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Torbati S, Atashbar Kangarloei B, Asalpisheh Z. Fluoranthene biotreatment using prominent freshwater microalgae: physiological responses of microalgae and artificial neural network modeling of the bioremoval process. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2024; 26:1038-1048. [PMID: 38084668 DOI: 10.1080/15226514.2023.2288900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Due to the intensified industrial activities and other anthropogenic actions, contamination of polycyclic aromatic hydrocarbons (PAHs) has been growing at an alarming rate, turning in to a serious environmental concern. Bioremediation, as an eco-friendly and sustainable removal technology, can be used by organisms to reduce the resulting contaminations. In the present study, the ability of Tetradesmus obliquus to remove of fluoranthene (FLA) was evaluated. It was confirmed that FLA removal efficiency was managed by various environmental parameters and pH was found to be one of the most important influencial factors. The reusability of the algae in long-term repetitive operations confirmed the occurrence of biodegradation along with other natural attenuation and 10 intermediate compounds were identified in the FLA biodegradation pathway by GC-MS. As a result of physiological assays, induced antioxidant enzymes activities and augmentation of phenol and flavonoids contents, after the treatment of the microalgae by a high concentration of FLA, confirmed the ability of the microalgae to upregulate its antioxidant defense system in response to the toxic effects of FLA. An artificial neural network (ANN) model was then developed to predict FLA biodegradation efficiency and the appropriate predictive performance of ANN was confirmed by comparing the experimental FLA removal efficiency with its predicted amounts (R2 = 0.99).
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Affiliation(s)
- Samaneh Torbati
- Department of Ecology and Aquatic Stocks Management, Artemia and Aquaculture Research Institute, Urmia University, Urmia, Iran
| | - Behrouz Atashbar Kangarloei
- Department of Ecology and Aquatic Stocks Management, Artemia and Aquaculture Research Institute, Urmia University, Urmia, Iran
| | - Zahra Asalpisheh
- Department of Ecology and Aquatic Stocks Management, Artemia and Aquaculture Research Institute, Urmia University, Urmia, Iran
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2
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Torbati S, Yekan Motlagh P, Khataee A. Toxicity of ZnFe-SO 4 layered double hydroxide in Tetradesmus obliquus and evaluation of some physiological responses of the microalgae for stress management. Sci Rep 2024; 14:975. [PMID: 38200201 PMCID: PMC10782017 DOI: 10.1038/s41598-023-51042-y] [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: 08/19/2023] [Accepted: 12/29/2023] [Indexed: 01/12/2024] Open
Abstract
Layered double hydroxides (LDHs), regarding their physical and structural properties, have different and wide applications industry and their increasing use may raise ecological and human health concerns. However, the potential toxicity mechanisms of LDHs in different organisms are still unclear. In the present work, after synthesizing of ZnFe-SO4 LDH and studying of its characterization by XRD, FT-IR, SEM, EDX-mapping, TEM and Raman, its toxicity in Tetradesmus obliquus was evaluated. According to experimental results, the growth of the algae and content of photosynthetic pigments were significantly decreased after treatment with 100 mg/L of ZnFe-SO4 LDH. The high dose exposure to the LDH also inhibited the activity of SOD and POD enzymes, possibly due to the LDH- catalyzed reactive oxygen species production. In addition, lipid peroxidation and the content of phenolic compounds, as no-enzymatic antioxidants were increased by enhancement of the LDH concentration. The rise of phenol, flavonoids and MDA contents could be regarded as some manifestations and responses to the toxic effects of the contaminant in the algae cells. The results provided a better understanding of the undesirable effects and toxicity of LDHs in aquatic organisms.
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Affiliation(s)
- Samaneh Torbati
- Department of Ecology and Aquatic Stocks Management, Artemia and Aquacultur Research Institute, Urmia University, Urmia, 5756151818, Iran.
| | - Parisa Yekan Motlagh
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, 5166616471, Iran
| | - Alireza Khataee
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, 5166616471, Iran.
- Department of Chemical Engineering, Istanbul Technical University, 34469, Maslak, Istanbul, Turkey.
