Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/135357
COMPARTIR / EXPORTAR:
logo share SHARE logo core CORE BASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE

Invitar a revisión por pares abierta
Título

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

AutorRodríguez-Domínguez, Celia M. CSIC ORCID; Buckley, Thomas N.; Egea, Gustavo; Cires, A. de; Hernández Santana, V.; Martorell, Sebastià; Díaz-Espejo, Antonio CSIC ORCID
Palabras claveAbscisic acid
Isohydric
Process-based model
Stomata
Stomatal limitation
Transpiration
Water stress
Fecha de publicación2016
EditorBlackwell Publishing
John Wiley & Sons
CitaciónPlant Cell and Environment 2016 (Article in press)
ResumenReduced 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.
Descripción13 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
Versión del editorhttp://dx.doi.org/10.1007/01407791
URIhttp://hdl.handle.net/10261/135357
DOI10.1111/pce.12774
ISSN0140-7791
Aparece en las colecciones: (IRNAS) Artículos




Ficheros en este ítem:
Fichero Descripción Tamaño Formato
accesoRestringido.pdf15,38 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo

CORE Recommender

SCOPUSTM   
Citations

122
checked on 10-mar-2024

WEB OF SCIENCETM
Citations

118
checked on 27-feb-2024

Page view(s)

171
checked on 18-mar-2024

Download(s)

59
checked on 18-mar-2024

Google ScholarTM

Check

Altmetric

Altmetric


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.