1
|
Sun H, Wang J, Li Y, Yang S, Chen DD, Tu Y, Liu J, Sun Z. Synthetic biology in microalgae towards fucoxanthin production for pharmacy and nutraceuticals. Biochem Pharmacol 2024; 220:115958. [PMID: 38052271 DOI: 10.1016/j.bcp.2023.115958] [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: 09/15/2023] [Revised: 11/16/2023] [Accepted: 11/29/2023] [Indexed: 12/07/2023]
Abstract
Synthetic biology has emerged as a powerful tool for engineering biological systems to produce valuable compounds, including pharmaceuticals and nutraceuticals. Microalgae, in particular, offer a promising platform for the production of bioactive compounds due to their high productivity, low land and water requirements, and ability to perform photosynthesis. Fucoxanthin, a carotenoid pigment found predominantly in brown seaweeds and certain microalgae, has gained significant attention in recent years due to its numerous health benefits, such as antioxidation, antitumor effect and precaution osteoporosis. This review provides an overview of the principles and applications of synthetic biology in the microbial engineering of microalgae for enhanced fucoxanthin production. Firstly, the fucoxanthin bioavailability and metabolism in vivo was introduced for the beneficial roles, followed by the biological functions of anti-oxidant activity, anti-inflammatory activity, antiapoptotic role antidiabetic and antilipemic effects. Secondly, the cultivation condition and strategy were summarized for fucoxanthin improvement with low production costs. Thirdly, the genetic engineering of microalgae, including gene overexpression, knockdown and knockout strategies were discussed for further improving the fucoxanthin production. Then, synthetic biology tools of CRISPR-Cas9 genome editing, transcription activator-like effector nucleases as well as modular assembly and chassis engineering were proposed to precise modification of microalgal genomes to improve fucoxanthin production. Finally, challenges and future perspectives were discussed to realize the industrial production and development of functional foods of fucoxanthin from microalgae.
Collapse
Affiliation(s)
- Han Sun
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education; International Research Center for Marine Biosciences, Ministry of Science and Technology; Shanghai Ocean University, Shanghai 201306, China; Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
| | - Jia Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China
| | - Yuelian Li
- China National Chemical Information Center, Beijing 100020, China
| | - Shufang Yang
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, China
| | | | - Yidong Tu
- Technology Center, Shanghai Inoherb Co. Ltd, 121 Chengyin Road, Shanghai 200083, China
| | - Jin Liu
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, Algae Innovation Center for Engineering Research, School of Resources and Environment, Nanchang University, Nanchang 330031, China
| | - Zheng Sun
- Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education; International Research Center for Marine Biosciences, Ministry of Science and Technology; Shanghai Ocean University, Shanghai 201306, China; Marine Biomedical Science and Technology Innovation Platform of Lin-gang Special Area, Shanghai 201306, China.
| |
Collapse
|
2
|
Sands E, Davies S, Puxty RJ, Vergé V, Bouget FY, Scanlan DJ, Carré IA. Genetic and physiological responses to light quality in a deep ocean ecotype of Ostreococcus, an ecologically important photosynthetic picoeukaryote. JOURNAL OF EXPERIMENTAL BOTANY 2023; 74:6773-6789. [PMID: 37658791 PMCID: PMC10662239 DOI: 10.1093/jxb/erad347] [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: 03/27/2023] [Accepted: 08/31/2023] [Indexed: 09/05/2023]
Abstract
Phytoplankton are exposed to dramatic variations in light quality when cells are carried by upwelling or downwelling currents or encounter sediment. We investigated the potential impact of light quality changes in Ostreococcus, a key marine photosynthetic picoeukaryote, by analysing changes in its transcriptome, pigment content, and photophysiology after acclimation to monochromatic red, green, or blue light. The clade B species RCC809, isolated from the deep euphotic zone of the tropical Atlantic Ocean, responded to blue light by accelerating cell division at the expense of storage reserves and by increasing the relative level of blue-light-absorbing pigments. It responded to red and green light by increasing its potential for photoprotection. In contrast, the clade A species OTTH0595, which originated from a shallow water environment, showed no difference in photosynthetic properties and minor differences in carotenoid contents between light qualities. This was associated with the loss of candidate light-quality responsive promoter motifs identified in RCC809 genes. These results demonstrate that light quality can have a major influence on the physiology of eukaryotic phytoplankton and suggest that different light quality environments can drive selection for diverse patterns of responsiveness and environmental niche partitioning.
Collapse
Affiliation(s)
- Elizabeth Sands
- School of Life Sciences, University of Warwick, Coventry, CV4 7AL, UK
| | - Sian Davies
- School of Life Sciences, University of Warwick, Coventry, CV4 7AL, UK
| | | | - Valerie Vergé
- Université Pierre et Marie Curie, Paris 06, UMR 7621, Laboratoire d’Océanographie Microbienne, Observatoire Océanologique, Banyuls sur Mer, France
| | - François-Yves Bouget
- Université Pierre et Marie Curie, Paris 06, UMR 7621, Laboratoire d’Océanographie Microbienne, Observatoire Océanologique, Banyuls sur Mer, France
| | | | | |
Collapse
|
3
|
Das S, Lizon F, Gevaert F, Bialais C, Duong G, Ouddane B, Souissi S. Assessing indicators of arsenic toxicity using variable fluorescence in a commercially valuable microalgae: Physiological and toxicological aspects. JOURNAL OF HAZARDOUS MATERIALS 2023; 452:131215. [PMID: 37001210 DOI: 10.1016/j.jhazmat.2023.131215] [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: 12/08/2022] [Revised: 02/17/2023] [Accepted: 03/13/2023] [Indexed: 05/03/2023]
Abstract
Indicators signaling Arsenic (As) stress through physiology of microalgae using non-destructive methods like variable fluorescence are rare but requisite. This study reports stress markers indicating arsenic (As) toxicity (in two concentrations 11.25 µg/L and 22.5 µg/L compared to a control) exposed to a microalga (Diacronema lutheri), using fast repetition rate fluorometry (FRRf). Growth and physiological parameters such as cell density, chl a and the maximum quantum yield Fv/Fm showed coherence and impeded after the exponential phase (day 9 - day 12) in As treatments compared to the control (p < 0.05). On contrary photo-physiological constants were elevated showing higher optical (aLHII) and functional [Sigma (σPSII)] absorption cross-section for the As treatments (p < 0.05) further implying the lack of biomass production yet an increase in light absorption. In addition, As exposure increased the energy dissipation by heat (NPQ-NSV) showing a strong relationship with the de-epoxidation ratio (DR) involving photoprotective pigments. Total As bioaccumulation by D. lutheri showed a strong affinity with Fe adsorption throughout the algal growth curve. This study suggests some prompt photo-physiological proxies signaling As contamination and endorsing its usefulness in risk assessments, given the high toxicity and ubiquitous presence of As in the ecosystem.
Collapse
Affiliation(s)
- Shagnika Das
- Univ. Lille, CNRS, Univ. Littoral Côte d'Opale, IRD, UMR 8187 - LOG - Laboratoire d'Océanologie et de Géosciences, Station marine de Wimereux, F-59000 Lille, France; Amity Institute of Marine Science and Technology, Amity Institute of Biotechnology, Amity University, Noida, UP, India.
| | - Fabrice Lizon
- Univ. Lille, CNRS, Univ. Littoral Côte d'Opale, IRD, UMR 8187 - LOG - Laboratoire d'Océanologie et de Géosciences, Station marine de Wimereux, F-59000 Lille, France
| | - François Gevaert
- Univ. Lille, CNRS, Univ. Littoral Côte d'Opale, IRD, UMR 8187 - LOG - Laboratoire d'Océanologie et de Géosciences, Station marine de Wimereux, F-59000 Lille, France
| | - Capucine Bialais
- Univ. Lille, CNRS, Univ. Littoral Côte d'Opale, IRD, UMR 8187 - LOG - Laboratoire d'Océanologie et de Géosciences, Station marine de Wimereux, F-59000 Lille, France
| | - Gwendoline Duong
- Univ. Lille, CNRS, Univ. Littoral Côte d'Opale, IRD, UMR 8187 - LOG - Laboratoire d'Océanologie et de Géosciences, Station marine de Wimereux, F-59000 Lille, France
| | - Baghdad Ouddane
- Univ. Lille, CNRS, UMR 8516 - LASIRE - Equipe Physico-chimie de l'Environnement, Bâtiment C8, F-59000 Lille, France
| | - Sami Souissi
- Univ. Lille, CNRS, Univ. Littoral Côte d'Opale, IRD, UMR 8187 - LOG - Laboratoire d'Océanologie et de Géosciences, Station marine de Wimereux, F-59000 Lille, France
| |
Collapse
|
4
|
Pistelli L, Del Mondo A, Smerilli A, Corato F, Sansone C, Brunet C. Biotechnological response curve of the cyanobacterium Spirulina subsalsa to light energy gradient. BIOTECHNOLOGY FOR BIOFUELS AND BIOPRODUCTS 2023; 16:28. [PMID: 36803279 PMCID: PMC9940373 DOI: 10.1186/s13068-023-02277-4] [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: 12/02/2022] [Accepted: 02/04/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Microalgae represent a suitable and eco-sustainable resource for human needs thanks to their fast growth ability, together with the great diversity in species and intracellular secondary bioactive metabolites. These high-added-value compounds are of great interest for human health or animal feed. The intracellular content of these valuable compound families is tightly associated with the microalgal biological state and responds to environmental cues, e.g., light. Our study develops a Biotechnological response curve strategy exploring the bioactive metabolites synthesis in the marine cyanobacterium Spirulina subsalsa over a light energy gradient. The Relative Light energy index generated in our study integrates the red, green and blue photon flux density with their relative photon energy. The Biotechnological response curve combined biochemical analysis of the macromolecular composition (total protein, lipid, and carbohydrate content), total sterols, polyphenols and flavonoids, carotenoids, phenolic compounds, vitamins (A, B1, B2, B6, B9, B12, C, D2, D3, E, H, and K1), phycobiliproteins, together with the antioxidant activity of the biomass as well as the growth ability and photosynthesis. RESULTS Results demonstrated that light energy significantly modulate the biochemical status of the microalga Spirulina subsalsa revealing the relevance of the light energy index to explain the light-induced biological variability. The sharp decrease of the photosynthetic rate at high light energy was accompanied with an increase of the antioxidant network response, such as carotenoids, total polyphenols, and the antioxidant capacity. Conversely, low light energy favorized the intracellular content of lipids and vitamins (B2, B6, B9, D3, K1, A, C, H, and B12) compared to high light energy. CONCLUSIONS Results of the Biotechnological response curves were discussed in their functional and physiological relevance as well as for the essence of their potential biotechnological applications. This study emphasized the light energy as a relevant tool to explain the biological responses of microalgae towards light climate variability, and, therefore, to design metabolic manipulation of microalgae.