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3
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Liao L, Chen B, Deng K, He Q, Lin G, Guo J, Yan P. Effect of the N-hexanoyl-L-homoserine Lactone on the Carbon Fixation Capacity of the Algae-Bacteria System. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:5047. [PMID: 36981956 PMCID: PMC10049018 DOI: 10.3390/ijerph20065047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 03/08/2023] [Accepted: 03/10/2023] [Indexed: 06/18/2023]
Abstract
Algae-bacteria systems are used widely in wastewater treatment. N-hexanoyl-L-homoserine lactone (AHL) plays an important role in algal-bacteria communication. However, little study has been conducted on the ability of AHLs to regulate algal metabolism and the carbon fixation ability, especially in algae-bacteria system. In this study, we used the Microcystis aeruginosa + Staphylococcus ureilyticus strain as a algae-bacteria system. The results showed that 10 ng/L C6-HSL effectively increased the chlorophyll-a (Chl-a) concentration and carbon fixation enzyme activities in the algae-bacteria group and algae group, in which Chl-a, carbonic anhydrase activity, and Rubisco enzyme increased by 40% and 21%, 56.4% and 137.65%, and 66.6% and 10.2%, respectively, in the algae-bacteria group and algae group, respectively. The carbon dioxide concentration mechanism (CCM) model showed that C6-HSL increased the carbon fixation rate of the algae-bacteria group by increasing the CO2 transport rate in the water and the intracellular CO2 concentration. Furthermore, the addition of C6-HSL promoted the synthesis and secretion of the organic matter of algae, which provided biogenic substances for bacteria in the system. This influenced the metabolic pathways and products of bacteria and finally fed back to the algae. This study provided a strategy to enhance the carbon fixation rate of algae-bacteria consortium based on quorum sensing.
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Affiliation(s)
- Lei Liao
- College of Environment and Ecology, Chongqing University, Chongqing 400045, China
- Key Laboratory of Ecological Environment of Three Gorges Reservoir Area, Ministry of Education, Chongqing 400045, China
| | - Bin Chen
- College of Environment and Ecology, Chongqing University, Chongqing 400045, China
- Key Laboratory of Ecological Environment of Three Gorges Reservoir Area, Ministry of Education, Chongqing 400045, China
| | - Kaikai Deng
- College of Environment and Ecology, Chongqing University, Chongqing 400045, China
- Key Laboratory of Ecological Environment of Three Gorges Reservoir Area, Ministry of Education, Chongqing 400045, China
| | - Qiang He
- College of Environment and Ecology, Chongqing University, Chongqing 400045, China
- Key Laboratory of Ecological Environment of Three Gorges Reservoir Area, Ministry of Education, Chongqing 400045, China
| | - Guijiao Lin
- College of Environment and Ecology, Chongqing University, Chongqing 400045, China
- Key Laboratory of Ecological Environment of Three Gorges Reservoir Area, Ministry of Education, Chongqing 400045, China
| | - Jinsong Guo
- College of Environment and Ecology, Chongqing University, Chongqing 400045, China
- Key Laboratory of Ecological Environment of Three Gorges Reservoir Area, Ministry of Education, Chongqing 400045, China
| | - Peng Yan
- College of Environment and Ecology, Chongqing University, Chongqing 400045, China
- Key Laboratory of Ecological Environment of Three Gorges Reservoir Area, Ministry of Education, Chongqing 400045, China
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Sangela V, Kumar M, Choudhary S, Gour VS, Meena M, Vinayak V, Harish. Effect of nitrogen, phosphorus and sodium bicarbonate on lipid production and fatty acid profile in Coelastrella terrestris. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2022. [DOI: 10.1016/j.bcab.2022.102518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Jain R, Mishra S, Mohanty K. Cattle wastewater as a low-cost supplement augmenting microalgal biomass under batch and fed-batch conditions. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 304:114213. [PMID: 34896802 DOI: 10.1016/j.jenvman.2021.114213] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Revised: 11/16/2021] [Accepted: 11/28/2021] [Indexed: 06/14/2023]
Abstract
The utilization of costly chemical fertilizers and large freshwater requirements make the microalgae cultivation process uneconomical and highly unsustainable. To address this challenge, the present study aimed to integrate cattle wastewater (CW) (alternate for fertilizers) with domestic sewage wastewater (DSW) (substitute for freshwater) to cultivate Chlorella thermophile. To maximize the biomass yield, in-depth nutrient consumption patterns in both batch and fed-batch cultivation conditions were analyzed. Out of the eight (1%-4.5%) different CW feed concentrations tested during the batch cultivation, 2.5% CW set gave the highest biomass yield (2.17 g L-1), which was almost double the yield obtained using Bold Basal Medium (1.24 g L-1) and DSW without any CW addition (1.22 g L-1). However, the biomass yield declined with CW> 2.5%, and the ammonium (NH4+) inhibitory effect was observed. To address the (NH4+) toxicity challenge and further enhance the biomass yield, fed-batch experiments were designed with an intermittent CW feeding based on nutrient (NH4+) consumption pattern. The fed-batch cultivation resulted in twofold increased biomass yield (4.52 g L-1) in comparison to the batch process. The nutrient consumption pattern inferred that the (NH4+) concentration greater than 600 mg L-1 during the logarithmic phase was inhibitory for Chlorella thermophila cells. On biomass characterization, a significant improvement in protein content with CW addition was observed. The FAME analysis of the derived lipid stated its competitive biofuel quality with up-gradation of C:16 and C:18 groups. Based on the obtained results, projection analysis for an integrated rural model demonstrated the technology's potential for sustainable water management with valuable resource recovery.
