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Krivina E, Sinetova M, Zadneprovskaya E, Ivanova M, Starikov A, Shibzukhova K, Lobakova E, Bukin Y, Portnov A, Temraleeva A. The genus Coelastrella (Chlorophyceae, Chlorophyta): molecular species delimitation, biotechnological potential, and description of a new species Coelastrella affinis sp. nov., based on an integrative taxonomic approach. Antonie Van Leeuwenhoek 2024; 117:113. [PMID: 39158755 DOI: 10.1007/s10482-024-02008-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2024] [Accepted: 08/02/2024] [Indexed: 08/20/2024]
Abstract
Despite the long research history on the genus Coelastrella, its species diversity and biotechnological potential have not been fully explored. For the first time, cluster analysis of morphological characteristics was done in the representatives of the said genus. The results obtained have shown that morphological similarity does not necessarily indicate a molecular genetic relationship. It the light of it, the taxonomic status of species can reliably be determined using specific DNA region, such as 18S-ITS1-5.8S-ITS2. The V4 and V9 regions of gene 18S rRNA are relatively conservative fragments which are not suitable for species identification. The ITS2 can be used as a "short barcode". Among the advanced machine methods for delimitation species, the most effective algorithm for distinguishing Coelastrella species was the Generalized Mixed Yule Coalescent (GMYC) method. This paper represented for the first time our comprehensive review of the works devoted to the analysis of the biotechnological potential of representatives of the genus Coelastrella and shows that fatty acid composition of the three main chemogroups within the studied genus differs. In the future, this may form the basis for predicting the composition of the fatty acid profile of new strains, which is important while searching for organisms with specified biotechnological properties. In conclusion, an integrative approach was employed to describe Coelastrella affinis sp. nov., a new species of the genus Coelastrella with high biotechnological potential. Also, a new description of C. thermophila var. astaxanthina comb. nov. was proposed.
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Affiliation(s)
- E Krivina
- G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, Pushchino, Russia, 142290.
| | - M Sinetova
- K.A. Timiryazev Institute of Plant Physiology Russian Academy of Sciences, Moscow, Russia, 127276
| | - E Zadneprovskaya
- K.A. Timiryazev Institute of Plant Physiology Russian Academy of Sciences, Moscow, Russia, 127276
| | - M Ivanova
- Papanin Institute for Biology of Inland Waters Russian Academy of Sciences, Borok, Russia, 152742
| | - A Starikov
- K.A. Timiryazev Institute of Plant Physiology Russian Academy of Sciences, Moscow, Russia, 127276
| | - K Shibzukhova
- Lomonosov Moscow State University, Leninskie Gory 1-12, Moscow, Russia, 119234
| | - E Lobakova
- Lomonosov Moscow State University, Leninskie Gory 1-12, Moscow, Russia, 119234
| | - Yu Bukin
- Limnological Institute of the Siberian Branch of the Russian Academy of Sciences, Irkutsk, Russia, 664003
| | - A Portnov
- Institute of Physico-Chemical and Biological Problems in Soil Science Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, Pushchino, Russia, 142290
| | - A Temraleeva
- G.K. Skryabin Institute of Biochemistry and Physiology of Microorganisms Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, Pushchino, Russia, 142290
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Loureiro L, Morais J, Silva R, Martins JT, Geada P, Vasconcelos V, Vicente AA. Isolation and Identification of Lichen Photobionts Collected from Different Environments in North of Portugal and Evaluation of Bioactivities of Their Extracts. Foods 2024; 13:1759. [PMID: 38890987 PMCID: PMC11172358 DOI: 10.3390/foods13111759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Revised: 05/24/2024] [Accepted: 05/30/2024] [Indexed: 06/20/2024] Open
Abstract
Lichens are organisms constituted by a symbiotic relationship between a fungus (mycobiont) and a photoautotrophic partner (photobiont). Lichens produce several bioactive compounds; however, the biotechnological exploitation of this organism is hampered by its slow growth. To start studying the possibility of exploiting lichens as alternative sources of bioactive compounds, eighteen lichens were collected in the north of Portugal in order to isolate and study the bioactivity of their photobionts. It was possible to isolate and cultivate only eight photobionts. Three of them, LFR1, LFA2 and LCF3, belong to the Coelastrella genus, the other two (LFA1 and LCF1) belong to the Chlorella genus and for the remaining three photobionts, LFS1, LCA1 and LCR1, it was impossible to isolate their microalgae. These only grow in consortium with bacteria and/or cyanobacteria. All extracts showed antioxidant activity, mainly at a concentration of 10 mg.mL-1. LFS1, a consortium extract, showed the highest antioxidant power, as well as the highest concentration of phenolic compounds (5.16 ± 0.53 mg of gallic acid equivalents (GAE).g-1). The extracts under study did not show significant antibacterial activity against Escherichia coli, Listeria or Salmonella. The Coelastrella sp. and LFA1 extracts showed the highest hyaluronidase inhibition. The LFR1 extract at a concentration of 5 mg.mL-1 showed the highest anti-inflammatory activity (79.77 ± 7.66%). The extracts of Coelastrella sp. and LFA1 also showed greater antidiabetic activity, demonstrating the high inhibitory power of α-amylase and α-glucosidase. LFR1 at a concentration of 5 mg.mL-1, due to its selective cytotoxicity inhibiting the growth of cancer cells (Caco-2 cells), is a promising anticancer agent.