Collapse
Affiliation(s)
- Luigi Pistelli
- Stazione zoologica Anton Dohrn, sede Molosiglio Marina Acton, via ammiraglio F. Acton, 55., 80133, Naples, Italy
| | - Angelo Del Mondo
- Stazione zoologica Anton Dohrn, sede Molosiglio Marina Acton, via ammiraglio F. Acton, 55., 80133, Naples, Italy
| | - Arianna Smerilli
- Stazione zoologica Anton Dohrn, sede Molosiglio Marina Acton, via ammiraglio F. Acton, 55., 80133, Naples, Italy
| | - Federico Corato
- Stazione zoologica Anton Dohrn, villa comunale, 80121, Naples, Italy
| | - Clementina Sansone
- Stazione zoologica Anton Dohrn, sede Molosiglio Marina Acton, via ammiraglio F. Acton, 55., 80133, Naples, Italy.
| | - Christophe Brunet
- Stazione zoologica Anton Dohrn, sede Molosiglio Marina Acton, via ammiraglio F. Acton, 55., 80133, Naples, Italy
| |
Collapse
|
5
|
Calvaruso C, Stefanidis K, Büchel C. Photoacclimation impacts the molecular features of photosystem supercomplexes in the centric diatom Thalassiosira pseudonana. BIOCHIMICA ET BIOPHYSICA ACTA. BIOENERGETICS 2022; 1863:148589. [PMID: 35779585 DOI: 10.1016/j.bbabio.2022.148589] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 06/10/2022] [Accepted: 06/24/2022] [Indexed: 06/15/2023]
Abstract
In diatoms, light-harvesting processes take place in a specific group of proteins, called fucoxanthin chlorophyll a/c proteins (FCP). This group includes many members and represents the major characteristic of the diatom photosynthetic apparatus, with specific pigments bound (chlorophyll c, fucoxanthin, diadino- and diatoxanthin besides chlorophyll a). In thylakoids, FCP and photosystems (PS) form multimeric supercomplexes. In this study, we compared the biochemical properties of PS supercomplexes isolated from Thalassiosira pseudonana cells grown under low light or high light conditions, respectively. High light acclimation changed the molecular features of the PS and their ratio in thylakoids. In PSII, no obvious changes in polypeptide composition were observed, whereas for PSI changes in one specific group of FCP proteins were detected. As reported before, the amount of xanthophyll cycle pigments and their de-epoxidation ratio was increased in PSI under HL. In PSII, however, no additional xanthophyll cycle pigments occurred, but the de-epoxidation ratio was increased as well. This comparison suggests how mechanisms of photoprotection might take place within and in the proximity of the PS, which gives new insights into the capacity of diatoms to adapt to different conditions and in different environments.
Collapse
Affiliation(s)
- Claudio Calvaruso
- Institute of Molecular Biosciences, Goethe University Frankfurt, 60438 Frankfurt am Main, Germany
| | - Konstantinos Stefanidis
- Institute of Molecular Biosciences, Goethe University Frankfurt, 60438 Frankfurt am Main, Germany
| | - Claudia Büchel
- Institute of Molecular Biosciences, Goethe University Frankfurt, 60438 Frankfurt am Main, Germany.
| |
Collapse
|
6
|
Potential for the Production of Carotenoids of Interest in the Polar Diatom Fragilariopsis cylindrus. Mar Drugs 2022; 20:md20080491. [PMID: 36005496 PMCID: PMC9409807 DOI: 10.3390/md20080491] [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: 05/24/2022] [Revised: 07/15/2022] [Accepted: 07/27/2022] [Indexed: 01/25/2023] Open
Abstract
Carotenoid xanthophyll pigments are receiving growing interest in various industrial fields due to their broad and diverse bioactive and health beneficial properties. Fucoxanthin (Fx) and the inter-convertible couple diadinoxanthin–diatoxanthin (Ddx+Dtx) are acknowledged as some of the most promising xanthophylls; they are mainly synthesized by diatoms (Bacillariophyta). While temperate strains of diatoms have been widely investigated, recent years showed a growing interest in using polar strains, which are better adapted to the natural growth conditions of Nordic countries. The aim of the present study was to explore the potential of the polar diatom Fragilariopsis cylindrus in producing Fx and Ddx+Dtx by means of the manipulation of the growth light climate (daylength, light intensity and spectrum) and temperature. We further compared its best capacity to the strongest xanthophyll production levels reported for temperate counterparts grown under comparable conditions. In our hands, the best growing conditions for F. cylindrus were a semi-continuous growth at 7 °C and under a 12 h light:12 h dark photoperiod of monochromatic blue light (445 nm) at a PUR of 11.7 μmol photons m−2 s−1. This allowed the highest Fx productivity of 43.80 µg L−1 day−1 and the highest Fx yield of 7.53 µg Wh−1, more than two times higher than under ‘white’ light. For Ddx+Dtx, the highest productivity (4.55 µg L−1 day−1) was reached under the same conditions of ‘white light’ and at 0 °C. Our results show that F. cylindrus, and potentially other polar diatom strains, are very well suited for Fx and Ddx+Dtx production under conditions of low temperature and light intensity, reaching similar productivity levels as model temperate counterparts such as Phaeodactylum tricornutum. The present work supports the possibility of using polar diatoms as an efficient cold and low light-adapted bioresource for xanthophyll pigments, especially usable in Nordic countries.
Collapse
|
7
|
Iwasaki K, Szabó M, Tamburic B, Evenhuis C, Zavafer A, Kuzhiumparambil U, Ralph P. Investigating the impact of light quality on macromolecular composition of Chaetoceros muelleri. FUNCTIONAL PLANT BIOLOGY : FPB 2022; 49:554-564. [PMID: 34635201 DOI: 10.1071/fp21131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 09/02/2021] [Indexed: 06/13/2023]
Abstract
Diatoms (Bacillariophyceae) are important to primary productivity of aquatic ecosystems. This algal group is also a valuable source of high value compounds that are utilised as aquaculture feed. The productivity of diatoms is strongly driven by light and CO2 availability, and macro- and micronutrient concentrations. The light dependency of biomass productivity and metabolite composition is well researched in diatoms, but information on the impact of light quality, particularly the productivity return on energy invested when using different monochromatic light sources, remains scarce. In this work, the productivity return on energy invested of improving growth rate, photosynthetic activity, and metabolite productivity of the diatom Chaetoceros muelleri under defined wavelengths (blue, red, and green) as well as while light is analysed. By adjusting the different light qualities to equal photosynthetically utilisable radiation, it was found that the growth rate and photosynthetic oxygen evolution was unchanged under white, blue, and green light, but it was lower under red light. Blue light improved the productivity return on energy invested for biomass, total protein, total lipid, total carbohydrate, and in fatty acids production, which would suggest that blue light should be used for aquaculture feed production.
Collapse
Affiliation(s)
- Kenji Iwasaki
- Climate Change Cluster (C3), Faculty of Science, University of Technology Sydney, NSW, Australia
| | - Milán Szabó
- Climate Change Cluster (C3), Faculty of Science, University of Technology Sydney, NSW, Australia; and Institute of Plant Biology, Biological Research Centre, Hungary, Eötvös Loránd Research Network (ELKH), Szeged, Hungary
| | - Bojan Tamburic
- Water Research Centre, School of Civil and Environmental Engineering, UNSW, Sydney, NSW, Australia
| | - Christian Evenhuis
- Climate Change Cluster (C3), Faculty of Science, University of Technology Sydney, NSW, Australia
| | - Alonso Zavafer
- Climate Change Cluster (C3), Faculty of Science, University of Technology Sydney, NSW, Australia; and Research School of Biology, Australian National University, Canberra, ACT, Australia
| | | | - Peter Ralph
- Climate Change Cluster (C3), Faculty of Science, University of Technology Sydney, NSW, Australia
| |
Collapse
|
8
|
Sun H, Yang S, Zhao W, Kong Q, Zhu C, Fu X, Zhang F, Liu Z, Zhan Y, Mou H, He Y. Fucoxanthin from marine microalgae: A promising bioactive compound for industrial production and food application. Crit Rev Food Sci Nutr 2022; 63:7996-8012. [PMID: 35319314 DOI: 10.1080/10408398.2022.2054932] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
Fucoxanthin attracts increasing attentions due to its potential health benefits, which has been exploited in several food commodities. However, fucoxanthin available for industrial application is mainly derived from macroalgae, and is not yet sufficiently cost-effective compared with microalgae. This review focuses on the strategies to improve fucoxanthin productivity and approaches to reduce downstream costs in microalgal production. Here we comprehensively and critically discuss ways and methods to increase the cell growth rate and fucoxanthin content of marine microalgae, including strain screening, condition optimization, design of culture mode, metabolic and genetic engineering, and scale-up production of fucoxanthin. The approaches in downstream processes provide promising alternatives for fucoxanthin production from marine microalgae. Besides, this review summarizes fucoxanthin improvements in solubility and bioavailability by delivery system of emulsion, nanoparticle, and hydrogel, and discusses fucoxanthin metabolism with gut microbes. Fucoxanthin production from marine microalgae possesses numerous advantages in environmental sustainability and final profits to meet incremental global market demands of fucoxanthin. Strategies of adaptive evolution, multi-stage cultivation, and bioreactor improvements have tremendous potentials to improve economic viability of the production. Moreover, fucoxanthin is promising as the microbiota-targeted ingredient, and nanoparticles can protect fucoxanthin from external environmental factors for improving the solubility and bioavailability.