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Affiliation(s)
- Rahul Jain
- School of Energy Science and Engineering, Indian Institute of Technology Guwahati, Guwahati, 781039, India
| | - Sanjeev Mishra
- School of Energy Science and Engineering, 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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6
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Enwereuzoh UO, Harding KG, Low M. Fish farm effluent as a nutrient source for algae biomass cultivation. S AFR J SCI 2021. [DOI: 10.17159/sajs.2021/8694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
One of the challenges of microalgae biotechnology is the cost of growth media nutrients, with microalgae consuming enormous quantities of fertilisers, more than other oil crops. The traditional use of synthetic fertilisers in mass cultivation of microalgae is associated with rising prices of crude oil and competition from traditional agriculture. The fact that fish farm wastewater (FFW) nutrients are released in the form preferred by microalgae (NH3 for nitrogen and PO4-3 for phosphate), and the ability of microalgae to use nitrogen from different sources, can be exploited by using fish farm effluent rich in nutrients (nitrogen and phosphorus) in the cultivation of cheaper microalgae biomass for production of biodiesel. The cultivation of algae biomass in FFW will also serve as wastewater treatment. We reviewed the benefits and potential of fish effluent in algae cultivation for the production of biodiesel. Microalgae can utilise nutrients in FFW for different applications desirable for the production of biomass, including the accumulation of lipids, and produce a fuel with desirable properties. Also, treating wastewater and reducing demand for fresh water are advantageous. The high lipid content and comparable biodiesel properties of Chlorella sorokiniana and Scenedesmus obliquus make both species viable for FFW cultivation for biodiesel production.
Significance:
The cost associated with microalgae growth media nutrients can be saved by using fish farm wastewater, which contains nutrients (nitrogen and phosphorus) suitable for microalgae cultivation.
Fish farm wastewater has lower nutrient concentrations when compared to standard growth media suitable for higher lipid accumulation.
Microalgae used as a biodiesel feedstock, cultivated in fish farm wastewater, has added benefits, including wastewater treatment.
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Arun J, Gopinath KP, Sivaramakrishnan R, SundarRajan P, Malolan R, Pugazhendhi A. Technical insights into the production of green fuel from CO 2 sequestered algal biomass: A conceptual review on green energy. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 755:142636. [PMID: 33065504 DOI: 10.1016/j.scitotenv.2020.142636] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 09/22/2020] [Accepted: 09/25/2020] [Indexed: 06/11/2023]
Abstract
Algae a promising energy reserve due to its adaptability, cheap source, sustainability and it's growth ability in wastewater with efficient sequestration of industrial carbon dioxide. This review summarizes the pathways available for biofuel production from carbon sequestered algae biomass. In this regard, this review focuses on microalgae and its cultivation in wastewater with CO2 sequestration. Conversion of carbon sequestered biomass into bio-fuels via thermo-chemical routes and its engine emission properties. Energy perspective of green gaseous biofuels in near future. This review revealed that algae was the pre-dominant CO2 sequester than terrestrial plants in an eco-friendly and economical way with simultaneous wastewater remediation. Hydrothermal liquefaction of algae biomass was the most preferred mode for biofuel generation than pyrolysis due to high moisture content. The algae based fuels exhibit less greenhouse gases emission and higher energy value. This review helps the researchers, environmentalists and industrialists to evaluate the impact of algae based bio-energy towards green energy and environment.
