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Mora-Godínez S, Senés-Guerrero C, Pacheco A. De novo transcriptome and lipidome analysis of Desmodesmus abundans under model flue gas reveals adaptive changes after ten years of acclimation to high CO2. PLoS One 2024; 19:e0299780. [PMID: 38758755 PMCID: PMC11101044 DOI: 10.1371/journal.pone.0299780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 02/14/2024] [Indexed: 05/19/2024] Open
Abstract
Microalgae's ability to mitigate flue gas is an attractive technology that can valorize gas components through biomass conversion. However, tolerance and growth must be ideal; therefore, acclimation strategies are suggested. Here, we compared the transcriptome and lipidome of Desmodesmus abundans strains acclimated to high CO2 (HCA) and low CO2 (LCA) under continuous supply of model flue gas (MFG) and incomplete culture medium (BG11-N-S). Initial growth and nitrogen consumption from MFG were superior in strain HCA, reaching maximum productivity a day before strain LCA. However, similar productivities were attained at the end of the run, probably because maximum photobioreactor capacity was reached. RNA-seq analysis during exponential growth resulted in 16,435 up-regulated and 4,219 down-regulated contigs in strain HCA compared to LCA. Most differentially expressed genes (DEGs) were related to nucleotides, amino acids, C fixation, central carbon metabolism, and proton pumps. In all pathways, a higher number of up-regulated contigs with a greater magnitude of change were observed in strain HCA. Also, cellular component GO terms of chloroplast and photosystems, N transporters, and secondary metabolic pathways of interest, such as starch and triacylglycerols (TG), exhibited this pattern. RT-qPCR confirmed N transporters expression. Lipidome analysis showed increased glycerophospholipids in strain HCA, while LCA exhibited glycerolipids. Cell structure and biomass composition also revealed strains differences. HCA possessed a thicker cell wall and presented a higher content of pigments, while LCA accumulated starch and lipids, validating transcriptome and lipidome data. Overall, results showed significant differences between strains, where characteristic features of adaptation and tolerance to high CO2 might be related to the capacity to maintain a higher flux of internal C, regulate intracellular acidification, active N transporters, and synthesis of essential macromolecules for photosynthetic growth.
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Affiliation(s)
- Shirley Mora-Godínez
- Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Monterrey, Nuevo Leon, Mexico
| | | | - Adriana Pacheco
- Tecnologico de Monterrey, Escuela de Ingenieria y Ciencias, Monterrey, Nuevo Leon, Mexico
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Mora-Godínez S, Contreras-Torres FF, Pacheco A. Characterization of Silver Nanoparticle Systems from Microalgae Acclimated to Different CO 2 Atmospheres. ACS OMEGA 2023; 8:21969-21982. [PMID: 37360473 PMCID: PMC10286254 DOI: 10.1021/acsomega.3c01914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 05/23/2023] [Indexed: 06/28/2023]
Abstract
Green synthesis of metallic nanoparticles using microalgae exposed to high CO2 atmospheres has not been studied in detail; this is of relevance in biological CO2 mitigation systems where considerable biomass is produced. In this study, we further characterized the potential of an environmental isolate Desmodesmus abundans acclimated to low and high CO2 atmospheres [low carbon acclimation (LCA) and high carbon acclimation (HCA) strains, respectively] as a platform for silver nanoparticle (AgNP) synthesis. As previously characterized, cell pellets at pH 11 were selected from the biological components tested of the different microalgae, which included the culture collection strain Spirulina platensis. AgNP characterization showed superior performance of strain HCA components as preserving the supernatant resulted in synthesis in all pH conditions. Size distribution analysis evidenced strain HCA cell pellet platform (pH 11) as the most homogeneous AgNP population (14.9 ± 6.4 nm diameter, -32.7 ± 5.3 mV) followed by S. platensis (18.3 ± 7.5 nm, -33.9 ± 2.4 mV). In contrast, strain LCA presented a broader population where the size was above 100 nm (127.8 ± 14.8 nm, -26.7 ± 2.4 mV). Fourier-transform infrared and Raman spectroscopies showed that the reducing power of microalgae might be attributed to functional groups in the cell pellet from proteins, carbohydrates, and fatty acids and, in the supernatant, from amino acids, monosaccharides, disaccharides, and polysaccharides. Microalgae AgNPs exhibited similar antimicrobial properties in the agar diffusion test against Escherichia coli. However, they were not effective against Gram (+) Lactobacillus plantarum. It is suggested that a high CO2 atmosphere potentiates components in the D. abundans strain HCA for nanotechnology applications.
