RT info:eu-repo/semantics/article
T1 Tomato Graft Union Failure Is Associated with Alterations in Tissue Development and the Onset of Cell Wall Defense Responses
A1 Frey Domínguez, Carlos
A1 Álvarez Nogal, Rafael
A1 Encina García, Antonio Esteban
A1 Acebes Arranz, José Luis
A2 Fisiologia Vegetal
K1 Biología
K1 Callose
K1 Grafting
K1 Lignin
K1 Starch
K1 Suberin
K1 Sugars
K1 2417.16 Histología Vegetal
K1 2407.03 Morfología Celular
K1 2417.19 Fisiología Vegetal
AB [EN] Grafting is a technique applied to a considerable number of crops, with tomato standing out. However, this technique is limited by the obtaining of unfunctional grafts, which decrease the success rate and therefore the benefits achieved. The aim of this work was to analyze the failure in intraspecific grafting of tomato plants, focusing on tissue development, cell wall defense reactions, and the distribution of starch and soluble sugars at the graft junction. The success rate in autografts was higher than that of homografts and heterografts. Unfunctional homografts and heterografts showed similar responses: absence of vascular reconnections and lack of adhesion between scion and rootstock, even though callus cell clusters and differentiation of new vasculature were produced. The scions of unfunctional grafts accumulated more starch and soluble sugars than the rootstocks, showing a strong asymmetry in the response. In addition, three types of deposits were observed in the cell walls of unfunctional grafts: lignin, suberin, and callose, with the combined accumulation of more than one of them being frequent, particularly lignin and suberin. These deposits apparently prevent adhesion and seem to be a major cause of graft failure
PB MDPI
LK https://hdl.handle.net/10612/20035
UL https://hdl.handle.net/10612/20035
NO Frey, C., Álvarez, R., Encina, A., & Acebes, J. L. (2021). Tomato graft union failure is associated with alterations in tissue development and the onset of cell wall defense responses. Agronomy, 11(6) Article e1197. https://doi.org/10.3390/AGRONOMY11061197
NO This article belongs to the Special Issue Advances in Cell Wall Research of Crop Plants
DS BULERIA. Repositorio Institucional de la Universidad de León
RD Jul 7, 2024