Aufsatz
Deutsche Bundesstiftung Umwelt. Grant Number: 20016/464
Drought stress triggers differential survival and functional trait responses in the establishment of Arnica montana seedlings
Abstract
- 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.
Sponsorship
Gefördert im Rahmen des Projekts DEALDeutsche Bundesstiftung Umwelt. Grant Number: 20016/464
Citation
@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
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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
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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
<resource xsi:schemaLocation="http://datacite.org/schema/kernel-2.2 http://schema.datacite.org/meta/kernel-2.2/metadata.xsd"> 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 </resource>
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