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Affiliation(s)
- Shirley Mora-Godínez
- Tecnologico
de Monterrey, Escuela de Ingenieria y Ciencias, Ave. Eugenio Garza Sada 2501, Monterrey, N.L. 64849, Mexico
| | - Flavio F. Contreras-Torres
- Tecnologico
de Monterrey, The Institute for Obesity Research, Ave. Eugenio Garza Sada 2501, Monterrey, N.L. 64849, Mexico
| | - Adriana Pacheco
- Tecnologico
de Monterrey, Escuela de Ingenieria y Ciencias, Ave. Eugenio Garza Sada 2501, Monterrey, N.L. 64849, Mexico
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Peng H, Huang Y, Xia A, Zhu X, Zhu X, Liao Q. Revealing mechanism and influence of microalgae cells' periodical auto-agglomeration induced by high concentration of carbon dioxide. BIORESOURCE TECHNOLOGY 2023; 382:129120. [PMID: 37141996 DOI: 10.1016/j.biortech.2023.129120] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 04/21/2023] [Accepted: 04/27/2023] [Indexed: 05/06/2023]
Abstract
The efficient cultivation of microalgae using CO2 from flue gas can be a win-win situation for both environmental protection and energy accessibility. In general, 10-20% of CO2 in flue gas would decrease pH and inhibit microalgae growth. However, Chlorella sorokiniana MB-1 under 15% CO2 showed a periodical auto-agglomeration, which promoted microalgae growth on the contrary in this study. The maximum biomass concentration of 3.27 g L-1 was higher than that cultivated with an optimal CO2 concentration. The pH decreased to 6.04 after the mixed gas with 15% CO2 (v/v) was bubbled into medium for 0.5 hours, which resulted in auto-agglomeration to protect microalgae from acidification and keep a high specific growth rate of 0.03 h-1. Then the pH recovered to 7 during stabilization phase, auto-agglomeration ratio was up to 100% because of lamellar extracellular polymeric substances. Therefore, the interesting periodical agglomeration both enhanced growth and simplified harvesting.
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Affiliation(s)
- Hongyan Peng
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Ministry of Education, Chongqing 400044, China; Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400044, China
| | - Yun Huang
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Ministry of Education, Chongqing 400044, China; Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400044, China
| | - Ao Xia
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Ministry of Education, Chongqing 400044, China; Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400044, China
| | - Xianqing Zhu
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Ministry of Education, Chongqing 400044, China; Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400044, China
| | - Xun Zhu
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Ministry of Education, Chongqing 400044, China; Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400044, China
| | - Qiang Liao
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Ministry of Education, Chongqing 400044, China; Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400044, China.
