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| Formato: | Artículo científico |
| Lenguaje: | en |
| Publicado: |
Physiologia plantarum
2025
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| Materias: | |
| Acceso en línea: | https://pubmed.ncbi.nlm.nih.gov/40065515/ |
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| _version_ | 1868266232039342080 |
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| author | Pieraccini, Riccardo Whatley, Lawrence Koedam, Nico Vanreusel, Ann Dolch, Tobias Dierick, Jasper Van der Stocken, Tom |
| author_facet | Pieraccini, Riccardo Whatley, Lawrence Koedam, Nico Vanreusel, Ann Dolch, Tobias Dierick, Jasper Van der Stocken, Tom Pieraccini, Riccardo Whatley, Lawrence Koedam, Nico Vanreusel, Ann Dolch, Tobias Dierick, Jasper Van der Stocken, Tom |
| collection | PubMed - marine biology |
| contents | Gibberellic acid and light effects on seed germination in the seagrass Zostera marina. Pieraccini, Riccardo Whatley, Lawrence Koedam, Nico Vanreusel, Ann Dolch, Tobias Dierick, Jasper Van der Stocken, Tom Gibberellins Germination Zosteraceae Light Seeds Plant Growth Regulators Seedlings Photoperiod Plant Dormancy Seagrass meadows have been heavily affected by human activities, with Zostera marina L. (Zosteraceae) being one of the most impacted species. Seed-based methods are currently the preferred approach for their restoration, yet low germination rates and poor seedling establishment remain significant challenges. This study explored the combined effects of light spectra (white, red, and darkness), photoperiod, and gibberellic acid (GA0, 50, 500, and 1000 mg L) on Z. marina seed germination using a fully crossed incubation experiment. Penalised logistic regression and Cox proportional hazards analysis were chosen to account for low germination events and to analyse the temporal dynamics of germination. We found that light conditions, particularly red light and darkness, when combined with GA, significantly enhanced germination probability. Furthermore, mid (50 mg L) and high (500 mg L) GA concentrations reduced time-to-germination. Morphometric analysis of the cotyledonary and leaf tissue development indicates no adverse effects of the treatments on seedling development. Our findings suggest that light and GA treatments effectively improve germination success and reduce dormancy in Z. marina seeds. Seed treatments can mitigate stress- or manipulation-induced dormancy and can represent a viable strategy for on-demand germination, such as in the context of seed-based restoration efforts. |
| format | Artículo científico |
| id | pubmed_40065515 |
| institution | PubMed |
| language | en |
| publishDate | 2025 |
| publisher | Physiologia plantarum |
| record_format | pubmed |
| spellingShingle | Gibberellic acid and light effects on seed germination in the seagrass Zostera marina. Pieraccini, Riccardo Whatley, Lawrence Koedam, Nico Vanreusel, Ann Dolch, Tobias Dierick, Jasper Van der Stocken, Tom Gibberellins Germination Zosteraceae Light Seeds Plant Growth Regulators Seedlings Photoperiod Plant Dormancy Gibberellic acid and light effects on seed germination in the seagrass Zostera marina. Pieraccini, Riccardo Whatley, Lawrence Koedam, Nico Vanreusel, Ann Dolch, Tobias Dierick, Jasper Van der Stocken, Tom Gibberellins Germination Zosteraceae Light Seeds Plant Growth Regulators Seedlings Photoperiod Plant Dormancy Seagrass meadows have been heavily affected by human activities, with Zostera marina L. (Zosteraceae) being one of the most impacted species. Seed-based methods are currently the preferred approach for their restoration, yet low germination rates and poor seedling establishment remain significant challenges. This study explored the combined effects of light spectra (white, red, and darkness), photoperiod, and gibberellic acid (GA0, 50, 500, and 1000 mg L) on Z. marina seed germination using a fully crossed incubation experiment. Penalised logistic regression and Cox proportional hazards analysis were chosen to account for low germination events and to analyse the temporal dynamics of germination. We found that light conditions, particularly red light and darkness, when combined with GA, significantly enhanced germination probability. Furthermore, mid (50 mg L) and high (500 mg L) GA concentrations reduced time-to-germination. Morphometric analysis of the cotyledonary and leaf tissue development indicates no adverse effects of the treatments on seedling development. Our findings suggest that light and GA treatments effectively improve germination success and reduce dormancy in Z. marina seeds. Seed treatments can mitigate stress- or manipulation-induced dormancy and can represent a viable strategy for on-demand germination, such as in the context of seed-based restoration efforts. |
| title | Gibberellic acid and light effects on seed germination in the seagrass Zostera marina. |
| topic | Gibberellins Germination Zosteraceae Light Seeds Plant Growth Regulators Seedlings Photoperiod Plant Dormancy |
| url | https://pubmed.ncbi.nlm.nih.gov/40065515/ |