Seed dormancy and longevity in subarctic and alpine populations of Silene suecica
Despite the strong environmental control of seed dormancy and longevity, their changes along latitudes are poorly understood. The aim of this study was to assess seed dormancy and longevity in different populations across the distribution of the arctic–alpine plant Silene suecica. Seeds of seven pop...
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Online Access: | http://hdl.handle.net/11368/2937179 https://doi.org/10.1007/s00035-017-0194-x https://link.springer.com/article/10.1007/s00035-017-0194-x |
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ftunitriestiris:oai:arts.units.it:11368/2937179 2023-05-15T15:00:05+02:00 Seed dormancy and longevity in subarctic and alpine populations of Silene suecica Mondoni, Andrea Orsenigo, Simone Mã¼ller, Jonas V. Carlsson-graner, Ulla Jimã©nez-alfaro, Borja Abeli, Thomas Mondoni, Andrea Orsenigo, Simone Mã¼ller, Jonas V. Carlsson-graner, Ulla Jimã©nez-alfaro, Borja Abeli, Thomas 2018 http://hdl.handle.net/11368/2937179 https://doi.org/10.1007/s00035-017-0194-x https://link.springer.com/article/10.1007/s00035-017-0194-x eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000427690200007 volume:128 issue:1 firstpage:71 lastpage:81 numberofpages:11 journal:ALPINE BOTANY http://hdl.handle.net/11368/2937179 doi:10.1007/s00035-017-0194-x info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85032706044 https://link.springer.com/article/10.1007/s00035-017-0194-x info:eu-repo/semantics/closedAccess Adaptation Alpine specie Central and marginal population Climate change Reproduction Seed dormancy and germination Ecology Evolution Behavior and Systematic Plant Science info:eu-repo/semantics/article 2018 ftunitriestiris https://doi.org/10.1007/s00035-017-0194-x 2023-04-09T06:16:09Z Despite the strong environmental control of seed dormancy and longevity, their changes along latitudes are poorly understood. The aim of this study was to assess seed dormancy and longevity in different populations across the distribution of the arctic–alpine plant Silene suecica. Seeds of seven populations collected from alpine (Spain, Italy, Scotland) and subarctic (Sweden, Norway) populations were incubated at four temperature regimes and five cold stratification intervals for germination and dormancy testing. Seed longevity was studied by exposing seeds to controlled ageing (45 °C, 60% RH) and regularly sampled for germination. Fresh seeds of S. suecica germinated at warm temperature (20/15 °C) and more in subarctic (80–100%) compared to alpine (20–50%) populations showed a negative correlation with autumn temperature (i.e., post-dispersal period). Seed germination increased after cold stratification in all populations, with different percentages (30–100%). Similarly, there was a large variation of seed longevity (p50 = 12–32 days), with seeds from the wettest locations showing faster deterioration rate. Subarctic populations of S. suecica were less dormant, showing a warmer suitable temperature range for germination, and a higher germinability than alpine populations. Germination and dormancy were driven by an interplay of geographical and climatic factors, with alpine and warm versus subarctic and cool autumn conditions, eliciting a decrease and an increase of emergence, respectively. Germination and dormancy patterns typically found in alpine habitats may not be found in the arctic. Article in Journal/Newspaper Arctic Climate change Subarctic Università degli studi di Trieste: ArTS (Archivio della ricerca di Trieste) Arctic Norway Alpine Botany 128 1 71 81 |
institution |
Open Polar |
collection |
Università degli studi di Trieste: ArTS (Archivio della ricerca di Trieste) |
op_collection_id |
ftunitriestiris |
language |
English |
topic |
Adaptation Alpine specie Central and marginal population Climate change Reproduction Seed dormancy and germination Ecology Evolution Behavior and Systematic Plant Science |
spellingShingle |
