Web of Science: 52 citations, Scopus: 64 citations, Google Scholar: citations,
Water potential regulation, stomatal behaviour and hydraulic transport under drought : deconstructing the iso/anisohydric concept
Martínez Vilalta, Jordi, 1975- (Centre de Recerca Ecològica i Aplicacions Forestals)
García Forner, Núria (Centre de Recerca Ecològica i Aplicacions Forestals)

Date: 2017
Abstract: In this review, we address the relationship between stomatal behaviour, water potential regulation and hydraulic transport in plants, focusing on the implications for the iso/anisohydric classification of plant drought responses at seasonal timescales. We first revise the history of the isohydric concept and its possible definitions. Then, we use published data to answer two main questions: (1) is greater stomatal control in response to decreasing water availability associated with a tighter regulation of leaf water potential (ΨL ) across species? and (2) is there an association between tighter ΨL regulation (~isohydric behaviour) and lower leaf conductance over time during a drought event? These two questions are addressed at two levels: across species growing in different sites and comparing only species coexisting at a given site. Our analyses show that, across species, a tight regulation of ΨL is not necessarily associated with greater stomatal control or with more constrained assimilation during drought. Therefore, iso/anisohydry defined in terms of ΨL regulation cannot be used as an indicator of a specific mechanism of drought-induced mortality or as a proxy for overall plant vulnerability to drought.
Note: Altres ajuts: JMV benefits from an ICREA Academia award.
Note: Número d'acord de subvenció MINECO/CGL2013-46808-R
Note: Número d'acord de subvenció MINECO/CGL2010-16373
Rights: Tots els drets reservats
Language: Anglès.
Document: article ; recerca ; submittedVersion
Subject: Anisohydry ; Embolism ; Hydraulic architecture ; Isohydry ; Plant strategies ; Seasonal responses ; Stomata ; Water relations ; Xylem transport
Published in: Plant, cell & environment, Vol. 40, issue 6 (June 2017) , p. 962–976, ISSN 0140-7791

DOI: 10.1111/pce.12846


Post-print
69 p, 2.7 MB

The record appears in these collections:
Research literature > UAB research groups literature > Research Centres and Groups (scientific output) > Experimental sciences > CREAF (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Articles > Research articles
Articles > Published articles

 Record created 2018-02-27, last modified 2019-02-02



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