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Chebotaryova SP, Zakharova OV, Gusev AA, Baranchikov PA, Kolesnikov EA, Yakusheva AS, Skripnikova EV, Lobakova ES, Xu J, Alam MA, Solovchenko AE. Assessment of the Tolerance of a Chlorophyte Desmodesmus to CuO-NP for Evaluation of the Nanopollution Bioremediation Potential of This Microalga. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:737. [PMID: 36839106 PMCID: PMC9959455 DOI: 10.3390/nano13040737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 02/11/2023] [Accepted: 02/14/2023] [Indexed: 06/18/2023]
Abstract
Broad application of CuO nanoparticles (CuO-NP) for industrial and household purposes leads to a continuous increase in their discharge to, and, hence, ever-increasing environmental hazards for aquatic ecosystems. Microalgae-based technologies hold promise for bioremediation of diverse hazardous micropollutants (HMP), including NP, from wastewater. In this study, we tested the ability of the green microalga Desmodesmus sp. to accumulate CuO-NP or their components. We also assessed the tolerance of this microalga to the environmentally relevant concentrations of CuO-NP. Using scanning electron microscopy, we demonstrated that the average size of CuO-NP was 50-100 nm, and their purity was confirmed with elemental composition analysis. Tests of the colloidal suspensions of CuO-NP showed that the hydrodynamic diameter of CuO-NP and their aggregates was below 100 nm. Flow cytometry analysis showed that CuO-NP at a concentration of 100 µg L-1 slightly inhibited the viability of microalgae cells and led to an increase in their oxidative stress. The assessment of the condition of photosystem II showed that CuO-NP exert a multifaceted effect on the photosynthetic apparatus of Desmodesmus sp., depending on the concentration of and the exposure to the CuO-NP. Desmodesmus sp. turned to be relatively tolerant to CuO-NP. In addition, the ICP-MS method revealed increased bioaccumulation of copper by microalgae cells in the experimental groups. The outcomes of this study indicate that the Desmodesmus sp. has a significant potential for bioremoval of the copper-based nanostructured HMP from an aquatic environment.
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Affiliation(s)
- Svetlana P. Chebotaryova
- Institute for Environmental Science and Biotechnology, Derzhavin Tambov State University, 392020 Tambov, Russia
| | - Olga V. Zakharova
- Institute for Environmental Science and Biotechnology, Derzhavin Tambov State University, 392020 Tambov, Russia
- Department of Functional Nanosystems and High-Temperature Materials, National University of Science and Technology «MISIS», 119991 Moscow, Russia
- Engineering Center, Plekhanov Russian University of Economics, 117997 Moscow, Russia
| | - Alexander A. Gusev
- Institute for Environmental Science and Biotechnology, Derzhavin Tambov State University, 392020 Tambov, Russia
- Department of Functional Nanosystems and High-Temperature Materials, National University of Science and Technology «MISIS», 119991 Moscow, Russia
- Engineering Center, Plekhanov Russian University of Economics, 117997 Moscow, Russia
| | - Petr A. Baranchikov
- Institute for Environmental Science and Biotechnology, Derzhavin Tambov State University, 392020 Tambov, Russia
| | - Evgenii A. Kolesnikov
- Department of Functional Nanosystems and High-Temperature Materials, National University of Science and Technology «MISIS», 119991 Moscow, Russia
| | - Anastasia S. Yakusheva
- Department of Functional Nanosystems and High-Temperature Materials, National University of Science and Technology «MISIS», 119991 Moscow, Russia
| | - Elena V. Skripnikova
- Institute for Environmental Science and Biotechnology, Derzhavin Tambov State University, 392020 Tambov, Russia
| | - Elena S. Lobakova
- Faculty of Biology, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - Jingliang Xu
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450046, China
| | - Md. Asraful Alam
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450046, China
| | - Alexei E. Solovchenko
- Institute for Environmental Science and Biotechnology, Derzhavin Tambov State University, 392020 Tambov, Russia
- Faculty of Biology, Lomonosov Moscow State University, 119234 Moscow, Russia
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Ferreira GF, Pinto LFR, Filho RM, Fregolente LV. Maximizing unsaturated fatty acids production by using sugarcane agroindustry wastes in cultivation of Desmodesmus sp. in a flat plate photobioreactor. J Biotechnol 2022; 360:117-124. [PMID: 36375622 DOI: 10.1016/j.jbiotec.2022.11.007] [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: 07/01/2022] [Revised: 11/08/2022] [Accepted: 11/09/2022] [Indexed: 11/13/2022]
Abstract
Microalgae lipid accumulation can be accomplished by different strategies rather than naturally reaching the stationary phase. Many studies employ nitrogen (N) depletion to improve lipid production; however, this approach might not be a suitable alternative when growth in wastewater is attempted. Agro-industry effluents in particular can have high concentrations of N, so nutrient removal is also required. This study evaluated two possibilities of achieving stress conditions in Desmodesmus sp. cultivation: light intensity and CO2 concentration. The culture medium also included liquid and solid residues from the sugarcane agro-industry: vinasse and a biofertilizer produced from bagasse biochar. Optimization of growth in a flat plate photobioreactor was conducted by combining a two-level factorial design and simplex methodology. Both the highest biomass and polyunsaturated fatty acid productivities (150.2 and 21.4 mg L-1 day-1, respectively) were achieved near the central points (5% CO2 in air and 1000 μmol m-2 s-1 light intensity). These results show the possibility of microalgae growth in a sustainable medium coupled with high-value lipid production, e.g., omegas-3, - 6, and - 9.