Collapse
Affiliation(s)
- Han Sun
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Shufang Yang
- Institute for Advanced Study, Shenzhen University, Shenzhen, China
| | - Weiyang Zhao
- Department of Food Science, Cornell University, Ithaca, New York, USA
| | - Qing Kong
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Changliang Zhu
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Xiaodan Fu
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Fang Zhang
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Zhemin Liu
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Yuming Zhan
- Shandong Feed and Veterinary Drug Quality Center, Jinan, Shandong, China
| | - Haijin Mou
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Yongjin He
- College of Life Sciences, Fujian Normal University, Fuzhou, Fujian, China
| |
Collapse
|
9
|
Das S, Gevaert F, Ouddane B, Duong G, Souissi S. Single toxicity of arsenic and combined trace metal exposure to a microalga of ecological and commercial interest: Diacronema lutheri. CHEMOSPHERE 2022; 291:132949. [PMID: 34798102 DOI: 10.1016/j.chemosphere.2021.132949] [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: 10/01/2021] [Revised: 11/14/2021] [Accepted: 11/15/2021] [Indexed: 06/13/2023]
Abstract
Eco-toxicological assays with species of economic interest such as Diacronema lutheri are essential for industries that produce aquaculture feed, natural food additives and also in drug developing industries. Our study involved the exposure of a single and combined toxicity of arsenic (As V) to D. lutheri for the entire algal growth phase and highlighted that a combined exposure of As V with other essential (Copper, Cu; Nickel, Ni) and non-essential (Cadmium, Cd; Lead, Pb) trace metals reduced significantly the cell number, chlorophyll a content, and also significantly increased the de-epoxidation ratio (DR) as a stress response when compared to the single toxicity of As V. Arsenic, as one of the ubiquitous trace metal and an active industrial effluent is reported to have an increased bio-concentration factor when in mixture with other trace metals in this study. In the combined exposure, the concentration of total As bio-accumulated by D. lutheri was higher than in the single exposure. Hence, polluted areas with the prevalence of multiple contaminants along with the highly toxic trace metals like As can impose a greater risk to the exposed organisms that may get further bio-magnified in the food chain. Our study highlights the consequences and the response of D. lutheri in terms of contamination from single and multiple trace metals in order to obtain a safer biomass production for the growing need of natural derivatives.
Collapse
Affiliation(s)
- Shagnika Das
- Univ. Lille, CNRS, Univ. Littoral Côte D'Opale, IRD, UMR 8187 - LOG - Laboratoire D'Océanologie et de Géosciences, Station Marine de Wimereux, F-59000, Lille, France; Univ. Lille, CNRS, UMR 8516 - LASIRE - Equipe Physico-chimie de L'Environnement, Bâtiment C8, F-59000, Lille, France
| | - François Gevaert
- Univ. Lille, CNRS, Univ. Littoral Côte D'Opale, IRD, UMR 8187 - LOG - Laboratoire D'Océanologie et de Géosciences, Station Marine de Wimereux, F-59000, Lille, France
| | - Baghdad Ouddane
- Univ. Lille, CNRS, UMR 8516 - LASIRE - Equipe Physico-chimie de L'Environnement, Bâtiment C8, F-59000, Lille, France
| | - Gwendoline Duong
- Univ. Lille, CNRS, Univ. Littoral Côte D'Opale, IRD, UMR 8187 - LOG - Laboratoire D'Océanologie et de Géosciences, Station Marine de Wimereux, F-59000, Lille, France
| | - Sami Souissi
- Univ. Lille, CNRS, Univ. Littoral Côte D'Opale, IRD, UMR 8187 - LOG - Laboratoire D'Océanologie et de Géosciences, Station Marine de Wimereux, F-59000, Lille, France.
| |
Collapse
|
10
|
Annunziata R, Mele BH, Marotta P, Volpe M, Entrambasaguas L, Mager S, Stec K, d’Alcalà MR, Sanges R, Finazzi G, Iudicone D, Montresor M, Ferrante MI. Trade-off between sex and growth in diatoms: Molecular mechanisms and demographic implications. SCIENCE ADVANCES 2022; 8:eabj9466. [PMID: 35044817 PMCID: PMC8769554 DOI: 10.1126/sciadv.abj9466] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Diatoms are fast-growing and winning competitors in aquatic environments, possibly due to optimized growth performance. However, their life cycles are complex, heteromorphic, and not fully understood. Here, we report on the fine control of cell growth and physiology during the sexual phase of the marine diatom Pseudo-nitzschia multistriata. We found that mating, under nutrient replete conditions, induces a prolonged growth arrest in parental cells. Transcriptomic analyses revealed down-regulation of genes related to major metabolic functions from the early phases of mating. Single-cell photophysiology also pinpointed an inhibition of photosynthesis and storage lipids accumulated in the arrested population, especially in gametes and zygotes. Numerical simulations revealed that growth arrest affects the balance between parental cells and their siblings, possibly favoring the new generation. Thus, in addition to resources availability, life cycle traits contribute to shaping the species ecological niches and must be considered to describe and understand the structure of plankton communities.
Collapse
Affiliation(s)
- Rossella Annunziata
- Stazione Zoologica Anton Dohrn, Napoli, Italy
- Corresponding author. (R.A.); (M.I.F.)
| | | | | | | | | | | | | | | | - Remo Sanges
- International School for Advanced Studies (SISSA), Via Bonomea 265, Trieste 34136, Italy
| | - Giovanni Finazzi
- Université Grenoble Alpes (UGA), Centre National Recherche Scientifique (CNRS), Commissariat Energie Atomique, Energies Alternatives (CEA), Institut National Recherche Agriculture, Alimentation, Environnement (INRAE), Interdisciplinary Research Institute of Grenoble, IRIG-Laboratoire de Physiologie Cellulaire et Végétale, Grenoble, France
| | | | | | | |
Collapse
|
11
|
Parkes R, Barone ME, Aranyos A, Fierli D, Koehler H, Gillespie E, Touzet N. Species-specific responses in pigments and fatty acids of five freshwater chlorophytes exposed to varying cultivation conditions. Process Biochem 2022. [DOI: 10.1016/j.procbio.2021.11.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
12
|
Michel-Rodriguez M, Lefebvre S, Crouvoisier M, Mériaux X, Lizon F. Underwater light climate and wavelength dependence of microalgae photosynthetic parameters in a temperate sea. PeerJ 2021; 9:e12101. [PMID: 34707925 PMCID: PMC8496463 DOI: 10.7717/peerj.12101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Accepted: 08/11/2021] [Indexed: 11/20/2022] Open
Abstract
Studying how natural phytoplankton adjust their photosynthetic properties to the quantity and quality of underwater light (i.e. light climate) is essential to understand primary production. A wavelength-dependent photoacclimation strategy was assessed using a multi-color pulse-amplitude-modulation chlorophyll fluorometer for phytoplankton samples collected in the spring at 19 locations across the English Channel. The functional absorption cross section of photosystem II, photosynthetic electron transport (PETλ) parameters and non-photochemical quenching were analyzed using an original approach with a sequence of three statistical analyses. Linear mixed-effects models using wavelength as a longitudinal variable were first applied to distinguish the fixed effect of the population from the random effect of individuals. Population and individual trends of wavelength-dependent PETλ parameters were consistent with photosynthesis and photoacclimation theories. The natural phytoplankton communities studied were in a photoprotective state for blue wavelengths (440 and 480 nm), but not for other wavelengths (green (540 nm), amber (590 nm) and light red (625 nm)). Population-detrended PETλ values were then used in multivariate analyses (partial triadic analysis and redundancy analysis) to study ecological implications of PETλ dynamics among water masses. Two wavelength ratios based on the microalgae saturation parameter Ek (in relative and absolute units), related to the hydrodynamic regime and underwater light climate, clearly confirmed the physiological state of microalgae. They also illustrate more accurately that natural phytoplankton communities can implement photoacclimation processes that are influenced by in situ light quality during the daylight cycle in temporarily and weakly stratified water. Ecological implications and consequences of PETλ are discussed in the context of turbulent coastal ecosystems.
Collapse
Affiliation(s)
- Monica Michel-Rodriguez
- Univ. Lille, CNRS, Univ. Littoral Côte d'Opale, UMR 8187 LOG, Laboratoire d'Océanologie et de Géosciences, Lille, France
| | - Sebastien Lefebvre
- Univ. Lille, CNRS, Univ. Littoral Côte d'Opale, UMR 8187 LOG, Laboratoire d'Océanologie et de Géosciences, Lille, France
| | - Muriel Crouvoisier
- Univ. Lille, CNRS, Univ. Littoral Côte d'Opale, UMR 8187 LOG, Laboratoire d'Océanologie et de Géosciences, Lille, France
| | - Xavier Mériaux
- Univ. Littoral Côte d'Opale, CNRS, Univ. Lille, UMR 8187-LOG-Laboratoire d'Océanologie et de Géosciences, Wimereux, France
| | - Fabrice Lizon
- Univ. Lille, CNRS, Univ. Littoral Côte d'Opale, UMR 8187 LOG, Laboratoire d'Océanologie et de Géosciences, Lille, France
| |
Collapse
|
13
|
Milito A, Castellano I, Damiani E. From Sea to Skin: Is There a Future for Natural Photoprotectants? Mar Drugs 2021; 19:md19070379. [PMID: 34209059 PMCID: PMC8303403 DOI: 10.3390/md19070379] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 06/28/2021] [Accepted: 06/28/2021] [Indexed: 12/20/2022] Open
Abstract
In the last few decades, the thinning of the ozone layer due to increased atmospheric pollution has exacerbated the negative effects of excessive exposure to solar ultraviolet radiation (UVR), and skin cancer has become a major public health concern. In order to prevent skin damage, public health advice mainly focuses on the use of sunscreens, along with wearing protective clothing and avoiding sun exposure during peak hours. Sunscreens present on the market are topical formulations that contain a number of different synthetic, organic, and inorganic UVR filters with different absorbance profiles, which, when combined, provide broad UVR spectrum protection. However, increased evidence suggests that some of these compounds cause subtle damage to marine ecosystems. One alternative may be the use of natural products that are produced in a wide range of marine species and are mainly thought to act as a defense against UVR-mediated damage. However, their potential for human photoprotection is largely under-investigated. In this review, attention has been placed on the molecular strategies adopted by marine organisms to counteract UVR-induced negative effects and we provide a broad portrayal of the recent literature concerning marine-derived natural products having potential as natural sunscreens/photoprotectants for human skin. Their chemical structure, UVR absorption properties, and their pleiotropic role as bioactive molecules are discussed. Most studies strongly suggest that these natural products could be promising for use in biocompatible sunscreens and may represent an alternative eco-friendly approach to protect humans against UV-induced skin damage.
