Non-structural carbohydrate dynamics associated with drought-induced die-off in woody species of a shrubland community

The relationship between plant carbon economy and drought responses of co-occurring woody species can be assessed by comparing carbohydrate (C) dynamics following drought and rain periods, relating these dynamics to species' functional traits. We studied nine woody species coexisting in a conti...

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Autores: Lloret, Francisco|||0000-0002-9836-4069, Sapes, Gerard|||0000-0002-6017-2053, Rosas, Teresa|||0000-0002-8734-9752, Galiano, Lucía|||0000-0003-0123-1882, Saura Mas, Sandra|||0000-0001-8539-427X, Sala, Anna, Martínez Vilalta, Jordi|||0000-0002-2332-7298
Tipo de recurso: artículo
Fecha de publicación:2018
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:203577
Acceso en línea:https://ddd.uab.cat/record/203577
https://dx.doi.org/urn:doi:10.1093/aob/mcy039
Access Level:acceso abierto
Palabra clave:Climate change
Canopy dieback
Die-off
Drought
Mediterranean
Non-structural carbohydrates
Shrubland
Plant functional traits
Soluble sugars
Wood density
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spelling Non-structural carbohydrate dynamics associated with drought-induced die-off in woody species of a shrubland communityLloret, Francisco|||0000-0002-9836-4069Sapes, Gerard|||0000-0002-6017-2053Rosas, Teresa|||0000-0002-8734-9752Galiano, Lucía|||0000-0003-0123-1882Saura Mas, Sandra|||0000-0001-8539-427XSala, AnnaMartínez Vilalta, Jordi|||0000-0002-2332-7298Climate changeCanopy diebackDie-offDroughtMediterraneanNon-structural carbohydratesShrublandPlant functional traitsSoluble sugarsWood densityThe relationship between plant carbon economy and drought responses of co-occurring woody species can be assessed by comparing carbohydrate (C) dynamics following drought and rain periods, relating these dynamics to species' functional traits. We studied nine woody species coexisting in a continental Mediterranean shrubland that experienced severe drought effects followed by rain. During drought, NSC concentrations were overall lower in stems and roots of plants experiencing leaf loss, while SS decreases were smaller. Roots had higher NSC concentrations than stems. After the rain, NSC concentrations continued to decrease, while SS increased. Green foliage recovered after rain, particularly in plants previously experiencing higher leaf loss, independently of NSC concentrations during drought. Species with lower WD tended to have more SS during drought and lower SS increases after rain. In low-WD species, plants with severe leaf loss had lower NSC relative to undefoliated ones. No significant relationship was found between H or SLA and C content or dynamics. Our community-level study reveals that, while responses were species-specific, C stocks overall diminished in plants affected by prolonged drought and did not increase after a pulse of seasonal rain. Dynamics were faster for SS than NSC. We found limited depletion of SS, consistent with their role in basal metabolic, transport and signalling functions. In a scenario of increased drought under climate change, NSC stocks in woody plants are expected to decrease differentially in coexisting species, with potential implications for their adaptive abilities and community dynamics. 22018-01-0120182018-01-01Articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/203577https://dx.doi.org/urn:doi:10.1093/aob/mcy039reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengMinisterio de Economía y Competitividad https://doi.org/10.13039/501100003329 CGL2012-32965Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 CGL2015-67419-RMinisterio de Economía y Competitividad https://doi.org/10.13039/501100003329 CGL2014-53840-REDTMinisterio de Economía y Competitividad https://doi.org/10.13039/501100003329 CGL2013-46808-RAgència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2014/SGR-453open accesshttp://purl.org/coar/access_right/c_abf2Aquest material està protegit per drets d'autor i/o drets afins. Podeu utilitzar aquest material en funció del que permet la legislació de drets d'autor i drets afins d'aplicació al vostre cas. Per a d'altres usos heu d'obtenir permís del(s) titular(s) de drets.https://rightsstatements.org/vocab/InC/1.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:2035772026-06-06T12:50:31Z
dc.title.none.fl_str_mv Non-structural carbohydrate dynamics associated with drought-induced die-off in woody species of a shrubland community
title Non-structural carbohydrate dynamics associated with drought-induced die-off in woody species of a shrubland community
spellingShingle Non-structural carbohydrate dynamics associated with drought-induced die-off in woody species of a shrubland community
Lloret, Francisco|||0000-0002-9836-4069