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Mora-Godínez S, Rodríguez-López CE, Senés-Guerrero C, Treviño V, Díaz de la Garza R, Pacheco A. Effect of high CO2 concentrations on Desmodesmus abundans RSM lipidome. J CO2 UTIL 2022. [DOI: 10.1016/j.jcou.2022.102183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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7
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Wang J, Zhang Q, Chen N, Chen J, Zhou J, Li J, Wei Y, Bu D. A new Desmodesmus sp. from the Tibetan Yamdrok Lake. PLoS One 2022; 17:e0275799. [PMID: 36206243 PMCID: PMC9544026 DOI: 10.1371/journal.pone.0275799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Accepted: 09/23/2022] [Indexed: 11/19/2022] Open
Abstract
Revegetation of exposed sub-soil, while a desirable recovery strategy, often fails due to extreme soil chemical properties, such as low organic matter and pH levels. Microalgae play a key role in maintaining water quality in the lakes and rivers on the Qinghai-Tibet plateau. Plateau microalgae have extensive application prospects in environmental purification, biotechnology, medicine and cosmetics, food industry, and renewable energy. To identify the high biomass of microalgae present in nature, microalgae with the greatest biomass were screened from natural water samples through filtration, pre-culture, and plate scribing separation. Following identification via 18S rRNA sequencing as for the Desmodesmus sp., we constructed a neighbor-joining phylogenetic tree. The novel Desmodesmus sp. from the Tibetan Yamdrok Lake were identified through polyphasic taxonomy. Simultaneously, the sequence of the experimental samples and the target species were shown different following the identification and analysis of SNP and InDel loci. The light-absorbing properties of plateau Desmodesmus sp. have been investigated previously. The characteristic absorption peak of Desmodesmus sp. on the plateau was measured at 689 nm in the visible spectrum using full wavelength scanning with a UV-Vis spectrophotometer. For Desmodesmus sp. which is prone to settling in the process of amplification culture. By monitoring the change trend of total nitrogen, total phosphorus, pH and electrical conductivity in algae solution system, we determined that the logarithmic growth phase and the best transfer window of Desmodesmus sp. were at 15-20 days. This study can provide basic research methods for the study of microalgae in high altitude areas, and lay a foundation for the later study and application of microalgae.
