Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.14279/9126
DC FieldValueLanguage
dc.contributor.authorZarza, Xavier-
dc.contributor.authorAtanasov, Kostadin E.-
dc.contributor.authorMarco, Francisco-
dc.contributor.authorArbona, Vicent-
dc.contributor.authorCarrasco, Pedro-
dc.contributor.authorKopka, Joachim-
dc.contributor.authorFotopoulos, Vasileios-
dc.contributor.authorMunnik, Teun-
dc.contributor.authorGómez-Cadenas, Aurelio-
dc.contributor.authorTiburcio, Antonio F.-
dc.contributor.authorAlcázar, Rubén-
dc.date.accessioned2017-01-18T15:20:00Z-
dc.date.available2017-01-18T15:20:00Z-
dc.date.issued2017-04-
dc.identifier.citationPlant, Cell and Environment, 2017, vol. 40, no. 4, pp. 527-542en_US
dc.identifier.issn13653040-
dc.identifier.urihttps://hdl.handle.net/20.500.14279/9126-
dc.description.abstractThe family of polyamine oxidases (PAO) in Arabidopsis (AtPAO1-5) mediates polyamine (PA) back-conversion, which reverses the PA biosynthetic pathway from spermine and its structural isomer thermospermine (tSpm) into spermidine and then putrescine. Here, we have studied the involvement of PA back-conversion in Arabidopsis salinity tolerance. AtPAO5 is the Arabidopsis PAO gene member most transcriptionally induced by salt stress. Two independent loss-of-function mutants (atpao5-2 and atpao5-3) were found to exhibit constitutively higher tSpm levels, with associated increased salt tolerance. Using global transcriptional and metabolomic analyses, the underlying mechanisms were studied. Stimulation of abscisic acid and jasmonate (JA) biosynthesis and accumulation of important compatible solutes, such as sugars, polyols and proline, as well as TCA cycle intermediates were observed in atpao5 mutants under salt stress. Expression analyses indicate that tSpm modulates the transcript levels of several target genes, including many involved in the biosynthesis and signalling of JA, some of which are already known to promote salinity tolerance. Transcriptional modulation by tSpm is isomer-dependent, thus demonstrating the specificity of this response. Overall, we conclude that tSpm triggers metabolic and transcriptional reprogramming that promotes salt stress tolerance in Arabidopsis.en_US
dc.formatpdfen_US
dc.language.isoenen_US
dc.relation.ispartofPlant, Cell and Environmenten_US
dc.rights© Wileyen_US
dc.subjectJasmonatesen_US
dc.subjectPolyaminesen_US
dc.subjectMetabolomicsen_US
dc.subjectSalt toleranceen_US
dc.subjectThermospermineen_US
dc.titlePolyamine oxidase 5 loss-of-function mutations in Arabidopsis thaliana trigger metabolic and transcriptional reprogramming and promote salt stress toleranceen_US
dc.typeArticleen_US
dc.collaborationUniversity of Barcelonaen_US
dc.collaborationUniversity of Amsterdamen_US
dc.collaborationUniversidad de Valenciaen_US
dc.collaborationUniversitat Jaume Ien_US
dc.collaborationMax Planck Instituteen_US
dc.collaborationCyprus University of Technologyen_US
dc.subject.categoryAgriculture Forestry and Fisheriesen_US
dc.journalsSubscriptionen_US
dc.countrySpainen_US
dc.countryNetherlandsen_US
dc.countryGermanyen_US
dc.countryCyprusen_US
dc.subject.fieldAgricultural Sciencesen_US
dc.publicationPeer Revieweden_US
dc.identifier.doi10.1111/pce.12714en_US
dc.relation.issue4en_US
dc.relation.volume40en_US
cut.common.academicyear2016-2017en_US
dc.identifier.spage527en_US
dc.identifier.epage542en_US
item.fulltextNo Fulltext-
item.languageiso639-1en-
item.grantfulltextnone-
item.openairecristypehttp://purl.org/coar/resource_type/c_6501-
item.cerifentitytypePublications-
item.openairetypearticle-
crisitem.journal.journalissn1365-3040-
crisitem.journal.publisherWiley-
crisitem.author.deptDepartment of Agricultural Sciences, Biotechnology and Food Science-
crisitem.author.facultyFaculty of Geotechnical Sciences and Environmental Management-
crisitem.author.orcid0000-0003-1205-2070-
crisitem.author.parentorgFaculty of Geotechnical Sciences and Environmental Management-
Appears in Collections:Άρθρα/Articles
CORE Recommender
Show simple item record

SCOPUSTM   
Citations

59
checked on Nov 9, 2023

WEB OF SCIENCETM
Citations 20

53
Last Week
0
Last month
0
checked on Oct 29, 2023

Page view(s)

509
Last Week
0
Last month
38
checked on Mar 14, 2025

Google ScholarTM

Check

Altmetric


Items in KTISIS are protected by copyright, with all rights reserved, unless otherwise indicated.