2026-05-31T22:24:18Zhttps://riuma.uma.es/rest/oai/request

oai:riuma.uma.es:10630/345442026-02-03T11:09:56Zcom_10630_2254col_10630_37953

00925njm 22002777a 4500 dc Anguita-Maeso, Manuel author Trapero-Casas, Jose Luis author Olivares-García, Concepción author Ruano-Rosa, David author Palomo- Ríos, Elena author Jiménez-Díaz, Rafael M author Navas-Cortés, Juan A author Landa, Blanca B author 2021-03-03 Host resistance is the most practical, long-term, and economically efficient disease control measure for Verticillium wilt in olive caused by the xylem-invading fungus Verticillium dahliae (Vd), and it is at the core of the integrated disease management. Plant’s microbiome at the site of infection may have an influence on the host reaction to pathogens; however, the role of xylem microbial communities in the olive resistance to Vd has been overlooked and remains unexplored to date. This research was focused on elucidating whether in vitro olive propagation may alter the diversity and composition of the xylem-inhabiting microbiome and if those changes may modify the resistance response that a wild olive clone shows to the highly virulent defoliating (D) pathotype of Vd. Results indicated that although there were differences in microbial communities among the different propagation methodologies, most substantial changes occurred when plants were inoculated with Vd, regardless of whether the infection process took place, with a significant increase in the diversity of bacterial communities when the pathogen was present in the soil. Furthermore, it was noticeable that olive plants multiplied under in vitro conditions developed a susceptible reaction to D Vd, characterized by severe wilting symptoms and 100% vascular infection. Anguita-Maeso M, Trapero-Casas JL, Olivares-García C, Ruano-Rosa D, Palomo-Ríos E, Jiménez-Díaz RM, Navas-Cortés JA and Landa BB (2021) Verticillium dahliae Inoculation and in vitro Propagation Modify the Xylem Microbiome and Disease Reaction to Verticillium Wilt in a Wild Olive Genotype. Front. Plant Sci. 12:632689. doi: 10.3389/fpls.2021.632689 https://hdl.handle.net/10630/34544 doi: 10.3389/fpls.2021.632689 Hongos fitopatógenos Olivos-Enfermedades y plagas Verticillium dahliae inoculation and in vitro propagation modify the xylem microbiome and disease reaction to verticillium wilt in a wild olive genotype