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Affiliation(s)
- Luís Loureiro
- CEB—Centre of Biological Engineering, University of Minho, 4750 Braga, Portugal; (J.T.M.); (P.G.); (A.A.V.)
| | - João Morais
- CIIMAR/CIMAR—Interdisciplinary Centre of Marine and Environmental Research and Department of Biology, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal; (J.M.); (R.S.); (V.V.)
| | - Raquel Silva
- CIIMAR/CIMAR—Interdisciplinary Centre of Marine and Environmental Research and Department of Biology, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal; (J.M.); (R.S.); (V.V.)
| | - Joana T. Martins
- CEB—Centre of Biological Engineering, University of Minho, 4750 Braga, Portugal; (J.T.M.); (P.G.); (A.A.V.)
| | - Pedro Geada
- CEB—Centre of Biological Engineering, University of Minho, 4750 Braga, Portugal; (J.T.M.); (P.G.); (A.A.V.)
| | - Vítor Vasconcelos
- CIIMAR/CIMAR—Interdisciplinary Centre of Marine and Environmental Research and Department of Biology, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal; (J.M.); (R.S.); (V.V.)
| | - António A. Vicente
- CEB—Centre of Biological Engineering, University of Minho, 4750 Braga, Portugal; (J.T.M.); (P.G.); (A.A.V.)
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Lee C, Cooper JT, Moroni F, Salim AM, Lee C, Spanbauer T, Theriot EC. Complete plastome of Coelastrum microporum Nägeli (Scenedesmaceae, Sphaeropleales). Mitochondrial DNA B Resour 2023; 8:948-951. [PMID: 37701527 PMCID: PMC10494757 DOI: 10.1080/23802359.2023.2252941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 08/23/2023] [Indexed: 09/14/2023] Open
Abstract
The genus Coelastrum Nägeli (Sphaeropleales; Scenedesmaceae) is a diverse genus of green algae with potential biotechnical applications. A sound understanding of its phylogeny will be a useful tool for predicting the distribution of traits that may enhance its utility, and may lead to a better understanding of its evolution and ecology. Here we present the plastome of Coelastrum microporum. Our exemplar was isolated from Gull Lake, Michigan and the complete plastome as assembled was 169,961 bp in length. The plastome contained 104 genes of which 68 were protein-coding genes (CDSs), 27 tRNA genes and three rRNA genes. The GC content of the plastome was 31.2%. The maximum likelihood phylogeny suggested that C. microporum was the sister group to a clade of single exemplars of three other genera in the Scenedesmaceae (Tetradesmus, Pectinodesmus and Coelastrella).
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Affiliation(s)
- Chanhee Lee
- Plant Biology Graduate Program, University of Texas at Austin, Austin, Texas, USA
| | - Joshua T. Cooper
- Department of Biological Sciences, Northern Kentucky University, Highland Heights, Kentucky, USA
| | - Francesca Moroni
- Plant Biology Graduate Program, University of Texas at Austin, Austin, Texas, USA
| | - Ana M. Salim
- Plant Biology Graduate Program, University of Texas at Austin, Austin, Texas, USA
| | - Chaehee Lee
- Department of Plant Sciences, University of California Davis, Davis, California, USA
| | - Trisha Spanbauer
- Department of Environmental Sciences and Lake Erie Center, University of Toledo, Toledo, Ohio, USA
| | - Edward C. Theriot
- Department of Integrative Biology, University of Texas at Austin, Austin, Texas, USA
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Thepsuthammarat K, Reungsang A, Plangklang P. Microalga Coelastrella sp. Cultivation on Unhydrolyzed Molasses-Based Medium towards the Optimization of Conditions for Growth and Biomass Production under Mixotrophic Cultivation. Molecules 2023; 28:molecules28083603. [PMID: 37110836 PMCID: PMC10145047 DOI: 10.3390/molecules28083603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 04/18/2023] [Accepted: 04/18/2023] [Indexed: 04/29/2023] Open
Abstract
Improving biomass production with the utilization of low-cost substrate is a crucial approach to overcome the hindrance of high cost in developing large-scale microalgae production. The microalga Coelastrella sp. KKU-P1 was mixotrophically cultivated using unhydrolyzed molasses as a carbon source, with the key environmental conditions being varied in order to maximize biomass production. The batch cultivation in flasks achieved the highest biomass production of 3.81 g/L, under an initial pH 5.0, a substrate to inoculum ratio of 100:3, an initial total sugar concentration of 10 g/L, and a sodium nitrate concentration of 1.5 g/L with continuous light illumination at 23.7 W/m2. The photobioreactor cultivation results indicated that CO2 supplementation did not improve biomass production. An ambient concentration of CO2 was sufficient to promote the mixotrophic growth of the microalga as indicated by the highest biomass production of 4.28 g/L with 33.91% protein, 46.71% carbohydrate, and 15.10% lipid. The results of the biochemical composition analysis suggest that the microalgal biomass obtained is promising as a source of essential amino acids and pigments as well as saturated and monounsaturated fatty acids. This research highlights the potential for bioresource production via microalgal mixotrophic cultivation using untreated molasses as a low-cost raw material.
