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Abstract
Cadmium is one of the most important contaminants and it induces severe plant growth restriction. In this study, we analyzed the metabolic changes associated with root growth restriction caused by cadmium in the early seminal root apex of wheat. Our study included two genotypes: the commercial variety ProINTA Federal (WT) and the PSARK::IPT (IPT) line which exhibit high-grade yield performance under water deficit. Root tips of seedlings grown for 72 h [ver mas...]
dc.contributor.authorGomez Mansur, Nabila M.
dc.contributor.authorPena, Liliana Beatriz
dc.contributor.authorBossio, Adrian Ezequiel
dc.contributor.authorLewi, Dalia Marcela
dc.contributor.authorBeznec, Ailin
dc.contributor.authorBlumwald, Eduardo
dc.contributor.authorArbona, Vicent
dc.contributor.authorGómez-Cadenas, Aurelio
dc.contributor.authorBenavides, María Patricia
dc.contributor.authorGallego, Susana Mabel
dc.date.accessioned2021-08-25T11:59:20Z
dc.date.available2021-08-25T11:59:20Z
dc.date.issued2021-09
dc.identifier.issn1399-3054
dc.identifier.otherhttps://doi.org/10.1111/ppl.13366
dc.identifier.urihttp://hdl.handle.net/20.500.12123/10113
dc.identifier.urihttps://onlinelibrary.wiley.com/doi/10.1111/ppl.13366
dc.description.abstractCadmium is one of the most important contaminants and it induces severe plant growth restriction. In this study, we analyzed the metabolic changes associated with root growth restriction caused by cadmium in the early seminal root apex of wheat. Our study included two genotypes: the commercial variety ProINTA Federal (WT) and the PSARK::IPT (IPT) line which exhibit high-grade yield performance under water deficit. Root tips of seedlings grown for 72 h without or with 10 μM CdCl2 (Cd-WT and Cd-IPT) were compared. Root length reduction was more severe in Cd-WT than Cd-IPT. Cd decreased superoxide dismutase activity in both lines and increased catalase activity only in the WT. In Cd-IPT, ascorbate and guaiacol peroxidase activities raised compared to Cd-WT. The hormonal homeostasis was altered by the metal, with significant decreases in abscisic acid, jasmonic acid, 12-oxophytodienoic acid, gibberellins GA20, and GA7 levels. Increases in flavonoids and phenylamides were also found. Root growth impairment was not associated with a decrease in expansin (EXP) transcripts. On the contrary, TaEXPB8 expression increased in the WT treated by Cd. Our findings suggest that the line expressing the PSARK::IPT construction increased the homeostatic range to cope with Cd stress, which is visible by a lesser reduction of the root elongation compared to WT plants. The decline of root growth produced by Cd was associated with hormonal imbalance at the root apex level. We hypothesize that activation of phenolic secondary metabolism could enhance antioxidant defenses and contribute to cell wall reinforcement to deal with Cd toxicity.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherWileyes_AR
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.sourcePhysiologia Plantarum 173 (1) : 223-234 (Septiembre 2021)es_AR
dc.subjectWheateng
dc.subjectTrigoes_AR
dc.subjectTriticumes_AR
dc.subjectMetaboliteseng
dc.subjectMetabolitoses_AR
dc.subjectStresseng
dc.subjectEstreses_AR
dc.subjectCadmiumeng
dc.subjectCadmioes_AR
dc.subjectGenotypeseng
dc.subjectGenotiposes_AR
dc.subjectWater Deprivationeng
dc.subjectPrivación del Aguaes_AR
dc.subjectRootseng
dc.subjectRaíceses_AR
dc.subjectTransferaseseng
dc.subjectTransferasases_AR
dc.subjectTransgenic Plantseng
dc.subjectPlantas transgénicases_AR
dc.titleAn isopentenyl transferase transgenic wheat isoline exhibits less seminal root growth impairment and a differential metabolite profile under Cd stresses_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.description.origenInstituto de Genéticaes_AR
dc.description.filFil: Gomez Mansur, Nabila M. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentinaes_AR
dc.description.filFil: Gomez Mansur, Nabila M. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.description.filFil: Pena, Liliana Beatriz. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentinaes_AR
dc.description.filFil: Pena, Liliana Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.description.filFil: Bossio, Adrian Ezequiel. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; Argentinaes_AR
dc.description.filFil: Lewi, Dalia Marcela. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; Argentinaes_AR
dc.description.filFil: Beznec, Ailin. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Genética; Argentinaes_AR
dc.description.filFil: Blumwald, Eduardo. University of California. Department of Plant Sciences; Estados Unidoses_AR
dc.description.filFil: Arbona, Vicent. Universitat Jaume I. Departament de Ciències Agràries i del Medi Natural, Ecofisiologia i Biotecnologia; Españaes_AR
dc.description.filFil: Gómez-Cadenas, Aurelio. Universitat Jaume I. Departament de Ciències Agràries i del Medi Natural, Ecofisiologia i Biotecnologia; Españaes_AR
dc.description.filFil: Benavides, María Patricia. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentinaes_AR
dc.description.filFil: Benavides, María Patricia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.description.filFil: Gallego, Susana Mabel. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentinaes_AR
dc.description.filFil: Gallego, Susana Mabel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentinaes_AR
dc.subtypecientifico


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