Adaptation Alpine specie Central and marginal population Climate change Reproduction Seed dormancy and germination Ecology Evolution Behavior and Systematic Plant Science Mondoni, Andrea Orsenigo, Simone Mã¼ller, Jonas V. Carlsson-graner, Ulla Jimã©nez-alfaro, Borja Abeli, Thomas Seed dormancy and longevity in subarctic and alpine populations of Silene suecica |
topic_facet |
Adaptation Alpine specie Central and marginal population Climate change Reproduction Seed dormancy and germination Ecology Evolution Behavior and Systematic Plant Science |
description |
Despite the strong environmental control of seed dormancy and longevity, their changes along latitudes are poorly understood. The aim of this study was to assess seed dormancy and longevity in different populations across the distribution of the arctic–alpine plant Silene suecica. Seeds of seven populations collected from alpine (Spain, Italy, Scotland) and subarctic (Sweden, Norway) populations were incubated at four temperature regimes and five cold stratification intervals for germination and dormancy testing. Seed longevity was studied by exposing seeds to controlled ageing (45 °C, 60% RH) and regularly sampled for germination. Fresh seeds of S. suecica germinated at warm temperature (20/15 °C) and more in subarctic (80–100%) compared to alpine (20–50%) populations showed a negative correlation with autumn temperature (i.e., post-dispersal period). Seed germination increased after cold stratification in all populations, with different percentages (30–100%). Similarly, there was a large variation of seed longevity (p50 = 12–32 days), with seeds from the wettest locations showing faster deterioration rate. Subarctic populations of S. suecica were less dormant, showing a warmer suitable temperature range for germination, and a higher germinability than alpine populations. Germination and dormancy were driven by an interplay of geographical and climatic factors, with alpine and warm versus subarctic and cool autumn conditions, eliciting a decrease and an increase of emergence, respectively. Germination and dormancy patterns typically found in alpine habitats may not be found in the arctic. |
author2 |
Mondoni, Andrea Orsenigo, Simone Mã¼ller, Jonas V. Carlsson-graner, Ulla Jimã©nez-alfaro, Borja Abeli, Thomas |
format |
Article in Journal/Newspaper |
author |
Mondoni, Andrea Orsenigo, Simone Mã¼ller, Jonas V. Carlsson-graner, Ulla Jimã©nez-alfaro, Borja Abeli, Thomas |
author_facet |
Mondoni, Andrea Orsenigo, Simone Mã¼ller, Jonas V. Carlsson-graner, Ulla Jimã©nez-alfaro, Borja Abeli, Thomas |
author_sort |
Mondoni, Andrea |
title |
Seed dormancy and longevity in subarctic and alpine populations of Silene suecica |
title_short |
Seed dormancy and longevity in subarctic and alpine populations of Silene suecica |
title_full |
Seed dormancy and longevity in subarctic and alpine populations of Silene suecica |
title_fullStr |
Seed dormancy and longevity in subarctic and alpine populations of Silene suecica |
title_full_unstemmed |
Seed dormancy and longevity in subarctic and alpine populations of Silene suecica |
title_sort |
seed dormancy and longevity in subarctic and alpine populations of silene suecica |
publishDate |
2018 |
url |
http://hdl.handle.net/11368/2937179 https://doi.org/10.1007/s00035-017-0194-x https://link.springer.com/article/10.1007/s00035-017-0194-x |
geographic |
Arctic Norway |
geographic_facet |
Arctic Norway |
genre |
Arctic Climate change Subarctic |
genre_facet |
Arctic Climate change Subarctic |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000427690200007 volume:128 issue:1 firstpage:71 lastpage:81 numberofpages:11 journal:ALPINE BOTANY http://hdl.handle.net/11368/2937179 doi:10.1007/s00035-017-0194-x info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85032706044 https://link.springer.com/article/10.1007/s00035-017-0194-x |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1007/s00035-017-0194-x |
container_title |
Alpine Botany |
container_volume |
128 |
container_issue |
1 |
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71 |
op_container_end_page |
81 |
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