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Affiliation(s)
- Kamolwan Thepsuthammarat
- Graduate School, Khon Kaen University, Khon Kaen 40002, Thailand
- Department of Biotechnology, Faculty of Technology, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Alissara Reungsang
- Department of Biotechnology, Faculty of Technology, Khon Kaen University, Khon Kaen 40002, Thailand
- Research Group for Development of Microbial Hydrogen Production Process from Biomass, Khon Kaen University, Khon Kaen 40002, Thailand
- Academy of Science, Royal Society of Thailand, Bangkok 10300, Thailand
| | - Pensri Plangklang
- Department of Biotechnology, Faculty of Technology, Khon Kaen University, Khon Kaen 40002, Thailand
- Research Group for Development of Microbial Hydrogen Production Process from Biomass, Khon Kaen University, Khon Kaen 40002, Thailand
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Iida H, Aburai N, Fujii K. Microalga-bacteria Community with High Level Carbon Dioxide Acclimation and Nitrogen-fixing Ability. Protist 2023; 174:125957. [PMID: 37105051 DOI: 10.1016/j.protis.2023.125957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 03/27/2023] [Accepted: 04/05/2023] [Indexed: 04/29/2023]
Abstract
Microalgal conversion of high-level CO2 in industrial flue gas to value-added products is attractive technology for mitigating global warming. However, reduction of microalgal production costs for medium ingredients, particularly nitrogen salts, is essential. The use of atmospheric nitrogen as a nitrogen source for microalgal cultivation will dramatically reduce its production costs. We attempted to enrich a microalga-bacteria community, which fixes both CO2 and atmospheric nitrogen under high level CO2. By cultivating biofilm recovered from the surface of cobbles in a riverbank, a microalgal flora which grows in a nitrogen salts-free medium under 10% CO2 was enriched, and the coccoid microalgal strain MP5 was isolated from it. Phylogenetic analysis revealed that the strain MP5 belongs to the genus Coelastrella, and the closest known species was C. terrestris. With PCR-DGGE analysis, it was found that the enriched microalgal community includes bacteria, some of which are suggested diazotrophs. The addition of bactericides in culture medium inhibited MP5 growth, even though the strain MP5 is eukaryotic. Growth of bacteria-free MP5 was stimulated by addition of Agrobacterium sp. isolates in nitrogen salts-free medium, suggesting that MP5 and the bacteria have responsibility for photosynthetic carbon fixation and nitrogen fixation, respectively.
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Affiliation(s)
- Haruki Iida
- Department of Chemistry and Life Science, Graduate School of Engineering, Kogakuin University, 2665-1 Nakano-cho, Hachioji city, Tokyo 1920015, Japan
| | - Nobuhiro Aburai
- Department of Chemistry and Life Science, Graduate School of Engineering, Kogakuin University, 2665-1 Nakano-cho, Hachioji city, Tokyo 1920015, Japan
| | - Katsuhiko Fujii
- Department of Chemistry and Life Science, Graduate School of Engineering, Kogakuin University, 2665-1 Nakano-cho, Hachioji city, Tokyo 1920015, Japan.
