Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/347509
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dc.contributor.CRUESPUNIVERSIDADE ESTADUAL DE CAMPINASpt_BR
dc.contributor.authorunicampMatiolli, Cleverson Carlos-
dc.contributor.authorunicampDuarte, Gustavo Turqueto-
dc.contributor.authorunicampDel Bem, Luiz Eduardo Vieira-
dc.contributor.authorunicampSilveira, Amanda Bortolini-
dc.contributor.authorunicampViana, Américo José Carvalho-
dc.contributor.authorunicampVincentz, Michel Georges Albert-
dc.typeArtigopt_BR
dc.titleThe Arabidopsis bZIP Gene AtbZIP63 Is a sensitive integrator of transient abscisic acid and glucose signalspt_BR
dc.contributor.authorMatiolli, Cleverson Carlos-
dc.contributor.authorTomaz, Juarez Pires-
dc.contributor.authorDuarte, Gustavo Turqueto-
dc.contributor.authorPrado, Fernanda Manso-
dc.contributor.authorDel Bem, Luiz Eduardo Vieira-
dc.contributor.authorSilveira, Amanda Bortolini-
dc.contributor.authorGauer, Luciane-
dc.contributor.authorCorrêa, Luiz Gustavo Guedes-
dc.contributor.authorDrumond, Rodrigo Duarte-
dc.contributor.authorViana, Amárico Josá Carvalho-
dc.contributor.authorDi Mascio, Paolo-
dc.contributor.authorMeyer, Christian-
dc.contributor.authorVincentz, Michel-
dc.subjectGlicosept_BR
dc.subjectFatores de transcrição de zíper de leucina básicapt_BR
dc.subject.otherlanguageGlucosept_BR
dc.subject.otherlanguageBasic-leucine zipper transcription factorspt_BR
dc.description.abstractGlucose modulates plant metabolism, growth, and development. In Arabidopsis (Arabidopsis thaliana), Hexokinase1 (HXK1) is a glucose sensor that may trigger abscisic acid (ABA) synthesis and sensitivity to mediate glucose-induced inhibition of seedling development. Here, we show that the intensity of short-term responses to glucose can vary with ABA activity. We report that the transient (2 h/4 h) repression by 2% glucose of AtbZIP63, a gene encoding a basic-leucine zipper (bZIP) transcription factor partially involved in the Snf1-related kinase KIN10-induced responses to energy limitation, is independent of HXK1 and is not mediated by changes in ABA levels. However, high-concentration (6%) glucose-mediated repression appears to be modulated by ABA, since full repression of AtbZIP63 requires a functional ABA biosynthetic pathway. Furthermore, the combination of glucose and ABA was able to trigger a synergistic repression of AtbZIP63 and its homologue AtbZIP3, revealing a shared regulatory feature consisting of the modulation of glucose sensitivity by ABA. The synergistic regulation of AtbZIP63 was not reproduced by an AtbZIP63 promoter-5′-untranslated region::β-glucuronidase fusion, thus suggesting possible posttranscriptional control. A transcriptional inhibition assay with cordycepin provided further evidence for the regulation of mRNA decay in response to glucose plus ABA. Overall, these results indicate that AtbZIP63 is an important node of the glucose-ABA interaction network. The mechanisms by which AtbZIP63 may participate in the fine-tuning of ABA-mediated abiotic stress responses according to sugar availability (i.e., energy status) are discussed.pt_BR
dc.relation.ispartofPlant Physiologypt_BR
dc.relation.ispartofabbreviationPlant. Physiol.pt_BR
dc.publisher.cityRockville, MDpt_BR
dc.publisher.countryEstados Unidospt_BR
dc.publisherAmerican Society of Plant Biologistspt_BR
dc.date.issued2011-
dc.date.monthofcirculationOct.pt_BR
dc.language.isoengpt_BR
dc.description.volume157pt_BR
dc.description.firstpage692pt_BR
dc.description.lastpage705pt_BR
dc.rightsFechadopt_BR
dc.sourcePUBMEDpt_BR
dc.identifier.issn1926-2014pt_BR
dc.identifier.doi10.1104/pp.111.181743pt_BR
dc.identifier.urlhttp://www.plantphysiol.org/content/157/2/692pt_BR
dc.date.available2020-08-17T15:53:06Z-
dc.date.accessioned2020-08-17T15:53:06Z-
dc.description.provenanceSubmitted by Cintia Oliveira de Moura (cintiaom@unicamp.br) on 2020-08-17T15:53:06Z No. of bitstreams: 0. Added 1 bitstream(s) on 2021-01-04T15:13:22Z : No. of bitstreams: 1 21844310.pdf: 1045733 bytes, checksum: 02a0e67415bd06468a30cca251fb5eb5 (MD5)en
dc.description.provenanceMade available in DSpace on 2020-08-17T15:53:06Z (GMT). No. of bitstreams: 0 Previous issue date: 2011en
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/347509-
dc.contributor.departmentsem informaçãopt_BR
dc.contributor.departmentsem informaçãopt_BR
dc.contributor.departmentsem informaçãopt_BR
dc.contributor.departmentsem informaçãopt_BR
dc.contributor.departmentsem informaçãopt_BR
dc.contributor.departmentDepartamento de Biologia Vegetalpt_BR
dc.contributor.unidadeInstituto de Biologiapt_BR
dc.identifier.source21844310pt_BR
dc.creator.orcid0000-0001-8185-7628pt_BR
dc.creator.orcid0000-0002-3248-4957pt_BR
dc.creator.orcid0000-0001-8472-4476pt_BR
dc.creator.orcid0000-0003-1469-4675pt_BR
dc.creator.orcid0000-0001-9509-0093pt_BR
dc.creator.orcid0000-0002-9850-1772pt_BR
dc.type.formArtigopt_BR
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