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Affiliation(s)
- Jinhu Wang
- College of Science, Tibet University, Lhasa City, Tibet Autonomous Region, P. R. China
| | - Qiangying Zhang
- College of Science, Tibet University, Lhasa City, Tibet Autonomous Region, P. R. China
| | - Naijiang Chen
- Lianyungang Food and Drug Inspection and Testing Center, Lianyungang City, Jiangsu Province, P. R. China
| | - Junyu Chen
- College of Science, Tibet University, Lhasa City, Tibet Autonomous Region, P. R. China
| | - Jinna Zhou
- College of Science, Tibet University, Lhasa City, Tibet Autonomous Region, P. R. China
| | - Jing Li
- College of Science, Tibet University, Lhasa City, Tibet Autonomous Region, P. R. China
| | - Yanli Wei
- College of Science, Tibet University, Lhasa City, Tibet Autonomous Region, P. R. China
| | - Duo Bu
- College of Science, Tibet University, Lhasa City, Tibet Autonomous Region, P. R. China
- * E-mail:
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8
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Barati B, Zafar FF, Qian L, Wang S, El-Fatah Abomohra A. Bioenergy characteristics of microalgae under elevated carbon dioxide. FUEL 2022; 321:123958. [DOI: 10.1016/j.fuel.2022.123958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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9
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Chlorophyll fluorescence as a valuable multitool for microalgal biotechnology. Biophys Rev 2022; 14:973-983. [PMID: 36124274 PMCID: PMC9481855 DOI: 10.1007/s12551-022-00951-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 03/26/2022] [Indexed: 01/14/2023] Open
Abstract
Variable fluorescence of chlorophyll (CF) of the photosynthetic apparatus is an ample source of valuable information on physiological condition of photosynthetic organisms. Currently, the most widespread CF-based technique is represented by recording pulse-amplitude modulated (PAM) induction of CF by saturating light. The CF-based monitoring techniques are increasingly employed for characterization of performance and stress resilience of microalgae in microalgal biotechnology. Analysis of CF induction curves reveals the fate of light energy absorbed by photosynthetic apparatus, the proportions of the energy that have been utilized for photochemistry (culture growth), and heat dissipated by photoprotective mechanisms. Hence CF and its derived parameters are an accurate proxy of the metabolic activity of the photosynthetic cell and the engagement of photoprotective mechanisms. This information is a solid foundation for making decisions on the microalgal culture management during the lab-scale and industrial-scale cultivation. Applications of CF and PAM include the monitoring of stressor (high light, nutrient deprivation, extreme temperatures, etc.) effects for assessment of the culture robustness. It also serves as a non-invasive express test for gauging the effect of assorted toxicants in microalgae. This approach is becoming widespread in ecological toxicology and environmental biotechnology, particularly for bioprospecting strains capable of the destruction of dangerous pollutants such as pharmaceuticals. In the review, we discuss the advantages and drawbacks of using CF-based methods for assessment of the culture conditions. Special attention is paid to the potential caveats and applicability of different variations of CF and PAM measurements for solving problems of microalgal biotechnology.
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Singh Chauhan D, Sahoo L, Mohanty K. Maximize microalgal carbon dioxide utilization and lipid productivity by using toxic flue gas compounds as nutrient source. BIORESOURCE TECHNOLOGY 2022; 348:126784. [PMID: 35104656 DOI: 10.1016/j.biortech.2022.126784] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 01/22/2022] [Accepted: 01/24/2022] [Indexed: 06/14/2023]
Abstract
NOx and SOx present in flue gas inhibit microalgal based CO2 mitigation process. In this work, 13 microalgal strains were screened to evaluate their gradual acclimation capacity to toxic flue gas compounds, by testing their growth capability and photosynthetic ability in dissolved flue gas compounds. Six strains out of them were evaluated for their acclimation to bicarbonate and 15% CO2 as sole carbon sources. Two strains, Micractinium pusillum KMC8 and Scenedesmus acutus NCIM5584 were found to accumulate nitrite as fixed nitrogen and showed improved growth performance in photobioreactor upon stepwise acclimation to bisulphite/sulphite. Notably, the strain KMC8 showed a high tolerance and rapidly acclimated dissolved flue gas compounds with higher biomass yield (1.32 g L-1) and neutral lipid accumulation (32%), enhanced CO2 utilization efficiency (3.07%) and CO2 fixation rate (136.79 mg L-1 d-1) post acclimation. KMC8 sustained its stability in biomass and lipid productivity while simultaneously bio-mitigated CO2 under semi-continuous mode.
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Affiliation(s)
- Deepesh Singh Chauhan
- School of Energy Science and Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Lingaraj Sahoo
- School of Energy Science and Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, India; Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Kaustubha Mohanty
- School of Energy Science and Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, India; Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, India.
