Biostimulant Capacity of Chlorella and Chlamydopodium Species Produced Using Wastewater and Centrate
The aim of the present study was to assess the potential of producing four microalgal strains using secondary-treated urban wastewater supplemented with centrate, and to evaluate the biostimulant effects of several microalgal extracts obtained using water and sonication. Four strains were studied: C...
| Main Authors: | , , , , , |
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| Format: | info:eu-repo/semantics/article |
| Language: | English |
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MDPI
2022
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| Online Access: | http://hdl.handle.net/10835/13923 |
| _version_ | 1789406654867963904 |
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| author | Morillas España, Ainoa Ruiz-Nieto, Ángela Lafarga, Tomás Acién Fernández, Francisco Gabriel Arbib, Zouhayr González López, Cynthia Victoria |
| author_facet | Morillas España, Ainoa Ruiz-Nieto, Ángela Lafarga, Tomás Acién Fernández, Francisco Gabriel Arbib, Zouhayr González López, Cynthia Victoria |
| author_sort | Morillas España, Ainoa |
| collection | DSpace |
| description | The aim of the present study was to assess the potential of producing four microalgal strains using secondary-treated urban wastewater supplemented with centrate, and to evaluate the biostimulant effects of several microalgal extracts obtained using water and sonication. Four strains were studied: Chlorella vulgaris UAL-1, Chlorella sp. UAL-2, Chlorella vulgaris UAL-3, and Chlamydopodium fusiforme UAL-4. The highest biomass productivity was found for C. fusiforme, with a value of 0.38 ± 0.01 g·L−1·day−1. C. vulgaris UAL-1 achieved a biomass productivity of 0.31 ± 0.03 g·L−1·day−1 (the highest for the Chlorella genus), while the N-NH4+, N-NO3−, and P-PO43− removal capacities of this strain were 51.9 ± 2.4, 0.8 ± 0.1, and 5.7 ± 0.3 mg·L−1·day−1, respectively. C. vulgaris UAL-1 showed the greatest potential for use as a biostimulant—when used at a concentration of 0.1 g·L−1, it increased the germination index of watercress seeds by 3.5%. At concentrations of 0.5 and 2.0 g·L−1, the biomass from this microalga promoted adventitious root formation in soybean seeds by 220% and 493%, respectively. The cucumber expansion test suggested a cytokinin-like effect from C. vulgaris UAL-1; it was also the only strain that promoted the formation of chlorophylls in wheat leaves. Overall, the results of the present study suggest the potential of producing C. vulgaris UAL-1 using centrate and wastewater as well as the potential utilisation of its biomass to develop high-value biostimulants. |
| format | info:eu-repo/semantics/article |
| id | oai:repositorio.ual.es:10835-13923 |
| institution | Universidad de Cuenca |
| language | English |
| publishDate | 2022 |
| publisher | MDPI |
| record_format | dspace |
| spelling | oai:repositorio.ual.es:10835-139232023-04-12T19:35:30Z Biostimulant Capacity of Chlorella and Chlamydopodium Species Produced Using Wastewater and Centrate Morillas España, Ainoa Ruiz-Nieto, Ángela Lafarga, Tomás Acién Fernández, Francisco Gabriel Arbib, Zouhayr González López, Cynthia Victoria microalgae biostimulants gibberellins auxins wastewater biomass The aim of the present study was to assess the potential of producing four microalgal strains using secondary-treated urban wastewater supplemented with centrate, and to evaluate the biostimulant effects of several microalgal extracts obtained using water and sonication. Four strains were studied: Chlorella vulgaris UAL-1, Chlorella sp. UAL-2, Chlorella vulgaris UAL-3, and Chlamydopodium fusiforme UAL-4. The highest biomass productivity was found for C. fusiforme, with a value of 0.38 ± 0.01 g·L−1·day−1. C. vulgaris UAL-1 achieved a biomass productivity of 0.31 ± 0.03 g·L−1·day−1 (the highest for the Chlorella genus), while the N-NH4+, N-NO3−, and P-PO43− removal capacities of this strain were 51.9 ± 2.4, 0.8 ± 0.1, and 5.7 ± 0.3 mg·L−1·day−1, respectively. C. vulgaris UAL-1 showed the greatest potential for use as a biostimulant—when used at a concentration of 0.1 g·L−1, it increased the germination index of watercress seeds by 3.5%. At concentrations of 0.5 and 2.0 g·L−1, the biomass from this microalga promoted adventitious root formation in soybean seeds by 220% and 493%, respectively. The cucumber expansion test suggested a cytokinin-like effect from C. vulgaris UAL-1; it was also the only strain that promoted the formation of chlorophylls in wheat leaves. Overall, the results of the present study suggest the potential of producing C. vulgaris UAL-1 using centrate and wastewater as well as the potential utilisation of its biomass to develop high-value biostimulants. 2022-07-27T10:33:01Z 2022-07-27T10:33:01Z 2022-07-20 info:eu-repo/semantics/article 2079-7737 http://hdl.handle.net/10835/13923 10.3390/biology11071086 en https://www.mdpi.com/2079-7737/11/7/1086 Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess MDPI |
| spellingShingle | microalgae biostimulants gibberellins auxins wastewater biomass Morillas España, Ainoa Ruiz-Nieto, Ángela Lafarga, Tomás Acién Fernández, Francisco Gabriel Arbib, Zouhayr González López, Cynthia Victoria Biostimulant Capacity of Chlorella and Chlamydopodium Species Produced Using Wastewater and Centrate |
| title | Biostimulant Capacity of Chlorella and Chlamydopodium Species Produced Using Wastewater and Centrate |
| title_full | Biostimulant Capacity of Chlorella and Chlamydopodium Species Produced Using Wastewater and Centrate |
| title_fullStr | Biostimulant Capacity of Chlorella and Chlamydopodium Species Produced Using Wastewater and Centrate |
| title_full_unstemmed | Biostimulant Capacity of Chlorella and Chlamydopodium Species Produced Using Wastewater and Centrate |
| title_short | Biostimulant Capacity of Chlorella and Chlamydopodium Species Produced Using Wastewater and Centrate |
| title_sort | biostimulant capacity of chlorella and chlamydopodium species produced using wastewater and centrate |
| topic | microalgae biostimulants gibberellins auxins wastewater biomass |
| url | http://hdl.handle.net/10835/13923 |
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