Most stomatal closure in woody species under moderate drought can be explained by stomatal responses to leaf turgo

Rodríguez Domínguez, Celia M.; Buckley, Thomas N.; Egea, Gustavo; Cires, A. de; Hernández Santana, V.; Martorell, Sebastià; Díaz-Espejo, Antonio; Ministerio de Ciencia e Innovación (España)

Most stomatal closure in woody species under moderate drought can be explained by stomatal responses to leaf turgo

13 páginas.-- 6 figuras.-- 93 referencias.-- Additional Supporting Informationmay be found in the online version of this article at the publisher’s web-site: http://dx.doi.org/10.1007/01407791

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Bibliographic Details
Main Authors:	Rodríguez Domínguez, Celia M., Buckley, Thomas N., Egea, Gustavo, Cires, A. de, Hernández Santana, V., Martorell, Sebastià, Díaz-Espejo, Antonio
Other Authors:	Ministerio de Ciencia e Innovación (España)
Format:	artículo biblioteca
Language:	English
Published:	Blackwell Publishing 2016
Subjects:	Abscisic acid, Isohydric, Process-based model, Stomata, Stomatal limitation, Transpiration, Water stress,
Online Access:	http://hdl.handle.net/10261/135357 http://dx.doi.org/10.13039/501100004837 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/100000001 http://dx.doi.org/10.13039/501100000923 http://dx.doi.org/10.13039/501100011011
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spelling	dig-irnas-es-10261-1353572018-09-11T07:56:17Z Most stomatal closure in woody species under moderate drought can be explained by stomatal responses to leaf turgo Rodríguez Domínguez, Celia M. Buckley, Thomas N. Egea, Gustavo Cires, A. de Hernández Santana, V. Martorell, Sebastià Díaz-Espejo, Antonio Ministerio de Ciencia e Innovación (España) European Commission National Science Foundation (US) Australian Research Council Junta de Andalucía Abscisic acid Isohydric Process-based model Stomata Stomatal limitation Transpiration Water stress 13 páginas.-- 6 figuras.-- 93 referencias.-- Additional Supporting Informationmay be found in the online version of this article at the publisher’s web-site: http://dx.doi.org/10.1007/01407791 Reduced stomatal conductance (gs) during soil drought in angiosperms may result from effects of leaf turgor on stomata and/or factors that do not directly depend on leaf turgor, including root-derived abscisic acid (ABA) signals. To quantify the roles of leaf turgor-mediated and leaf turgor-independent mechanisms in gs decline during drought, we measured drought responses of gs and water relations in three woody species (almond, grapevine and olive) under a range of conditions designed to generate independent variation in leaf and root turgor, including diurnal variation in evaporative demand and changes in plant hydraulic conductance and leaf osmotic pressure. We then applied these data to a process-based gs model and used a novel method to partition observed declines in gs during drought into contributions from each parameter in the model. Soil drought reduced gs by 63-84% across species, and the model reproduced these changes well (r2=0.91, P<0.0001, n=44) despite having only a single fitted parameter. Our analysis concluded that responses mediated by leaf turgor could explain over 87% of the observed decline in gs across species, adding to a growing body of evidence that challenges the root ABA-centric model of stomatal responses to drought. This work was funded by the Spanish Ministry of Science and innovation (research projects AGL2009-11310/AGR and AGL2012-34544/AGR) and co-funded by the FEDER programme. T.N.B. was supported by the National Science Foundation (award # 1146514) and the Australian Research Council (DP150103863 and LP130101183). C.M.R-D. benefited from an FPDI research fellowship from the Junta de Andalucía. We are grateful to A. Montero and A. Perez-Martin for assistance in the field. Peer reviewed 2016-08-05T10:12:12Z 2016-08-05T10:12:12Z 2016 artículo http://purl.org/coar/resource_type/c_6501 Plant Cell and Environment 2016 (Article in press) 0140-7791 http://hdl.handle.net/10261/135357 10.1111/pce.12774 http://dx.doi.org/10.13039/501100004837 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/100000001 http://dx.doi.org/10.13039/501100000923 http://dx.doi.org/10.13039/501100011011 en http://dx.doi.org/10.1007/01407791 Sí none Blackwell Publishing John Wiley & Sons
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	Abscisic acid Isohydric Process-based model Stomata Stomatal limitation Transpiration Water stress Abscisic acid Isohydric Process-based model Stomata Stomatal limitation Transpiration Water stress
spellingShingle	Abscisic acid Isohydric Process-based model Stomata Stomatal limitation Transpiration Water stress Abscisic acid Isohydric Process-based model Stomata Stomatal limitation Transpiration Water stress Rodríguez Domínguez, Celia M. Buckley, Thomas N. Egea, Gustavo Cires, A. de Hernández Santana, V. Martorell, Sebastià Díaz-Espejo, Antonio Most stomatal closure in woody species under moderate drought can be explained by stomatal responses to leaf turgo
description	13 páginas.-- 6 figuras.-- 93 referencias.-- Additional Supporting Informationmay be found in the online version of this article at the publisher’s web-site: http://dx.doi.org/10.1007/01407791
author2	Ministerio de Ciencia e Innovación (España)
author_facet	Ministerio de Ciencia e Innovación (España) Rodríguez Domínguez, Celia M. Buckley, Thomas N. Egea, Gustavo Cires, A. de Hernández Santana, V. Martorell, Sebastià Díaz-Espejo, Antonio
format	artículo
topic_facet	Abscisic acid Isohydric Process-based model Stomata Stomatal limitation Transpiration Water stress
author	Rodríguez Domínguez, Celia M. Buckley, Thomas N. Egea, Gustavo Cires, A. de Hernández Santana, V. Martorell, Sebastià Díaz-Espejo, Antonio
author_sort	Rodríguez Domínguez, Celia M.
title	Most stomatal closure in woody species under moderate drought can be explained by stomatal responses to leaf turgo
title_short	Most stomatal closure in woody species under moderate drought can be explained by stomatal responses to leaf turgo
title_full	Most stomatal closure in woody species under moderate drought can be explained by stomatal responses to leaf turgo
title_fullStr	Most stomatal closure in woody species under moderate drought can be explained by stomatal responses to leaf turgo
title_full_unstemmed	Most stomatal closure in woody species under moderate drought can be explained by stomatal responses to leaf turgo
title_sort	most stomatal closure in woody species under moderate drought can be explained by stomatal responses to leaf turgo
publisher	Blackwell Publishing
publishDate	2016
url	http://hdl.handle.net/10261/135357 http://dx.doi.org/10.13039/501100004837 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/100000001 http://dx.doi.org/10.13039/501100000923 http://dx.doi.org/10.13039/501100011011
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Most stomatal closure in woody species under moderate drought can be explained by stomatal responses to leaf turgo

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