Collapse
Affiliation(s)
- Alfonsina Milito
- Centre for Research in Agricultural Genomics, Department of Molecular Genetics, Cerdanyola, 08193 Barcelona, Spain;
| | - Immacolata Castellano
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Via Pansini 5, 80131 Napoli, Italy
- Department of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy
- Correspondence: (I.C.); (E.D.)
| | - Elisabetta Damiani
- Department of Life and Environmental Sciences, Polytechnic University of the Marche, Via Brecce Bianche, 60131 Ancona, Italy
- Correspondence: (I.C.); (E.D.)
| |
Collapse
|
14
|
Pistelli L, Sansone C, Smerilli A, Festa M, Noonan DM, Albini A, Brunet C. MMP-9 and IL-1β as Targets for Diatoxanthin and Related Microalgal Pigments: Potential Chemopreventive and Photoprotective Agents. Mar Drugs 2021; 19:354. [PMID: 34206447 PMCID: PMC8303339 DOI: 10.3390/md19070354] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 06/15/2021] [Accepted: 06/20/2021] [Indexed: 12/13/2022] Open
Abstract
Photochemoprevention can be a valuable approach to counteract the damaging effects of environmental stressors (e.g., UV radiations) on the skin. Pigments are bioactive molecules, greatly attractive for biotechnological purposes, and with promising applications for human health. In this context, marine microalgae are a valuable alternative and eco-sustainable source of pigments that still need to be taken advantage of. In this study, a comparative in vitro photochemopreventive effects of twenty marine pigments on carcinogenic melanoma model cell B16F0 from UV-induced injury was setup. Pigment modulation of the intracellular reactive oxygen species (ROS) concentration and extracellular release of nitric oxide (NO) was investigated. At the cell signaling level, interleukin 1-β (IL-1β) and matrix metallopeptidase 9 protein (MMP-9) protein expression was examined. These processes are known to be involved in the signaling pathway, from UV stress to cancer induction. Diatoxanthin resulted the best performing pigment in lowering MMP-9 levels and was able to strongly lower IL-1β. This study highlights the pronounced bioactivity of the exclusively aquatic carotenoid diatoxanthin, among the others. It is suggested increasing research efforts on this molecule, emphasizing that a deeper integration of plant ecophysiological studies into a biotechnological context could improve the exploration and exploitation of bioactive natural products.
Collapse
Affiliation(s)
- Luigi Pistelli
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie Marine, Villa Comunale, 80121 Napoli, Italy; (L.P.); (A.S.); (C.B.)
| | - Clementina Sansone
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie Marine, Villa Comunale, 80121 Napoli, Italy; (L.P.); (A.S.); (C.B.)
| | - Arianna Smerilli
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie Marine, Villa Comunale, 80121 Napoli, Italy; (L.P.); (A.S.); (C.B.)
| | - Marco Festa
- Laboratory of Vascular Biology and Angiogenesis, IRCCS MultiMedica, 20138 Milan, Italy; (M.F.); (A.A.)
| | - Douglas M. Noonan
- Department of Biotechnology and Life Sciences, University of Insubria, 21100 Varese, Italy;
- Unit of Molecular Pathology, Biochemistry and Immunology, IRCCS MultiMedica, 20138 Milan, Italy
| | - Adriana Albini
- Laboratory of Vascular Biology and Angiogenesis, IRCCS MultiMedica, 20138 Milan, Italy; (M.F.); (A.A.)
| | - Christophe Brunet
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie Marine, Villa Comunale, 80121 Napoli, Italy; (L.P.); (A.S.); (C.B.)
| |
Collapse
|
15
|
Villanova V, Galasso C, Fiorini F, Lima S, Brönstrup M, Sansone C, Brunet C, Brucato A, Scargiali F. Biological and chemical characterization of new isolated halophilic microorganisms from saltern ponds of Trapani, Sicily. ALGAL RES 2021. [DOI: 10.1016/j.algal.2021.102192] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
16
|
Pigment and Fatty Acid Production under Different Light Qualities in the Diatom Phaeodactylum tricornutum. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11062550] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Diatoms are microscopic biorefineries producing value-added molecules, including unique pigments, triglycerides (TAGs) and long-chain polyunsaturated fatty acids (LC-PUFAs), with potential implications in aquaculture feeding and the food or biofuel industries. These molecules are utilized in vivo for energy harvesting from sunlight to drive photosynthesis and as photosynthetic storage products, respectively. In the present paper, we evaluate the effect of narrow-band spectral illumination on carotenoid, LC-PUFAs and TAG contents in the model diatom Phaeodactylum tricornutum. Shorter wavelengths in the blue spectral range resulted in higher production of total fatty acids, namely saturated TAGs. Longer wavelengths in the red spectral range increased the cell’s content in Hexadecatrienoic acid (HTA) and Eicosapentaenoic acid (EPA). Red wavelengths induced higher production of photoprotective carotenoids, namely fucoxanthin. In combination, the results demonstrate how diatom value-added molecule production can be modulated by spectral light control during the growth. How diatoms could use such mechanisms to regulate efficient light absorption and cell buoyancy in the open ocean is discussed.
Collapse
|
17
|
Milito A, Orefice I, Smerilli A, Castellano I, Napolitano A, Brunet C, Palumbo A. Insights into the Light Response of Skeletonema marinoi: Involvement of Ovothiol. Mar Drugs 2020; 18:md18090477. [PMID: 32962291 PMCID: PMC7551349 DOI: 10.3390/md18090477] [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: 07/24/2020] [Revised: 09/14/2020] [Accepted: 09/17/2020] [Indexed: 12/19/2022] Open
Abstract
Diatoms are one of the most widespread groups of microalgae on Earth. They possess extraordinary metabolic capabilities, including a great ability to adapt to different light conditions. Recently, we have discovered that the diatom Skeletonema marinoi produces the natural antioxidant ovothiol B, until then identified only in clams. In this study, we investigated the light-dependent modulation of ovothiol biosynthesis in S. marinoi. Diatoms were exposed to different light conditions, ranging from prolonged darkness to low or high light, also differing in the velocity of intensity increase (sinusoidal versus square-wave distribution). The expression of the gene encoding the key ovothiol biosynthetic enzyme, ovoA, was upregulated by high sinusoidal light mimicking natural conditions. Under this situation higher levels of reactive oxygen species and nitric oxide as well as ovothiol and glutathione increase were detected. No ovoA modulation was observed under prolonged darkness nor low sinusoidal light. Unnatural conditions such as continuous square-wave light induced a very high oxidative stress leading to a drop in cell growth, without enhancing ovoA gene expression. Only one of the inducible forms of nitric oxide synthase, nos2, was upregulated by light with consequent production of NO under sinusoidal light and darkness conditions. Our data suggest that ovothiol biosynthesis is triggered by a combined light stress caused by natural distribution and increased photon flux density, with no influence from the daily light dose. These results open new perspectives for the biotechnological production of ovothiols, which are receiving a great interest for their biological activities in human model systems.
Collapse
Affiliation(s)
- Alfonsina Milito
- Department of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy;
- Department of Molecular Genetics, Centre for Research in Agricultural Genomics, Cerdanyola, 08193 Barcelona, Spain
- Correspondence: or (A.M.); (A.P.); Tel.: +39-081-5833 (ext. 293/276) (A.M.)
| | - Ida Orefice
- Department of Marine Biotechnology, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy; (I.O.); (A.S.); (C.B.)
| | - Arianna Smerilli
- Department of Marine Biotechnology, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy; (I.O.); (A.S.); (C.B.)
| | - Immacolata Castellano
- Department of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy;
| | - Alessandra Napolitano
- Department of Chemical Sciences, University of Naples “Federico II”, 80126 Naples, Italy;
| | - Christophe Brunet
- Department of Marine Biotechnology, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy; (I.O.); (A.S.); (C.B.)
| | - Anna Palumbo
- Department of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy;
- Correspondence: or (A.M.); (A.P.); Tel.: +39-081-5833 (ext. 293/276) (A.M.)
| |
Collapse
|
18
|
Milito A, Castellano I, Burn R, Seebeck FP, Brunet C, Palumbo A. First evidence of ovothiol biosynthesis in marine diatoms. Free Radic Biol Med 2020; 152:680-688. [PMID: 31935446 DOI: 10.1016/j.freeradbiomed.2020.01.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 01/10/2020] [Accepted: 01/10/2020] [Indexed: 12/26/2022]
Abstract
Ovothiols are histidine-derived thiols that are receiving a great interest for their biological activities in human model systems. Thanks to the position of the thiol group on the imidazole ring of histidine, these compounds exhibit unusual antioxidant properties. They have been revealing a very promising pharmacological potential due to their anti-proliferative and anti-inflammatory properties, as well as anti-fibrotic activities not always related to their antioxidant power. Ovothiols occur in three differentially methylated forms (A, B and C), isolated from ovary, eggs and biological fluids of many marine invertebrates, mollusks, microalgae, and pathogenic protozoa. These molecules are synthesized by two enzymes: the sulfoxide synthase OvoA and the sulfoxide lyase OvoB. OvoA catalyzes the insertion of the sulfur atom of cysteine on the imidazole ring of histidine, leading to the formation of a sulfoxide intermediate. This is then cleaved by OvoB, giving 5-thiohistidine, finally methylated on the imidazole ring thanks to the methyltransferase domain of OvoA. Recent studies have shown that OvoA homologs are encoded in a wide variety of genomes suggesting that ovothiol biosynthesis is much more widespread in nature than initially thought. Here we have investigated the OvoA occurrence in diatoms, one of the most abundant group of microalgae, dominating marine and freshwater environments. They are considered a very good model system for both biology/photophysiology studies and for biotechnological applications. We have performed comparative sequence and phylogenetic analyses of OvoA from diatoms, highlighting a high degree of conservation of the canonical domain architecture in the analyzed species, as well as a clear clustering of OvoA in the two different morphological groups, i.e. centric and pennate diatoms. The in silico analyses have also revealed that OvoA gene expression is modulated by growth conditions. More importantly, we have characterized the thiol fraction from cultures of the coastal centric diatom Skeletonema marinoi, providing the first evidence of ovothiol B biosynthesis in diatoms.
Collapse
Affiliation(s)
- Alfonsina Milito
- Dept. of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn, 80121, Naples, Italy
| | - Immacolata Castellano
- Dept. of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn, 80121, Naples, Italy
| | - Reto Burn
- Dept. of Chemistry, University of Basel, 4058, Basel, Switzerland
| | | | - Christophe Brunet
- Dept. of Marine Biotechnology, Stazione Zoologica Anton Dohrn, 80121, Naples, Italy
| | - Anna Palumbo
- Dept. of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn, 80121, Naples, Italy.
| |
Collapse
|
19
|
Red Light Variation an Effective Alternative to Regulate Biomass and Lipid Profiles in Phaeodactylum tricornutum. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10072531] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Marine water diatom Phaeodactylum tricornutum is a photosynthetic organism that is known to respond to the changing light environment and adapt to different temperatures to prevent photoinhibition and maintain its metabolic functions. The objective of the present study was to test whether light shift variations in different growth phases impact the growth and lipid metabolism of P. tricornutum. Thus, we investigated R exposure in different growth phases to find the most effective light shift condition. The results showed that substituting white light (W) by red light (R) under autotrophic conditions, a condition called red shift (RS), increased biomass and lipid content compared to levels found under continuous W or R exposure alone. We observed an increase by 2-fold biomass and 2.3-fold lipid content in RS as compared to W. No significant change was observed in the morphology of lipid droplets, but the fatty acid (FA) composition was altered. Specifically, polyunsaturated FAs were increased, whereas monounsaturated FAs decreased in P. tricornutum grown in RS compared to W control. Therefore, we propose that a light shift during the beginning of the stationary phase is a low-cost cultivation strategy to boost the total biomass and lipids in P. tricornutum.
