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Authors Tattini, M; Traversi, ML; Castelli, S; Biricolti, S; Guidi, L; Massai, R
Author Full Name Tattini, Massimiliano; Traversi, Maria Laura; Castelli, Silvana; Biricolti, Stefano; Guidi, Lucia; Massai, Rossano
Title Contrasting response mechanisms to root-zone salinity in three co-occurring Mediterranean woody evergreens: a physiological and biochemical study
Source FUNCTIONAL PLANT BIOLOGY
Language English
Document Type Article
Author Keywords gas exchange; ionic and water relations; lipid peroxidation; polyphenol metabolism; PSII photochemistry; superoxide dismutase
Keywords Plus LEAF WATER RELATIONS; PHILLYREA-LATIFOLIA; XANTHOPHYLL CYCLE; GAS-EXCHANGE; SALT TOLERANCE; ENERGY-DISSIPATION; PISTACIA-LENTISCUS; LIGUSTRUM-VULGARE; SOLAR IRRADIANCE; OLIVE CULTIVARS
Abstract The present study investigated the extent to which physiological and biochemical traits varied because of root-zone salinity in three Mediterranean evergreens differing greatly in their strategies of salt allocation at an organismal level: the 'salt-excluders', Olea europaea L. and Phillyrea latifolia L. (both Oleaceae), and Pistacia lentiscus L., which, instead, largely uses Na+ and Cl- for osmotic adjustment. Both Oleaceae spp. underwent severe leaf dehydration and reduced net photosynthesis and whole-plant growth to a significantly greater degree than did P. lentiscus. Osmotic adjustment in Oleaceae mostly resulted from soluble carbohydrates, which, in turn, likely feedback regulated net photosynthesis. Salt stress reduced the actual efficiency of PSII photochemistry (Phi(PSII)) and enhanced the concentration of de-epoxided violaxanthin-cycle pigments in O. europaea and P. latifolia. Phenylpropanoid metabolism was upregulated by salt stress to a markedly greater degree in O. europaea and P. latifolia than in P. lentiscus. In contrast, species-specific variations in leaf lipid peroxidation were not observed in response to salinity stress. The results suggest that the species-specific ability to manage the allocation of potentially toxic ions out of sensitive leaf organs, other than affecting physiological responses, largely determined the extent to which leaf biochemistry, mostly aimed to counter salt-induced oxidative damage, varied in response to salinity stress.
Author Address [Tattini, Massimiliano; Traversi, Maria Laura] CNR, Ist Valorizzaz Legno & Specie Legnose, I-50019 Florence, Italy; [Tattini, Massimiliano; Biricolti, Stefano] Univ Florence, Dipartimento Ortoflorofrutticoltura, I-50019 Florence, Italy; [Castelli, Silvana] CNR, Ist Biotecnol & Biol Agr, I-20110 Milan, Italy; [Guidi, Lucia] Univ Pisa, Dipartimento Chim & Biotecnol Agr, I-56124 Pisa, Italy; [Massai, Rossano] Univ Pisa, Dipartimento Difesa & Coltivaz Specie Legnose, I-56124 Pisa, Italy
Reprint Address Tattini, M (corresponding author), CNR, Ist Valorizzaz Legno & Specie Legnose, Via Madonna Piano 10, I-50019 Florence, Italy.
E-mail Address m.tattini@ivalsa.cnr.it
ResearcherID Number Tattini, Massimiliano/K-1238-2019; Biricolti, Stefano/F-7120-2010; MASSAI, ROSSANO/A-7497-2018
ORCID Number Tattini, Massimiliano/0000-0001-5434-8860; GUIDI, LUCIA/0000-0002-2472-720X; MASSAI, ROSSANO/0000-0002-0182-957X
Times Cited 11
Total Times Cited Count (WoS, BCI, and CSCD) 11
Publisher CSIRO PUBLISHING
Publisher City CLAYTON
Publisher Address UNIPARK, BLDG 1, LEVEL 1, 195 WELLINGTON RD, LOCKED BAG 10, CLAYTON, VIC 3168, AUSTRALIA
ISSN 1445-4408
29-Character Source Abbreviation FUNCT PLANT BIOL
ISO Source Abbreviation Funct. Plant Biol.
Year Published 2009
Volume 36
Issue 6
Beginning Page 551
Ending Page 563
Digital Object Identifier (DOI) 10.1071/FP09054
Page Count 13
Web of Science Category Plant Sciences
Subject Category Plant Sciences
Document Delivery Number 461EK
Unique Article Identifier WOS:000267247200008
Plants associated with this reference

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