Climate change
Canopy dieback
Die-off
Drought
Mediterranean
Non-structural carbohydrates
Shrubland
Plant functional traits
Soluble sugars
Wood density
title_short Non-structural carbohydrate dynamics associated with drought-induced die-off in woody species of a shrubland community
title_full Non-structural carbohydrate dynamics associated with drought-induced die-off in woody species of a shrubland community
title_fullStr Non-structural carbohydrate dynamics associated with drought-induced die-off in woody species of a shrubland community
title_full_unstemmed Non-structural carbohydrate dynamics associated with drought-induced die-off in woody species of a shrubland community
title_sort Non-structural carbohydrate dynamics associated with drought-induced die-off in woody species of a shrubland community
dc.creator.none.fl_str_mv Lloret, Francisco|||0000-0002-9836-4069
Sapes, Gerard|||0000-0002-6017-2053
Rosas, Teresa|||0000-0002-8734-9752
Galiano, Lucía|||0000-0003-0123-1882
Saura Mas, Sandra|||0000-0001-8539-427X
Sala, Anna
Martínez Vilalta, Jordi|||0000-0002-2332-7298
author Lloret, Francisco|||0000-0002-9836-4069
author_facet Lloret, Francisco|||0000-0002-9836-4069
Sapes, Gerard|||0000-0002-6017-2053
Rosas, Teresa|||0000-0002-8734-9752
Galiano, Lucía|||0000-0003-0123-1882
Saura Mas, Sandra|||0000-0001-8539-427X
Sala, Anna
Martínez Vilalta, Jordi|||0000-0002-2332-7298
author_role author
author2 Sapes, Gerard|||0000-0002-6017-2053
Rosas, Teresa|||0000-0002-8734-9752
Galiano, Lucía|||0000-0003-0123-1882
Saura Mas, Sandra|||0000-0001-8539-427X
Sala, Anna
Martínez Vilalta, Jordi|||0000-0002-2332-7298
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Climate change
Canopy dieback
Die-off
Drought
Mediterranean
Non-structural carbohydrates
Shrubland
Plant functional traits
Soluble sugars
Wood density
topic Climate change
Canopy dieback
Die-off
Drought
Mediterranean
Non-structural carbohydrates
Shrubland
Plant functional traits
Soluble sugars
Wood density
description The relationship between plant carbon economy and drought responses of co-occurring woody species can be assessed by comparing carbohydrate (C) dynamics following drought and rain periods, relating these dynamics to species' functional traits. We studied nine woody species coexisting in a continental Mediterranean shrubland that experienced severe drought effects followed by rain. During drought, NSC concentrations were overall lower in stems and roots of plants experiencing leaf loss, while SS decreases were smaller. Roots had higher NSC concentrations than stems. After the rain, NSC concentrations continued to decrease, while SS increased. Green foliage recovered after rain, particularly in plants previously experiencing higher leaf loss, independently of NSC concentrations during drought. Species with lower WD tended to have more SS during drought and lower SS increases after rain. In low-WD species, plants with severe leaf loss had lower NSC relative to undefoliated ones. No significant relationship was found between H or SLA and C content or dynamics. Our community-level study reveals that, while responses were species-specific, C stocks overall diminished in plants affected by prolonged drought and did not increase after a pulse of seasonal rain. Dynamics were faster for SS than NSC. We found limited depletion of SS, consistent with their role in basal metabolic, transport and signalling functions. In a scenario of increased drought under climate change, NSC stocks in woody plants are expected to decrease differentially in coexisting species, with potential implications for their adaptive abilities and community dynamics.
publishDate 2018
dc.date.none.fl_str_mv 2
2018-01-01
2018
2018-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/203577
https://dx.doi.org/urn:doi:10.1093/aob/mcy039
url https://ddd.uab.cat/record/203577
https://dx.doi.org/urn:doi:10.1093/aob/mcy039
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 CGL2012-32965
Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 CGL2015-67419-R
Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 CGL2014-53840-REDT
Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 CGL2013-46808-R
Agència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2014/SGR-453
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://rightsstatements.org/vocab/InC/1.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://rightsstatements.org/vocab/InC/1.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Dipòsit Digital de Documents de la UAB
instname:Universitat Autònoma de Barcelona
instname_str Universitat Autònoma de Barcelona
reponame_str Dipòsit Digital de Documents de la UAB
collection Dipòsit Digital de Documents de la UAB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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