Are northern-edge populations of cork oak more sensitive to drought than those of the southern edge?

Are northern-edge populations of cork oak more sensitive to drought than those of the southern edge?

8 páginas.- 5 figuras.- 1 tabla.- 77 referencias.- Supplementary material related to this article can be found, in the online version, at Doi: https://doi.org/10.1016/j.envexpbot.2019.04.011

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Main Authors: Matías Resina, Luis, Pérez-Ramos, Ignacio Manuel, Gómez Aparicio, Lorena
Other Authors: Ministerio de Economía y Competitividad (España)
Format: artículo biblioteca
Language:English
Published: Elsevier 2019-07
Subjects:Biomass allocation, Functional traits, Local adaptation, Phenotypic plasticity, Photosynthesis, Range edge,
Online Access:http://hdl.handle.net/10261/180298
http://dx.doi.org/10.13039/501100003329
http://dx.doi.org/10.13039/501100007064
http://dx.doi.org/10.13039/501100000409
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spelling dig-irnas-es-10261-1802982020-10-09T12:33:45Z Are northern-edge populations of cork oak more sensitive to drought than those of the southern edge? Matías Resina, Luis Pérez-Ramos, Ignacio Manuel Gómez Aparicio, Lorena Ministerio de Economía y Competitividad (España) British Ecological Society Universidad de Jaén Matías Resina, Luis [0000-0001-5603-5390] Gómez Aparicio, Lorena [0000-0001-5122-3579] Pérez-Ramos, Ignacio Manuel [0000-0003-2332-7818] Biomass allocation Functional traits Local adaptation Phenotypic plasticity Photosynthesis Range edge 8 páginas.- 5 figuras.- 1 tabla.- 77 referencias.- Supplementary material related to this article can be found, in the online version, at Doi: https://doi.org/10.1016/j.envexpbot.2019.04.011 The changes in climate registered at the planetary scale threaten the persistence of current populations for many plant species, with effects particularly evident at the edges of species distributions. However, intraspecific differences in functional traits could modulate the plant responses to the expected increase in drought. Using a traitbased approach, we evaluated under controlled conditions how Quercus suber seedlings from the latitudinal edges of the distribution range of the species respond to different watering treatments in terms of vegetative growth and biomass allocation. In addition, we simulated an extreme drought by stopping watering until death to determine chemical and physiological traits under drought stress and to identify which morphological traits were more associated to drought resistance (expressed as survival time without watering). Seedlings from the northern provenance presented higher aboveground biomass allocation (i.e. shoot length and biomass allocation to shoot and leaves), while the southern ones were characterised by longer roots and higher biomass allocation to roots. Under extreme drought, seedlings from the southern provenance maintained higher photosynthetic rates than northern seedlings and were able to modulate their water-use efficiency (estimated from δ13C) depending on environmental conditions, which allowed them to survive for a longer period. Finally, drought resistance was partially explained by the plant biomass allocation pattern. Traits related to growth in height and light interception were negatively related with drought resistance, whereas traits involving investment in root biomass were positively related with resistance. These geographical differences evidence a local adaptation to drought at the southern edge of Q. suber distribution. Our results highlight the importance of the conservation of the genetic resources that peripheral populations harbour at distribution edges. This research was funded by a Large Research Grant (6007210) awarded from the British Ecological Societyand by a fellowship Plan 6-UJA (EI_RNM4_2017) to L.M. I.M.P.R and L.G.A. also thank support from the MICINN projects DECAFUN(CGL2015-70123-R) and INTERCAPA (CGL-2014-703 56739-R) Peer reviewed 2019-04-22T08:52:19Z 2019-04-22T08:52:19Z 2019-07 artículo http://purl.org/coar/resource_type/c_6501 Environmental and Experimental Botany163: 78-85 (2019) 0098-8472 http://hdl.handle.net/10261/180298 10.1016/j.envexpbot.2019.04.011 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/501100007064 http://dx.doi.org/10.13039/501100000409 en #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL2015-70123-R info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CGL2014-56739-R Preprint http://dx.doi.org/10.1016/j.envexpbot.2019.04.011 Sí open Elsevier
institution IRNAS ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-irnas-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del IRNAS España
language English
topic Biomass allocation
Functional traits
Local adaptation
Phenotypic plasticity
Photosynthesis
Range edge
Biomass allocation
Functional traits
Local adaptation
Phenotypic plasticity
Photosynthesis
Range edge
spellingShingle Biomass allocation
Functional traits
Local adaptation
Phenotypic plasticity
Photosynthesis
Range edge
Biomass allocation
Functional traits
Local adaptation
Phenotypic plasticity
Photosynthesis
Range edge
Matías Resina, Luis
Pérez-Ramos, Ignacio Manuel
Gómez Aparicio, Lorena
Are northern-edge populations of cork oak more sensitive to drought than those of the southern edge?
description 8 páginas.- 5 figuras.- 1 tabla.- 77 referencias.- Supplementary material related to this article can be found, in the online version, at Doi: https://doi.org/10.1016/j.envexpbot.2019.04.011
author2 Ministerio de Economía y Competitividad (España)
author_facet Ministerio de Economía y Competitividad (España)
Matías Resina, Luis
Pérez-Ramos, Ignacio Manuel
Gómez Aparicio, Lorena
format artículo
topic_facet Biomass allocation
Functional traits
Local adaptation
Phenotypic plasticity
Photosynthesis
Range edge
author Matías Resina, Luis
Pérez-Ramos, Ignacio Manuel
Gómez Aparicio, Lorena
author_sort Matías Resina, Luis
title Are northern-edge populations of cork oak more sensitive to drought than those of the southern edge?
title_short Are northern-edge populations of cork oak more sensitive to drought than those of the southern edge?
title_full Are northern-edge populations of cork oak more sensitive to drought than those of the southern edge?
title_fullStr Are northern-edge populations of cork oak more sensitive to drought than those of the southern edge?
title_full_unstemmed Are northern-edge populations of cork oak more sensitive to drought than those of the southern edge?
title_sort are northern-edge populations of cork oak more sensitive to drought than those of the southern edge?
publisher Elsevier
publishDate 2019-07
url http://hdl.handle.net/10261/180298
http://dx.doi.org/10.13039/501100003329
http://dx.doi.org/10.13039/501100007064
http://dx.doi.org/10.13039/501100000409
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AT perezramosignaciomanuel arenorthernedgepopulationsofcorkoakmoresensitivetodroughtthanthoseofthesouthernedge
AT gomezapariciolorena arenorthernedgepopulationsofcorkoakmoresensitivetodroughtthanthoseofthesouthernedge
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