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6
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Chekanov K. Diversity and Distribution of Carotenogenic Algae in Europe: A Review. Mar Drugs 2023; 21:108. [PMID: 36827149 PMCID: PMC9958874 DOI: 10.3390/md21020108] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 01/24/2023] [Accepted: 01/25/2023] [Indexed: 02/04/2023] Open
Abstract
Microalgae are the richest source of natural carotenoids, which are valuable pigments with a high share of benefits. Often, carotenoid-producing algae inhabit specific biotopes with unfavorable or even extremal conditions. Such biotopes, including alpine snow fields and hypersaline ponds, are widely distributed in Europe. They can serve as a source of new strains for biotechnology. The number of algal species used for obtaining these compounds on an industrial scale is limited. The data on them are poor. Moreover, some of them have been reported in non-English local scientific articles and theses. This review aims to summarize existing data on microalgal species, which are known as potential carotenoid producers in biotechnology. These include Haematococcus and Dunaliella, both well-known to the scientific community, as well as less-elucidated representatives. Their distribution will be covered throughout Europe: from the Greek Mediterranean coast in the south to the snow valleys in Norway in the north, and from the ponds in Amieiro (Portugal) in the west to the saline lakes and mountains in Crimea (Ukraine) in the east. A wide spectrum of algal secondary carotenoids is reviewed: β-carotene, astaxanthin, canthaxanthin, echinenone, adonixanthin, and adonirubin. For convenience, the main concepts of biology of carotenoid-producing algae are briefly explained.
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Saito M, Watanabe H, Sasaki M, Ookubo M, Yarita T, Shiraiwa M, Asayama M. Coproduction of lipids and carotenoids by the novel green alga Coelastrella sp. depending on cultivation conditions. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2022; 37:e00769. [PMID: 36660172 PMCID: PMC9843265 DOI: 10.1016/j.btre.2022.e00769] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 10/07/2022] [Accepted: 10/15/2022] [Indexed: 12/23/2022]
Abstract
A novel green alga Coelastrella sp. D3-1 was isolated, and its unique and significant lipid and carotenoid coproduction capability was characterised depending on cultivation conditions. The main component of produced lipids was triacylglycerol under nutrient depletion conditions, in which fatty-methyl-esters made up 20-44% of the dry cell weight (DCW) and consisted of abundant C16:0 and C18:1 fatty acids. The red (orange)-stage cells also produced a large portion of carotenoids (38.5% of the DCW) involving echinenone, canthaxanthin, and astaxanthin as major components accumulated over only 5-6 days under optimal conditions. Stress tests revealed resistance of the cells to pH 2-11, high temperatures (40-60 °C), ultraviolet irradiation, drought, and H2O2 treatment, thereby showing a robust nature. Both green- and red (orange)-stage cell extracts also showed antioxidant and anti-inflammatory abilities, implying that they have significant functions as useful biorefinery materials.
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Affiliation(s)
- Mizuki Saito
- College of Agriculture, Ibaraki University, 3-21-1 Ami, Ibaraki 300-0332, Japan
| | - Haruka Watanabe
- College of Agriculture, Ibaraki University, 3-21-1 Ami, Ibaraki 300-0332, Japan
| | - Mitsuki Sasaki
- College of Agriculture, Ibaraki University, 3-21-1 Ami, Ibaraki 300-0332, Japan
| | - Madoka Ookubo
- College of Agriculture, Ibaraki University, 3-21-1 Ami, Ibaraki 300-0332, Japan
| | - Takashi Yarita
- College of Agriculture, Ibaraki University, 3-21-1 Ami, Ibaraki 300-0332, Japan,United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, 3-5-8 Fuchu, Tokyo 183-8509, Japan
| | - Masakazu Shiraiwa
- College of Agriculture, Ibaraki University, 3-21-1 Ami, Ibaraki 300-0332, Japan,United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, 3-5-8 Fuchu, Tokyo 183-8509, Japan
| | - Munehiko Asayama
- College of Agriculture, Ibaraki University, 3-21-1 Ami, Ibaraki 300-0332, Japan,United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, 3-5-8 Fuchu, Tokyo 183-8509, Japan,Corresponding author at: College of Agriculture, Ibaraki University, 3-21-1 Ami, Ibaraki 300-0332, Japan.
