexed: 05/16/2023]
Abstract
Seagrasses are marine ecosystem engineers that are currently declining in abundance at an alarming rate due to both natural and anthropogenic disturbances in ecological niches. Despite reports on the morphological and physiological adaptations of seagrasses to extreme environments, little is known of the molecular mechanisms underlying photo-acclimation, and/or tolerance in these marine plants. This study applies the two-dimensional isoelectric focusing (2D-IEF) proteomics approach to identify photo-acclimation/tolerance proteins in the marine seagrass Zostera muelleri. For this, Z. muelleri was exposed for 10 days in laboratory mesocosms to saturating (control, 200 μmol photons m-2 s-1), super-saturating (SSL, 600 μmol photons m-2 s-1), and limited light (LL, 20 μmol photons m-2 s-1) irradiance conditions. Using LC-MS/MS analysis, 93 and 40 protein spots were differentially regulated under SSL and LL conditions, respectively, when compared to the control. In contrast to the LL condition, Z. muelleri robustly tolerated super-saturation light than control conditions, evidenced by their higher relative maximum electron transport rate and minimum saturating irradiance values. Proteomic analyses revealed up-regulation and/or appearances of proteins belonging to the Calvin-Benson and Krebs cycle, glycolysis, the glycine cleavage system of photorespiration, and the antioxidant system. These proteins, together with those from the inter-connected glutamate-proline-GABA pathway, shaped Z. muelleri photosynthesis and growth under SSL conditions. In contrast, the LL condition negatively impacted the metabolic activities of Z. muelleri by down-regulating key metabolic enzymes for photosynthesis and the metabolism of carbohydrates and amino acids, which is consistent with the observation with lower photosynthetic performance under LL condition. This study provides novel insights into the underlying molecular photo-acclimation mechanisms in Z. muelleri, in addition to identifying protein-based biomarkers that could be used as early indicators to detect acute/chronic light stress in seagrasses to monitor seagrass health.
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Affiliation(s)
- Manoj Kumar
- Climate Change Cluster, Faculty of Science, University of Technology Sydney (UTS)Sydney, NSW, Australia
- *Correspondence: Manoj Kumar
| | - Matthew P. Padula
- School of Life Sciences and Proteomics Core Facility, Faculty of Science, University of Technology Sydney (UTS)Sydney, NSW, Australia
| | - Peter Davey
- Climate Change Cluster, Faculty of Science, University of Technology Sydney (UTS)Sydney, NSW, Australia
| | - Mathieu Pernice
- Climate Change Cluster, Faculty of Science, University of Technology Sydney (UTS)Sydney, NSW, Australia
| | - Zhijian Jiang
- Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences (CAS)Guangzhou, China
| | - Gaurav Sablok
- Climate Change Cluster, Faculty of Science, University of Technology Sydney (UTS)Sydney, NSW, Australia
| | - Loretto Contreras-Porcia
- Departamento de Ecología y Biodiversidad, Facultad de Ecología y Recursos Naturales, Universidad Andres BelloSantiago, Chile
- Center of Applied Ecology and Sustainability (CAPES), Facultad de Ciencias Biológicas, Pontificia Universidad Católica de ChileSantiago, Chile
| | - Peter J. Ralph
- Climate Change Cluster, Faculty of Science, University of Technology Sydney (UTS)Sydney, NSW, Australia
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