Balancing the risks of hydraulic failure and carbon starvation: a twig scale analysis in declining Scots pine

14 páginas.- 6 figuras.- 1 tabla.- referencias

Bibliographic Details
Authors: Salmon, Yann, Torres Ruiz, José Manuel, Poyatos, Rafael, Martínez-Vilalta, Jordi, Meir, Patrick, Cochard, Hervé, Mencuccini, Maurizio
Format: article
Status:Published version
Publication Date:2015
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/377708
Online Access:http://hdl.handle.net/10261/377708
Access Level:Open access
Keyword:Drought
Ecophysiology
Leaf gas exchange
Mortality
NSC
Photosynthesis
Transpiration
Tree
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spelling Balancing the risks of hydraulic failure and carbon starvation: a twig scale analysis in declining Scots pineSalmon, YannTorres Ruiz, José ManuelPoyatos, RafaelMartínez-Vilalta, JordiMeir, PatrickCochard, HervéMencuccini, MaurizioDroughtEcophysiologyLeaf gas exchangeMortalityNSCPhotosynthesisTranspirationTree14 páginas.- 6 figuras.- 1 tabla.- referenciasUnderstanding physiological processes involved in drought-induced mortality is important for predicting the future of forests and for modelling the carbon and water cycles. Recent research has highlighted the variable risks of carbon starvation and hydraulic failure in drought-exposed trees. However, little is known about the specific responses of leaves and supporting twigs, despite their critical role in balancing carbon acquisition and water loss. Comparing healthy (non-defoliated) and unhealthy (defoliated) Scots pine at the same site, we measured the physiological variables involved in regulating carbon and water resources. Defoliated trees showed different responses to summer drought compared with non-defoliated trees. Defoliated trees maintained gas exchange while non-defoliated trees reduced photosynthesis and transpiration during the drought period. At the branch scale, very few differences were observed in non-structural carbohydrate concentrations between health classes. However, defoliated trees tended to have lower water potentials and smaller hydraulic safety margins. While non-defoliated trees showed a typical response to drought for an isohydric species, the physiology appears to be driven in defoliated trees by the need to maintain carbon resources in twigs. These responses put defoliated trees at higher risk of branch hydraulic failure and help explain the interaction between carbon starvation and hydraulic failure in dying trees.This research was funded by the Natural Environment Research Council (NERC) grant NE/I011749/1 to M.M. and P.M. and the Spanish MICINN grants CGL2010-16373 and CSD2008-0004; P.M. was also supported by ARC grant FT110100457. Y.S. was funded by NERC (RA0929 to M.M.) and R.P. by a Juan de la Cierva postdoctoral fellowship. J.M.T.-R. and part of this work were supported by an STSM Grant from COST Action FP1106 (STReESS)Peer reviewedJohn Wiley & SonsNatural Environment Research Council (UK)Ministerio de Ciencia e Innovación (España)Agencia Estatal de Investigación (España)Australian Research CouncilTorres Ruiz, José Manuel [0000-0003-1367-7056]Poyatos, Rafael [0000-0003-0521-2523]Martínez-Vilalta, Jordi [0000-0002-2332-7298]Meir, Patrick [0000-0002-2362-0398]Cochard, H. [0000-0002-2727-7072]Mencuccini, Maurizio [0000-0003-0840-1477]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202520252015info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/377708reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MICINN//CGL2010-16373info:eu-repo/grantAgreement/MICINN//CSD2008-0004http://dx.doi.org/10.1111/pce.12572Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3777082026-05-22T06:33:51Z
dc.title.none.fl_str_mv Balancing the risks of hydraulic failure and carbon starvation: a twig scale analysis in declining Scots pine
title Balancing the risks of hydraulic failure and carbon starvation: a twig scale analysis in declining Scots pine
spellingShingle Balancing the risks of hydraulic failure and carbon starvation: a twig scale analysis in declining Scots pine
Salmon, Yann
Drought
Ecophysiology
Leaf gas exchange
Mortality
NSC
Photosynthesis
Transpiration
Tree
title_short Balancing the risks of hydraulic failure and carbon starvation: a twig scale analysis in declining Scots pine
title_full Balancing the risks of hydraulic failure and carbon starvation: a twig scale analysis in declining Scots pine
title_fullStr Balancing the risks of hydraulic failure and carbon starvation: a twig scale analysis in declining Scots pine
title_full_unstemmed Balancing the risks of hydraulic failure and carbon starvation: a twig scale analysis in declining Scots pine
title_sort Balancing the risks of hydraulic failure and carbon starvation: a twig scale analysis in declining Scots pine
dc.creator.none.fl_str_mv Salmon, Yann
Torres Ruiz, José Manuel
Poyatos, Rafael
Martínez-Vilalta, Jordi
Meir, Patrick
Cochard, Hervé
Mencuccini, Maurizio
author Salmon, Yann
author_facet Salmon, Yann
Torres Ruiz, José Manuel
Poyatos, Rafael
Martínez-Vilalta, Jordi
Meir, Patrick
Cochard, Hervé
Mencuccini, Maurizio
author_role author
author2 Torres Ruiz, José Manuel
Poyatos, Rafael
Martínez-Vilalta, Jordi
Meir, Patrick
Cochard, Hervé
Mencuccini, Maurizio
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Natural Environment Research Council (UK)
Ministerio de Ciencia e Innovación (España)
Agencia Estatal de Investigación (España)
Australian Research Council
Torres Ruiz, José Manuel [0000-0003-1367-7056]
Poyatos, Rafael [0000-0003-0521-2523]
Martínez-Vilalta, Jordi [0000-0002-2332-7298]
Meir, Patrick [0000-0002-2362-0398]
Cochard, H. [0000-0002-2727-7072]
Mencuccini, Maurizio [0000-0003-0840-1477]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Drought
Ecophysiology
Leaf gas exchange
Mortality
NSC
Photosynthesis
Transpiration
Tree
topic Drought
Ecophysiology
Leaf gas exchange
Mortality
NSC
Photosynthesis
Transpiration
Tree
description 14 páginas.- 6 figuras.- 1 tabla.- referencias
publishDate 2015
dc.date.none.fl_str_mv 2015
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/377708
url http://hdl.handle.net/10261/377708
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MICINN//CGL2010-16373
info:eu-repo/grantAgreement/MICINN//CSD2008-0004
http://dx.doi.org/10.1111/pce.12572
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv John Wiley & Sons
publisher.none.fl_str_mv John Wiley & Sons
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869425427766837248
score 15,811543

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