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Sousa V, Loureiro L, Carvalho G, Pereira R. Extraction of biomolecules from Coelastrella sp. LRF1 biomass using Ohmic Heating technology. INNOV FOOD SCI EMERG 2022. [DOI: 10.1016/j.ifset.2022.103059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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9
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Boutarfa S, Senoussi MM, Gonzalez-Silvera D, López-Jiménez JÁ, Aboal M. The Green Microalga Coelastrella thermophila var. globulina (Scenedesmaceae, Chlorophyta) Isolated from an Algerian Hot Spring as a Potential Source of Fatty Acids. Life (Basel) 2022; 12:life12040560. [PMID: 35455051 PMCID: PMC9028475 DOI: 10.3390/life12040560] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 04/05/2022] [Indexed: 11/16/2022] Open
Abstract
Screening microalgae from extreme environments, including hot springs, is an important research topic that has lately emerged. A thermophilic green alga was isolated from a north-eastern Algerian hot spring at a temperature of 63 °C, and its fatty acid (FA) profile was explored. The strain was cultivated in BBM medium at 35 °C in a 16:8 h light/dark cycle and 75 μM photons m−2 s−1. The morphological studies combined with phylogenetic analysis revealed that the isolate was Coelastrella thermophila var. globulina Q. Wang, H. Song, X. Liu, G. Liu and Z. Hu. The monounsaturated fatty acid (MUFA) content was 51.12%. The saturated fatty acid (SFA) and polyunsaturated fatty acid (PUFA) content, respectively, accounted for 27.01% and 21.87%. The main FA was oleic acid (18:1n–9), whose value was 35.95%, followed in decreasing order by palmitic acid (16:0) with 21.45%, linoleic acid (18:2n–6) with 14.38% and α-linolenic acid (18:3n–3) with 04.22%. The FA profile exhibited high total n–6 and n–3 PUFA values (15.80% and 5.76%, respectively). Coelastrella thermophila var. globulina is particularly interesting for producing n-6 and n-3 PUFA and is likely suitable for other biotechnological purposes. This is the first time that this taxon has been reported in hot springs. Other species can be expected to be reported, which emphasises the importance of the biodiversity of extreme habitats.
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Affiliation(s)
- Soumia Boutarfa
- Laboratory of Biomolecules and Plant Breeding, Department of Nature and Life Sciences, Faculty of Exact Sciences and Nature and Life Sciences, University of Larbi Ben M’hidi, Oum El Bouaghi 04000, Algeria;
- Laboratory of Algology, Department of Plant Biology, Faculty of Biology, Espinardo Campus, E-30100 Murcia, Spain;
- Correspondence:
| | - Mohammed Mourad Senoussi
- Laboratory of Biomolecules and Plant Breeding, Department of Nature and Life Sciences, Faculty of Exact Sciences and Nature and Life Sciences, University of Larbi Ben M’hidi, Oum El Bouaghi 04000, Algeria;
| | - Daniel Gonzalez-Silvera
- Department of Physiology, University of Murcia, E-30100 Murcia, Spain; (D.G.-S.); (J.Á.L.-J.)
| | | | - Marina Aboal
- Laboratory of Algology, Department of Plant Biology, Faculty of Biology, Espinardo Campus, E-30100 Murcia, Spain;
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Coelastrella terrestris for Adonixanthin Production: Physiological Characterization and Evaluation of Secondary Carotenoid Productivity. Mar Drugs 2022; 20:md20030175. [PMID: 35323473 PMCID: PMC8954916 DOI: 10.3390/md20030175] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 02/23/2022] [Accepted: 02/25/2022] [Indexed: 02/01/2023] Open
Abstract
A novel strain of Coelastrella terrestris (Chlorophyta) was collected from red mucilage in a glacier foreland in Iceland. Its morphology showed characteristic single, ellipsoidal cells with apical wart-like wall thickenings. Physiological characterization revealed the presence of the rare keto-carotenoid adonixanthin, as well as high levels of unsaturated fatty acids of up to 85%. Initial screening experiments with different carbon sources for accelerated mixotrophic biomass growth were done. Consequently, a scale up to 1.25 L stirred photobioreactor cultivations yielded a maximum of 1.96 mg·L−1 adonixanthin in free and esterified forms. It could be shown that supplementing acetate to the medium increased the volumetric productivity after entering the nitrogen limitation phase compared to autotrophic control cultures. This study describes a promising way of biotechnological adonixanthin production using Coelastrella terrestris.
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A Fast-Growing Oleaginous Strain of Coelastrella Capable of Astaxanthin and Canthaxanthin Accumulation in Phototrophy and Heterotrophy. Life (Basel) 2022; 12:life12030334. [PMID: 35330084 PMCID: PMC8955800 DOI: 10.3390/life12030334] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 02/08/2022] [Accepted: 02/21/2022] [Indexed: 12/23/2022] Open
Abstract
Considering the importance of microalgae as a promising feedstock for the production of both low- and high-value products, such as lipids and pigments, it is desirable to isolate strains which simultaneously accumulate these two types of products and grow in various conditions in order to widen their biotechnological applicability. A novel freshwater strain from the genus Coelastrella was isolated in Belgium. Compared to other Coelastrella species, the isolate presented rapid growth in phototrophy, dividing 3.5 times per day at a light intensity of 400 µmol·m−2·s−1 and 5% CO2. In addition, nitrogen depletion was associated with the accumulation of astaxanthin, canthaxanthin, and fatty acids, which reached ~30% of dry weight, and a majority of SFAs and MUFAs, which are good precursors for biodiesel. This strain also accumulated astaxanthin and canthaxanthin in heterotrophy. Although the content was very low in this latter condition, it is an interesting feature considering the biotechnological potential of the microalgal heterotrophic growth. Thus, due to its rapid growth in the light, its carotenogenesis, and its fatty acids characteristics, the newly identified Coelastrella strain could be considered as a potential candidate for biorefinery purposes of both low- and high-values products.
