RT info:eu-repo/semantics/article
T1 Histological Changes Associated with the Graft Union Development in Tomato
A1 Frey Domínguez, Carlos
A1 Acebes Arranz, José Luis
A1 Encina García, Antonio Esteban
A1 Álvarez Nogal, Rafael
A2 Biologia Celular
K1 Biología
K1 Fisiología
K1 Callus
K1 Rootstock
K1 Scion
K1 Solanum lycopersicum
K1 Grafting
K1 Histology
K1 2417.16 Histología Vegetal
K1 2407.03 Morfología Celular
K1 2417.19 Fisiología Vegetal
AB [EN] Despite the importance of grafting in horticultural crops such as tomato (Solanum lycopersicum L.), the structural changes that occur during the graft establishment are little understood. Using histological techniques, the present work examines the time course of changes on the anatomical structure of the graft junction in functional tomato homografts and compares it to that of heterografts and non-functional grafts. No apparent differences were detected between homo- and heterografts, showing similar tissue development. At 10 days after grafting, the cell walls of the scion and rootstock in the area of the graft junction were thicker than usual. Undifferentiated cells and new vascular tissue emerged from the pre-existing vasculature. Adventitious roots appeared mainly on the scion, arising from the pre-existing vasculature. At 20 days, more pronounced vascular tissue was visible, along with large areas showing vascular connection. At 210 days, vestiges of the changes undergone in graft development were still visible. Generally, non-functional grafts presented layers of necrotic remains and deposition of cell wall material in the cut edges, impeding the suitable scion-rootstock connection. Our results show that accurate changes in pre-existing vasculature and the cell walls of the adhesion line are crucial to the development of functional grafts
PB MDPI
LK https://hdl.handle.net/10612/19908
UL https://hdl.handle.net/10612/19908
NO Frey, C., Acebes, J. L., Encina, A., & Álvarez, R. (2020). Histological changes associated with the graft union development in tomato. Plants, 9(11), Article e1479. https://doi.org/10.3390/PLANTS9111479
NO This article belongs to the Section Plant Cell Biology
DS BULERIA. Repositorio Institucional de la Universidad de León
RD Jul 7, 2024