1. RODNA
  2. CONICET
  3. CONICET
Registro completo de metadatos
Campo DC Valor Lengua/Idioma
dc.creatorde Godoy, Fabiana-
dc.creatorBermudez, Luisa-
dc.creatorSilvestre, Bruno Lira-
dc.creatorSouza, Amanda Pereira de-
dc.creatorElbl, Paula-
dc.creatorDemarco, Diego-
dc.creatorAlseekh, Saleh-
dc.creatorInsani, Marina-
dc.creatorBuckeridge, Marcos-
dc.creatorAlmeida, Juliana-
dc.creatorGrigioni, Gabriela Maria-
dc.creatorFernie, Alisdair Robert-
dc.creatorCarrari, Fernando Oscar-
dc.creatorRossi, Maria Magdalena-
dc.date2016-02-01T17:01:15Z-
dc.date2016-02-01T17:01:15Z-
dc.date2013-04-
dc.date2016-03-30 10:35:44.97925-03-
dc.date.accessioned2019-04-29T15:48:53Z-
dc.date.available2019-04-29T15:48:53Z-
dc.date.issued2013-04-
dc.identifierde Godoy, Fabiana; Bermudez, Luisa; Silvestre, Bruno Lira; Souza, Amanda Pereira de ; Elbl, Paula; et al.; Galacturonosyltransferase 4 silencing alters pectin composition and carbon partitioning in tomato; Oxford University Press; Journal of Experimental Botany; 64; 8; 4-2013; 2449-2466-
dc.identifier0022-0957-
dc.identifierhttp://hdl.handle.net/11336/3926-
dc.identifier.urihttp://rodna.bn.gov.ar:8080/jspui/handle/bnmm/302760-
dc.descriptionPectin is a main component of cell wall and the most complex family of polysaccharides in nature. Its composition is essential for the normal growth and morphology pattern, as demonstrated by pectin-defective mutant phenotypes. Besides this basic role in plant physiology, in tomato, pectin structure contributes to very important quality traits such as fruit firmness. Sixty seven different enzymatic activities have been sugested to be required for pectin biosynthesis but only a few genes have been identified and studied so far. In this work we characterized the tomato galacturonosyltransferase family and performed a detailed functional study of the GAUT4 gene. The tomato genome harbors all orthologous genes to those previously described in A. thaliana and a transcriptional profile revealed that the GAUT4 gene is expressed at higher levels in developing organs. GAUT4 silenced tomato plants exhibited an increment in vegetative biomass associated with the palisade parenchyma enlargement. Silenced fruits showed an altered pectin composition, accumulated less starch along with reduced amount of pectin that coincided with an increase in firmness. Moreover, harvest index was dramatically reduced as a consequence of reduction in the fruit weight and number. Altogether, these results suggest that, beyond its role in pectin biosynthesis, GAUT4 interferes with carbon metabolism, partitioning and allocation. Hence, this cell wall-related gene seems to be key in determining plant growth and fruit production in tomato.-
dc.descriptionFil: de Godoy, Fabiana. Universidade de São Paulo. Instituto de Biociências. Departamento de Botânica; Brasil-
dc.descriptionFil: Bermudez, Luisa. Universidade de São Paulo. Instituto de Biociências. Departamento de Botânica; Brasil-
dc.descriptionFil: Silvestre, Bruno Lira. Universidade de São Paulo. Instituto de Biociências. Departamento de Botânica; Brasil-
dc.descriptionFil: Souza, Amanda Pereira de . Universidade de São Paulo. Instituto de Biociências. Departamento de Botânica; Brasil-
dc.descriptionFil: Elbl, Paula. Universidade de São Paulo. Instituto de Biociências. Departamento de Botânica; Brasil-
dc.descriptionFil: Demarco, Diego. Universidade de São Paulo. Instituto de Biociências. Departamento de Botânica; Brasil-
dc.descriptionFil: Alseekh, Saleh. Max Planck Institute for Molecular Plant Physiology; Alemania-
dc.descriptionFil: Insani, Marina. Instituto Nacional de Tecnología Agropecuaria. Centro Nacional de Investigaciones Agropecuarias. Centro de Investigación de Ciencias Veterinarias y Agronómicas. Instituto de Biotecnología; Argentina-
dc.descriptionFil: Buckeridge, Marcos. Universidade de São Paulo. Instituto de Biociências. Departamento de Botânica; Brasil-
dc.descriptionFil: Almeida, Juliana. Universidade de São Paulo. Instituto de Biociências. Departamento de Botânica; Brasil-
dc.descriptionFil: Grigioni, Gabriela Maria. Instituto Nacional de Tecnología Agropecuaria. Centro Nacional de Investigaciones Agropecuarias. Centro de Investigación de Agroindustrias. Instituto de Tecnología de Alimentos; Argentina-
dc.descriptionFil: Fernie, Alisdair Robert. Max Planck Institute for Molecular Plant Physiology; Alemania-
dc.descriptionFil: Carrari, Fernando Oscar. Instituto Nacional de Tecnología Agropecuaria. Centro Nacional de Investigaciones Agropecuarias. Centro de Investigación de Ciencias Veterinarias y Agronómicas. Instituto de Biotecnología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina-
dc.descriptionFil: Rossi, Maria Magdalena. Universidade de São Paulo. Instituto de Biociências. Departamento de Botânica; Brasil-
dc.formatapplication/pdf-
dc.formatapplication/msword-
dc.formatapplication/pdf-
dc.languageeng-
dc.publisherOxford University Press-
dc.relationinfo:eu-repo/semantics/altIdentifier/url/http://jxb.oxfordjournals.org/content/64/8/2449.long-
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/doi:10.1093/jxb/ert106-
dc.relationinfo:eu-repo/semantics/altIdentifier/issn/0022-0957-
dc.relationinfo:eu-repo/semantics/altIdentifier/url/http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3654432/-
dc.rightsinfo:eu-repo/semantics/openAccess-
dc.rightshttps://creativecommons.org/licenses/by-nc/2.5/ar/-
dc.sourcereponame:CONICET Digital (CONICET)-
dc.sourceinstname:Consejo Nacional de Investigaciones Científicas y Técnicas-
dc.sourceinstacron:CONICET-
dc.source.urihttp://hdl.handle.net/11336/15641-
dc.subjectTomato-
dc.subjectFirmness-
dc.subjectGalaturonosyltransferase-
dc.subjectMetabolism-
dc.subjectCiencias de las Plantas, Botánica-
dc.subjectCiencias Biológicas-
dc.subjectCIENCIAS NATURALES Y EXACTAS-
dc.titleGalacturonosyltransferase 4 silencing alters pectin composition and carbon partitioning in tomato-
dc.typeinfo:eu-repo/semantics/article-
dc.typeinfo:eu-repo/semantics/publishedVersion-
dc.typeinfo:ar-repo/semantics/articulo-
Aparece en las colecciones: CONICET

Ficheros en este ítem:
No hay ficheros asociados a este ítem.
Mostrar el registro sencillo del ítem