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12
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Lykov AP, Uvarov IP, Gevorgiz RG, Zheleznova SN. Effect of the Lipid Fraction of Microalgae on Biochemical Parameters in Female C57BL/6 Mice. Bull Exp Biol Med 2022; 172:301-304. [PMID: 35001308 DOI: 10.1007/s10517-022-05381-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Indexed: 11/24/2022]
Abstract
We studied the effect of microalgae of various systematic groups added to the ration on the biochemical parameters of blood serum and liver and kidney tissue in rats. It was found that microalgae had different effects on the levels of proteins, lipids, and sex hormones, activity of aminotransaminases, and filtration capacity of the kidneys. Microalgae also affected the biochemical parameters of the liver and kidney tissues.
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Affiliation(s)
- A P Lykov
- Research Institute of Clinical and Experimental Lymphology - Affiliated Branch of Federal Research Centre Institute of Cytology and Genetics, Siberian Division of Russian Academy of Sciences, Novosibirsk, Russia.
| | - I P Uvarov
- Department of Veterinary Medicine of the City of Novosibirsk, Novosibirsk, Russia
| | - R G Gevorgiz
- Federal Research Centre O. A. Kovalevsky Institute of Biology of the Southern Seas, Russian Academy of Sciences, Sevastopol, Russia
| | - S N Zheleznova
- Federal Research Centre O. A. Kovalevsky Institute of Biology of the Southern Seas, Russian Academy of Sciences, Sevastopol, Russia
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13
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Phalanisong P, Plangklang P, Reungsang A. Photoautotrophic and Mixotrophic Cultivation of Polyhydroxyalkanoate-Accumulating Microalgae Consortia Selected under Nitrogen and Phosphate Limitation. Molecules 2021; 26:7613. [PMID: 34946700 PMCID: PMC8705517 DOI: 10.3390/molecules26247613] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 12/05/2021] [Accepted: 12/12/2021] [Indexed: 11/16/2022] Open
Abstract
Microalgae consortia were photoautotrophically cultivated in sequencing batch photobioreactors (SBPRs) with an alteration of the normal growth and starvation (nutrient limitation) phases to select consortia capable of polyhydroxyalkanoate (PHA) accumulation. At the steady state of SBPR operation, the obtained microalgae consortia, selected under nitrogen and phosphate limitation, accumulated up to 11.38% and 10.24% of PHA in their biomass, which was identified as poly(3-hydroxybutyrate) (P3HB). Photoautotrophic and mixotrophic batch cultivation of the selected microalgae consortia was conducted to investigate the potential of biomass and PHA production. Sugar source supplementation enhanced the biomass and PHA production, with the highest PHA contents of 10.94 and 6.2%, and cumulative PHA productions of 100 and 130 mg/L, with this being achieved with sugarcane juice under nitrogen and phosphate limitation, respectively. The analysis of other macromolecules during batch cultivation indicated a high content of carbohydrates and lipids under nitrogen limitation, while higher protein contents were detected under phosphate limitation. These results recommended the selected microalgae consortia as potential tools for PHA and bioresource production. The mixed-culture non-sterile cultivation system developed in this study provides valuable information for large-scale microalgal PHA production process development following the biorefinery concept.
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Affiliation(s)
- Parichat Phalanisong
- Research Group for Development of Microbial Hydrogen Production Process from Biomass, Khon Kaen University, Khon Kaen 40002, Thailand; (P.P.); (P.P.)
| | - Pensri Plangklang
- Research Group for Development of Microbial Hydrogen Production Process from Biomass, Khon Kaen University, Khon Kaen 40002, Thailand; (P.P.); (P.P.)
- Department of Biotechnology, Faculty of Technology, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Alissara Reungsang
- Research Group for Development of Microbial Hydrogen Production Process from Biomass, Khon Kaen University, Khon Kaen 40002, Thailand; (P.P.); (P.P.)