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Affiliation(s)
- Jayaseelan Arun
- Center for Waste Management - 'International Research Centre', Sathyabama Institute of Science and Technology, Jeppiaar Nagar (OMR), Chennai 600 119, Tamil Nadu, India.
| | | | - Ramachandran Sivaramakrishnan
- Laboratory of Cyanobacterial Biotechnology, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - PanneerSelvam SundarRajan
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam 603110, Tamil Nadu, India
| | - Rajagopal Malolan
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam 603110, Tamil Nadu, India
| | - Arivalagan Pugazhendhi
- Innovative Green Product Synthesis and Renewable Environment Development Research Group, Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Viet Nam.
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8
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Romero N, Visentini FF, Márquez VE, Santiago LG, Castro GR, Gagneten AM. Physiological and morphological responses of green microalgae Chlorella vulgaris to silver nanoparticles. ENVIRONMENTAL RESEARCH 2020; 189:109857. [PMID: 32777636 DOI: 10.1016/j.envres.2020.109857] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 05/29/2020] [Accepted: 06/12/2020] [Indexed: 06/11/2023]
Abstract
The toxic effects of silver nanoparticles (AgNPs) on the physiology and morphology of the green microalga Chlorella vulgaris were studied. AgNPs were characterized by particle size distribution, ζ potential measurement, and atomic force microscopy (AFM). Chlorella vulgaris was exposed to 90-1440 μg/L of AgNPs range in Bold's Basal Medium for 96 h. The inhibition of algae growth rate and changes in the concentrations of chlorophyll-a, chlorophyll-b, pheophytin, and carotenoids was determined at the beginning and end of the trial. Cell diameter and volume, carbohydrate, total lipids, and protein content were also determined. Our data strongly suggest that the toxic effects of the AgNPs resulted in concentration and time-dependent. AgNPs altered C. vulgaris growth kinetics and cell metabolism expressed in photosynthetic pigments and biochemical composition. Our study confirmed the cytotoxicity of AgNPs through the algal growth inhibition with an EC50 value of 110 μg/L. Also, changes of chlorophyll-a, chlorophyll-b, pheophytin, and carotenoids concentrations were observed associated with a color shift from green to pale brown of algae cultures exposed to AgNPs for 96 h. Furthermore, algae cell concentration, diameter, and volume, plus total lipid, protein, and carbohydrates contents in the presence of AgNPs, were significantly altered compared to untreated cells. In synthesis, this study highlighted AgNPs toxic effects on morphological and physiological traits of C. vulgaris and warns about possible impacts on energy flow and aquatic food web structure, and on the transfer efficiency of energy to higher trophic levels.
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Affiliation(s)
- Natalí Romero
- Laboratorio de Ecotoxicología, Facultad de Humanidades y Ciencias, Universidad Nacional del Litoral, Ciudad Universitaria - Paraje El Pozo S/n (3000), Santa Fe, Argentina; CONICET, Predio CONICET "Dr. Alberto Cassano", Colectora Ruta Nac. Nº 168, Km. 0, Paraje El Pozo (3000), Santa Fe, Argentina
| | - Flavia F Visentini
- CONICET, Predio CONICET "Dr. Alberto Cassano", Colectora Ruta Nac. Nº 168, Km. 0, Paraje El Pozo (3000), Santa Fe, Argentina; Área de Biocoloides y Nanotecnología, Instituto de Tecnología de Alimentos (ITA), Facultad de Ingeniería Química (FIQ), Universidad Nacional del Litoral (UNL), Santiago Del Estero 2829, Santa Fe, Argentina
| | - Vanina E Márquez
- Laboratorio de Fermentaciones, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Ciudad Universitaria - Paraje El Pozo S/n (3000), Santa Fe, Argentina
| | - Liliana G Santiago
- CONICET, Predio CONICET "Dr. Alberto Cassano", Colectora Ruta Nac. Nº 168, Km. 0, Paraje El Pozo (3000), Santa Fe, Argentina; Área de Biocoloides y Nanotecnología, Instituto de Tecnología de Alimentos (ITA), Facultad de Ingeniería Química (FIQ), Universidad Nacional del Litoral (UNL), Santiago Del Estero 2829, Santa Fe, Argentina
| | - Guillermo R Castro
- Laboratorio de Nanobiomateriales, CINDEFI - Departamento de Química - Facultad de Ciencias Exactas, Universidad Nacional de La Plata - CONICET (CCT La Plata), Calle 50 Nº 227, La Plata, 1900, Buenos Aires, Argentina
| | - Ana M Gagneten
- Laboratorio de Ecotoxicología, Facultad de Humanidades y Ciencias, Universidad Nacional del Litoral, Ciudad Universitaria - Paraje El Pozo S/n (3000), Santa Fe, Argentina.
