Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1177458
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dc.contributor.authorRIBOLDI, L. B.eng
dc.contributor.authorROSSI, M. L.eng
dc.contributor.authorGRANER, E. M.eng
dc.contributor.authorALMEIDA, M. deeng
dc.contributor.authorCASTRO, P. R. de C. eeng
dc.contributor.authorFREITAS, S. T. deeng
dc.date.accessioned2025-07-23T14:49:55Z-
dc.date.available2025-07-23T14:49:55Z-
dc.date.created2025-07-23
dc.date.issued2025
dc.identifier.citationBrazilian Journal of Botany, v. 48, July, 2025.
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1177458-
dc.descriptionAuxin transport plays a key role in plant growth and organ abscission by regulating cell division and tissue diferentiation. In this study, we investigated the efects of 2,3,5-triiodobenzoic acid (TIBA), an auxin transport inhibitor, on tomato pedicel development, with a focus on the abscission zone. Using the model tomato ‘Micro-Tom’, TIBA treatment led to marked pedicel thickening due to increased periclinal cell division in cortical and procambial tissues. Histological analysis also revealed localized programmed cell death in the distal abscission zone, indicating a disruption of auxin gradients and possible activation of ethylene signaling pathways. These results show that auxin transport inhibition promotes both hyperplastic growth and cell separation processes, underscoring the complex hormonal crosstalk controlling abscission. TIBA’s efects on pedicel anatomy suggest potential applications in delaying fruit drop and extending harvest windows, although further research is needed to evaluate impacts on tomato fruit quality and plant performance, in commercial varieties. Keywords Auxin transport · TIBA · Abscission zone · Programmed cell death · Tomato pedicel · Ethylene
dc.language.isoeng
dc.rightsopenAccess
dc.titleAuxin transport inhibition triggers pedicel expansion and alters abscission zone dynamics in tomato fruit.
dc.typeArtigo de periódico
dc.subject.thesagroTomate
dc.description.notesOn-line.
riaa.ainfo.id1177458
riaa.ainfo.lastupdate2025-07-23
dc.identifier.doihttps://doi.org/10.1007/s40415-025-01102-6
dc.contributor.institutionLUCAS BAIOCHI RIBOLDI, UNIVERSITY OF SÃO PAULOeng
dc.contributor.institutionMÔNICA LANZONI ROSSI, UNIVERSITY OF SÃO PAULOeng
dc.contributor.institutionERIKA MENDES GRANER, UNIVERSITY OF SÃO PAULOeng
dc.contributor.institutionMARCÍLIO DE ALMEIDA, UNIVERSITY OF SÃO PAULOeng
dc.contributor.institutionPAULO ROBERTO DE CAMARGO E CASTRO, UNIVERSITY OF SÃO PAULOeng
dc.contributor.institutionSERGIO TONETTO DE FREITAS, CPATSA.eng
Appears in Collections:Artigo em periódico indexado (CPATSA)

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