Influence of Summer Drought on Post-Drought Resprouting and Leaf Senescence in Prunus spinosa L. Growing in a Common Garden

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Titel: Influence of Summer Drought on Post-Drought Resprouting and Leaf Senescence in Prunus spinosa L. Growing in a Common Garden
Autoren: Kristine Vander Mijnsbrugge, Stefaan Moreels, Sharon Moreels, Damien Buisset, Karen Vancampenhout, Eduardo Notivol Paino
Quelle: Plants (Basel)
citaREA. Repositorio Institucional del CITA
Centro de Investigación y Tecnología Agroalimentaria de Aragón
Plants, Vol 14, Iss 7, p 1132 (2025)
Verlagsinformationen: MDPI AG, 2025.
Publikationsjahr: 2025
Schlagwörter: LIVE, Survival, Escasez de agua, black thorn, water limitation, DI, Article, Persistence, recovery, dry-out experiment, Recovery, Ensayos De Procedencias, Prunus spinosa, Responses, Black thorn, bud burs, Enfermedades foliares, Botany, Escasez De Agua, Enfermedades Foliares, Restauración de tierras, Fenología, Phenology, QK1-989, Ensayos de procedencias, Botones de flor, Restauración De Tierras, leaf discoloration, provenance trial
Beschreibung: Understanding how woody plants cope with severe water shortages is critical, especially for regions where droughts are becoming more frequent and intense. We studied the effects of drought intensity, focusing on post-drought resprouting, autumn leaf senescence and the subsequent spring bud burst. Furthermore, we aimed to study population differentiation in the drought and post-drought responses. We performed a summer dry-out experiment in a common garden of potted Prunus spinosa L. (Rosaceae) saplings. We analysed responses across different visual stress symptom categories and examined differentiation between provenances from a local origin (Western Europe, Belgium), a lower latitude (Spain) and a higher latitude (Sweden). The chance of post-drought resprouting was greater for the more severely affected plants than for the less severely affected ones, and it occurred earlier. The plants that displayed wilting of the leaves during the drought had a leaf senescence 2.7 days earlier than the controls, whereas that of plants with 25 to 75% and more than 75% of desiccated leaves was 7 and 15 days later, respectively. During the drought, the local provenance was the first to develop visual symptoms compared to the other two provenances. However, among plants that exhibited no or only mild symptoms, this provenance also had a higher likelihood of post-drought resprouting. Among the control plants, the higher-latitude provenance displayed leaf senescence earlier, while the lower-latitude provenance senesced later compared to the local provenance. However, these differences in the timing of leaf senescence among the three provenances disappeared in treated plants with more than 25% of desiccated leaves due to the drought. Whereas leaf senescence could be earlier or later depending on the developed drought symptoms, the timing of bud burst was only delayed. Results indicate that resprouting and timing of leaf senescence are responsive to the severity of the experienced drought in a provenance-dependent way.
Publikationsart: Article
Other literature type
Dateibeschreibung: application/pdf
Sprache: English
ISSN: 2223-7747
DOI: 10.3390/plants14071132
Zugangs-URL: https://pubmed.ncbi.nlm.nih.gov/40219200
http://hdl.handle.net/10532/7588
https://doaj.org/article/69b0a44e80364f678da50e64d6ad1032
Rights: CC BY
Dokumentencode: edsair.doi.dedup.....e01e0e8bcbffe79989f0e05230d69133
Datenbank: OpenAIRE
Beschreibung
Abstract:Understanding how woody plants cope with severe water shortages is critical, especially for regions where droughts are becoming more frequent and intense. We studied the effects of drought intensity, focusing on post-drought resprouting, autumn leaf senescence and the subsequent spring bud burst. Furthermore, we aimed to study population differentiation in the drought and post-drought responses. We performed a summer dry-out experiment in a common garden of potted Prunus spinosa L. (Rosaceae) saplings. We analysed responses across different visual stress symptom categories and examined differentiation between provenances from a local origin (Western Europe, Belgium), a lower latitude (Spain) and a higher latitude (Sweden). The chance of post-drought resprouting was greater for the more severely affected plants than for the less severely affected ones, and it occurred earlier. The plants that displayed wilting of the leaves during the drought had a leaf senescence 2.7 days earlier than the controls, whereas that of plants with 25 to 75% and more than 75% of desiccated leaves was 7 and 15 days later, respectively. During the drought, the local provenance was the first to develop visual symptoms compared to the other two provenances. However, among plants that exhibited no or only mild symptoms, this provenance also had a higher likelihood of post-drought resprouting. Among the control plants, the higher-latitude provenance displayed leaf senescence earlier, while the lower-latitude provenance senesced later compared to the local provenance. However, these differences in the timing of leaf senescence among the three provenances disappeared in treated plants with more than 25% of desiccated leaves due to the drought. Whereas leaf senescence could be earlier or later depending on the developed drought symptoms, the timing of bud burst was only delayed. Results indicate that resprouting and timing of leaf senescence are responsive to the severity of the experienced drought in a provenance-dependent way.
ISSN:22237747
DOI:10.3390/plants14071132