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Azizi M, Moteshafi H, Hashemi M. Distinctive nutrient designs using statistical approach coupled with light feeding strategy to improve the Haematococcus pluvialis growth performance and astaxanthin accumulation. BIORESOURCE TECHNOLOGY 2020; 300:122594. [PMID: 31901774 DOI: 10.1016/j.biortech.2019.122594] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 12/07/2019] [Accepted: 12/09/2019] [Indexed: 06/10/2023]
Abstract
The optimization of the BG-11 culture medium nutrients using complex statistical design followed by incremental illumination was planned to stimulate the Haematococcus pluvialis growth and astaxanthin accumulation. Based on the Plackett-Burman design results, MgSO4·7H2O, H3BO3, and Na2CO3 were identified as critical components to improve the biomass and astaxanthin productivity. Using central composite design, their initial critical concentrations in the green stage were found as 57.5, 6.2 and 53.0 mg/L, while for the red stage, the 138.3, 8.5 and 41.0 mg/L, recorded as optimum respectively. Using the optimum media, growth and astaxanthin accumulation at the end of the phototrophic and photoinduction stages were boosted by 17 and 54% respectively. The results of scale-up coupled with incremental illumination in phototrophic stage revealed the biomass and astaxanthin concentration improved 50% and 60% over the BG-11 media under constant light intensity. Also, different optimum culture medium formula for green and red stages was proposed.
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Affiliation(s)
- Majid Azizi
- Microbial Biotechnology Department, Agricultural Biotechnology Research Institute of Iran (ABRII), Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
| | - Hadis Moteshafi
- Microbial Biotechnology Department, Agricultural Biotechnology Research Institute of Iran (ABRII), Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
| | - Maryam Hashemi
- Microbial Biotechnology Department, Agricultural Biotechnology Research Institute of Iran (ABRII), Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran.
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Bacova R, Klejdus B, Ryant P, Cernei N, Adam V, Huska D. The effects of 5-azacytidine and cadmium on global 5-methylcytosine content and secondary metabolites in the freshwater microalgae Chlamydomonas reinhardtii and Scenedesmus quadricauda. JOURNAL OF PHYCOLOGY 2019; 55:329-342. [PMID: 30506677 DOI: 10.1111/jpy.12819] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Accepted: 10/22/2018] [Indexed: 06/09/2023]
Abstract
Epigenetic changes are important mechanisms in the regulation of chromatin structure and gene expression. Cytosine methylation is one of the major epigenetic modifications, mediated by DNA methyltransferases, which transfer methyl groups from S-adenosyl-L-methionine (SAM) to the fifth carbon of cytosine. Various external environmental conditions can change the global hypo/hypermethylation pattern of DNA. These alterations may affect the organism's response to stress conditions. In this study, for the first time, we investigated the effects of 5-azacytidine, a DNA methyltransferase inhibitor, and cadmium, a toxic metal and environmental pollutant, on the growth, biosynthesis of secondary metabolites (phenols, flavonoids, carotenoids), SAM, S-adenosylhomocysteine, 5'-methylthioadenosine and global 5-methylcytosine (5-mC) in the green microalgae Chlamydomonas reinhardtii and Scenedesmus quadricauda. The studied species showed major differences in 5-mC content, secondary metabolite content, and antioxidant activity. Cadmium increased GSH (glutathione) content in C. reinhardtii by 60% whereas 5-azacytidine did not affect GSH. The biosynthesis of GSH in S. quadricauda in response to the stressors was the opposite. Global 5-mC content of C. reinhardtii was 1%-1.5%, and the content in S. quadricauda was 3.5%. Amount of some investigated methionine cycle metabolites (SAM, S-adenosyl homocysteine [SAH], methionine) in S. quadricauda distinctly exceeded C. reinhardtii as well. However, chlorophylls a and b, carotenoids, total phenolic content, total flavonoid content and, antioxidant activity were significantly higher in C. reinhardtii than S. quadricauda. Therefore, in further studies it would be advisable to verify whether methylation of cytosine affects the expression of genes encoding certain secondary metabolites.