- Department of Biotechnology, Faculty of Technology, Khon Kaen University, Khon Kaen 40002, Thailand
- Academy of Science, Royal Society of Thailand, Bangkok 10300, Thailand
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Kselíková V, Singh A, Bialevich V, Čížková M, Bišová K. Improving microalgae for biotechnology - From genetics to synthetic biology - Moving forward but not there yet. Biotechnol Adv 2021; 58:107885. [PMID: 34906670 DOI: 10.1016/j.biotechadv.2021.107885] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 11/28/2021] [Accepted: 12/07/2021] [Indexed: 12/28/2022]
Abstract
Microalgae are a diverse group of photosynthetic organisms that can be exploited for the production of different compounds, ranging from crude biomass and biofuels to high value-added biochemicals and synthetic proteins. Traditionally, algal biotechnology relies on bioprospecting to identify new highly productive strains and more recently, on forward genetics to further enhance productivity. However, it has become clear that further improvements in algal productivity for biotechnology is impossible without combining traditional tools with the arising molecular genetics toolkit. We review recent advantages in developing high throughput screening methods, preparing genome-wide mutant libraries, and establishing genome editing techniques. We discuss how algae can be improved in terms of photosynthetic efficiency, biofuel and high value-added compound production. Finally, we critically evaluate developments over recent years and explore future potential in the field.
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Affiliation(s)
- Veronika Kselíková
- Institute of Microbiology of the Czech Academy of Sciences, Centre Algatech, Laboratory of Cell Cycles of Algae, 379 81 Třeboň, Czech Republic; Faculty of Science, University of South Bohemia, 37005 České Budějovice, Czech Republic
| | - Anjali Singh
- Institute of Microbiology of the Czech Academy of Sciences, Centre Algatech, Laboratory of Cell Cycles of Algae, 379 81 Třeboň, Czech Republic
| | - Vitali Bialevich
- Institute of Microbiology of the Czech Academy of Sciences, Centre Algatech, Laboratory of Cell Cycles of Algae, 379 81 Třeboň, Czech Republic
| | - Mária Čížková
- Institute of Microbiology of the Czech Academy of Sciences, Centre Algatech, Laboratory of Cell Cycles of Algae, 379 81 Třeboň, Czech Republic
| | - Kateřina Bišová
- Institute of Microbiology of the Czech Academy of Sciences, Centre Algatech, Laboratory of Cell Cycles of Algae, 379 81 Třeboň, Czech Republic.
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15
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Zaytseva A, Chekanov K, Zaytsev P, Bakhareva D, Gorelova O, Kochkin D, Lobakova E. Sunscreen Effect Exerted by Secondary Carotenoids and Mycosporine-like Amino Acids in the Aeroterrestrial Chlorophyte Coelastrella rubescens under High Light and UV-A Irradiation. PLANTS (BASEL, SWITZERLAND) 2021; 10:plants10122601. [PMID: 34961072 PMCID: PMC8704241 DOI: 10.3390/plants10122601] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 11/19/2021] [Accepted: 11/23/2021] [Indexed: 05/13/2023]
Abstract
The microalga Coelastrella rubescens dwells in habitats with excessive solar irradiation; consequently, it must accumulate diverse compounds to protect itself. We characterized the array of photoprotective compounds in C. rubescens. Toward this goal, we exposed the cells to high fluxes of visible light and UV-A and analyzed the ability of hydrophilic and hydrophobic extracts from the cells to absorb radiation. Potential light-screening compounds were profiled by thin layer chromatography and UPLC-MS. Coelastrella accumulated diverse carotenoids that absorbed visible light in the blue-green part of the spectrum and mycosporine-like amino acids (MAA) that absorbed the UV-A. It is the first report on the occurrence of MAA in Coelastrella. Two new MAA, named coelastrin A and coelastrin B, were identified. Transmission electron microscopy revealed the development of hydrophobic subcompartments under the high light and UV-A exposition. We also evaluate and discuss sporopollenin-like compounds in the cell wall and autophagy-like processes as the possible reason for the decrease in sunlight absorption by cells, in addition to inducible sunscreen accumulation. The results suggested that C. rubescens NAMSU R1 accumulates a broad range of valuable photoprotective compounds in response to UV-A and visible light irradiation, which indicates this strain as a potential producer for biotechnology.
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Affiliation(s)
- Anna Zaytseva
- Department of Bioengineering, Faculty of Biology, Lomonosov Moscow State University, 1-12 Leninskie Gory, 119192 Moscow, Russia; (A.Z.); (P.Z.); (D.B.); (O.G.); (E.L.)
| | - Konstantin Chekanov
- Department of Bioengineering, Faculty of Biology, Lomonosov Moscow State University, 1-12 Leninskie Gory, 119192 Moscow, Russia; (A.Z.); (P.Z.); (D.B.); (O.G.); (E.L.)
- Centre for Humanities Research and Technology, National Research Nuclear University MEPhI, 31 Kashirskoye Highway, 115522 Moscow, Russia
- Correspondence:
| | - Petr Zaytsev
- Department of Bioengineering, Faculty of Biology, Lomonosov Moscow State University, 1-12 Leninskie Gory, 119192 Moscow, Russia; (A.Z.); (P.Z.); (D.B.); (O.G.); (E.L.)
