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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 |