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Affiliation(s)
- Romana Bacova
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemědělská 1, 613 00, Brno, Czech Republic
| | - Borivoj Klejdus
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemědělská 1, 613 00, Brno, Czech Republic
- Central European Institute of Technology, Mendel University in Brno, Zemedelska 1, CZ-613 00, Brno, Czech Republic
| | - Pavel Ryant
- Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, Mendel University in Brno, Zemědělská 1, 613 00, Brno, Czech Republic
| | - Natalia Cernei
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemědělská 1, 613 00, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Purkyňova 656/123, Brno, Czech Republic
| | - Vojtech Adam
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemědělská 1, 613 00, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Purkyňova 656/123, Brno, Czech Republic
| | - Dalibor Huska
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemědělská 1, 613 00, Brno, Czech Republic
- Central European Institute of Technology, Brno University of Technology, Purkyňova 656/123, Brno, Czech Republic
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11
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Zhou H, Chen X, Liu X, Xuan Y, Hu T. Effects and control of metal nutrients and species on Microcystis aeruginosa growth and bloom. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2019; 91:21-31. [PMID: 30682229 DOI: 10.2175/106143017x15131012188303] [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: 04/20/2018] [Revised: 06/09/2018] [Accepted: 07/06/2018] [Indexed: 06/09/2023]
Abstract
The effects and control of typical metal nutrients, copper, iron, and zinc, on the growth and bloom of Microcystis aeruginosa were investigated with a series of flask-shaking tests. The optimal concentrations of copper, iron, and zinc for algal growth were 0.001, 3-12, and 0.05 mg/L, respectively. The order of toxicity to the alga was Cu > Zn > Fe. The effects of the species, for a trace metal at the same concentrations, on the growth of M. aeruginosa were relatively remarkable. Ionic and complexation species induced more algal growth than the carbonate and sulfide-bound species. Changes in copper concentration and iron species were adopted to adjust and control the bloom of M. aeruginosa. Increases in copper concentrations significantly suppressed the M. aeruginosa bloom. The growth rate of M. aeruginosa slowed significantly when ionic iron was replaced with sulfide-bound iron, and the control of bloom was remarkable. PRACTITIONER POINTS: Using trace metal nutrient species and concentration to regulate and control algal growth and bloom may pave another way for the management of cyanobacterial bloom.
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Affiliation(s)
- Haidong Zhou
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, China
| | - Xiaomeng Chen
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, China
| | - Xiaojing Liu
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, China
| | - Yumei Xuan
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, China
| | - Tao Hu
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai, China
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12
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del Rio-Chanona EA, Liu J, Wagner JL, Zhang D, Meng Y, Xue S, Shah N. Dynamic modeling of green algae cultivation in a photobioreactor for sustainable biodiesel production. Biotechnol Bioeng 2017; 115:359-370. [DOI: 10.1002/bit.26483] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 10/25/2017] [Accepted: 10/26/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Ehecatl A. del Rio-Chanona
- Marine Bioengineering Group, Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian China
- University of Chinese Academy of Sciences; Beijing China
| | - Jiao Liu
- Centre for Process Systems Engineering, Imperial College London; South Kensington Campus; London UK
- Department of Chemical Engineering, Imperial College London; South Kensington Campus; London UK
| | | | - Dongda Zhang
- Marine Bioengineering Group, Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian China
- University of Chinese Academy of Sciences; Beijing China
| | - Yingying Meng
- Centre for Process Systems Engineering, Imperial College London; South Kensington Campus; London UK
- Department of Chemical Engineering, Imperial College London; South Kensington Campus; London UK
| | - Song Xue
- Centre for Process Systems Engineering, Imperial College London; South Kensington Campus; London UK
| | - Nilay Shah
- Marine Bioengineering Group, Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian China
- University of Chinese Academy of Sciences; Beijing China
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