Collapse
|
20
|
Abstract
Sea and marine biodiversity exploration represents a new frontier for the discovery of new natural products with human health benefits ("the exploitable biology", [...].
Collapse
|
21
|
McGee D, Archer L, Fleming GTA, Gillespie E, Touzet N. Influence of spectral intensity and quality of LED lighting on photoacclimation, carbon allocation and high-value pigments in microalgae. PHOTOSYNTHESIS RESEARCH 2020; 143:67-80. [PMID: 31705368 DOI: 10.1007/s11120-019-00686-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 10/21/2019] [Indexed: 05/09/2023]
Abstract
Tailoring spectral quality during microalgal cultivation can provide a means to increase productivity and enhance biomass composition for downstream biorefinery. Five microalgae strains from three distinct lineages were cultivated under varying spectral intensities and qualities to establish their effects on pigments and carbon allocation. Light intensity significantly impacted pigment yields and carbon allocation in all strains, while the effects of spectral quality were mostly species-specific. High light conditions induced chlorophyll photoacclimation and resulted in an increase in xanthophyll cycle pigments in three of the five strains. High-intensity blue LEDs increased zeaxanthin tenfold in Rhodella sp. APOT_15 relative to medium or low light conditions. White light however was optimal for phycobiliprotein content (11.2 mg mL-1) for all tested light intensities in this strain. The highest xanthophyll pigment yields for the Chlorophyceae were associated with medium-intensity blue and green lights for Brachiomonas submarina APSW_11 (5.6 mg g-1 lutein and 2.0 mg g-1 zeaxanthin) and Kirchneriella aperta DMGFW_21 (1.5 mg g-1 lutein and 1 mg g-1 zeaxanthin), respectively. The highest fucoxanthin content in both Heterokontophyceae strains (2.0 mg g-1) was associated with medium and high white light for Stauroneis sp. LACW_24 and Phaeothamnion sp. LACW_34, respectively. This research provides insights into the application of LEDs to influence microalgal physiology, highlighting the roles of low light on lipid metabolism in Rhodella sp. APOT_15, of blue and green lights for carotenogenesis in Chlorophyceae and red light-induced photoacclimation in diatoms.
Collapse
Affiliation(s)
- Dónal McGee
- Department of Environmental Science, School of Science, CERIS, Centre for Environmental Research, Innovation and Sustainability, Institute of Technology Sligo, Sligo, Ireland.
| | - Lorraine Archer
- Department of Environmental Science, School of Science, CERIS, Centre for Environmental Research, Innovation and Sustainability, Institute of Technology Sligo, Sligo, Ireland
| | - Gerard T A Fleming
- Microbiology Department, School of Natural Sciences, National University of Ireland, Galway, Ireland
| | - Eoin Gillespie
- Department of Environmental Science, School of Science, CERIS, Centre for Environmental Research, Innovation and Sustainability, Institute of Technology Sligo, Sligo, Ireland
| | - Nicolas Touzet
- Department of Environmental Science, School of Science, CERIS, Centre for Environmental Research, Innovation and Sustainability, Institute of Technology Sligo, Sligo, Ireland
| |
Collapse
|
22
|
Smerilli A, Balzano S, Maselli M, Blasio M, Orefice I, Galasso C, Sansone C, Brunet C. Antioxidant and Photoprotection Networking in the Coastal Diatom Skeletonema marinoi. Antioxidants (Basel) 2019; 8:E154. [PMID: 31159429 PMCID: PMC6617368 DOI: 10.3390/antiox8060154] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 05/23/2019] [Accepted: 05/29/2019] [Indexed: 11/17/2022] Open
Abstract
Little is known on the antioxidant activity modulation in microalgae, even less in diatoms. Antioxidant molecule concentrations and their modulation in microalgae has received little attention and the interconnection between light, photosynthesis, photoprotection, and antioxidant network in microalgae is still unclear. To fill this gap, we selected light as external forcing to drive physiological regulation and acclimation in the costal diatom Skeletonema marinoi. We investigated the role of light regime on the concentration of ascorbic acid, phenolic compounds and among them flavonoids and their connection with photoprotective mechanisms. We compared three high light conditions, differing in either light intensity or wave distribution, with two low light conditions, differing in photoperiod, and a prolonged darkness. The change in light distribution, from sinusoidal to square wave distribution was also investigated. Results revealed a strong link between photoprotection, mainly relied on xanthophyll cycle operation, and the antioxidant molecules and activity modulation. This study paves the way for further investigation on the antioxidant capacity of diatoms, which resulted to be strongly forced by light conditions, also in the view of their potential utilization in nutraceuticals or new functional cosmetic products.
Collapse
Affiliation(s)
- Arianna Smerilli
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie marine, Villa Comunale, 80121 Napoli, Italy.
| | - Sergio Balzano
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie marine, Villa Comunale, 80121 Napoli, Italy.
| | - Maira Maselli
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie marine, Villa Comunale, 80121 Napoli, Italy.
- Department of Biology, University of Copenhagen, Strandpromenaden 5, 3000 Helsingør, Denmark.
| | - Martina Blasio
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie marine, Villa Comunale, 80121 Napoli, Italy.
| | - Ida Orefice
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie marine, Villa Comunale, 80121 Napoli, Italy.
| | - Christian Galasso
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie marine, Villa Comunale, 80121 Napoli, Italy.
| | - Clementina Sansone
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie marine, Villa Comunale, 80121 Napoli, Italy.
| | - Christophe Brunet
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie marine, Villa Comunale, 80121 Napoli, Italy.
| |
Collapse
|
23
|
Su Y. The effect of different light regimes on pigments in Coscinodiscus granii. PHOTOSYNTHESIS RESEARCH 2019; 140:301-310. [PMID: 30478709 DOI: 10.1007/s11120-018-0608-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Accepted: 11/20/2018] [Indexed: 06/09/2023]
Abstract
The influence of six different light regimes throughout the photosynthetically active radiation range (from 400 to 700 nm, including blue, green, yellow, red-orange, red, and white) at two intensities (100 and 300 µmol photons m-2 s-1) on pigmentation was assessed for the centric marine diatom Coscinodiscus granii for the first time. Chlorophyll (Chl) a and fucoxanthin were the dominating pigments in all treatments. The cellular concentrations of light harvesting pigment (Chl a, Chl c1 + c2, and fucoxanthin) were higher at 100 than at 300 µmol photons m-2 s-1 at all wavelengths, with the largest increases at red and blue light. The normalized concentrations of photoprotective pigments (violaxanthin, zeaxanthin, diadinoxanthin, and diatoxanthin) were higher at high light intensity than in cells grown at low light intensity. An increase in β-carotene in low light conditions is expected as the increased Chl a was related to increased photosynthetic subunits which require β-carotene (bound to photosystem core). At 300 µmol photons m-2 s-1, yellow light resulted in significantly lower concentration of most of the detected pigments than the other wavelengths. At 100 µmol photons m-2 s-1, W and B light led to statistically lower and higher concentration of most of the detected pigments than the other wavelengths, respectively.
Collapse
Affiliation(s)
- Yanyan Su
- Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg, Denmark.
- Carlsberg Research Laboratory, Bjerregaardsvej 5, 2500, Valby, Denmark.
| |
Collapse
|
24
|
Galasso C, Gentile A, Orefice I, Ianora A, Bruno A, Noonan DM, Sansone C, Albini A, Brunet C. Microalgal Derivatives as Potential Nutraceutical and Food Supplements for Human Health: A Focus on Cancer Prevention and Interception. Nutrients 2019; 11:E1226. [PMID: 31146462 PMCID: PMC6627306 DOI: 10.3390/nu11061226] [Citation(s) in RCA: 101] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 05/17/2019] [Accepted: 05/21/2019] [Indexed: 12/13/2022] Open
Abstract
Epidemiological studies are providing strong evidence on beneficial health effects from dietary measures, leading scientists to actively investigate which foods and which specific agents in the diet can prevent diseases. Public health officers and medical experts should collaborate toward the design of disease prevention diets for nutritional intervention. Functional foods are emerging as an instrument for dietary intervention in disease prevention. Functional food products are technologically developed ingredients with specific health benefits. Among promising sources of functional foods and chemopreventive diets of interest, microalgae are gaining worldwide attention, based on their richness in high-value products, including carotenoids, proteins, vitamins, essential amino acids, omega-rich oils and, in general, anti-inflammatory and antioxidant compounds. Beneficial effects of microalgae on human health and/or wellness could in the future be useful in preventing or delaying the onset of cancer and cardiovascular diseases. During the past decades, microalgal biomass was predominately used in the health food market, with more than 75% of the annual microalgal biomass production being employed for the manufacture of powders, tablets, capsules or pastilles. In this review, we report and discuss the present and future role of microalgae as marine sources of functional foods/beverages for human wellbeing, focusing on perspectives in chemoprevention. We dissected this topic by analyzing the different classes of microalgal compounds with health outputs (based on their potential chemoprevention activities), the biodiversity of microalgal species and how to improve their cultivation, exploring the perspective of sustainable food from the sea.
Collapse
Affiliation(s)
- Christian Galasso
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy.
| | - Antonio Gentile
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy.
| | - Ida Orefice
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy.
| | - Adrianna Ianora
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy.
| | - Antonino Bruno
- Laboratory of Vascular Biology and Angiogenesis, IRCCS MultiMedica, 20138 Milan, Italy.
| | - Douglas M Noonan
- Laboratory of Vascular Biology and Angiogenesis, IRCCS MultiMedica, 20138 Milan, Italy.
- Department of Biotechnology and Life Sciences, University of Insubria, 211000 Varese, Italy.
| | | | - Adriana Albini
- Laboratory of Vascular Biology and Angiogenesis, IRCCS MultiMedica, 20138 Milan, Italy.
