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Datum
2021-07-15Schlagwort
580 Pflanzen (Botanik) ArnikaKlimaänderungDürrePflanzenökologieSetzlingPflanzenvermehrungAlternArtenschutzStressreaktionMetadata
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Aufsatz
Deutsche Bundesstiftung Umwelt. Grant Number: 20016/464
Drought stress triggers differential survival and functional trait responses in the establishment of Arnica montana seedlings
Zusammenfassung
- The establishment and survival of seedlings are critical stages in the life cycle of plants and therefore usually well timed to humid and favourable conditions. Climate projections suggest that the threatened mountain grassland species Arnica montana may be increasingly exposed to drought stress. However, studies that focus on the species’ early development are missing. We evaluated impacts of drought-induced stress on A. montana seedlings in their early establishment phase and identified traits that could cause the species’ fitness to decline.
- In a greenhouse experiment, we tested the response of A. montana seedlings to different drought levels (moderate, strong, extreme). To assess their fitness under increasing drought, we evaluated survival of the seedlings based on four senescence stages and measured the performance of above- and belowground morphological and physiological functional traits.
- Arnica montana seedlings showed high resistance to drought. Senescence accelerated and survival declined only under strong and extreme drought conditions. However, the seedlings’ vegetative performance decreased even with moderate drought, as indicated by smaller values of most leaf traits and some root traits. Physiological trait response was less sensitive.
- Drought stress hinders the establishment and survival of A. montana seedlings. Following the functional trait responses to drought and their association with survival, we suggest declining leaf length, leaf width, and leaf number are sensitive traits that can lead to a decline in performance.
- In a greenhouse experiment, we tested the response of A. montana seedlings to different drought levels (moderate, strong, extreme). To assess their fitness under increasing drought, we evaluated survival of the seedlings based on four senescence stages and measured the performance of above- and belowground morphological and physiological functional traits.
- Arnica montana seedlings showed high resistance to drought. Senescence accelerated and survival declined only under strong and extreme drought conditions. However, the seedlings’ vegetative performance decreased even with moderate drought, as indicated by smaller values of most leaf traits and some root traits. Physiological trait response was less sensitive.
- Drought stress hinders the establishment and survival of A. montana seedlings. Following the functional trait responses to drought and their association with survival, we suggest declining leaf length, leaf width, and leaf number are sensitive traits that can lead to a decline in performance.
Zitierform
In: Plant Biology Volume 23 / Issue 6 (2021-07-15) , S. 1086-1096 ; eissn:1438-8677Förderhinweis
Gefördert im Rahmen des Projekts DEALDeutsche Bundesstiftung Umwelt. Grant Number: 20016/464
Zitieren
@article{doi:10.17170/kobra-202111015003,
author={Stanik, Nils and Lampei, Christian and Rosenthal, Gert},
title={Drought stress triggers differential survival and functional trait responses in the establishment of Arnica montana seedlings},
journal={Plant Biology},
year={2021}
}
0500 Oax 0501 Text $btxt$2rdacontent 0502 Computermedien $bc$2rdacarrier 1100 2021$n2021 1500 1/eng 2050 ##0##http://hdl.handle.net/123456789/13364 3000 Stanik, Nils 3010 Lampei, Christian 3010 Rosenthal, Gert 4000 Drought stress triggers differential survival and functional trait responses in the establishment of Arnica montana seedlings / Stanik, Nils 4030 4060 Online-Ressource 4085 ##0##=u http://nbn-resolving.de/http://hdl.handle.net/123456789/13364=x R 4204 \$dAufsatz 4170 5550 {{Arnika}} 5550 {{Klimaänderung}} 5550 {{Dürre}} 5550 {{Pflanzenökologie}} 5550 {{Setzling}} 5550 {{Pflanzenvermehrung}} 5550 {{Altern}} 5550 {{Artenschutz}} 5550 {{Stressreaktion}} 7136 ##0##http://hdl.handle.net/123456789/13364
2021-11-08T10:24:08Z 2021-11-08T10:24:08Z 2021-07-15 doi:10.17170/kobra-202111015003 http://hdl.handle.net/123456789/13364 Gefördert im Rahmen des Projekts DEAL Deutsche Bundesstiftung Umwelt. Grant Number: 20016/464 eng Namensnennung-Nicht-kommerziell 4.0 International http://creativecommons.org/licenses/by-nc/4.0/ Arnica montana climate change drought plant functional traits seedling development seedling establishment senescence species survival 580 Drought stress triggers differential survival and functional trait responses in the establishment of Arnica montana seedlings Aufsatz - The establishment and survival of seedlings are critical stages in the life cycle of plants and therefore usually well timed to humid and favourable conditions. Climate projections suggest that the threatened mountain grassland species Arnica montana may be increasingly exposed to drought stress. However, studies that focus on the species’ early development are missing. We evaluated impacts of drought-induced stress on A. montana seedlings in their early establishment phase and identified traits that could cause the species’ fitness to decline. - In a greenhouse experiment, we tested the response of A. montana seedlings to different drought levels (moderate, strong, extreme). To assess their fitness under increasing drought, we evaluated survival of the seedlings based on four senescence stages and measured the performance of above- and belowground morphological and physiological functional traits. - Arnica montana seedlings showed high resistance to drought. Senescence accelerated and survival declined only under strong and extreme drought conditions. However, the seedlings’ vegetative performance decreased even with moderate drought, as indicated by smaller values of most leaf traits and some root traits. Physiological trait response was less sensitive. - Drought stress hinders the establishment and survival of A. montana seedlings. Following the functional trait responses to drought and their association with survival, we suggest declining leaf length, leaf width, and leaf number are sensitive traits that can lead to a decline in performance. open access Stanik, Nils Lampei, Christian Rosenthal, Gert doi:10.1111/plb.13306 Grant Number: 20016/464 Arnika Klimaänderung Dürre Pflanzenökologie Setzling Pflanzenvermehrung Altern Artenschutz Stressreaktion publishedVersion eissn:1438-8677 Issue 6 Plant Biology 1086-1096 Volume 23 false
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