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Screening High CO 2-Tolerant Oleaginous Microalgae from Genera Desmodesmus and Scenedesmus. Appl Biochem Biotechnol 2020; 192:211-229. [PMID: 32358786 DOI: 10.1007/s12010-020-03319-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 04/23/2020] [Indexed: 01/12/2023]
Abstract
Microalgae from genus Scenedesmus sensu lato (including Desmodesmus and Scenedesmus) were reported to be particularly suitable candidates for CO2 biomitigation. In this study, 16 strains from Scenedesmus sensu lato were obtained from different climate zones of China and their phylogenetic positions were determined. Seven strains out of the 16 showed high CO2 tolerance and grew much faster under 20% CO2 than air condition. Two representatives from genera Desmodesmus (NMD46) and Scenedesmus (HBX310) respectively were selected due to their higher lipid productivity, and the maximum value of 146 mg L-1 day-1 was achieved in NMD46. Triacylglycerols increased with the rising of CO2 levels from 0.04 to 15% in NMD46, while they changed little in HBX310. High CO2 level decreased the polyunsaturated fatty acid content in NMD46 but increased it in HBX310. NMD46 is more suitable for standardized biodiesel production in view of its lipid and fatty acid composition responses to high CO2.
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12
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CO 2 biofixation and fatty acid composition of two indigenous Dunaliella sp. isolates (ABRIINW-CH2 and ABRIINW-SH33) in response to extremely high CO 2 levels. Bioprocess Biosyst Eng 2020; 43:1587-1597. [PMID: 32356214 DOI: 10.1007/s00449-020-02350-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Accepted: 04/09/2020] [Indexed: 12/20/2022]
Abstract
Global warming, as a result of atmospheric CO2 increase, is regarded as an important universal concern. Microalgae are considered as appropriate microorganisms for CO2 assimilation. Here we aimed to investigate carbon biofixation ability of two indigenous isolates of Dunaliella spp. (ABRIINW-CH2 and ABRIINW-SH33) under elevated CO2 concentrations of 10, 20, and 30% (v/v) as well as their lipid content, productivity, and fatty acid profile under adjusted pH conditions. The maximum biomass production and CO2 biofixation rates were obtained under 10% CO2. High CO2 concentrations were favorable for the accumulation of lipids, lipid productivity, and polyunsaturated fatty acids formation. The highest lipid content and lipid productivity was obtained at 10% CO2. The highest fraction of the fatty acids (FA) profile was allocated to omega-3 FAs at 20% CO2. Accordingly, these isolates were able to tolerate extremely high CO2 concentrations and present even enhanced growth as well as formation of valuable products.
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13
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Solovchenko A, Baulina O, Ptushenko O, Gorelova O. Ultrastructural patterns of photoacclimation and photodamage to photosynthetic algae cell under environmental stress. PHYSIOLOGIA PLANTARUM 2019; 166:251-263. [PMID: 30561763 DOI: 10.1111/ppl.12912] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 12/05/2018] [Accepted: 12/17/2018] [Indexed: 05/16/2023]
Abstract
In oxygenic phototrophs including unicellular algae, acclimation to and damage by diverse environmental stresses induce profound changes in the ultrastructural organization of the cell. These alterations reflect acclimation of the photosynthetic apparatus to unfavorable conditions (mainly reduction of the chloroplast and its membranal system) and rewiring of the photo-fixed carbon fluxes in the cell. These changes, eventually pursuing mitigation of the photooxidative damage risk, are manifested by the formation of diverse carbon-rich inclusions. Although the physiological and molecular basis of these processes are well understood, the ultrastructural manifestations of the stress responses are often fragmented and frequently controversial. This minireview attempts to generalize on the ultrastructural patterns accompanying stresses in the photosynthetic cell, involving the concerted rearrangements of its assimilatory and storage compartments. The changes characteristic of normal functioning and emergency reduction of the chloroplast thylakoids under harsh stress are also addressed. Special attention is paid to the manifestations of the engagement of photoprotection via active (energy-dependent non-photochemical quenching) and passive mechanisms (e.g. optical shielding by secondary carotenoids). We also underline the potentially important role of autophagy-like processes and provide a more integral view of ultrastructural rearrangements under stress.
