A quantitative analysis of temperature-dependent seasonal dormancy cycling in buried Arabidopsis thaliana seeds can predict seedling emergence in a global warming scenario

© The Author(s) 2022. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For permissions, please email: journals.permissionsoup.com.

Bibliographische Detailangaben
Veröffentlicht in:Journal of experimental botany. - 1985. - 73(2022), 8 vom: 18. Apr., Seite 2454-2468
1. Verfasser: Batlla, Diego (VerfasserIn)
Weitere Verfasser: Malavert, Cristian, Farnocchia, Rocío Belén Fernández, Footitt, Steven, Benech-Arnold, Roberto Luis, Finch-Savage, William E
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:Journal of experimental botany
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Arabidopsis thaliana dormancy global warming population threshold models seed bank seedling emergence simulation soil temperature Soil
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520 |a © The Author(s) 2022. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For permissions, please email: journals.permissionsoup.com. 
520 |a Understanding how the environment regulates seed-bank dormancy changes is essential for forecasting seedling emergence in actual and future climatic scenarios, and to interpret studies of dormancy mechanisms at physiological and molecular levels. Here, we used a population threshold modelling approach to analyse dormancy changes through variations in the thermal range permissive for germination in buried seeds of Arabidopsis thaliana Cvi, a winter annual ecotype. Results showed that changes in dormancy level were mainly associated with variations in the higher limit of the thermal range permissive for germination. Changes in this limit were positively related to soil temperature during dormancy release and induction, and could be predicted using thermal time. From this, we developed a temperature-driven simulation to predict the fraction of the seed bank able to germinate in a realistic global warming scenario that approximated seedling emergence timing. Simulations predicted, in accordance with seedling emergence observed in the field, an increase in the fraction of the seed bank able to emerge as a result of global warming. In addition, our results suggest that buried seeds perceive changes in the variability of the mean daily soil temperature as the signal to change between dormancy release and induction according to the seasons 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Arabidopsis thaliana 
650 4 |a dormancy 
650 4 |a global warming 
650 4 |a population threshold models 
650 4 |a seed bank 
650 4 |a seedling emergence 
650 4 |a simulation 
650 4 |a soil temperature 
650 7 |a Soil  |2 NLM 
700 1 |a Malavert, Cristian  |e verfasserin  |4 aut 
700 1 |a Farnocchia, Rocío Belén Fernández  |e verfasserin  |4 aut 
700 1 |a Footitt, Steven  |e verfasserin  |4 aut 
700 1 |a Benech-Arnold, Roberto Luis  |e verfasserin  |4 aut 
700 1 |a Finch-Savage, William E  |e verfasserin  |4 aut 
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773 1 8 |g volume:73  |g year:2022  |g number:8  |g day:18  |g month:04  |g pages:2454-2468 
856 4 0 |u http://dx.doi.org/10.1093/jxb/erac038  |3 Volltext 
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