Interannual Variability in Seed Germination Response to Heat Shock in Cistus ladanifer

Mediterranean climates, characterised by hot and dry summers, have predictable fire regimes, and many species with physical seed dormancy (PY) thrive after wildfires. While it is well known that PY is released after heat shock in these species, intraspecific variation in seed response to heat is les...

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Detalles Bibliográficos
Autor: Luna Trenado, María Belén
Tipo de recurso: artículo
Fecha de publicación:2024
País:España
Institución:Universidad de Castilla-La Mancha
Repositorio:RUIdeRA. Repositorio Institucional de la UCLM
OAI Identifier:oai:ruidera.uclm.es:10578/39385
Acceso en línea:https://doi.org/10.3390/fire7100334
https://www.mdpi.com/2571-6255/7/10/334
https://hdl.handle.net/10578/39385
Access Level:acceso abierto
Palabra clave:Cistaceae
Fire
Physical seed dormancy
Seed mass
Seed moisture content
Seed traits
Seed viability
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spelling Interannual Variability in Seed Germination Response to Heat Shock in Cistus ladaniferLuna Trenado, María BelénCistaceaeFirePhysical seed dormancySeed massSeed moisture contentSeed traitsSeed viabilityMediterranean climates, characterised by hot and dry summers, have predictable fire regimes, and many species with physical seed dormancy (PY) thrive after wildfires. While it is well known that PY is released after heat shock in these species, intraspecific variation in seed response to heat is less understood. This research explores, for the first time, the variability in the traits of Cistus ladanifer seeds from the same central Spain population over eight years. It examines seed germination and viability under different heat shocks and the relationships among seed traits and climatic variables. While the response to heat shock remained constant over the years studied, achieving the highest germination percentages after heat shock at 100 °C, seed germination varied between years, and environmental conditions affected seed traits. Seed moisture content was negatively correlated with the maximum summer temperatures, and seed viability was positively related to annual precipitation. Germination at 100 °C was lower in warmer years as more seeds did not break their PY. In conclusion, despite the fact that PY appears to be genetically determined, it also depends on the environmental conditions experienced by the mother plant. This interannual phenotypic variability may help Cistus ladanifer to cope with the increasingly unpredictable conditions imposed by climate change.MDPI202420242024info:eu-repo/semantics/articleapplication/pdfapplication/pdfhttps://doi.org/10.3390/fire7100334https://www.mdpi.com/2571-6255/7/10/334https://hdl.handle.net/10578/39385reponame:RUIdeRA. Repositorio Institucional de la UCLMinstname:Universidad de Castilla-La ManchaInglésinfo:eu-repo/semantics/openAccessoai:ruidera.uclm.es:10578/393852026-05-27T07:36:41Z
dc.title.none.fl_str_mv Interannual Variability in Seed Germination Response to Heat Shock in Cistus ladanifer
title Interannual Variability in Seed Germination Response to Heat Shock in Cistus ladanifer
spellingShingle Interannual Variability in Seed Germination Response to Heat Shock in Cistus ladanifer
Luna Trenado, María Belén
Cistaceae
Fire
Physical seed dormancy
Seed mass
Seed moisture content
Seed traits
Seed viability
title_short Interannual Variability in Seed Germination Response to Heat Shock in Cistus ladanifer
title_full Interannual Variability in Seed Germination Response to Heat Shock in Cistus ladanifer
title_fullStr Interannual Variability in Seed Germination Response to Heat Shock in Cistus ladanifer
title_full_unstemmed Interannual Variability in Seed Germination Response to Heat Shock in Cistus ladanifer
title_sort Interannual Variability in Seed Germination Response to Heat Shock in Cistus ladanifer
dc.creator.none.fl_str_mv Luna Trenado, María Belén
author Luna Trenado, María Belén
author_facet Luna Trenado, María Belén
author_role author
dc.subject.none.fl_str_mv Cistaceae
Fire
Physical seed dormancy
Seed mass
Seed moisture content
Seed traits
Seed viability
topic Cistaceae
Fire
Physical seed dormancy
Seed mass
Seed moisture content
Seed traits
Seed viability
description Mediterranean climates, characterised by hot and dry summers, have predictable fire regimes, and many species with physical seed dormancy (PY) thrive after wildfires. While it is well known that PY is released after heat shock in these species, intraspecific variation in seed response to heat is less understood. This research explores, for the first time, the variability in the traits of Cistus ladanifer seeds from the same central Spain population over eight years. It examines seed germination and viability under different heat shocks and the relationships among seed traits and climatic variables. While the response to heat shock remained constant over the years studied, achieving the highest germination percentages after heat shock at 100 °C, seed germination varied between years, and environmental conditions affected seed traits. Seed moisture content was negatively correlated with the maximum summer temperatures, and seed viability was positively related to annual precipitation. Germination at 100 °C was lower in warmer years as more seeds did not break their PY. In conclusion, despite the fact that PY appears to be genetically determined, it also depends on the environmental conditions experienced by the mother plant. This interannual phenotypic variability may help Cistus ladanifer to cope with the increasingly unpredictable conditions imposed by climate change.
publishDate 2024
dc.date.none.fl_str_mv 2024
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://doi.org/10.3390/fire7100334
https://www.mdpi.com/2571-6255/7/10/334
https://hdl.handle.net/10578/39385
url https://doi.org/10.3390/fire7100334
https://www.mdpi.com/2571-6255/7/10/334
https://hdl.handle.net/10578/39385
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:RUIdeRA. Repositorio Institucional de la UCLM
instname:Universidad de Castilla-La Mancha
instname_str Universidad de Castilla-La Mancha
reponame_str RUIdeRA. Repositorio Institucional de la UCLM
collection RUIdeRA. Repositorio Institucional de la UCLM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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