- N.N. Semyonov Federal Research Center for Chemical Physics, Russian Academy of Science, 4 Kosygina Street, Building 1, 119192 Moscow, Russia
| | - Daria Bakhareva
- Department of Bioengineering, Faculty of Biology, Lomonosov Moscow State University, 1-12 Leninskie Gory, 119192 Moscow, Russia; (A.Z.); (P.Z.); (D.B.); (O.G.); (E.L.)
| | - Olga Gorelova
- Department of Bioengineering, Faculty of Biology, Lomonosov Moscow State University, 1-12 Leninskie Gory, 119192 Moscow, Russia; (A.Z.); (P.Z.); (D.B.); (O.G.); (E.L.)
| | - Dmitry Kochkin
- Department of Plant Physiology, Faculty of Biology, Lomonosov Moscow State University, 1-12 Leninskie Gory, 119192 Moscow, Russia;
- Timiryazev Institute of Plant Physiology, Russian Academy of Science, Botanicheskaya Street 35, 127276 Moscow, Russia
| | - Elena Lobakova
- Department of Bioengineering, Faculty of Biology, Lomonosov Moscow State University, 1-12 Leninskie Gory, 119192 Moscow, Russia; (A.Z.); (P.Z.); (D.B.); (O.G.); (E.L.)
- Timiryazev Institute of Plant Physiology, Russian Academy of Science, Botanicheskaya Street 35, 127276 Moscow, Russia
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16
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D'Elia L, Imbimbo P, Liberti D, Bolinesi F, Mangoni O, Pollio A, Olivieri G, Monti DM. Thermo resistant antioxidants from photoautotrophic microorganisms: screening and characterization. World J Microbiol Biotechnol 2021; 37:215. [PMID: 34762205 DOI: 10.1007/s11274-021-03180-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 10/27/2021] [Indexed: 11/30/2022]
Abstract
The demand for natural antioxidants to be used in food industry is increasing, as synthetic antioxidants are toxic and have high production costs. Specifically, food processing and preservation require antioxidants resistant to thermal sterilization processes. In this study, twenty-five strains among microalgae and cyanobacteria were screened as antioxidants producers. The species Enallax sp., Synechococcus bigranulatus and Galdieria sulphuraria showed the highest content of chlorophyll a and total carotenoids. In vitro stability and antioxidant activity of the ethanolic extracts were performed. The results revealed that pigments present in the extracts, obtained from the previously mentioned species, were stable at room temperature and exhibited in vitro free radical scavenging potential with IC50 values of 0.099 ± 0.001, 0.048 ± 0.001 and 0.13 ± 0.02 mg mL-1, respectively. Biocompatibility assay showed that the extracts were not toxic on immortalized cell lines. The antioxidant activity was also tested on a cell-based model by measuring intracellular ROS levels after sodium arsenite treatment. Noteworthy, extracts were able to exert the same protective effect, before and after the pasteurization process. Results clearly indicate the feasibility of obtaining biologically active and thermostable antioxidants from microalgae. Green solvents can be used to obtain thermo-resistant antioxidants from cyanobacteria and microalgae which can be used in the food industry. Thus, the substitution of synthetic pigments with natural ones is now practicable.
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Affiliation(s)
- Luigi D'Elia
- Department of Chemical Sciences, University of Naples Federico II, Via Cinthia 4, 80126, Naples, Italy
| | - Paola Imbimbo
- Department of Chemical Sciences, University of Naples Federico II, Via Cinthia 4, 80126, Naples, Italy
| | - Davide Liberti
- Department of Chemical Sciences, University of Naples Federico II, Via Cinthia 4, 80126, Naples, Italy
| | - Francesco Bolinesi
- Department of Biology, University of Naples Federico II, Via Cinthia 4, 80126, Naples, Italy
| | - Olga Mangoni
- Department of Biology, University of Naples Federico II, Via Cinthia 4, 80126, Naples, Italy
| | - Antonino Pollio
- Department of Biology, University of Naples Federico II, Via Cinthia 4, 80126, Naples, Italy
| | - Giuseppe Olivieri
- Bioprocess Engineering Group, Wageningen University and Research, Droevendaalsesteeg 1, 6700AA, Wageningen, The Netherlands. .,Department of Chemical, Materials and Industrial Engineering, University of Naples Federico II, Piazzale Tecchio 80, 80125, Naples, Italy.
| | - Daria Maria Monti
- Department of Chemical Sciences, University of Naples Federico II, Via Cinthia 4, 80126, Naples, Italy.
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