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Affiliation(s)
- Alexei Solovchenko
- Department of Bioengineering, Faculty of Biology, Moscow State University, Moscow, 119234, Russia
- Institute of Agriculture and Technolgy, Peoples Friendship University of Russia (RUDN University), Moscow, 117198, Russia
| | - Olga Baulina
- Department of Bioengineering, Faculty of Biology, Moscow State University, Moscow, 119234, Russia
| | - Oksana Ptushenko
- Faculty of Bioengineering and Bioinformatics, Moscow State University, Moscow, 119991, Russia
| | - Olga Gorelova
- Department of Bioengineering, Faculty of Biology, Moscow State University, Moscow, 119234, Russia
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Suriya narayanan G, kumar G, seepana S, Elankovan R, Premalatha M. Utilization of unfiltered LPG-burner exhaust-gas emission using microalga Coelastrella sp. J CO2 UTIL 2019. [DOI: 10.1016/j.jcou.2018.12.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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Gorelova O, Baulina O, Ismagulova T, Kokabi K, Lobakova E, Selyakh I, Semenova L, Chivkunova O, Karpova O, Scherbakov P, Khozin-Goldberg I, Solovchenko A. Stress-induced changes in the ultrastructure of the photosynthetic apparatus of green microalgae. PROTOPLASMA 2019; 256:261-277. [PMID: 30083788 DOI: 10.1007/s00709-018-1294-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 07/25/2018] [Indexed: 05/08/2023]
Abstract
In photosynthetic organisms including unicellular algae, acclimation to and damage by environmental stresses are readily apparent at the level of the photosynthetic apparatus. Phenotypic manifestations of the stress responses include rapid and dramatic reduction of photosynthetic activity and pigment content aimed at mitigating the risk of photooxidative damage. Although the physiological and molecular mechanisms of these events are well known, the ultrastructural picture of the stress responses is often elusive and frequently controversial. We analyzed an extensive set of transmission electron microscopy images of the microalgal cells obtained across species of Chlorophyta and in a wide range of growth conditions. The results of the analysis allowed us to pinpoint distinct ultrastructural changes typical of normal functioning and emergency reduction of the chloroplast membrane system under high light exposure and/or mineral nutrient starvation. We demonstrate the patterns of the stress-related ultrastructural changes including peculiar thylakoid rearrangements and autophagy-like processes and provide an outlook on their significance for implementation of the stress responses.
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Affiliation(s)
- Olga Gorelova
- Department of Bioengineering, Faculty of Biology, Moscow State University, GSP-1, Moscow, 119234, Russia
| | - Olga Baulina
- Department of Bioengineering, Faculty of Biology, Moscow State University, GSP-1, Moscow, 119234, Russia
| | - Tatiana Ismagulova
- Department of Bioengineering, Faculty of Biology, Moscow State University, GSP-1, Moscow, 119234, Russia
| | - Kamilya Kokabi
- Microalgal Biotechnology Laboratory, The French Associates Institute for Agriculture and Biotechnology for Drylands, The J. Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede-Boqer Campus, 8499000, Midreshet Ben Gurion, Israel
| | - Elena Lobakova
- Department of Bioengineering, Faculty of Biology, Moscow State University, GSP-1, Moscow, 119234, Russia
| | - Irina Selyakh
- Department of Bioengineering, Faculty of Biology, Moscow State University, GSP-1, Moscow, 119234, Russia
| | - Larisa Semenova
- Department of Bioengineering, Faculty of Biology, Moscow State University, GSP-1, Moscow, 119234, Russia
| | - Olga Chivkunova
- Department of Bioengineering, Faculty of Biology, Moscow State University, GSP-1, Moscow, 119234, Russia
| | - Olga Karpova
- Department of Bioengineering, Faculty of Biology, Moscow State University, GSP-1, Moscow, 119234, Russia
| | - Pavel Scherbakov
- Department of Bioengineering, Faculty of Biology, Moscow State University, GSP-1, Moscow, 119234, Russia
| | - Inna Khozin-Goldberg
- Microalgal Biotechnology Laboratory, The French Associates Institute for Agriculture and Biotechnology for Drylands, The J. Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede-Boqer Campus, 8499000, Midreshet Ben Gurion, Israel
| | - Alexei Solovchenko
- Department of Bioengineering, Faculty of Biology, Moscow State University, GSP-1, Moscow, 119234, Russia.
