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| Format: | Artículo científico |
| Sprache: | en |
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Microorganisms
2026
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| Online-Zugang: | https://pubmed.ncbi.nlm.nih.gov/41900342/ |
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| author | Ntzouvaras, Alexandros Koletti, Aikaterini Zografaki, Maria Eleftheria Marka, Sofia Skliros, Dimitrios Vasilakis, Gabriel Karavidas, Ioannis Koukouvinis, Adonis Konstantinos Efrose, Rodica C Kalloniati, Chrysanthi Tzovenis, Ioannis Flemetakis, Emmanouil |
| author_facet | Ntzouvaras, Alexandros Koletti, Aikaterini Zografaki, Maria Eleftheria Marka, Sofia Skliros, Dimitrios Vasilakis, Gabriel Karavidas, Ioannis Koukouvinis, Adonis Konstantinos Efrose, Rodica C Kalloniati, Chrysanthi Tzovenis, Ioannis Flemetakis, Emmanouil Ntzouvaras, Alexandros Koletti, Aikaterini Zografaki, Maria Eleftheria Marka, Sofia Skliros, Dimitrios Vasilakis, Gabriel Karavidas, Ioannis Koukouvinis, Adonis Konstantinos Efrose, Rodica C Kalloniati, Chrysanthi Tzovenis, Ioannis Flemetakis, Emmanouil |
| collection | PubMed - marine biology |
| contents | Isolation and Characterization of Microalgae Isolates from Hydroponic Effluent Water: Metagenomics and Biotechnological Insights. Ntzouvaras, Alexandros Koletti, Aikaterini Zografaki, Maria Eleftheria Marka, Sofia Skliros, Dimitrios Vasilakis, Gabriel Karavidas, Ioannis Koukouvinis, Adonis Konstantinos Efrose, Rodica C Kalloniati, Chrysanthi Tzovenis, Ioannis Flemetakis, Emmanouil Hydroponic systems are gaining prominence in sustainable agriculture, yet their nutrient-rich effluents remain an underexplored source of microbial biodiversity with potential biotechnological interest. In this study, shotgun metagenomic sequencing was employed to profile, with a high taxonomic resolution, the photosynthetic microbial community in hydroponic effluent before and after a natural algal bloom, revealing pronounced shifts in microbial composition. Notably, relative abundance increased sixfold for and tenfold for . Four dominant microalgal strains (PR1-PR4) were subsequently isolated and characterized through integrative morphological and molecular taxonomy, with phylogenetic analyses based on four genetic markers (18S rRNA, ITS, and ) confirming that each isolate represents a distinct lineage within Chlorophyceae families, including sp., sp., and sp. Growth kinetics under three temperature regimes, typical of Greek environmental conditions from spring to autumn (15 °C, 23 °C, 32 °C), demonstrated broad ecological plasticity and rapid biomass production, highlighting strains with strong adaptive resilience. Biochemical profiling of the isolates revealed significant inter-strain differences in primary and secondary metabolite content, including proteins (up to 43% DW), lipids (up to 31% DW), carbohydrates (up to 44% DW), photosynthetic pigments, phenolics, flavonoids, and antioxidant activity. The observed metabolic diversity of autochthonous microalgal strains from hydroponic environments, combined with their high growth rates, underscores their potential for applications in bioremediation, bioenergy, and the development of value-added products within a circular bioeconomy framework. |
| format | Artículo científico |
| id | pubmed_41900342 |
| institution | PubMed |
| language | en |
| publishDate | 2026 |
| publisher | Microorganisms |
| record_format | pubmed |
| spellingShingle | Isolation and Characterization of Microalgae Isolates from Hydroponic Effluent Water: Metagenomics and Biotechnological Insights. Ntzouvaras, Alexandros Koletti, Aikaterini Zografaki, Maria Eleftheria Marka, Sofia Skliros, Dimitrios Vasilakis, Gabriel Karavidas, Ioannis Koukouvinis, Adonis Konstantinos Efrose, Rodica C Kalloniati, Chrysanthi Tzovenis, Ioannis Flemetakis, Emmanouil Isolation and Characterization of Microalgae Isolates from Hydroponic Effluent Water: Metagenomics and Biotechnological Insights. Ntzouvaras, Alexandros Koletti, Aikaterini Zografaki, Maria Eleftheria Marka, Sofia Skliros, Dimitrios Vasilakis, Gabriel Karavidas, Ioannis Koukouvinis, Adonis Konstantinos Efrose, Rodica C Kalloniati, Chrysanthi Tzovenis, Ioannis Flemetakis, Emmanouil Hydroponic systems are gaining prominence in sustainable agriculture, yet their nutrient-rich effluents remain an underexplored source of microbial biodiversity with potential biotechnological interest. In this study, shotgun metagenomic sequencing was employed to profile, with a high taxonomic resolution, the photosynthetic microbial community in hydroponic effluent before and after a natural algal bloom, revealing pronounced shifts in microbial composition. Notably, relative abundance increased sixfold for and tenfold for . Four dominant microalgal strains (PR1-PR4) were subsequently isolated and characterized through integrative morphological and molecular taxonomy, with phylogenetic analyses based on four genetic markers (18S rRNA, ITS, and ) confirming that each isolate represents a distinct lineage within Chlorophyceae families, including sp., sp., and sp. Growth kinetics under three temperature regimes, typical of Greek environmental conditions from spring to autumn (15 °C, 23 °C, 32 °C), demonstrated broad ecological plasticity and rapid biomass production, highlighting strains with strong adaptive resilience. Biochemical profiling of the isolates revealed significant inter-strain differences in primary and secondary metabolite content, including proteins (up to 43% DW), lipids (up to 31% DW), carbohydrates (up to 44% DW), photosynthetic pigments, phenolics, flavonoids, and antioxidant activity. The observed metabolic diversity of autochthonous microalgal strains from hydroponic environments, combined with their high growth rates, underscores their potential for applications in bioremediation, bioenergy, and the development of value-added products within a circular bioeconomy framework. |
| title | Isolation and Characterization of Microalgae Isolates from Hydroponic Effluent Water: Metagenomics and Biotechnological Insights. |
| url | https://pubmed.ncbi.nlm.nih.gov/41900342/ |