- School of Medicine and Surgery, University of Milano-Bicocca, 20900 Monza, Italy.
| | - Christophe Brunet
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy.
| |
Collapse
|
25
|
Orefice I, Musella M, Smerilli A, Sansone C, Chandrasekaran R, Corato F, Brunet C. Role of nutrient concentrations and water movement on diatom's productivity in culture. Sci Rep 2019; 9:1479. [PMID: 30728371 PMCID: PMC6365584 DOI: 10.1038/s41598-018-37611-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Accepted: 12/10/2018] [Indexed: 02/06/2023] Open
Abstract
Microalgal growth maximization is becoming a duty for enhancing the biotechnological fate of these photosynthetic microorganisms. This study, based on an extensive set of data, aims to revisit diatom’s cultivation in laboratory with the objective to increase growth rate and biomass production. We investigated the growth ability and resource requirements of the coastal diatom Skeletonema marinoi Sarno & Zingone grown in laboratory in the conventional f/2 medium with aeration and in two modified conditions: (i) the same medium with water movement inside and (ii) an enriched medium with the same water movement. Results revealed that, by doubling the concentration of phosphate, silicate, microelements and vitamins, growth rate was successfully enhanced, preventing phosphate or silicate limitation in the f/2 culture medium. Yet, irrespective of the media (f/2 or enriched one), water movement induced an increase of growth efficiency compared to aeration, affecting nutrients’ requirement and consumption by diatoms. This study is an important step for enhancing diatom biomass production, reducing its cost, as required in the blue biotechnology context.
Collapse
Affiliation(s)
- Ida Orefice
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie Marine, Villa comunale, 80121, Napoli, Italy
| | - Margherita Musella
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie Marine, Villa comunale, 80121, Napoli, Italy
| | - Arianna Smerilli
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie Marine, Villa comunale, 80121, Napoli, Italy
| | - Clementina Sansone
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie Marine, Villa comunale, 80121, Napoli, Italy
| | - Raghu Chandrasekaran
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie Marine, Villa comunale, 80121, Napoli, Italy.,CAS in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai, 608502, Tamil Nadu, India
| | - Federico Corato
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie Marine, Villa comunale, 80121, Napoli, Italy
| | - Christophe Brunet
- Stazione Zoologica Anton Dohrn, Istituto Nazionale di Biologia, Ecologia e Biotecnologie Marine, Villa comunale, 80121, Napoli, Italy.
| |
Collapse
|
26
|
Ambati RR, Gogisetty D, Aswathanarayana RG, Ravi S, Bikkina PN, Bo L, Yuepeng S. Industrial potential of carotenoid pigments from microalgae: Current trends and future prospects. Crit Rev Food Sci Nutr 2018; 59:1880-1902. [PMID: 29370540 DOI: 10.1080/10408398.2018.1432561] [Citation(s) in RCA: 114] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Microalgae are rich source of various bioactive molecules such as carotenoids, lipids, fatty acids, hydrocarbons, proteins, carbohydrates, amino acids, etc. and in recent Years carotenoids from algae gained commercial recognition in the global market for food and cosmeceutical applications. However, the production of carotenoids from algae is not yet fully cost effective to compete with synthetic ones. In this context the present review examines the technologies/methods in relation to mass production of algae, cell harvesting for extraction of carotenoids, optimizing extraction methods etc. Research studies from different microalgal species such as Spirulina platensis, Haematococcus pluvialis, Dunaliella salina, Chlorella sps., Nannochloropsis sps., Scenedesmus sps., Chlorococcum sps., Botryococcus braunii and Diatoms in relation to carotenoid content, chemical structure, extraction and processing of carotenoids are discussed. Further these carotenoid pigments, are useful in various health applications and their use in food, feed, nutraceutical, pharmaceutical and cosmeceutical industries was briefly touched upon. The commercial value of algal carotenoids has also been discussed in this review. Possible recommendations for future research studies are proposed.
Collapse
Affiliation(s)
- Ranga Rao Ambati
- a Food Science and Technology Programme, Beijing Normal University-Hong Kong Baptist University United International College , Tangjiawan, Zhuhai , Guangdong , China.,b Estuarine Fisheries Research Institute , Doumen, Zhuhai , Guangdong , China.,c Department of Biotechnology , Vignan's Foundation for Science, Technology and Research (Deemed to be University) , Vadlamudi, Guntur , Andhra Pradesh , India
| | - Deepika Gogisetty
- d Department of Chemistry , Sri Chaitanya Junior College , Tenali, Guntur , Andhra Pradesh , India
| | | | - Sarada Ravi
- f Plant Cell Biotechnology Department , Central Food Technological Research Institute, (Constituent Laboratory of Council of Scientific & Industrial Research) , Mysore , Karnataka , India
| | | | - Lei Bo
- a Food Science and Technology Programme, Beijing Normal University-Hong Kong Baptist University United International College , Tangjiawan, Zhuhai , Guangdong , China
| | - Su Yuepeng
- b Estuarine Fisheries Research Institute , Doumen, Zhuhai , Guangdong , China
| |
Collapse
|
27
|
Lawrenz E, Richardson TL. Differential effects of changes in spectral irradiance on photoacclimation, primary productivity and growth in Rhodomonas salina (Cryptophyceae) and Skeletonema costatum (Bacillariophyceae) in simulated blackwater environments. JOURNAL OF PHYCOLOGY 2017; 53:1241-1254. [PMID: 28815594 DOI: 10.1111/jpy.12578] [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: 12/20/2016] [Accepted: 07/22/2017] [Indexed: 06/07/2023]
Abstract
The underwater light field in blackwater environments is strongly skewed toward the red end of the electromagnetic spectrum due to blue light absorption by colored dissolved organic matter (CDOM). Exposure of phytoplankton to full spectrum irradiance occurs only when cells are mixed up to the surface. We studied the potential effects of mixing-induced changes in spectral irradiance on photoacclimation, primary productivity and growth in cultures of the cryptophyte Rhodomonas salina and the diatom Skeletonema costatum. We found that these taxa have very different photoacclimation strategies. While S. costatum showed classical complementary chromatic adaption, R. salina showed inverse chromatic adaptation, a strategy previously unknown in the cryptophytes. Transfer of R. salina to periodic full spectrum light (PFSL) significantly enhanced growth rate (μ) by 1.8 times and primary productivity from 0.88 to 1.35 mg C · (mg Chl-1 ) · h-1 . Overall, R. salina was less dependent on PFSL than was S. costatum, showing higher μ and net primary productivity rates. In the high-CDOM simulation, carbon metabolism of the diatom was impaired, leading to suppression of growth rate, short-term 14 C uptake and net primary production. Upon transfer to PFSL, μ of the diatom increased by up to 3-fold and carbon fixation from 2.4 to 6.0 mg C · (mg Chl-1 ) · h-1 . Thus, a lack of PFSL differentially impairs primarily CO2 -fixation and/or carbon metabolism, which, in turn, may determine which phytoplankton dominate the community in blackwater habitats and may therefore influence the structure and function of these ecosystems.
Collapse
Affiliation(s)
- Evelyn Lawrenz
- Marine Science Program, University of South Carolina, Columbia, South Carolina, 29208, USA
| | - Tammi L Richardson
- Department of Biological Sciences, School of the Earth, Ocean and Environment, University of South Carolina, Columbia, South Carolina, 29208, USA
| |
Collapse
|
28
|
Cirino P, Brunet C, Ciaravolo M, Galasso C, Musco L, Vega Fernández T, Sansone C, Toscano A. The Sea Urchin Arbacia lixula: A Novel Natural Source of Astaxanthin. Mar Drugs 2017; 15:E187. [PMID: 28635649 PMCID: PMC5484137 DOI: 10.3390/md15060187] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Revised: 06/08/2017] [Accepted: 06/16/2017] [Indexed: 11/16/2022] Open
Abstract
Several echinoderms, including sea urchins, are valuable sources of bioactive compounds but their nutraceutical potential is largely unexplored. In fact, the gonads of some sea urchin species contain antioxidants including carotenoids and polyhydroxylated naphthoquinones (PHNQ's), such as echinochrome A. Astaxanthin is known to have particular bioactivity for the prevention of neurodegenerative diseases. This carotenoid is produced by microalgae, while several marine invertebrates can bioaccumulate or synthetize it from metabolic precursors. We determined the carotenoid content and analyzed the bioactivity potential of non-harvested Atlantic-Mediterranean sea urchin Arbacia lixula. The comparison of methanol crude extracts obtained from eggs of farmed and wild specimens revealed a higher bioactivity in farmed individuals fed with a customized fodder. HPLC-analysis revealed a high concentration of astaxanthin (27.0 μg/mg), which was the only pigment observed. This study highlights the potential of farmed A. lixula as a new source of the active stereoisomer of astaxanthin.
Collapse
Affiliation(s)
- Paola Cirino
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy.
| | - Christophe Brunet
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy.
| | - Martina Ciaravolo
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy.
| | - Christian Galasso
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy.
- Department of Veterinary Medicine and Animal Production, University of Naples "Federico II", Via Federico Delpino 1, 80137 Naples, Italy.
| | - Luigi Musco
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy.
| | - Tomás Vega Fernández
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy.
- National Research Council (CNR)-Institute of Coastal Marine Environment (IAMC), Calata Porta di Massa, 80133 Naples, Italy.
| | | | - Alfonso Toscano
- Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy.
| |
Collapse
|
29
|
Jaubert M, Bouly JP, Ribera d'Alcalà M, Falciatore A. Light sensing and responses in marine microalgae. CURRENT OPINION IN PLANT BIOLOGY 2017; 37:70-77. [PMID: 28456112 DOI: 10.1016/j.pbi.2017.03.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Accepted: 03/13/2017] [Indexed: 06/07/2023]
Abstract
Marine eukaryotic phytoplankton are major contributors to global primary production. To adapt and thrive in the oceans, phytoplankton relies on a variety of light-regulated responses and light-acclimation capacities probably driven by sophisticated photoregulatory mechanisms. A plethora of photoreceptor-like sequences from marine microalgae have been identified in omics approaches. Initial studies have revealed that some algal photoreceptors are similar to those known in plants. In addition, new variants with different spectral tuning and algal-specific light sensors have also been found, changing current views and perspectives on how photoreceptor structure and function have diversified in phototrophs experiencing different environmental conditions.
