Maternal temperature effects on seed dormancy mitigate the negative impact of global warming on germination and population fitness.
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| Názov: | Maternal temperature effects on seed dormancy mitigate the negative impact of global warming on germination and population fitness. |
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| Autori: | Fernández Farnocchia RB; Universidad de Buenos Aires, Facultad de Agronomía, Departamento de Producción Vegetal, Cátedra de Cultivos Industriales, C1417DSE, Ciudad de Buenos Aires, Argentina.; Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA/CONICET), C1417DSE, Ciudad de Buenos Aires, Argentina., Benech-Arnold RL; Universidad de Buenos Aires, Facultad de Agronomía, Departamento de Producción Vegetal, Cátedra de Cultivos Industriales, C1417DSE, Ciudad de Buenos Aires, Argentina.; Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA/CONICET), C1417DSE, Ciudad de Buenos Aires, Argentina., Batlla D; Universidad de Buenos Aires, Facultad de Agronomía, Departamento de Producción Vegetal, Cátedra de Cultivos Industriales, C1417DSE, Ciudad de Buenos Aires, Argentina.; Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA/CONICET), C1417DSE, Ciudad de Buenos Aires, Argentina. |
| Zdroj: | Journal of experimental botany [J Exp Bot] 2025 Dec 04; Vol. 76 (22), pp. 6944-6957. |
| Spôsob vydávania: | Journal Article |
| Jazyk: | English |
| Informácie o časopise: | Publisher: Oxford University Press Country of Publication: England NLM ID: 9882906 Publication Model: Print Cited Medium: Internet ISSN: 1460-2431 (Electronic) Linking ISSN: 00220957 NLM ISO Abbreviation: J Exp Bot Subsets: MEDLINE |
| Imprint Name(s): | Original Publication: Oxford, UK : Oxford University Press, |
| Výrazy zo slovníka MeSH: | Plant Dormancy*/physiology , Global Warming* , Germination* , Seeds*/physiology , Seeds*/growth & development , Genetic Fitness*, Temperature |
| Abstrakt: | A negative relationship is typically observed between the temperature experienced by the seeds during their development and maturation on the mother plant (maternal temperature) and seed dormancy at dispersal, and this could affect the timing of germination in current and future environments given the context of global warming. We conducted field and laboratory experiments to investigate the effects of maternal temperature on the dormancy level of Polygonum aviculare seeds, and the results were used to simulate the timing of germination and subsequent population reproductive performance under different thermal scenarios. Increasing maternal temperature reduced the dormancy level of seeds, altered the induction of secondary dormancy, and generally increased seedling emergence in the field. Simulations for current thermal scenarios demonstrated that the effect of maternal temperature on seed dormancy could lead to changes in germination timing from year to year. For future warming scenarios, the simulations indicated that rising maternal temperatures, along with those experienced by the seed bank, could decrease the proportion of seeds capable of germinating and delay germination timing, resulting in cascading negative effects on population reproductive fitness. However, changes in the germination timing and the reproductive fitness were more pronounced when the simulations excluded the effects of the maternal temperature on dormancy level, suggesting that this modulation could play a significant role in mitigating the consequences of global warming. (© The Author(s) 2025. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For commercial re-use, please contact reprints@oup.com for reprints and translation rights for reprints. All other permissions can be obtained through our RightsLink service via the Permissions link on the article page on our site—for further information please contact journals.permissions@oup.com.) |
| Grant Information: | PICT 2018 03546 Agencia Nacional de Promoción Científica y Tecnológica; 2021 00563 Agencia Nacional de Promoción Científica y Tecnológica; Consejo Nacional de Investigaciones Científicas y Técnicas |
| Contributed Indexing: | Keywords: Polygonum aviculare; Climate change; dormancy; emergence; germination; global warming; maternal temperature; population fitness; secondary dormancy; seed bank; temperature |
| Entry Date(s): | Date Created: 20250604 Date Completed: 20251204 Latest Revision: 20251204 |
| Update Code: | 20251204 |
| DOI: | 10.1093/jxb/eraf243 |
| PMID: | 40462743 |
| Databáza: | MEDLINE |
Nájsť tento článok vo Web of Science | Abstrakt: | A negative relationship is typically observed between the temperature experienced by the seeds during their development and maturation on the mother plant (maternal temperature) and seed dormancy at dispersal, and this could affect the timing of germination in current and future environments given the context of global warming. We conducted field and laboratory experiments to investigate the effects of maternal temperature on the dormancy level of Polygonum aviculare seeds, and the results were used to simulate the timing of germination and subsequent population reproductive performance under different thermal scenarios. Increasing maternal temperature reduced the dormancy level of seeds, altered the induction of secondary dormancy, and generally increased seedling emergence in the field. Simulations for current thermal scenarios demonstrated that the effect of maternal temperature on seed dormancy could lead to changes in germination timing from year to year. For future warming scenarios, the simulations indicated that rising maternal temperatures, along with those experienced by the seed bank, could decrease the proportion of seeds capable of germinating and delay germination timing, resulting in cascading negative effects on population reproductive fitness. However, changes in the germination timing and the reproductive fitness were more pronounced when the simulations excluded the effects of the maternal temperature on dormancy level, suggesting that this modulation could play a significant role in mitigating the consequences of global warming.<br /> (© The Author(s) 2025. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For commercial re-use, please contact reprints@oup.com for reprints and translation rights for reprints. All other permissions can be obtained through our RightsLink service via the Permissions link on the article page on our site—for further information please contact journals.permissions@oup.com.) |
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| ISSN: | 1460-2431 |
| DOI: | 10.1093/jxb/eraf243 |