- Peoples Friendship University of Russia (RUDN University), Moscow, 117198, Russia.
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Metabolic acclimation mechanism in microalgae developed for CO2 capture from industrial flue gas. ALGAL RES 2017. [DOI: 10.1016/j.algal.2017.07.029] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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17
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Shebanova A, Ismagulova T, Solovchenko A, Baulina O, Lobakova E, Ivanova A, Moiseenko A, Shaitan K, Polshakov V, Nedbal L, Gorelova O. Versatility of the green microalga cell vacuole function as revealed by analytical transmission electron microscopy. PROTOPLASMA 2017; 254:1323-1340. [PMID: 27677801 DOI: 10.1007/s00709-016-1024-5] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 09/08/2016] [Indexed: 05/22/2023]
Abstract
Vacuole is a multifunctional compartment central to a large number of functions (storage, catabolism, maintenance of the cell homeostasis) in oxygenic phototrophs including microalgae. Still, microalgal cell vacuole is much less studied than that of higher plants although knowledge of the vacuolar structure and function is essential for understanding physiology of nutrition and stress tolerance of microalgae. Here, we combined the advanced analytical and conventional transmission electron microscopy methods to obtain semi-quantitative, spatially resolved at the subcellular level information on elemental composition of the cell vacuoles in several free-living and symbiotic chlorophytes. We obtained a detailed record of the changes in cell and vacuolar ultrastructure in response to environmental stimuli under diverse conditions. We suggested that the vacuolar inclusions could be divided into responsible for storage of phosphorus (mainly in form of polyphosphate) and those accommodating non-protein nitrogen (presumably polyamine) reserves, respectively.The ultrastructural findings, together with the data on elemental composition of different cell compartments, allowed us to speculate on the role of the vacuolar membrane in the biosynthesis and sequestration of polyphosphate. We also describe the ultrastructural evidence of possible involvement of the tonoplast in the membrane lipid turnover and exchange of energy and metabolites between chloroplasts and mitochondria. These processes might play a significant role in acclimation in different stresses including nitrogen starvation and extremely high level of CO2 and might also be of importance for microalgal biotechnology. Advantages and limitations of application of analytical electron microscopy to biosamples such as microalgal cells are discussed.
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Affiliation(s)
| | | | - Alexei Solovchenko
- Lomonosov Moscow State University, Moscow, Russia.
- Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, Moscow, Russia.
- Faculty of Biology, Moscow State University, Leninskie Gori 1/12, 119234, GSP-1 Moscow, Russia.
| | - Olga Baulina
- Lomonosov Moscow State University, Moscow, Russia
| | | | - Alexandra Ivanova
- Komarov Botanical Institute, Russian Academy of Sciences, St. Petersburg, Russia
- St. Petersburg State University, St. Petersburg, Russia
| | | | | | - Vladimir Polshakov
- Faculty of fundamental medicine, Lomonosov Moscow State University, Moscow, Russia
| | - Ladislav Nedbal
- Institute of Bio- and Geosciences / Plant Sciences (IBG-2), Forschungszentrum Jülich, Jülich, Germany
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Gabbasova DT, Matorin DN, Konyukhov IV, Seifullina NK, Zayadan BK. Effect of chromate ions on marine microalgae Phaeodactylum tricornutum. Microbiology (Reading) 2017. [DOI: 10.1134/s0026261717010052] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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19
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Ptushenko VV, Solovchenko AE. Tolerance of the photosynthetic apparatus to acidification of the growth medium as a possible determinant of CO2-tolerance of the symbiotic microalga Desmodesmus sp. IPPAS-2014. BIOCHEMISTRY (MOSCOW) 2016; 81:1531-1537. [DOI: 10.1134/s0006297916120142] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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