Collapse
Affiliation(s)
- Marianne Jaubert
- Sorbonne Universités, UPMC, Institut de Biologie Paris-Seine, CNRS, Laboratoire de Biologie Computationnelle et Quantitative, 4, Place de Jussieu, 75005 Paris, France
| | - Jean-Pierre Bouly
- Sorbonne Universités, UPMC, Institut de Biologie Paris-Seine, CNRS, Laboratoire de Biologie Computationnelle et Quantitative, 4, Place de Jussieu, 75005 Paris, France
| | - Maurizio Ribera d'Alcalà
- Stazione Zoologica Anton Dohrn, Laboratory of Ecology and Evolution of Plankton, Villa Comunale, 80121 Naples, Italy.
| | - Angela Falciatore
- Sorbonne Universités, UPMC, Institut de Biologie Paris-Seine, CNRS, Laboratoire de Biologie Computationnelle et Quantitative, 4, Place de Jussieu, 75005 Paris, France.
| |
Collapse
|
30
|
Lepetit B, Gélin G, Lepetit M, Sturm S, Vugrinec S, Rogato A, Kroth PG, Falciatore A, Lavaud J. The diatom Phaeodactylum tricornutum adjusts nonphotochemical fluorescence quenching capacity in response to dynamic light via fine-tuned Lhcx and xanthophyll cycle pigment synthesis. THE NEW PHYTOLOGIST 2017; 214:205-218. [PMID: 27870063 DOI: 10.1111/nph.14337] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 10/17/2016] [Indexed: 05/24/2023]
Abstract
Diatoms contain a highly flexible capacity to dissipate excessively absorbed light by nonphotochemical fluorescence quenching (NPQ) based on the light-induced conversion of diadinoxanthin (Dd) into diatoxanthin (Dt) and the presence of Lhcx proteins. Their NPQ fine regulation on the molecular level upon a shift to dynamic light conditions is unknown. We investigated the regulation of Dd + Dt amount, Lhcx gene and protein synthesis and NPQ capacity in the diatom Phaeodactylum tricornutum after a change from continuous low light to 3 d of sine (SL) or fluctuating (FL) light conditions. Four P. tricornutum strains with different NPQ capacities due to different expression of Lhcx1 were included. All strains responded to dynamic light comparably, independently of initial NPQ capacity. During SL, NPQ capacity was strongly enhanced due to a gradual increase of Lhcx2 and Dd + Dt amount. During FL, cells enhanced their NPQ capacity on the first day due to increased Dd + Dt, Lhcx2 and Lhcx3; already by the second day light acclimation was accomplished. While quenching efficiency of Dt was strongly lowered during SL conditions, it remained high throughout the whole FL exposure. Our results highlight a more balanced and cost-effective photoacclimation strategy of P. tricornutum under FL than under SL conditions.
Collapse
Affiliation(s)
- Bernard Lepetit
- UMR7266 'LIENSs', CNRS Université de La Rochelle, Institut du Littoral et de l'Environnement, 2 rue Olympe de Gouges, La Rochelle, 17000, France
- Zukunftskolleg, Pflanzliche Ökophysiologie, Universität Konstanz, Konstanz, 78457, Germany
| | - Gautier Gélin
- UMR7266 'LIENSs', CNRS Université de La Rochelle, Institut du Littoral et de l'Environnement, 2 rue Olympe de Gouges, La Rochelle, 17000, France
| | - Mariana Lepetit
- UMR7266 'LIENSs', CNRS Université de La Rochelle, Institut du Littoral et de l'Environnement, 2 rue Olympe de Gouges, La Rochelle, 17000, France
| | - Sabine Sturm
- Zukunftskolleg, Pflanzliche Ökophysiologie, Universität Konstanz, Konstanz, 78457, Germany
| | - Sascha Vugrinec
- Zukunftskolleg, Pflanzliche Ökophysiologie, Universität Konstanz, Konstanz, 78457, Germany
| | - Alessandra Rogato
- Institute of Biosciences and BioResources, CNR, Via P. Castellino 111, Naples, 80131, Italy
- Stazione Zoologica Anton Dohrn Villa Comunale, Naples, 80121, Italy
| | - Peter G Kroth
- Zukunftskolleg, Pflanzliche Ökophysiologie, Universität Konstanz, Konstanz, 78457, Germany
| | - Angela Falciatore
- Laboratoire de Biologie Computationnelle et Quantitative, Sorbonne Universités, UPMC, Institut de Biologie Paris-Seine, CNRS, 15 rue de l'Ecole de Médecine, Paris, 75006, France
| | - Johann Lavaud
- UMR7266 'LIENSs', CNRS Université de La Rochelle, Institut du Littoral et de l'Environnement, 2 rue Olympe de Gouges, La Rochelle, 17000, France
- Département de Biologie, UMI 3376 TAKUVIK, CNRS/Université Laval, Pavillon Alexandre-Vachon, 1045 avenue de la Médecine, Québec, QC, G1V 0A6, Canada
| |
Collapse
|
31
|
Sansone C, Galasso C, Orefice I, Nuzzo G, Luongo E, Cutignano A, Romano G, Brunet C, Fontana A, Esposito F, Ianora A. The green microalga Tetraselmis suecica reduces oxidative stress and induces repairing mechanisms in human cells. Sci Rep 2017; 7:41215. [PMID: 28117410 PMCID: PMC5259714 DOI: 10.1038/srep41215] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Accepted: 11/04/2016] [Indexed: 01/31/2023] Open
Abstract
Green microalgae contain many active pigments such as carotenoids having antioxidant and protective activity on human cells. Here we investigate the biological activity of an ethanol/water extract of the marine green microalga Tetraselmis suecica containing high levels of carotenoids such as the xanthophylls lutein, violaxanthin, neoxanthin, antheraxanthin and loroxanthin esters. This extract has a strong antioxidant and repairing activity in the human lung cancer cell line (A549) as shown by the increased expression of dehydrocholesterol reductase-24 (DHCR24) and prostaglandin reductase 1 (PTGR1) genes and proteins. The extract also reduces prostaglandin E2 (PGE2) levels in cells damaged by H2O2 and has tissue repairing effects on reconstructed human epidermal tissue cells (EpiDermTM) indicating a potential cosmeceutical activity of this microalgal species.
Collapse
Affiliation(s)
- Clementina Sansone
- Integrative Marine Ecology Department, Stazione Zoologica Anton Dohrn, Villa Comunale, Naples 80121, Italy
| | - Christian Galasso
- Integrative Marine Ecology Department, Stazione Zoologica Anton Dohrn, Villa Comunale, Naples 80121, Italy.,University of Naples "Federico II", Department of Veterinary Medicine and Animal Production, Via Federico Delpino 1, Naples 80137, Italy
| | - Ida Orefice
- Integrative Marine Ecology Department, Stazione Zoologica Anton Dohrn, Villa Comunale, Naples 80121, Italy
| | - Genoveffa Nuzzo
- Bio-Organic Chemistry Unit, Institute of Biomolecular Chemistry-CNR, Via Campi Flegrei 34, Pozzuoli, Naples 80078, Italy
| | - Elvira Luongo
- Bio-Organic Chemistry Unit, Institute of Biomolecular Chemistry-CNR, Via Campi Flegrei 34, Pozzuoli, Naples 80078, Italy
| | - Adele Cutignano
- Bio-Organic Chemistry Unit, Institute of Biomolecular Chemistry-CNR, Via Campi Flegrei 34, Pozzuoli, Naples 80078, Italy
| | - Giovanna Romano
- Integrative Marine Ecology Department, Stazione Zoologica Anton Dohrn, Villa Comunale, Naples 80121, Italy
| | - Christophe Brunet
- Integrative Marine Ecology Department, Stazione Zoologica Anton Dohrn, Villa Comunale, Naples 80121, Italy
| | - Angelo Fontana
- Bio-Organic Chemistry Unit, Institute of Biomolecular Chemistry-CNR, Via Campi Flegrei 34, Pozzuoli, Naples 80078, Italy
| | - Francesco Esposito
- Integrative Marine Ecology Department, Stazione Zoologica Anton Dohrn, Villa Comunale, Naples 80121, Italy
| | - Adrianna Ianora
- Integrative Marine Ecology Department, Stazione Zoologica Anton Dohrn, Villa Comunale, Naples 80121, Italy
| |
Collapse
|
32
|
Smerilli A, Orefice I, Corato F, Gavalás Olea A, Ruban AV, Brunet C. Photoprotective and antioxidant responses to light spectrum and intensity variations in the coastal diatomSkeletonema marinoi. Environ Microbiol 2016; 19:611-627. [DOI: 10.1111/1462-2920.13545] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Revised: 09/09/2016] [Accepted: 09/22/2016] [Indexed: 01/06/2023]
Affiliation(s)
- Arianna Smerilli
- Stazione Zoologica Anton Dohrn; Villa Comunale Napoli 80121 Italy
| | - Ida Orefice
- Stazione Zoologica Anton Dohrn; Villa Comunale Napoli 80121 Italy
| | - Federico Corato
- Stazione Zoologica Anton Dohrn; Villa Comunale Napoli 80121 Italy
| | - Antonio Gavalás Olea
- Instituto de Investigaciones Marinas CSIC; Av. Eduardo Cabello 6 Vigo 36208 Spain
| | - Alexander V. Ruban
- School of Biological and Chemical Sciences; Queen Mary University of London; Mile End Road London E1 4NS United Kingdom
| | | |
Collapse
|
33
|
Vadiveloo A, Moheimani N, Kosterink NR, Cosgrove J, Parlevliet D, Gonzalez-Garcia C, Lubián LM. Photosynthetic performance of two Nannochloropsis spp. under different filtered light spectra. ALGAL RES 2016. [DOI: 10.1016/j.algal.2016.08.014] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
|
34
|
Orefice I, Chandrasekaran R, Smerilli A, Corato F, Caruso T, Casillo A, Corsaro MM, Piaz FD, Ruban AV, Brunet C. Light-induced changes in the photosynthetic physiology and biochemistry in the diatom Skeletonema marinoi. ALGAL RES 2016. [DOI: 10.1016/j.algal.2016.04.013] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
35
|
Garrido JL, Brunet C, Rodríguez F. Pigment variations in Emiliania huxleyi (CCMP370) as a response to changes in light intensity or quality. Environ Microbiol 2016; 18:4412-4425. [PMID: 27198623 DOI: 10.1111/1462-2920.13373] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Many studies on photoacclimation examine the pigment responses to changes in light intensity, but variations in light climate in the aquatic environment are also related to changes in spectral composition. We have employed a high-performance liquid chromatography method with improved resolution towards chlorophyll c and fucoxanthin-related xanthophylls to examine the pigment composition of Emiliania huxleyi CCMP 370 under different light intensities and spectral qualities. To maintain its photosynthetic performance, E. huxleyi CCMP370 promotes drastic pigment changes that can be either the interconversion of pigments in pools with the same basic chromophoric structure (Fucoxanthin type or chlorophyll c type), or the ex novo synthesis (Diatoxanthin). These changes are linked either to variations in light quality (Fucoxanthin related xanthophylls) or in light intensity (chlorophyll c3 /Monovinyl chlorophyll c3 , Diadinoxanthin/Diatoxanthin, β,ɛ-carotene/ β,β-carotene). Fucoxanthin and 19'-hexanoyloxyfucoxanthin proportions were highly dependent on spectral conditions. Whereas Fucoxanthin dominated in green and red light, 19'-hexanoyloxyfucoxanthin prevailed under blue spectral conditions. Our results suggest that the huge pigment diversity enhanced the photoacclimative capacities of E. huxleyi to efficiently perform under changing light environments. The ubiquity and success in the global ocean as well as the capacity of E. huxleyi to form large surface blooms might be associated to the plasticity described here.
Collapse
Affiliation(s)
- José L Garrido
- Instituto de Investigaciones Marinas (CSIC), Vigo, Spain
| | | | | |
Collapse
|
36
|
Schulze PS, Pereira HG, Santos TF, Schueler L, Guerra R, Barreira LA, Perales JA, Varela JC. Effect of light quality supplied by light emitting diodes (LEDs) on growth and biochemical profiles of Nannochloropsis oculata and Tetraselmis chuii. ALGAL RES 2016. [DOI: 10.1016/j.algal.2016.03.034] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
37
|
Hewes CD. The color of mass culture: spectral characteristics of a shallow water column through shade-limited algal growth dynamics(1). JOURNAL OF PHYCOLOGY 2016; 52:252-259. [PMID: 27037590 DOI: 10.1111/jpy.12393] [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: 10/13/2015] [Accepted: 01/15/2016] [Indexed: 06/05/2023]
Abstract
It is envisioned that mass algal cultivation for commercial biofuels production will entail the use of large raceway pond systems, which typically have shade-limited photosynthetic growth within depths of 20-30 cm. The attenuation of light and spectral qualities of red, green, and blue wavelengths in a 20-cm water column as a function of Chl-a concentration during exponential and linear phases of growth dynamics for the marine diatom Thalassiosira pseudonana was examined under laboratory conditions. While photosynthetically available radiation (PAR) was in excess throughout the water column during the phase of exponential growth, PAR became rate limiting differently for red, green, and blue wavelengths during the phase of linear growth. The transition from exponential to linear growth occurred at 1-2 mg Chl-a · L-1, whereby a scalar ~5 μmol photons · m-2 · s-1 at 20-cm depth was found to occur as would be anticipated having the compensation point for where rates of photosynthesis and respiration are equal. During the phase of linear growth, red wavelengths became increasingly dominant at depth as Chl-a concentrations increased, being contrary to the optical conditions for those natural bodies of water that forced the evolution of phytoplankton photosynthesis. It is hypothesized this dramatic difference in water column optics between natural and synthetic environments could influence a variety of biological reactions, importantly non-photochemical quenching capacities, which could negatively impact crop yield.
Collapse
Affiliation(s)
- Christopher D Hewes
- Marine Biology Research Division, Scripps Institution of Oceanography, University of California San Diego, La Jolla, California, 92093-0202, USA
| |
Collapse
|
38
|
Chandrasekaran R, Barra L, Carillo S, Caruso T, Corsaro MM, Dal Piaz F, Graziani G, Corato F, Pepe D, Manfredonia A, Orefice I, Ruban AV, Brunet C. Light modulation of biomass and macromolecular composition of the diatom Skeletonema marinoi. J Biotechnol 2015; 192 Pt A:114-22. [PMID: 25456059 DOI: 10.1016/j.jbiotec.2014.10.016] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Revised: 10/08/2014] [Accepted: 10/13/2014] [Indexed: 10/24/2022]
Abstract
The biochemical profile and growth of the coastal diatom Skeletonema marinoi was investigated under four different daily blue light doses (sinusoidal light peaking at 88, 130, 250 and 450 μmol photons m(−2) s(−1), respectively). Ability of cells to regulate the light energy input caused alterations in growth and different biosynthetic pathways. The light saturation index for photosynthesis (E(k)), which governs the photoacclimative processes, ranged between 250 and 300 μmol photons m(−2) s(−1). Cells that were adapted to low light (<E(k)) enhanced their carotenoid, lipid and protein contents and lowered carbohydrate content, and vice versa under high light (≥E(k)). Variations in fatty acid, pigment and amino acid compositions were a result of light adaptation. Our data show that light is a potent factor for manipulating biomass synthesis in microalgae, such as diatoms for microalgal biotechnology.
Collapse
|
39
|
Kuczynska P, Jemiola-Rzeminska M, Strzalka K. Photosynthetic Pigments in Diatoms. Mar Drugs 2015; 13:5847-81. [PMID: 26389924 PMCID: PMC4584358 DOI: 10.3390/md13095847] [Citation(s) in RCA: 167] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Revised: 09/01/2015] [Accepted: 09/07/2015] [Indexed: 12/16/2022] Open
Abstract
Photosynthetic pigments are bioactive compounds of great importance for the food, cosmetic, and pharmaceutical industries. They are not only responsible for capturing solar energy to carry out photosynthesis, but also play a role in photoprotective processes and display antioxidant activity, all of which contribute to effective biomass and oxygen production. Diatoms are organisms of a distinct pigment composition, substantially different from that present in plants. Apart from light-harvesting pigments such as chlorophyll a, chlorophyll c, and fucoxanthin, there is a group of photoprotective carotenoids which includes β-carotene and the xanthophylls, diatoxanthin, diadinoxanthin, violaxanthin, antheraxanthin, and zeaxanthin, which are engaged in the xanthophyll cycle. Additionally, some intermediate products of biosynthetic pathways have been identified in diatoms as well as unusual pigments, e.g., marennine. Marine algae have become widely recognized as a source of unique bioactive compounds for potential industrial, pharmaceutical, and medical applications. In this review, we summarize current knowledge on diatom photosynthetic pigments complemented by some new insights regarding their physico-chemical properties, biological role, and biosynthetic pathways, as well as the regulation of pigment level in the cell, methods of purification, and significance in industries.
Collapse
Affiliation(s)
- Paulina Kuczynska
- Faculty of Biochemistry, Biophysics and Biotechnology, Department of Plant Physiology and Biochemistry, Jagiellonian University, Gronostajowa 7, Krakow 30-387, Poland.
| | - Malgorzata Jemiola-Rzeminska
- Faculty of Biochemistry, Biophysics and Biotechnology, Department of Plant Physiology and Biochemistry, Jagiellonian University, Gronostajowa 7, Krakow 30-387, Poland.
- Małopolska Centre of Biotechnology, Gronostajowa 7A, Krakow 30-387, Poland.
| | - Kazimierz Strzalka
- Faculty of Biochemistry, Biophysics and Biotechnology, Department of Plant Physiology and Biochemistry, Jagiellonian University, Gronostajowa 7, Krakow 30-387, Poland.
- Małopolska Centre of Biotechnology, Gronostajowa 7A, Krakow 30-387, Poland.
| |
Collapse
|
40
|
Giovagnetti V, Flori S, Tramontano F, Lavaud J, Brunet C. The velocity of light intensity increase modulates the photoprotective response in coastal diatoms. PLoS One 2014; 9:e103782. [PMID: 25083713 PMCID: PMC4118909 DOI: 10.1371/journal.pone.0103782] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Accepted: 07/07/2014] [Indexed: 12/21/2022] Open
Abstract
In aquatic ecosystems, the superimposition of mixing events to the light diel cycle exposes phytoplankton to changes in the velocity of light intensity increase, from diurnal variations to faster mixing-related ones. This is particularly true in coastal waters, where diatoms are dominant. This study aims to investigate if coastal diatoms differently activate the photoprotective responses, xanthophyll cycle (XC) and non-photochemical fluorescence quenching (NPQ), to cope with predictable light diel cycle and unpredictable mixing-related light variations. We compared the effect of two fast light intensity increases (simulating mixing events) with that of a slower increase (corresponding to the light diel cycle) on the modulation of XC and NPQ in the planktonic coastal diatom Pseudo-nitzschia multistriata. During each light treatment, the photon flux density (PFD) progressively increased from darkness to five peaks, ranging from 100 to 650 µmol photons m−2 s−1. Our results show that the diel cycle-related PFD increase strongly activates XC through the enhancement of the carotenoid biosynthesis and induces a moderate and gradual NPQ formation over the light gradient. In contrast, during mixing-related PFD increases, XC is less activated, while higher NPQ rapidly develops at moderate PFD. We observe that together with the light intensity and its increase velocity, the saturation light for photosynthesis (Ek) is a key parameter in modulating photoprotection. We propose that the capacity to adequately regulate and actuate alternative photoprotective ‘safety valves’ in response to changing velocity of light intensity increase further enhances the photophysiological flexibility of diatoms. This might be an evolutionary outcome of diatom adaptation to turbulent marine ecosystems characterized by unpredictable mixing-related light changes over the light diel cycle.
Collapse
Affiliation(s)
| | - Serena Flori
- Stazione Zoologica Anton Dohrn, Villa Comunale, Naples, Italy
| | | | - Johann Lavaud
- Littoral Environnement et Sociétés, Unité Mixte de Recherche 7266, CNRS-Université de La Rochelle, La Rochelle, France
| | - Christophe Brunet
- Stazione Zoologica Anton Dohrn, Villa Comunale, Naples, Italy
- * E-mail:
| |
Collapse
|
41
|
Barra L, Chandrasekaran R, Corato F, Brunet C. The challenge of ecophysiological biodiversity for biotechnological applications of marine microalgae. Mar Drugs 2014; 12:1641-75. [PMID: 24663117 PMCID: PMC3967230 DOI: 10.3390/md12031641] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Revised: 01/31/2014] [Accepted: 02/12/2014] [Indexed: 01/26/2023] Open
Abstract
In this review, we aim to explore the potential of microalgal biodiversity and ecology for biotechnological use. A deeper exploration of the biodiversity richness and ecophysiological properties of microalgae is crucial for enhancing their use for applicative purposes. After describing the actual biotechnological use of microalgae, we consider the multiple faces of taxonomical, morphological, functional and ecophysiological biodiversity of these organisms, and investigate how these properties could better serve the biotechnological field. Lastly, we propose new approaches to enhancing microalgal growth, photosynthesis, and synthesis of valuable products used in biotechnological fields, mainly focusing on culture conditions, especially light manipulations and genetic modifications.
Collapse
Affiliation(s)
- Lucia Barra
- Stazione Zoologica Anton Dohrn, Villa Comunale, Naples 80121, Italy.
| | | | - Federico Corato
- Stazione Zoologica Anton Dohrn, Villa Comunale, Naples 80121, Italy.
| | - Christophe Brunet
- Stazione Zoologica Anton Dohrn, Villa Comunale, Naples 80121, Italy.
| |
Collapse
|